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42 | \index Index |
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43 | \shortcut idx |
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46 | \secnumdepth 3 |
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47 | \tocdepth 3 |
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50 | \quotes_language english |
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59 | \end_header |
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60 | |
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61 | \begin_body |
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62 | |
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63 | \begin_layout Title |
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64 | STOPOS |
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65 | \end_layout |
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66 | |
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67 | \begin_layout Author |
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68 | Willem Vermin, willem.vermin@surfsara.nl |
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69 | \begin_inset Newline newline |
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70 | \end_inset |
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71 | |
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72 | Bas van der Vlies, bas.vandervlies@surfsara.nl |
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73 | \end_layout |
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74 | |
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75 | \begin_layout Date |
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76 | 2013-02-01 |
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77 | \end_layout |
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78 | |
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79 | \begin_layout Abstract |
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80 | In this article we describe the internals and externals of the program stopos. |
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81 | Stopos is primarily designed to facilitate the running of many tasks on |
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82 | a cluster computer. |
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83 | It is based on managing lines in a pool. |
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84 | These lines will in general be used as command lines to define tasks. |
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85 | Stopos is heavily inspired by ToPoS (https://grid.sara.nl/wiki/index.php/Using_the |
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86 | _Grid/ToPoS) and experiences with disparm (https://www.surfsara.nl/systems/lisa/so |
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87 | ftware/disparm). |
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88 | This project was carried out as a |
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89 | \begin_inset Quotes eld |
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90 | \end_inset |
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91 | |
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92 | seed-fund project |
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93 | \begin_inset Quotes erd |
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94 | \end_inset |
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95 | |
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96 | at SURFsara. |
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97 | \end_layout |
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98 | |
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99 | \begin_layout Subsection* |
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100 | Introduction |
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101 | \end_layout |
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102 | |
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103 | \begin_layout Standard |
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104 | A typical use of a cluster computer, such as SURFsara's Lisa system |
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105 | \begin_inset Foot |
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106 | status open |
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107 | |
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108 | \begin_layout Plain Layout |
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109 | https://www.surfsara.nl/systems/lisa |
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110 | \end_layout |
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111 | |
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112 | \end_inset |
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113 | |
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114 | , is running many tasks each task with different parameters. |
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115 | A typical example is a parameter scan. |
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116 | A typical job allocates a node, and runs a number of tasks in parallel. |
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117 | The number of tasks should in general be equal to the amount of cores and/or |
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118 | the amount of memory. |
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119 | Sometimes, thousands of these jobs are necessary, and normally, the job |
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120 | scripts are generated by a script. |
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121 | In a homogeneous cluster (all nodes have the same amount of cores and the |
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122 | same amount of memory) this is clumsy but doable, but when the cluster |
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123 | is heterogeneous (such as the Lisa cluster), it becomes very hard to use |
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124 | all types of nodes available, and adapt the number of processes to the |
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125 | node where the job runs on. |
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126 | To deal with this problems, stopos was created: a server that manages a |
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127 | pool of lines. |
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128 | These lines are defined by the user, and the server serves the lines to |
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129 | jobs, such that each line is produced once. |
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130 | Earlier successful solutions are ToPoS |
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131 | \begin_inset Foot |
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132 | status open |
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133 | |
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134 | \begin_layout Plain Layout |
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135 | https://grid.sara.nl/wiki/index.php/Using_the_Grid/ToPoS |
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136 | \end_layout |
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137 | |
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138 | \end_inset |
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139 | |
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140 | and disparm |
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141 | \begin_inset Foot |
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142 | status open |
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143 | |
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144 | \begin_layout Plain Layout |
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145 | https://www.surfsara.nl/systems/lisa/software/disparm |
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146 | \end_layout |
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147 | |
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148 | \end_inset |
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149 | |
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150 | . |
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151 | ToPoS is designed to be used on a server that can be accessed from the |
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152 | Grid, while disparm is based on files in the user's home directory. |
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153 | We think that ToPoS is not optimal for the Lisa system because of lack |
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154 | of cluster-based authentication and the universal access. |
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155 | The disparm approach is in these respects better, but in practice it appeared |
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156 | that the performance under heavy usage the performance was too low, and |
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157 | the reliability was not 100%: sometimes a line was produced more than once, |
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158 | or lines were not produced at all. |
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159 | Also, it is not possible to add lines dynamically: all lines have to be |
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160 | inserted at the beginning. |
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161 | We think that the approach followed in stopos is a well balanced solution, |
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162 | particularly fit to be used in a cluster environment. |
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163 | \end_layout |
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164 | |
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165 | \begin_layout Subsection* |
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166 | Usage |
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167 | \end_layout |
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168 | |
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169 | \begin_layout Standard |
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170 | A typical usage of stopos is: |
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171 | \end_layout |
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172 | |
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173 | \begin_layout Itemize |
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174 | fill the pool with lines |
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175 | \end_layout |
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176 | |
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177 | \begin_layout Itemize |
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178 | start jobs, each job gets one or more lines from the pool, and remove the |
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179 | lines that are not needed any more |
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180 | \begin_inset Foot |
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181 | status open |
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182 | |
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183 | \begin_layout Plain Layout |
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184 | Normally, a line is produced only once. |
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185 | However, the user can request that a line is produced and used again, for |
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186 | example in the case the previous task handling this line ran into a time |
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187 | limit. |
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188 | \end_layout |
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189 | |
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190 | \end_inset |
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191 | |
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192 | |
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193 | \end_layout |
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194 | |
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195 | \begin_layout Itemize |
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196 | maybe: add more lines to the pool |
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197 | \end_layout |
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198 | |
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199 | \begin_layout Standard |
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200 | Stopos is implemented as a shell function in the bash shell, or as an alias |
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201 | in the (t)csh shell. |
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202 | Stopos calls the program stoposclient and transforms it's output to environment |
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203 | variables, the most important being STOPOS_RC and STOPOS_VALUE. |
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204 | \end_layout |
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205 | |
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206 | \begin_layout Standard |
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207 | The commands to create the pool: |
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208 | \begin_inset Newline newline |
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209 | \end_inset |
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210 | |
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211 | |
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212 | \end_layout |
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213 | |
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214 | \begin_layout Standard |
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215 | |
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216 | \family typewriter |
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217 | \begin_inset space ~ |
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218 | \end_inset |
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219 | |
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220 | module load stopos |
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221 | \begin_inset space ~ |
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222 | \end_inset |
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223 | |
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224 | |
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225 | \begin_inset space ~ |
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226 | \end_inset |
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227 | |
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228 | |
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229 | \begin_inset space ~ |
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230 | \end_inset |
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231 | |
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233 | \begin_inset space ~ |
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234 | \end_inset |
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235 | |
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236 | |
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237 | \begin_inset space ~ |
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238 | \end_inset |
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239 | |
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240 | |
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241 | \begin_inset space ~ |
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242 | \end_inset |
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243 | |
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244 | # activate the stopos software |
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245 | \end_layout |
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246 | |
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247 | \begin_layout Standard |
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248 | |
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249 | \family typewriter |
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250 | \begin_inset space ~ |
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251 | \end_inset |
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252 | |
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253 | stopos create |
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254 | \begin_inset space ~ |
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255 | \end_inset |
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256 | |
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258 | \begin_inset space ~ |
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262 | \begin_inset space ~ |
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266 | \begin_inset space ~ |
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268 | |
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270 | \begin_inset space ~ |
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278 | \begin_inset space ~ |
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282 | \begin_inset space ~ |
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284 | |
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286 | \begin_inset space ~ |
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288 | |
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290 | \begin_inset space ~ |
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294 | \begin_inset space ~ |
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296 | |
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297 | |
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298 | \begin_inset space ~ |
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299 | \end_inset |
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300 | |
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301 | # create the pool |
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302 | \end_layout |
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303 | |
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304 | \begin_layout Standard |
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305 | |
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306 | \family typewriter |
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307 | \begin_inset space ~ |
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308 | \end_inset |
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309 | |
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310 | stopos add parmfile |
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311 | \begin_inset space ~ |
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312 | \end_inset |
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313 | |
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314 | |
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315 | \begin_inset space ~ |
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316 | \end_inset |
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317 | |
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318 | |
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319 | \begin_inset space ~ |
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320 | \end_inset |
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321 | |
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323 | \begin_inset space ~ |
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324 | \end_inset |
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325 | |
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326 | |
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327 | \begin_inset space ~ |
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328 | \end_inset |
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329 | |
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330 | |
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331 | \begin_inset space ~ |
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332 | \end_inset |
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333 | |
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334 | # add the lines in the file parmfile to the pool |
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335 | \begin_inset Newline newline |
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336 | \end_inset |
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337 | |
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338 | |
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339 | \end_layout |
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340 | |
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341 | \begin_layout Standard |
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342 | In a job script, one could use code like this: |
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343 | \begin_inset Newline newline |
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344 | \end_inset |
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345 | |
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346 | |
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347 | \begin_inset Newline newline |
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348 | \end_inset |
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349 | |
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350 | |
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351 | \family typewriter |
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352 | |
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353 | \begin_inset space ~ |
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354 | \end_inset |
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355 | |
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356 | module load stopos |
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357 | \begin_inset space ~ |
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358 | \end_inset |
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359 | |
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360 | |
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361 | \begin_inset space ~ |
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362 | \end_inset |
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365 | \begin_inset space ~ |
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379 | |
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381 | \begin_inset space ~ |
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382 | \end_inset |
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383 | |
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385 | \begin_inset space ~ |
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386 | \end_inset |
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395 | |
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396 | |
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397 | \begin_inset space ~ |
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398 | \end_inset |
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399 | |
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400 | # activate the stopos software |
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401 | \end_layout |
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402 | |
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403 | \begin_layout Standard |
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404 | |
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405 | \family typewriter |
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406 | \begin_inset space ~ |
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407 | \end_inset |
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408 | |
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409 | stopos next |
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410 | \begin_inset space ~ |
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411 | \end_inset |
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472 | |
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473 | |
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474 | \begin_inset space ~ |
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475 | \end_inset |
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476 | |
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477 | # get a line from the pool |
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478 | \end_layout |
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479 | |
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480 | \begin_layout Standard |
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481 | |
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482 | \family typewriter |
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483 | \begin_inset space ~ |
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484 | \end_inset |
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485 | |
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486 | if [ $STOPOS_RC = OK] ; then # check the return code |
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487 | \end_layout |
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488 | |
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489 | \begin_layout Standard |
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490 | |
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491 | \family typewriter |
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492 | \begin_inset space ~ |
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493 | \end_inset |
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494 | |
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495 | |
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496 | \begin_inset space ~ |
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497 | \end_inset |
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498 | |
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499 | |
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500 | \begin_inset space ~ |
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501 | \end_inset |
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502 | |
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503 | run_my_prog $STOPOS_VALUE |
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504 | \begin_inset space ~ |
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505 | \end_inset |
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506 | |
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507 | |
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508 | \begin_inset space ~ |
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509 | \end_inset |
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510 | |
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511 | # run the program using the line as parameter |
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512 | \end_layout |
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513 | |
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514 | \begin_layout Standard |
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515 | |
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516 | \family typewriter |
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517 | \begin_inset space ~ |
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518 | \end_inset |
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519 | |
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520 | fi |
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521 | \begin_inset Newline newline |
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522 | \end_inset |
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523 | |
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524 | |
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525 | \end_layout |
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526 | |
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527 | \begin_layout Standard |
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528 | A more elaborate job script, using all cores available on a node is available |
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529 | in the Appendix, together with the man page of stopos. |
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530 | \end_layout |
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531 | |
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532 | \begin_layout Subsection* |
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533 | Tasks and communication |
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534 | \end_layout |
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535 | |
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536 | \begin_layout Standard |
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537 | Stopos is a shell function or an alias that calls stoposclient. |
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538 | Stoposclient communicates with stoposserver via an http server (apache |
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539 | \begin_inset Foot |
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540 | status open |
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541 | |
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542 | \begin_layout Plain Layout |
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543 | http://httpd.apache.org/ |
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544 | \end_layout |
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545 | |
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546 | \end_inset |
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547 | |
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548 | , thttpd |
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549 | \begin_inset Foot |
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550 | status open |
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551 | |
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552 | \begin_layout Plain Layout |
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553 | http://opensource.dyc.edu/sthttpd |
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554 | \end_layout |
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555 | |
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556 | \end_inset |
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557 | |
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558 | , ...). |
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559 | The server sends commands to the server, and transforms the answers to |
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560 | a format that are sourced by stopos to define environment variables. |
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561 | Care is taken that communications between the client and the server are |
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562 | short in length: at most a few kilobytes are sent between client and server. |
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563 | |
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564 | \end_layout |
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565 | |
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566 | \begin_layout Subsubsection* |
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567 | Tasks of the client |
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568 | \end_layout |
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569 | |
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570 | \begin_layout Standard |
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571 | The client parses it's command line, sends the appropriate command to the |
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572 | server and receives the response. |
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573 | This response is put in a form that can be 'eval-ed' so that environment |
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574 | variables are set. |
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575 | \begin_inset Newline newline |
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576 | \end_inset |
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577 | |
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578 | |
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579 | \begin_inset Newline newline |
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580 | \end_inset |
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581 | |
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582 | The client recognizes the following commands on its command line: |
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583 | \end_layout |
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584 | |
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585 | \begin_layout Itemize |
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586 | |
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587 | \family typewriter |
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588 | -h,--h |
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672 | |
---|
673 | \begin_inset space ~ |
---|
674 | \end_inset |
---|
675 | |
---|
676 | |
---|
677 | \begin_inset space ~ |
---|
678 | \end_inset |
---|
679 | |
---|
680 | |
---|
681 | \begin_inset space ~ |
---|
682 | \end_inset |
---|
683 | |
---|
684 | |
---|
685 | \begin_inset space ~ |
---|
686 | \end_inset |
---|
687 | |
---|
688 | |
---|
689 | \begin_inset space ~ |
---|
690 | \end_inset |
---|
691 | |
---|
692 | |
---|
693 | \begin_inset space ~ |
---|
694 | \end_inset |
---|
695 | |
---|
696 | |
---|
697 | \begin_inset space ~ |
---|
698 | \end_inset |
---|
699 | |
---|
700 | : prints a short usage message |
---|
701 | \end_layout |
---|
702 | |
---|
703 | \begin_layout Itemize |
---|
704 | |
---|
705 | \family typewriter |
---|
706 | -v,--v |
---|
707 | \begin_inset space ~ |
---|
708 | \end_inset |
---|
709 | |
---|
710 | |
---|
711 | \begin_inset space ~ |
---|
712 | \end_inset |
---|
713 | |
---|
714 | |
---|
715 | \begin_inset space ~ |
---|
716 | \end_inset |
---|
717 | |
---|
718 | |
---|
719 | \begin_inset space ~ |
---|
720 | \end_inset |
---|
721 | |
---|
722 | |
---|
723 | \begin_inset space ~ |
---|
724 | \end_inset |
---|
725 | |
---|
726 | |
---|
727 | \begin_inset space ~ |
---|
728 | \end_inset |
---|
729 | |
---|
730 | |
---|
731 | \begin_inset space ~ |
---|
732 | \end_inset |
---|
733 | |
---|
734 | |
---|
735 | \begin_inset space ~ |
---|
736 | \end_inset |
---|
737 | |
---|
738 | |
---|
739 | \begin_inset space ~ |
---|
740 | \end_inset |
---|
741 | |
---|
742 | |
---|
743 | \begin_inset space ~ |
---|
744 | \end_inset |
---|
745 | |
---|
746 | |
---|
747 | \begin_inset space ~ |
---|
748 | \end_inset |
---|
749 | |
---|
750 | |
---|
751 | \begin_inset space ~ |
---|
752 | \end_inset |
---|
753 | |
---|
754 | |
---|
755 | \begin_inset space ~ |
---|
756 | \end_inset |
---|
757 | |
---|
758 | |
---|
759 | \begin_inset space ~ |
---|
760 | \end_inset |
---|
761 | |
---|
762 | |
---|
763 | \begin_inset space ~ |
---|
764 | \end_inset |
---|
765 | |
---|
766 | |
---|
767 | \begin_inset space ~ |
---|
768 | \end_inset |
---|
769 | |
---|
770 | |
---|
771 | \begin_inset space ~ |
---|
772 | \end_inset |
---|
773 | |
---|
774 | |
---|
775 | \begin_inset space ~ |
---|
776 | \end_inset |
---|
777 | |
---|
778 | |
---|
779 | \begin_inset space ~ |
---|
780 | \end_inset |
---|
781 | |
---|
782 | |
---|
783 | \begin_inset space ~ |
---|
784 | \end_inset |
---|
785 | |
---|
786 | |
---|
787 | \begin_inset space ~ |
---|
788 | \end_inset |
---|
789 | |
---|
790 | |
---|
791 | \begin_inset space ~ |
---|
792 | \end_inset |
---|
793 | |
---|
794 | |
---|
795 | \begin_inset space ~ |
---|
796 | \end_inset |
---|
797 | |
---|
798 | |
---|
799 | \begin_inset space ~ |
---|
800 | \end_inset |
---|
801 | |
---|
802 | |
---|
803 | \begin_inset space ~ |
---|
804 | \end_inset |
---|
805 | |
---|
806 | |
---|
807 | \begin_inset space ~ |
---|
808 | \end_inset |
---|
809 | |
---|
810 | |
---|
811 | \begin_inset space ~ |
---|
812 | \end_inset |
---|
813 | |
---|
814 | |
---|
815 | \begin_inset space ~ |
---|
816 | \end_inset |
---|
817 | |
---|
818 | : prints the version number |
---|
819 | \end_layout |
---|
820 | |
---|
821 | \begin_layout Itemize |
---|
822 | |
---|
823 | \family typewriter |
---|
824 | create [ -p,--pool POOL ] |
---|
825 | \begin_inset space ~ |
---|
826 | \end_inset |
---|
827 | |
---|
828 | |
---|
829 | \begin_inset space ~ |
---|
830 | \end_inset |
---|
831 | |
---|
832 | |
---|
833 | \begin_inset space ~ |
---|
834 | \end_inset |
---|
835 | |
---|
836 | |
---|
837 | \begin_inset space ~ |
---|
838 | \end_inset |
---|
839 | |
---|
840 | |
---|
841 | \begin_inset space ~ |
---|
842 | \end_inset |
---|
843 | |
---|
844 | |
---|
845 | \begin_inset space ~ |
---|
846 | \end_inset |
---|
847 | |
---|
848 | |
---|
849 | \begin_inset space ~ |
---|
850 | \end_inset |
---|
851 | |
---|
852 | |
---|
853 | \begin_inset space ~ |
---|
854 | \end_inset |
---|
855 | |
---|
856 | |
---|
857 | \begin_inset space ~ |
---|
858 | \end_inset |
---|
859 | |
---|
860 | : |
---|
861 | \family default |
---|
862 | create a pool |
---|
863 | \end_layout |
---|
864 | |
---|
865 | \begin_layout Itemize |
---|
866 | |
---|
867 | \family typewriter |
---|
868 | status [ -p,--pool POOL ] |
---|
869 | \begin_inset space ~ |
---|
870 | \end_inset |
---|
871 | |
---|
872 | |
---|
873 | \begin_inset space ~ |
---|
874 | \end_inset |
---|
875 | |
---|
876 | |
---|
877 | \begin_inset space ~ |
---|
878 | \end_inset |
---|
879 | |
---|
880 | |
---|
881 | \begin_inset space ~ |
---|
882 | \end_inset |
---|
883 | |
---|
884 | |
---|
885 | \begin_inset space ~ |
---|
886 | \end_inset |
---|
887 | |
---|
888 | |
---|
889 | \begin_inset space ~ |
---|
890 | \end_inset |
---|
891 | |
---|
892 | |
---|
893 | \begin_inset space ~ |
---|
894 | \end_inset |
---|
895 | |
---|
896 | |
---|
897 | \begin_inset space ~ |
---|
898 | \end_inset |
---|
899 | |
---|
900 | |
---|
901 | \begin_inset space ~ |
---|
902 | \end_inset |
---|
903 | |
---|
904 | : |
---|
905 | \family default |
---|
906 | get status from a pool |
---|
907 | \end_layout |
---|
908 | |
---|
909 | \begin_layout Itemize |
---|
910 | |
---|
911 | \family typewriter |
---|
912 | purge [ -p,--pool POOL] |
---|
913 | \begin_inset space ~ |
---|
914 | \end_inset |
---|
915 | |
---|
916 | |
---|
917 | \begin_inset space ~ |
---|
918 | \end_inset |
---|
919 | |
---|
920 | |
---|
921 | \begin_inset space ~ |
---|
922 | \end_inset |
---|
923 | |
---|
924 | |
---|
925 | \begin_inset space ~ |
---|
926 | \end_inset |
---|
927 | |
---|
928 | |
---|
929 | \begin_inset space ~ |
---|
930 | \end_inset |
---|
931 | |
---|
932 | |
---|
933 | \begin_inset space ~ |
---|
934 | \end_inset |
---|
935 | |
---|
936 | |
---|
937 | \begin_inset space ~ |
---|
938 | \end_inset |
---|
939 | |
---|
940 | |
---|
941 | \begin_inset space ~ |
---|
942 | \end_inset |
---|
943 | |
---|
944 | |
---|
945 | \begin_inset space ~ |
---|
946 | \end_inset |
---|
947 | |
---|
948 | |
---|
949 | \begin_inset space ~ |
---|
950 | \end_inset |
---|
951 | |
---|
952 | |
---|
953 | \begin_inset space ~ |
---|
954 | \end_inset |
---|
955 | |
---|
956 | : |
---|
957 | \family default |
---|
958 | remove a pool |
---|
959 | \end_layout |
---|
960 | |
---|
961 | \begin_layout Itemize |
---|
962 | |
---|
963 | \family typewriter |
---|
964 | pools |
---|
965 | \begin_inset space ~ |
---|
966 | \end_inset |
---|
967 | |
---|
968 | |
---|
969 | \begin_inset space ~ |
---|
970 | \end_inset |
---|
971 | |
---|
972 | |
---|
973 | \begin_inset space ~ |
---|
974 | \end_inset |
---|
975 | |
---|
976 | |
---|
977 | \begin_inset space ~ |
---|
978 | \end_inset |
---|
979 | |
---|
980 | |
---|
981 | \begin_inset space ~ |
---|
982 | \end_inset |
---|
983 | |
---|
984 | |
---|
985 | \begin_inset space ~ |
---|
986 | \end_inset |
---|
987 | |
---|
988 | |
---|
989 | \begin_inset space ~ |
---|
990 | \end_inset |
---|
991 | |
---|
992 | |
---|
993 | \begin_inset space ~ |
---|
994 | \end_inset |
---|
995 | |
---|
996 | |
---|
997 | \begin_inset space ~ |
---|
998 | \end_inset |
---|
999 | |
---|
1000 | |
---|
1001 | \begin_inset space ~ |
---|
1002 | \end_inset |
---|
1003 | |
---|
1004 | |
---|
1005 | \begin_inset space ~ |
---|
1006 | \end_inset |
---|
1007 | |
---|
1008 | |
---|
1009 | \begin_inset space ~ |
---|
1010 | \end_inset |
---|
1011 | |
---|
1012 | |
---|
1013 | \begin_inset space ~ |
---|
1014 | \end_inset |
---|
1015 | |
---|
1016 | |
---|
1017 | \begin_inset space ~ |
---|
1018 | \end_inset |
---|
1019 | |
---|
1020 | |
---|
1021 | \begin_inset space ~ |
---|
1022 | \end_inset |
---|
1023 | |
---|
1024 | |
---|
1025 | \begin_inset space ~ |
---|
1026 | \end_inset |
---|
1027 | |
---|
1028 | |
---|
1029 | \begin_inset space ~ |
---|
1030 | \end_inset |
---|
1031 | |
---|
1032 | |
---|
1033 | \begin_inset space ~ |
---|
1034 | \end_inset |
---|
1035 | |
---|
1036 | |
---|
1037 | \begin_inset space ~ |
---|
1038 | \end_inset |
---|
1039 | |
---|
1040 | |
---|
1041 | \begin_inset space ~ |
---|
1042 | \end_inset |
---|
1043 | |
---|
1044 | |
---|
1045 | \begin_inset space ~ |
---|
1046 | \end_inset |
---|
1047 | |
---|
1048 | |
---|
1049 | \begin_inset space ~ |
---|
1050 | \end_inset |
---|
1051 | |
---|
1052 | |
---|
1053 | \begin_inset space ~ |
---|
1054 | \end_inset |
---|
1055 | |
---|
1056 | |
---|
1057 | \begin_inset space ~ |
---|
1058 | \end_inset |
---|
1059 | |
---|
1060 | |
---|
1061 | \begin_inset space ~ |
---|
1062 | \end_inset |
---|
1063 | |
---|
1064 | |
---|
1065 | \begin_inset space ~ |
---|
1066 | \end_inset |
---|
1067 | |
---|
1068 | |
---|
1069 | \begin_inset space ~ |
---|
1070 | \end_inset |
---|
1071 | |
---|
1072 | |
---|
1073 | \begin_inset space ~ |
---|
1074 | \end_inset |
---|
1075 | |
---|
1076 | |
---|
1077 | \begin_inset space ~ |
---|
1078 | \end_inset |
---|
1079 | |
---|
1080 | : |
---|
1081 | \family default |
---|
1082 | what are my pools |
---|
1083 | \end_layout |
---|
1084 | |
---|
1085 | \begin_layout Itemize |
---|
1086 | |
---|
1087 | \family typewriter |
---|
1088 | add [ -p,--pool POOL] [ FILENAME ]: |
---|
1089 | \family default |
---|
1090 | add a file to the pool |
---|
1091 | \end_layout |
---|
1092 | |
---|
1093 | \begin_layout Itemize |
---|
1094 | |
---|
1095 | \family typewriter |
---|
1096 | next [-m,--multi] |
---|
1097 | \begin_inset space ~ |
---|
1098 | \end_inset |
---|
1099 | |
---|
1100 | |
---|
1101 | \begin_inset space ~ |
---|
1102 | \end_inset |
---|
1103 | |
---|
1104 | |
---|
1105 | \begin_inset space ~ |
---|
1106 | \end_inset |
---|
1107 | |
---|
1108 | |
---|
1109 | \begin_inset space ~ |
---|
1110 | \end_inset |
---|
1111 | |
---|
1112 | |
---|
1113 | \begin_inset space ~ |
---|
1114 | \end_inset |
---|
1115 | |
---|
1116 | |
---|
1117 | \begin_inset space ~ |
---|
1118 | \end_inset |
---|
1119 | |
---|
1120 | |
---|
1121 | \begin_inset space ~ |
---|
1122 | \end_inset |
---|
1123 | |
---|
1124 | |
---|
1125 | \begin_inset space ~ |
---|
1126 | \end_inset |
---|
1127 | |
---|
1128 | |
---|
1129 | \begin_inset space ~ |
---|
1130 | \end_inset |
---|
1131 | |
---|
1132 | |
---|
1133 | \begin_inset space ~ |
---|
1134 | \end_inset |
---|
1135 | |
---|
1136 | |
---|
1137 | \begin_inset space ~ |
---|
1138 | \end_inset |
---|
1139 | |
---|
1140 | |
---|
1141 | \begin_inset space ~ |
---|
1142 | \end_inset |
---|
1143 | |
---|
1144 | |
---|
1145 | \begin_inset space ~ |
---|
1146 | \end_inset |
---|
1147 | |
---|
1148 | |
---|
1149 | \begin_inset space ~ |
---|
1150 | \end_inset |
---|
1151 | |
---|
1152 | |
---|
1153 | \begin_inset space ~ |
---|
1154 | \end_inset |
---|
1155 | |
---|
1156 | |
---|
1157 | \begin_inset space ~ |
---|
1158 | \end_inset |
---|
1159 | |
---|
1160 | |
---|
1161 | \begin_inset space ~ |
---|
1162 | \end_inset |
---|
1163 | |
---|
1164 | : |
---|
1165 | \family default |
---|
1166 | get next line from the pool |
---|
1167 | \end_layout |
---|
1168 | |
---|
1169 | \begin_layout Itemize |
---|
1170 | |
---|
1171 | \family typewriter |
---|
1172 | remove [ KEY ] |
---|
1173 | \begin_inset space ~ |
---|
1174 | \end_inset |
---|
1175 | |
---|
1176 | |
---|
1177 | \begin_inset space ~ |
---|
1178 | \end_inset |
---|
1179 | |
---|
1180 | |
---|
1181 | \begin_inset space ~ |
---|
1182 | \end_inset |
---|
1183 | |
---|
1184 | |
---|
1185 | \begin_inset space ~ |
---|
1186 | \end_inset |
---|
1187 | |
---|
1188 | |
---|
1189 | \begin_inset space ~ |
---|
1190 | \end_inset |
---|
1191 | |
---|
1192 | |
---|
1193 | \begin_inset space ~ |
---|
1194 | \end_inset |
---|
1195 | |
---|
1196 | |
---|
1197 | \begin_inset space ~ |
---|
1198 | \end_inset |
---|
1199 | |
---|
1200 | |
---|
1201 | \begin_inset space ~ |
---|
1202 | \end_inset |
---|
1203 | |
---|
1204 | |
---|
1205 | \begin_inset space ~ |
---|
1206 | \end_inset |
---|
1207 | |
---|
1208 | |
---|
1209 | \begin_inset space ~ |
---|
1210 | \end_inset |
---|
1211 | |
---|
1212 | |
---|
1213 | \begin_inset space ~ |
---|
1214 | \end_inset |
---|
1215 | |
---|
1216 | |
---|
1217 | \begin_inset space ~ |
---|
1218 | \end_inset |
---|
1219 | |
---|
1220 | |
---|
1221 | \begin_inset space ~ |
---|
1222 | \end_inset |
---|
1223 | |
---|
1224 | |
---|
1225 | \begin_inset space ~ |
---|
1226 | \end_inset |
---|
1227 | |
---|
1228 | |
---|
1229 | \begin_inset space ~ |
---|
1230 | \end_inset |
---|
1231 | |
---|
1232 | |
---|
1233 | \begin_inset space ~ |
---|
1234 | \end_inset |
---|
1235 | |
---|
1236 | |
---|
1237 | \begin_inset space ~ |
---|
1238 | \end_inset |
---|
1239 | |
---|
1240 | |
---|
1241 | \begin_inset space ~ |
---|
1242 | \end_inset |
---|
1243 | |
---|
1244 | |
---|
1245 | \begin_inset space ~ |
---|
1246 | \end_inset |
---|
1247 | |
---|
1248 | |
---|
1249 | \begin_inset space ~ |
---|
1250 | \end_inset |
---|
1251 | |
---|
1252 | : |
---|
1253 | \family default |
---|
1254 | remove line |
---|
1255 | \end_layout |
---|
1256 | |
---|
1257 | \begin_layout Itemize |
---|
1258 | |
---|
1259 | \family typewriter |
---|
1260 | dump [ -p,--p POOL ] |
---|
1261 | \begin_inset space ~ |
---|
1262 | \end_inset |
---|
1263 | |
---|
1264 | |
---|
1265 | \begin_inset space ~ |
---|
1266 | \end_inset |
---|
1267 | |
---|
1268 | |
---|
1269 | \begin_inset space ~ |
---|
1270 | \end_inset |
---|
1271 | |
---|
1272 | |
---|
1273 | \begin_inset space ~ |
---|
1274 | \end_inset |
---|
1275 | |
---|
1276 | |
---|
1277 | \begin_inset space ~ |
---|
1278 | \end_inset |
---|
1279 | |
---|
1280 | |
---|
1281 | \begin_inset space ~ |
---|
1282 | \end_inset |
---|
1283 | |
---|
1284 | |
---|
1285 | \begin_inset space ~ |
---|
1286 | \end_inset |
---|
1287 | |
---|
1288 | |
---|
1289 | \begin_inset space ~ |
---|
1290 | \end_inset |
---|
1291 | |
---|
1292 | |
---|
1293 | \begin_inset space ~ |
---|
1294 | \end_inset |
---|
1295 | |
---|
1296 | |
---|
1297 | \begin_inset space ~ |
---|
1298 | \end_inset |
---|
1299 | |
---|
1300 | |
---|
1301 | \begin_inset space ~ |
---|
1302 | \end_inset |
---|
1303 | |
---|
1304 | |
---|
1305 | \begin_inset space ~ |
---|
1306 | \end_inset |
---|
1307 | |
---|
1308 | |
---|
1309 | \begin_inset space ~ |
---|
1310 | \end_inset |
---|
1311 | |
---|
1312 | |
---|
1313 | \begin_inset space ~ |
---|
1314 | \end_inset |
---|
1315 | |
---|
1316 | : |
---|
1317 | \family default |
---|
1318 | dump a line from the pool |
---|
1319 | \end_layout |
---|
1320 | |
---|
1321 | \begin_layout Standard |
---|
1322 | For example: |
---|
1323 | \begin_inset Newline newline |
---|
1324 | \end_inset |
---|
1325 | |
---|
1326 | |
---|
1327 | \begin_inset Newline newline |
---|
1328 | \end_inset |
---|
1329 | |
---|
1330 | |
---|
1331 | \family typewriter |
---|
1332 | stopos create -p mypool1 |
---|
1333 | \end_layout |
---|
1334 | |
---|
1335 | \begin_layout Standard |
---|
1336 | |
---|
1337 | \family typewriter |
---|
1338 | stopos add -p mypool1 parmfile |
---|
1339 | \begin_inset Newline newline |
---|
1340 | \end_inset |
---|
1341 | |
---|
1342 | |
---|
1343 | \end_layout |
---|
1344 | |
---|
1345 | \begin_layout Standard |
---|
1346 | The -p (or --pool) flag defines the name of the pool file to be used ( |
---|
1347 | \begin_inset Quotes eld |
---|
1348 | \end_inset |
---|
1349 | |
---|
1350 | parmfile |
---|
1351 | \begin_inset Quotes erd |
---|
1352 | \end_inset |
---|
1353 | |
---|
1354 | in this example). |
---|
1355 | If no -p or --pool flag is present, the value of the pool is taken from |
---|
1356 | the environment variable STOPOS_POOL. |
---|
1357 | If that is not available, the value |
---|
1358 | \begin_inset Quotes eld |
---|
1359 | \end_inset |
---|
1360 | |
---|
1361 | pool |
---|
1362 | \begin_inset Quotes erd |
---|
1363 | \end_inset |
---|
1364 | |
---|
1365 | is used. |
---|
1366 | \end_layout |
---|
1367 | |
---|
1368 | \begin_layout Standard |
---|
1369 | The -m (or --multi) flag signifies that lines that are already produces, |
---|
1370 | may be produced again. |
---|
1371 | \end_layout |
---|
1372 | |
---|
1373 | \begin_layout Standard |
---|
1374 | The default for FILENAME is standard input. |
---|
1375 | \end_layout |
---|
1376 | |
---|
1377 | \begin_layout Standard |
---|
1378 | If no value is given for KEY with the |
---|
1379 | \begin_inset Quotes eld |
---|
1380 | \end_inset |
---|
1381 | |
---|
1382 | remove |
---|
1383 | \begin_inset Quotes erd |
---|
1384 | \end_inset |
---|
1385 | |
---|
1386 | command, the value of the environment variable STOPOS_KEY is used. |
---|
1387 | This value is set by the |
---|
1388 | \begin_inset Quotes eld |
---|
1389 | \end_inset |
---|
1390 | |
---|
1391 | next |
---|
1392 | \begin_inset Quotes erd |
---|
1393 | \end_inset |
---|
1394 | |
---|
1395 | command. |
---|
1396 | \begin_inset Newline newline |
---|
1397 | \end_inset |
---|
1398 | |
---|
1399 | |
---|
1400 | \begin_inset Newline newline |
---|
1401 | \end_inset |
---|
1402 | |
---|
1403 | The following environment variables are set by the command |
---|
1404 | \begin_inset Quotes eld |
---|
1405 | \end_inset |
---|
1406 | |
---|
1407 | stopos |
---|
1408 | \begin_inset Quotes erd |
---|
1409 | \end_inset |
---|
1410 | |
---|
1411 | : |
---|
1412 | \end_layout |
---|
1413 | |
---|
1414 | \begin_layout Itemize |
---|
1415 | |
---|
1416 | \family typewriter |
---|
1417 | STOPOS_RC |
---|
1418 | \begin_inset space ~ |
---|
1419 | \end_inset |
---|
1420 | |
---|
1421 | |
---|
1422 | \begin_inset space ~ |
---|
1423 | \end_inset |
---|
1424 | |
---|
1425 | |
---|
1426 | \begin_inset space ~ |
---|
1427 | \end_inset |
---|
1428 | |
---|
1429 | |
---|
1430 | \begin_inset space ~ |
---|
1431 | \end_inset |
---|
1432 | |
---|
1433 | |
---|
1434 | \begin_inset space ~ |
---|
1435 | \end_inset |
---|
1436 | |
---|
1437 | |
---|
1438 | \begin_inset space ~ |
---|
1439 | \end_inset |
---|
1440 | |
---|
1441 | |
---|
1442 | \begin_inset space ~ |
---|
1443 | \end_inset |
---|
1444 | |
---|
1445 | : |
---|
1446 | \family default |
---|
1447 | return code of the command. |
---|
1448 | The value |
---|
1449 | \begin_inset Quotes eld |
---|
1450 | \end_inset |
---|
1451 | |
---|
1452 | OK |
---|
1453 | \begin_inset Quotes erd |
---|
1454 | \end_inset |
---|
1455 | |
---|
1456 | means that things went well |
---|
1457 | \end_layout |
---|
1458 | |
---|
1459 | \begin_layout Itemize |
---|
1460 | |
---|
1461 | \family typewriter |
---|
1462 | STOPOS_VALUE |
---|
1463 | \begin_inset space ~ |
---|
1464 | \end_inset |
---|
1465 | |
---|
1466 | |
---|
1467 | \begin_inset space ~ |
---|
1468 | \end_inset |
---|
1469 | |
---|
1470 | |
---|
1471 | \begin_inset space ~ |
---|
1472 | \end_inset |
---|
1473 | |
---|
1474 | |
---|
1475 | \begin_inset space ~ |
---|
1476 | \end_inset |
---|
1477 | |
---|
1478 | : |
---|
1479 | \family default |
---|
1480 | result of the |
---|
1481 | \begin_inset Quotes eld |
---|
1482 | \end_inset |
---|
1483 | |
---|
1484 | next |
---|
1485 | \begin_inset Quotes erd |
---|
1486 | \end_inset |
---|
1487 | |
---|
1488 | and |
---|
1489 | \begin_inset Quotes eld |
---|
1490 | \end_inset |
---|
1491 | |
---|
1492 | pools |
---|
1493 | \begin_inset Quotes erd |
---|
1494 | \end_inset |
---|
1495 | |
---|
1496 | command |
---|
1497 | \end_layout |
---|
1498 | |
---|
1499 | \begin_layout Itemize |
---|
1500 | |
---|
1501 | \family typewriter |
---|
1502 | STOPOS_COMMITTED : |
---|
1503 | \family default |
---|
1504 | number of times the |
---|
1505 | \begin_inset Quotes eld |
---|
1506 | \end_inset |
---|
1507 | |
---|
1508 | next |
---|
1509 | \begin_inset Quotes erd |
---|
1510 | \end_inset |
---|
1511 | |
---|
1512 | line was produced |
---|
1513 | \end_layout |
---|
1514 | |
---|
1515 | \begin_layout Itemize |
---|
1516 | |
---|
1517 | \family typewriter |
---|
1518 | STOPOS_KEY |
---|
1519 | \begin_inset space ~ |
---|
1520 | \end_inset |
---|
1521 | |
---|
1522 | |
---|
1523 | \begin_inset space ~ |
---|
1524 | \end_inset |
---|
1525 | |
---|
1526 | |
---|
1527 | \begin_inset space ~ |
---|
1528 | \end_inset |
---|
1529 | |
---|
1530 | |
---|
1531 | \begin_inset space ~ |
---|
1532 | \end_inset |
---|
1533 | |
---|
1534 | |
---|
1535 | \begin_inset space ~ |
---|
1536 | \end_inset |
---|
1537 | |
---|
1538 | |
---|
1539 | \begin_inset space ~ |
---|
1540 | \end_inset |
---|
1541 | |
---|
1542 | : |
---|
1543 | \family default |
---|
1544 | set by the |
---|
1545 | \begin_inset Quotes eld |
---|
1546 | \end_inset |
---|
1547 | |
---|
1548 | next |
---|
1549 | \begin_inset Quotes erd |
---|
1550 | \end_inset |
---|
1551 | |
---|
1552 | command. |
---|
1553 | Used by the |
---|
1554 | \begin_inset Quotes eld |
---|
1555 | \end_inset |
---|
1556 | |
---|
1557 | remove |
---|
1558 | \begin_inset Quotes erd |
---|
1559 | \end_inset |
---|
1560 | |
---|
1561 | command |
---|
1562 | \end_layout |
---|
1563 | |
---|
1564 | \begin_layout Itemize |
---|
1565 | |
---|
1566 | \family typewriter |
---|
1567 | STOPOS_COUNT |
---|
1568 | \begin_inset space ~ |
---|
1569 | \end_inset |
---|
1570 | |
---|
1571 | |
---|
1572 | \begin_inset space ~ |
---|
1573 | \end_inset |
---|
1574 | |
---|
1575 | |
---|
1576 | \begin_inset space ~ |
---|
1577 | \end_inset |
---|
1578 | |
---|
1579 | |
---|
1580 | \begin_inset space ~ |
---|
1581 | \end_inset |
---|
1582 | |
---|
1583 | : |
---|
1584 | \family default |
---|
1585 | set by |
---|
1586 | \begin_inset Quotes eld |
---|
1587 | \end_inset |
---|
1588 | |
---|
1589 | status |
---|
1590 | \begin_inset Quotes erd |
---|
1591 | \end_inset |
---|
1592 | |
---|
1593 | : number of lines added to the pool |
---|
1594 | \end_layout |
---|
1595 | |
---|
1596 | \begin_layout Itemize |
---|
1597 | |
---|
1598 | \family typewriter |
---|
1599 | STOPOS_PRESENT |
---|
1600 | \begin_inset space ~ |
---|
1601 | \end_inset |
---|
1602 | |
---|
1603 | |
---|
1604 | \begin_inset space ~ |
---|
1605 | \end_inset |
---|
1606 | |
---|
1607 | |
---|
1608 | \begin_inset space ~ |
---|
1609 | \end_inset |
---|
1610 | |
---|
1611 | : |
---|
1612 | \family default |
---|
1613 | set by |
---|
1614 | \begin_inset Quotes eld |
---|
1615 | \end_inset |
---|
1616 | |
---|
1617 | status |
---|
1618 | \begin_inset Quotes erd |
---|
1619 | \end_inset |
---|
1620 | |
---|
1621 | : number of lines in the pool |
---|
1622 | \end_layout |
---|
1623 | |
---|
1624 | \begin_layout Itemize |
---|
1625 | |
---|
1626 | \family typewriter |
---|
1627 | STOPOS_PRESENT0 |
---|
1628 | \begin_inset space ~ |
---|
1629 | \end_inset |
---|
1630 | |
---|
1631 | |
---|
1632 | \begin_inset space ~ |
---|
1633 | \end_inset |
---|
1634 | |
---|
1635 | : |
---|
1636 | \family default |
---|
1637 | set by |
---|
1638 | \begin_inset Quotes eld |
---|
1639 | \end_inset |
---|
1640 | |
---|
1641 | status |
---|
1642 | \begin_inset Quotes erd |
---|
1643 | \end_inset |
---|
1644 | |
---|
1645 | : number of lines never been committed |
---|
1646 | \end_layout |
---|
1647 | |
---|
1648 | \begin_layout Standard |
---|
1649 | Another task is creating a unique id for the user. |
---|
1650 | This id, combined with the login name of the user and the name of the pool, |
---|
1651 | will be used by the server to identify the pool to be used. |
---|
1652 | The id is stored in the HOME directory of the user, in the file $HOME/.stopos/rc. |
---|
1653 | If this file is missing, or inappropriate, the client will create this |
---|
1654 | file. |
---|
1655 | \begin_inset Newline newline |
---|
1656 | \end_inset |
---|
1657 | |
---|
1658 | |
---|
1659 | \begin_inset Newline newline |
---|
1660 | \end_inset |
---|
1661 | |
---|
1662 | All commands result in a single communication with the server, except the |
---|
1663 | |
---|
1664 | \begin_inset Quotes eld |
---|
1665 | \end_inset |
---|
1666 | |
---|
1667 | add |
---|
1668 | \begin_inset Quotes erd |
---|
1669 | \end_inset |
---|
1670 | |
---|
1671 | command: the client will send a number of |
---|
1672 | \begin_inset Quotes eld |
---|
1673 | \end_inset |
---|
1674 | |
---|
1675 | add |
---|
1676 | \begin_inset Quotes erd |
---|
1677 | \end_inset |
---|
1678 | |
---|
1679 | commands to the server, one for each line of the file. |
---|
1680 | \begin_inset Newline newline |
---|
1681 | \end_inset |
---|
1682 | |
---|
1683 | |
---|
1684 | \begin_inset Newline newline |
---|
1685 | \end_inset |
---|
1686 | |
---|
1687 | The |
---|
1688 | \begin_inset Quotes eld |
---|
1689 | \end_inset |
---|
1690 | |
---|
1691 | dump |
---|
1692 | \begin_inset Quotes erd |
---|
1693 | \end_inset |
---|
1694 | |
---|
1695 | command is kind of special. |
---|
1696 | It is created for the case a user wants to inspect the actual contents |
---|
1697 | of the pool. |
---|
1698 | The |
---|
1699 | \begin_inset Quotes eld |
---|
1700 | \end_inset |
---|
1701 | |
---|
1702 | dump |
---|
1703 | \begin_inset Quotes erd |
---|
1704 | \end_inset |
---|
1705 | |
---|
1706 | command will produce one line per call, and does not interfere with the |
---|
1707 | other commands. |
---|
1708 | (More specific: the |
---|
1709 | \begin_inset Quotes eld |
---|
1710 | \end_inset |
---|
1711 | |
---|
1712 | next |
---|
1713 | \begin_inset Quotes erd |
---|
1714 | \end_inset |
---|
1715 | |
---|
1716 | command and the |
---|
1717 | \begin_inset Quotes eld |
---|
1718 | \end_inset |
---|
1719 | |
---|
1720 | dump |
---|
1721 | \begin_inset Quotes erd |
---|
1722 | \end_inset |
---|
1723 | |
---|
1724 | command use different pointers) When the last line has been produced, the |
---|
1725 | next call will result in an error code (STOPOS_RC != OK). |
---|
1726 | Then the next call will start again at the first available record in the |
---|
1727 | pool. |
---|
1728 | |
---|
1729 | \end_layout |
---|
1730 | |
---|
1731 | \begin_layout Subsubsection* |
---|
1732 | Messages from client to server |
---|
1733 | \end_layout |
---|
1734 | |
---|
1735 | \begin_layout Standard |
---|
1736 | A message from client to server consists of the following fields: |
---|
1737 | \end_layout |
---|
1738 | |
---|
1739 | \begin_layout Itemize |
---|
1740 | |
---|
1741 | \family typewriter |
---|
1742 | stopos |
---|
1743 | \begin_inset space ~ |
---|
1744 | \end_inset |
---|
1745 | |
---|
1746 | |
---|
1747 | \begin_inset space ~ |
---|
1748 | \end_inset |
---|
1749 | |
---|
1750 | |
---|
1751 | \begin_inset space ~ |
---|
1752 | \end_inset |
---|
1753 | |
---|
1754 | : |
---|
1755 | \family default |
---|
1756 | the string |
---|
1757 | \begin_inset Quotes eld |
---|
1758 | \end_inset |
---|
1759 | |
---|
1760 | stopos |
---|
1761 | \begin_inset Quotes erd |
---|
1762 | \end_inset |
---|
1763 | |
---|
1764 | |
---|
1765 | \end_layout |
---|
1766 | |
---|
1767 | \begin_layout Itemize |
---|
1768 | |
---|
1769 | \family typewriter |
---|
1770 | prot |
---|
1771 | \begin_inset space ~ |
---|
1772 | \end_inset |
---|
1773 | |
---|
1774 | |
---|
1775 | \begin_inset space ~ |
---|
1776 | \end_inset |
---|
1777 | |
---|
1778 | |
---|
1779 | \begin_inset space ~ |
---|
1780 | \end_inset |
---|
1781 | |
---|
1782 | |
---|
1783 | \begin_inset space ~ |
---|
1784 | \end_inset |
---|
1785 | |
---|
1786 | |
---|
1787 | \begin_inset space ~ |
---|
1788 | \end_inset |
---|
1789 | |
---|
1790 | : |
---|
1791 | \family default |
---|
1792 | the protocol to be used (i.e. |
---|
1793 | which kind of database) |
---|
1794 | \end_layout |
---|
1795 | |
---|
1796 | \begin_layout Itemize |
---|
1797 | |
---|
1798 | \family typewriter |
---|
1799 | id |
---|
1800 | \begin_inset space ~ |
---|
1801 | \end_inset |
---|
1802 | |
---|
1803 | |
---|
1804 | \begin_inset space ~ |
---|
1805 | \end_inset |
---|
1806 | |
---|
1807 | |
---|
1808 | \begin_inset space ~ |
---|
1809 | \end_inset |
---|
1810 | |
---|
1811 | |
---|
1812 | \begin_inset space ~ |
---|
1813 | \end_inset |
---|
1814 | |
---|
1815 | |
---|
1816 | \begin_inset space ~ |
---|
1817 | \end_inset |
---|
1818 | |
---|
1819 | |
---|
1820 | \begin_inset space ~ |
---|
1821 | \end_inset |
---|
1822 | |
---|
1823 | |
---|
1824 | \begin_inset space ~ |
---|
1825 | \end_inset |
---|
1826 | |
---|
1827 | : |
---|
1828 | \family default |
---|
1829 | the identification of the user |
---|
1830 | \end_layout |
---|
1831 | |
---|
1832 | \begin_layout Itemize |
---|
1833 | |
---|
1834 | \family typewriter |
---|
1835 | pool |
---|
1836 | \begin_inset space ~ |
---|
1837 | \end_inset |
---|
1838 | |
---|
1839 | |
---|
1840 | \begin_inset space ~ |
---|
1841 | \end_inset |
---|
1842 | |
---|
1843 | |
---|
1844 | \begin_inset space ~ |
---|
1845 | \end_inset |
---|
1846 | |
---|
1847 | |
---|
1848 | \begin_inset space ~ |
---|
1849 | \end_inset |
---|
1850 | |
---|
1851 | |
---|
1852 | \begin_inset space ~ |
---|
1853 | \end_inset |
---|
1854 | |
---|
1855 | : |
---|
1856 | \family default |
---|
1857 | the name of the pool to be used |
---|
1858 | \end_layout |
---|
1859 | |
---|
1860 | \begin_layout Itemize |
---|
1861 | |
---|
1862 | \family typewriter |
---|
1863 | command |
---|
1864 | \begin_inset space ~ |
---|
1865 | \end_inset |
---|
1866 | |
---|
1867 | |
---|
1868 | \begin_inset space ~ |
---|
1869 | \end_inset |
---|
1870 | |
---|
1871 | : |
---|
1872 | \family default |
---|
1873 | the command for the server |
---|
1874 | \end_layout |
---|
1875 | |
---|
1876 | \begin_layout Itemize |
---|
1877 | |
---|
1878 | \family typewriter |
---|
1879 | multi |
---|
1880 | \begin_inset space ~ |
---|
1881 | \end_inset |
---|
1882 | |
---|
1883 | |
---|
1884 | \begin_inset space ~ |
---|
1885 | \end_inset |
---|
1886 | |
---|
1887 | |
---|
1888 | \begin_inset space ~ |
---|
1889 | \end_inset |
---|
1890 | |
---|
1891 | |
---|
1892 | \begin_inset space ~ |
---|
1893 | \end_inset |
---|
1894 | |
---|
1895 | : |
---|
1896 | \family default |
---|
1897 | the value of |
---|
1898 | \begin_inset Quotes eld |
---|
1899 | \end_inset |
---|
1900 | |
---|
1901 | multi |
---|
1902 | \begin_inset Quotes erd |
---|
1903 | \end_inset |
---|
1904 | |
---|
1905 | : can a line be produced more than once? |
---|
1906 | \end_layout |
---|
1907 | |
---|
1908 | \begin_layout Itemize |
---|
1909 | |
---|
1910 | \family typewriter |
---|
1911 | value |
---|
1912 | \begin_inset space ~ |
---|
1913 | \end_inset |
---|
1914 | |
---|
1915 | |
---|
1916 | \begin_inset space ~ |
---|
1917 | \end_inset |
---|
1918 | |
---|
1919 | |
---|
1920 | \begin_inset space ~ |
---|
1921 | \end_inset |
---|
1922 | |
---|
1923 | |
---|
1924 | \begin_inset space ~ |
---|
1925 | \end_inset |
---|
1926 | |
---|
1927 | : |
---|
1928 | \family default |
---|
1929 | a parameter |
---|
1930 | \end_layout |
---|
1931 | |
---|
1932 | \begin_layout Standard |
---|
1933 | All fields are coded in hexadecimal strings, embraced by a fixed header |
---|
1934 | and trailer. |
---|
1935 | This is to ensure that no problematic things (spaces, tabs, slashes, empty |
---|
1936 | strings etc.) have to be transmitted. |
---|
1937 | The fields are separated with the character |
---|
1938 | \begin_inset Quotes eld |
---|
1939 | \end_inset |
---|
1940 | |
---|
1941 | - |
---|
1942 | \begin_inset Quotes erd |
---|
1943 | \end_inset |
---|
1944 | |
---|
1945 | . |
---|
1946 | Example: to send a message to the server located at |
---|
1947 | \begin_inset Quotes eld |
---|
1948 | \end_inset |
---|
1949 | |
---|
1950 | http://www.stoposserver.surfsara.nl |
---|
1951 | \begin_inset Quotes erd |
---|
1952 | \end_inset |
---|
1953 | |
---|
1954 | with: |
---|
1955 | \end_layout |
---|
1956 | |
---|
1957 | \begin_layout Itemize |
---|
1958 | protocol = |
---|
1959 | \begin_inset Quotes eld |
---|
1960 | \end_inset |
---|
1961 | |
---|
1962 | gdbm |
---|
1963 | \begin_inset Quotes erd |
---|
1964 | \end_inset |
---|
1965 | |
---|
1966 | |
---|
1967 | \end_layout |
---|
1968 | |
---|
1969 | \begin_layout Itemize |
---|
1970 | user identification = |
---|
1971 | \begin_inset Quotes eld |
---|
1972 | \end_inset |
---|
1973 | |
---|
1974 | willem.qR7w3XQp |
---|
1975 | \begin_inset Quotes erd |
---|
1976 | \end_inset |
---|
1977 | |
---|
1978 | |
---|
1979 | \end_layout |
---|
1980 | |
---|
1981 | \begin_layout Itemize |
---|
1982 | poolname = |
---|
1983 | \begin_inset Quotes eld |
---|
1984 | \end_inset |
---|
1985 | |
---|
1986 | mypool |
---|
1987 | \begin_inset Quotes erd |
---|
1988 | \end_inset |
---|
1989 | |
---|
1990 | |
---|
1991 | \end_layout |
---|
1992 | |
---|
1993 | \begin_layout Itemize |
---|
1994 | command = |
---|
1995 | \begin_inset Quotes eld |
---|
1996 | \end_inset |
---|
1997 | |
---|
1998 | add |
---|
1999 | \begin_inset Quotes erd |
---|
2000 | \end_inset |
---|
2001 | |
---|
2002 | |
---|
2003 | \end_layout |
---|
2004 | |
---|
2005 | \begin_layout Itemize |
---|
2006 | multi = |
---|
2007 | \begin_inset Quotes eld |
---|
2008 | \end_inset |
---|
2009 | |
---|
2010 | no |
---|
2011 | \begin_inset Quotes erd |
---|
2012 | \end_inset |
---|
2013 | |
---|
2014 | |
---|
2015 | \end_layout |
---|
2016 | |
---|
2017 | \begin_layout Itemize |
---|
2018 | parameter = |
---|
2019 | \begin_inset Quotes eld |
---|
2020 | \end_inset |
---|
2021 | |
---|
2022 | 1 2 3 |
---|
2023 | \begin_inset Quotes erd |
---|
2024 | \end_inset |
---|
2025 | |
---|
2026 | |
---|
2027 | \end_layout |
---|
2028 | |
---|
2029 | \begin_layout Standard |
---|
2030 | The client would create the following url: |
---|
2031 | \begin_inset Newline newline |
---|
2032 | \end_inset |
---|
2033 | |
---|
2034 | |
---|
2035 | \begin_inset Newline newline |
---|
2036 | \end_inset |
---|
2037 | |
---|
2038 | |
---|
2039 | \family typewriter |
---|
2040 | http://www.stoposserver.surfsara.nl?ZZZ73746f706f73YY |
---|
2041 | \begin_inset space ~ |
---|
2042 | \end_inset |
---|
2043 | |
---|
2044 | |
---|
2045 | \begin_inset space ~ |
---|
2046 | \end_inset |
---|
2047 | |
---|
2048 | |
---|
2049 | \begin_inset space ~ |
---|
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---|
2051 | |
---|
2052 | |
---|
2053 | \begin_inset Quotes eld |
---|
2054 | \end_inset |
---|
2055 | |
---|
2056 | stopos |
---|
2057 | \begin_inset Quotes erd |
---|
2058 | \end_inset |
---|
2059 | |
---|
2060 | |
---|
2061 | \end_layout |
---|
2062 | |
---|
2063 | \begin_layout Standard |
---|
2064 | |
---|
2065 | \family typewriter |
---|
2066 | \begin_inset space ~ |
---|
2067 | \end_inset |
---|
2068 | |
---|
2069 | |
---|
2070 | \begin_inset space ~ |
---|
2071 | \end_inset |
---|
2072 | |
---|
2073 | |
---|
2074 | \begin_inset space ~ |
---|
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---|
2076 | |
---|
2077 | |
---|
2078 | \begin_inset space ~ |
---|
2079 | \end_inset |
---|
2080 | |
---|
2081 | |
---|
2082 | \begin_inset space ~ |
---|
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---|
2084 | |
---|
2085 | |
---|
2086 | \begin_inset space ~ |
---|
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---|
2088 | |
---|
2089 | |
---|
2090 | \begin_inset space ~ |
---|
2091 | \end_inset |
---|
2092 | |
---|
2093 | |
---|
2094 | \begin_inset space ~ |
---|
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---|
2096 | |
---|
2097 | |
---|
2098 | \begin_inset space ~ |
---|
2099 | \end_inset |
---|
2100 | |
---|
2101 | |
---|
2102 | \begin_inset space ~ |
---|
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---|
2104 | |
---|
2105 | |
---|
2106 | \begin_inset space ~ |
---|
2107 | \end_inset |
---|
2108 | |
---|
2109 | |
---|
2110 | \begin_inset space ~ |
---|
2111 | \end_inset |
---|
2112 | |
---|
2113 | |
---|
2114 | \begin_inset space ~ |
---|
2115 | \end_inset |
---|
2116 | |
---|
2117 | |
---|
2118 | \begin_inset space ~ |
---|
2119 | \end_inset |
---|
2120 | |
---|
2121 | |
---|
2122 | \begin_inset space ~ |
---|
2123 | \end_inset |
---|
2124 | |
---|
2125 | |
---|
2126 | \begin_inset space ~ |
---|
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---|
2128 | |
---|
2129 | |
---|
2130 | \begin_inset space ~ |
---|
2131 | \end_inset |
---|
2132 | |
---|
2133 | |
---|
2134 | \begin_inset space ~ |
---|
2135 | \end_inset |
---|
2136 | |
---|
2137 | |
---|
2138 | \begin_inset space ~ |
---|
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---|
2140 | |
---|
2141 | |
---|
2142 | \begin_inset space ~ |
---|
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---|
2144 | |
---|
2145 | |
---|
2146 | \begin_inset space ~ |
---|
2147 | \end_inset |
---|
2148 | |
---|
2149 | |
---|
2150 | \begin_inset space ~ |
---|
2151 | \end_inset |
---|
2152 | |
---|
2153 | |
---|
2154 | \begin_inset space ~ |
---|
2155 | \end_inset |
---|
2156 | |
---|
2157 | |
---|
2158 | \begin_inset space ~ |
---|
2159 | \end_inset |
---|
2160 | |
---|
2161 | |
---|
2162 | \begin_inset space ~ |
---|
2163 | \end_inset |
---|
2164 | |
---|
2165 | |
---|
2166 | \begin_inset space ~ |
---|
2167 | \end_inset |
---|
2168 | |
---|
2169 | |
---|
2170 | \begin_inset space ~ |
---|
2171 | \end_inset |
---|
2172 | |
---|
2173 | |
---|
2174 | \begin_inset space ~ |
---|
2175 | \end_inset |
---|
2176 | |
---|
2177 | |
---|
2178 | \begin_inset space ~ |
---|
2179 | \end_inset |
---|
2180 | |
---|
2181 | |
---|
2182 | \begin_inset space ~ |
---|
2183 | \end_inset |
---|
2184 | |
---|
2185 | |
---|
2186 | \begin_inset space ~ |
---|
2187 | \end_inset |
---|
2188 | |
---|
2189 | |
---|
2190 | \begin_inset space ~ |
---|
2191 | \end_inset |
---|
2192 | |
---|
2193 | |
---|
2194 | \begin_inset space ~ |
---|
2195 | \end_inset |
---|
2196 | |
---|
2197 | |
---|
2198 | \begin_inset space ~ |
---|
2199 | \end_inset |
---|
2200 | |
---|
2201 | |
---|
2202 | \begin_inset space ~ |
---|
2203 | \end_inset |
---|
2204 | |
---|
2205 | |
---|
2206 | \begin_inset space ~ |
---|
2207 | \end_inset |
---|
2208 | |
---|
2209 | -ZZZ6764626dYY |
---|
2210 | \begin_inset space ~ |
---|
2211 | \end_inset |
---|
2212 | |
---|
2213 | |
---|
2214 | \begin_inset space ~ |
---|
2215 | \end_inset |
---|
2216 | |
---|
2217 | |
---|
2218 | \begin_inset space ~ |
---|
2219 | \end_inset |
---|
2220 | |
---|
2221 | |
---|
2222 | \begin_inset space ~ |
---|
2223 | \end_inset |
---|
2224 | |
---|
2225 | |
---|
2226 | \begin_inset space ~ |
---|
2227 | \end_inset |
---|
2228 | |
---|
2229 | |
---|
2230 | \begin_inset Quotes eld |
---|
2231 | \end_inset |
---|
2232 | |
---|
2233 | gdbm |
---|
2234 | \begin_inset Quotes erd |
---|
2235 | \end_inset |
---|
2236 | |
---|
2237 | |
---|
2238 | \end_layout |
---|
2239 | |
---|
2240 | \begin_layout Standard |
---|
2241 | |
---|
2242 | \family typewriter |
---|
2243 | \begin_inset space ~ |
---|
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---|
2245 | |
---|
2246 | |
---|
2247 | \begin_inset space ~ |
---|
2248 | \end_inset |
---|
2249 | |
---|
2250 | |
---|
2251 | \begin_inset space ~ |
---|
2252 | \end_inset |
---|
2253 | |
---|
2254 | |
---|
2255 | \begin_inset space ~ |
---|
2256 | \end_inset |
---|
2257 | |
---|
2258 | |
---|
2259 | \begin_inset space ~ |
---|
2260 | \end_inset |
---|
2261 | |
---|
2262 | |
---|
2263 | \begin_inset space ~ |
---|
2264 | \end_inset |
---|
2265 | |
---|
2266 | |
---|
2267 | \begin_inset space ~ |
---|
2268 | \end_inset |
---|
2269 | |
---|
2270 | |
---|
2271 | \begin_inset space ~ |
---|
2272 | \end_inset |
---|
2273 | |
---|
2274 | |
---|
2275 | \begin_inset space ~ |
---|
2276 | \end_inset |
---|
2277 | |
---|
2278 | |
---|
2279 | \begin_inset space ~ |
---|
2280 | \end_inset |
---|
2281 | |
---|
2282 | |
---|
2283 | \begin_inset space ~ |
---|
2284 | \end_inset |
---|
2285 | |
---|
2286 | |
---|
2287 | \begin_inset space ~ |
---|
2288 | \end_inset |
---|
2289 | |
---|
2290 | |
---|
2291 | \begin_inset space ~ |
---|
2292 | \end_inset |
---|
2293 | |
---|
2294 | |
---|
2295 | \begin_inset space ~ |
---|
2296 | \end_inset |
---|
2297 | |
---|
2298 | -ZZZ77696c6c656d2e7152377733585170YY |
---|
2299 | \begin_inset space ~ |
---|
2300 | \end_inset |
---|
2301 | |
---|
2302 | |
---|
2303 | \begin_inset space ~ |
---|
2304 | \end_inset |
---|
2305 | |
---|
2306 | |
---|
2307 | \begin_inset space ~ |
---|
2308 | \end_inset |
---|
2309 | |
---|
2310 | |
---|
2311 | \begin_inset space ~ |
---|
2312 | \end_inset |
---|
2313 | |
---|
2314 | |
---|
2315 | \begin_inset space ~ |
---|
2316 | \end_inset |
---|
2317 | |
---|
2318 | |
---|
2319 | \begin_inset Quotes eld |
---|
2320 | \end_inset |
---|
2321 | |
---|
2322 | willem. |
---|
2323 | \family default |
---|
2324 | qR7w3XQp |
---|
2325 | \begin_inset Quotes erd |
---|
2326 | \end_inset |
---|
2327 | |
---|
2328 | |
---|
2329 | \end_layout |
---|
2330 | |
---|
2331 | \begin_layout Standard |
---|
2332 | |
---|
2333 | \family typewriter |
---|
2334 | \begin_inset space ~ |
---|
2335 | \end_inset |
---|
2336 | |
---|
2337 | |
---|
2338 | \begin_inset space ~ |
---|
2339 | \end_inset |
---|
2340 | |
---|
2341 | |
---|
2342 | \begin_inset space ~ |
---|
2343 | \end_inset |
---|
2344 | |
---|
2345 | |
---|
2346 | \begin_inset space ~ |
---|
2347 | \end_inset |
---|
2348 | |
---|
2349 | |
---|
2350 | \begin_inset space ~ |
---|
2351 | \end_inset |
---|
2352 | |
---|
2353 | |
---|
2354 | \begin_inset space ~ |
---|
2355 | \end_inset |
---|
2356 | |
---|
2357 | |
---|
2358 | \begin_inset space ~ |
---|
2359 | \end_inset |
---|
2360 | |
---|
2361 | |
---|
2362 | \begin_inset space ~ |
---|
2363 | \end_inset |
---|
2364 | |
---|
2365 | |
---|
2366 | \begin_inset space ~ |
---|
2367 | \end_inset |
---|
2368 | |
---|
2369 | |
---|
2370 | \begin_inset space ~ |
---|
2371 | \end_inset |
---|
2372 | |
---|
2373 | |
---|
2374 | \begin_inset space ~ |
---|
2375 | \end_inset |
---|
2376 | |
---|
2377 | |
---|
2378 | \begin_inset space ~ |
---|
2379 | \end_inset |
---|
2380 | |
---|
2381 | |
---|
2382 | \begin_inset space ~ |
---|
2383 | \end_inset |
---|
2384 | |
---|
2385 | |
---|
2386 | \begin_inset space ~ |
---|
2387 | \end_inset |
---|
2388 | |
---|
2389 | |
---|
2390 | \begin_inset space ~ |
---|
2391 | \end_inset |
---|
2392 | |
---|
2393 | |
---|
2394 | \begin_inset space ~ |
---|
2395 | \end_inset |
---|
2396 | |
---|
2397 | |
---|
2398 | \begin_inset space ~ |
---|
2399 | \end_inset |
---|
2400 | |
---|
2401 | |
---|
2402 | \begin_inset space ~ |
---|
2403 | \end_inset |
---|
2404 | |
---|
2405 | |
---|
2406 | \begin_inset space ~ |
---|
2407 | \end_inset |
---|
2408 | |
---|
2409 | |
---|
2410 | \begin_inset space ~ |
---|
2411 | \end_inset |
---|
2412 | |
---|
2413 | |
---|
2414 | \begin_inset space ~ |
---|
2415 | \end_inset |
---|
2416 | |
---|
2417 | |
---|
2418 | \begin_inset space ~ |
---|
2419 | \end_inset |
---|
2420 | |
---|
2421 | |
---|
2422 | \begin_inset space ~ |
---|
2423 | \end_inset |
---|
2424 | |
---|
2425 | |
---|
2426 | \begin_inset space ~ |
---|
2427 | \end_inset |
---|
2428 | |
---|
2429 | |
---|
2430 | \begin_inset space ~ |
---|
2431 | \end_inset |
---|
2432 | |
---|
2433 | |
---|
2434 | \begin_inset space ~ |
---|
2435 | \end_inset |
---|
2436 | |
---|
2437 | |
---|
2438 | \begin_inset space ~ |
---|
2439 | \end_inset |
---|
2440 | |
---|
2441 | |
---|
2442 | \begin_inset space ~ |
---|
2443 | \end_inset |
---|
2444 | |
---|
2445 | |
---|
2446 | \begin_inset space ~ |
---|
2447 | \end_inset |
---|
2448 | |
---|
2449 | |
---|
2450 | \begin_inset space ~ |
---|
2451 | \end_inset |
---|
2452 | |
---|
2453 | |
---|
2454 | \begin_inset space ~ |
---|
2455 | \end_inset |
---|
2456 | |
---|
2457 | |
---|
2458 | \begin_inset space ~ |
---|
2459 | \end_inset |
---|
2460 | |
---|
2461 | -ZZZ6d79706f6f6cYY |
---|
2462 | \begin_inset space ~ |
---|
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---|
2464 | |
---|
2465 | |
---|
2466 | \begin_inset space ~ |
---|
2467 | \end_inset |
---|
2468 | |
---|
2469 | |
---|
2470 | \begin_inset space ~ |
---|
2471 | \end_inset |
---|
2472 | |
---|
2473 | |
---|
2474 | \begin_inset space ~ |
---|
2475 | \end_inset |
---|
2476 | |
---|
2477 | |
---|
2478 | \begin_inset space ~ |
---|
2479 | \end_inset |
---|
2480 | |
---|
2481 | |
---|
2482 | \begin_inset Quotes eld |
---|
2483 | \end_inset |
---|
2484 | |
---|
2485 | mypool |
---|
2486 | \begin_inset Quotes erd |
---|
2487 | \end_inset |
---|
2488 | |
---|
2489 | |
---|
2490 | \end_layout |
---|
2491 | |
---|
2492 | \begin_layout Standard |
---|
2493 | |
---|
2494 | \family typewriter |
---|
2495 | \begin_inset space ~ |
---|
2496 | \end_inset |
---|
2497 | |
---|
2498 | |
---|
2499 | \begin_inset space ~ |
---|
2500 | \end_inset |
---|
2501 | |
---|
2502 | |
---|
2503 | \begin_inset space ~ |
---|
2504 | \end_inset |
---|
2505 | |
---|
2506 | |
---|
2507 | \begin_inset space ~ |
---|
2508 | \end_inset |
---|
2509 | |
---|
2510 | |
---|
2511 | \begin_inset space ~ |
---|
2512 | \end_inset |
---|
2513 | |
---|
2514 | |
---|
2515 | \begin_inset space ~ |
---|
2516 | \end_inset |
---|
2517 | |
---|
2518 | |
---|
2519 | \begin_inset space ~ |
---|
2520 | \end_inset |
---|
2521 | |
---|
2522 | |
---|
2523 | \begin_inset space ~ |
---|
2524 | \end_inset |
---|
2525 | |
---|
2526 | |
---|
2527 | \begin_inset space ~ |
---|
2528 | \end_inset |
---|
2529 | |
---|
2530 | |
---|
2531 | \begin_inset space ~ |
---|
2532 | \end_inset |
---|
2533 | |
---|
2534 | |
---|
2535 | \begin_inset space ~ |
---|
2536 | \end_inset |
---|
2537 | |
---|
2538 | |
---|
2539 | \begin_inset space ~ |
---|
2540 | \end_inset |
---|
2541 | |
---|
2542 | |
---|
2543 | \begin_inset space ~ |
---|
2544 | \end_inset |
---|
2545 | |
---|
2546 | |
---|
2547 | \begin_inset space ~ |
---|
2548 | \end_inset |
---|
2549 | |
---|
2550 | |
---|
2551 | \begin_inset space ~ |
---|
2552 | \end_inset |
---|
2553 | |
---|
2554 | |
---|
2555 | \begin_inset space ~ |
---|
2556 | \end_inset |
---|
2557 | |
---|
2558 | |
---|
2559 | \begin_inset space ~ |
---|
2560 | \end_inset |
---|
2561 | |
---|
2562 | |
---|
2563 | \begin_inset space ~ |
---|
2564 | \end_inset |
---|
2565 | |
---|
2566 | |
---|
2567 | \begin_inset space ~ |
---|
2568 | \end_inset |
---|
2569 | |
---|
2570 | |
---|
2571 | \begin_inset space ~ |
---|
2572 | \end_inset |
---|
2573 | |
---|
2574 | |
---|
2575 | \begin_inset space ~ |
---|
2576 | \end_inset |
---|
2577 | |
---|
2578 | |
---|
2579 | \begin_inset space ~ |
---|
2580 | \end_inset |
---|
2581 | |
---|
2582 | |
---|
2583 | \begin_inset space ~ |
---|
2584 | \end_inset |
---|
2585 | |
---|
2586 | |
---|
2587 | \begin_inset space ~ |
---|
2588 | \end_inset |
---|
2589 | |
---|
2590 | |
---|
2591 | \begin_inset space ~ |
---|
2592 | \end_inset |
---|
2593 | |
---|
2594 | |
---|
2595 | \begin_inset space ~ |
---|
2596 | \end_inset |
---|
2597 | |
---|
2598 | |
---|
2599 | \begin_inset space ~ |
---|
2600 | \end_inset |
---|
2601 | |
---|
2602 | |
---|
2603 | \begin_inset space ~ |
---|
2604 | \end_inset |
---|
2605 | |
---|
2606 | |
---|
2607 | \begin_inset space ~ |
---|
2608 | \end_inset |
---|
2609 | |
---|
2610 | |
---|
2611 | \begin_inset space ~ |
---|
2612 | \end_inset |
---|
2613 | |
---|
2614 | |
---|
2615 | \begin_inset space ~ |
---|
2616 | \end_inset |
---|
2617 | |
---|
2618 | |
---|
2619 | \begin_inset space ~ |
---|
2620 | \end_inset |
---|
2621 | |
---|
2622 | |
---|
2623 | \begin_inset space ~ |
---|
2624 | \end_inset |
---|
2625 | |
---|
2626 | |
---|
2627 | \begin_inset space ~ |
---|
2628 | \end_inset |
---|
2629 | |
---|
2630 | |
---|
2631 | \begin_inset space ~ |
---|
2632 | \end_inset |
---|
2633 | |
---|
2634 | |
---|
2635 | \begin_inset space ~ |
---|
2636 | \end_inset |
---|
2637 | |
---|
2638 | |
---|
2639 | \begin_inset space ~ |
---|
2640 | \end_inset |
---|
2641 | |
---|
2642 | |
---|
2643 | \begin_inset space ~ |
---|
2644 | \end_inset |
---|
2645 | |
---|
2646 | -ZZZ616464YY |
---|
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---|
2648 | \end_inset |
---|
2649 | |
---|
2650 | |
---|
2651 | \begin_inset space ~ |
---|
2652 | \end_inset |
---|
2653 | |
---|
2654 | |
---|
2655 | \begin_inset space ~ |
---|
2656 | \end_inset |
---|
2657 | |
---|
2658 | |
---|
2659 | \begin_inset space ~ |
---|
2660 | \end_inset |
---|
2661 | |
---|
2662 | |
---|
2663 | \begin_inset space ~ |
---|
2664 | \end_inset |
---|
2665 | |
---|
2666 | |
---|
2667 | \begin_inset Quotes eld |
---|
2668 | \end_inset |
---|
2669 | |
---|
2670 | add |
---|
2671 | \begin_inset Quotes erd |
---|
2672 | \end_inset |
---|
2673 | |
---|
2674 | |
---|
2675 | \end_layout |
---|
2676 | |
---|
2677 | \begin_layout Standard |
---|
2678 | |
---|
2679 | \family typewriter |
---|
2680 | \begin_inset space ~ |
---|
2681 | \end_inset |
---|
2682 | |
---|
2683 | |
---|
2684 | \begin_inset space ~ |
---|
2685 | \end_inset |
---|
2686 | |
---|
2687 | |
---|
2688 | \begin_inset space ~ |
---|
2689 | \end_inset |
---|
2690 | |
---|
2691 | |
---|
2692 | \begin_inset space ~ |
---|
2693 | \end_inset |
---|
2694 | |
---|
2695 | |
---|
2696 | \begin_inset space ~ |
---|
2697 | \end_inset |
---|
2698 | |
---|
2699 | |
---|
2700 | \begin_inset space ~ |
---|
2701 | \end_inset |
---|
2702 | |
---|
2703 | |
---|
2704 | \begin_inset space ~ |
---|
2705 | \end_inset |
---|
2706 | |
---|
2707 | |
---|
2708 | \begin_inset space ~ |
---|
2709 | \end_inset |
---|
2710 | |
---|
2711 | |
---|
2712 | \begin_inset space ~ |
---|
2713 | \end_inset |
---|
2714 | |
---|
2715 | |
---|
2716 | \begin_inset space ~ |
---|
2717 | \end_inset |
---|
2718 | |
---|
2719 | |
---|
2720 | \begin_inset space ~ |
---|
2721 | \end_inset |
---|
2722 | |
---|
2723 | |
---|
2724 | \begin_inset space ~ |
---|
2725 | \end_inset |
---|
2726 | |
---|
2727 | |
---|
2728 | \begin_inset space ~ |
---|
2729 | \end_inset |
---|
2730 | |
---|
2731 | |
---|
2732 | \begin_inset space ~ |
---|
2733 | \end_inset |
---|
2734 | |
---|
2735 | |
---|
2736 | \begin_inset space ~ |
---|
2737 | \end_inset |
---|
2738 | |
---|
2739 | |
---|
2740 | \begin_inset space ~ |
---|
2741 | \end_inset |
---|
2742 | |
---|
2743 | |
---|
2744 | \begin_inset space ~ |
---|
2745 | \end_inset |
---|
2746 | |
---|
2747 | |
---|
2748 | \begin_inset space ~ |
---|
2749 | \end_inset |
---|
2750 | |
---|
2751 | |
---|
2752 | \begin_inset space ~ |
---|
2753 | \end_inset |
---|
2754 | |
---|
2755 | |
---|
2756 | \begin_inset space ~ |
---|
2757 | \end_inset |
---|
2758 | |
---|
2759 | |
---|
2760 | \begin_inset space ~ |
---|
2761 | \end_inset |
---|
2762 | |
---|
2763 | |
---|
2764 | \begin_inset space ~ |
---|
2765 | \end_inset |
---|
2766 | |
---|
2767 | |
---|
2768 | \begin_inset space ~ |
---|
2769 | \end_inset |
---|
2770 | |
---|
2771 | |
---|
2772 | \begin_inset space ~ |
---|
2773 | \end_inset |
---|
2774 | |
---|
2775 | |
---|
2776 | \begin_inset space ~ |
---|
2777 | \end_inset |
---|
2778 | |
---|
2779 | |
---|
2780 | \begin_inset space ~ |
---|
2781 | \end_inset |
---|
2782 | |
---|
2783 | |
---|
2784 | \begin_inset space ~ |
---|
2785 | \end_inset |
---|
2786 | |
---|
2787 | |
---|
2788 | \begin_inset space ~ |
---|
2789 | \end_inset |
---|
2790 | |
---|
2791 | |
---|
2792 | \begin_inset space ~ |
---|
2793 | \end_inset |
---|
2794 | |
---|
2795 | |
---|
2796 | \begin_inset space ~ |
---|
2797 | \end_inset |
---|
2798 | |
---|
2799 | |
---|
2800 | \begin_inset space ~ |
---|
2801 | \end_inset |
---|
2802 | |
---|
2803 | |
---|
2804 | \begin_inset space ~ |
---|
2805 | \end_inset |
---|
2806 | |
---|
2807 | |
---|
2808 | \begin_inset space ~ |
---|
2809 | \end_inset |
---|
2810 | |
---|
2811 | |
---|
2812 | \begin_inset space ~ |
---|
2813 | \end_inset |
---|
2814 | |
---|
2815 | |
---|
2816 | \begin_inset space ~ |
---|
2817 | \end_inset |
---|
2818 | |
---|
2819 | |
---|
2820 | \begin_inset space ~ |
---|
2821 | \end_inset |
---|
2822 | |
---|
2823 | |
---|
2824 | \begin_inset space ~ |
---|
2825 | \end_inset |
---|
2826 | |
---|
2827 | |
---|
2828 | \begin_inset space ~ |
---|
2829 | \end_inset |
---|
2830 | |
---|
2831 | |
---|
2832 | \begin_inset space ~ |
---|
2833 | \end_inset |
---|
2834 | |
---|
2835 | |
---|
2836 | \begin_inset space ~ |
---|
2837 | \end_inset |
---|
2838 | |
---|
2839 | -ZZZ6e6fYY |
---|
2840 | \begin_inset space ~ |
---|
2841 | \end_inset |
---|
2842 | |
---|
2843 | |
---|
2844 | \begin_inset space ~ |
---|
2845 | \end_inset |
---|
2846 | |
---|
2847 | |
---|
2848 | \begin_inset space ~ |
---|
2849 | \end_inset |
---|
2850 | |
---|
2851 | |
---|
2852 | \begin_inset space ~ |
---|
2853 | \end_inset |
---|
2854 | |
---|
2855 | |
---|
2856 | \begin_inset space ~ |
---|
2857 | \end_inset |
---|
2858 | |
---|
2859 | |
---|
2860 | \begin_inset Quotes eld |
---|
2861 | \end_inset |
---|
2862 | |
---|
2863 | no |
---|
2864 | \begin_inset Quotes erd |
---|
2865 | \end_inset |
---|
2866 | |
---|
2867 | |
---|
2868 | \end_layout |
---|
2869 | |
---|
2870 | \begin_layout Standard |
---|
2871 | |
---|
2872 | \family typewriter |
---|
2873 | \begin_inset space ~ |
---|
2874 | \end_inset |
---|
2875 | |
---|
2876 | |
---|
2877 | \begin_inset space ~ |
---|
2878 | \end_inset |
---|
2879 | |
---|
2880 | |
---|
2881 | \begin_inset space ~ |
---|
2882 | \end_inset |
---|
2883 | |
---|
2884 | |
---|
2885 | \begin_inset space ~ |
---|
2886 | \end_inset |
---|
2887 | |
---|
2888 | |
---|
2889 | \begin_inset space ~ |
---|
2890 | \end_inset |
---|
2891 | |
---|
2892 | |
---|
2893 | \begin_inset space ~ |
---|
2894 | \end_inset |
---|
2895 | |
---|
2896 | |
---|
2897 | \begin_inset space ~ |
---|
2898 | \end_inset |
---|
2899 | |
---|
2900 | |
---|
2901 | \begin_inset space ~ |
---|
2902 | \end_inset |
---|
2903 | |
---|
2904 | |
---|
2905 | \begin_inset space ~ |
---|
2906 | \end_inset |
---|
2907 | |
---|
2908 | |
---|
2909 | \begin_inset space ~ |
---|
2910 | \end_inset |
---|
2911 | |
---|
2912 | |
---|
2913 | \begin_inset space ~ |
---|
2914 | \end_inset |
---|
2915 | |
---|
2916 | |
---|
2917 | \begin_inset space ~ |
---|
2918 | \end_inset |
---|
2919 | |
---|
2920 | |
---|
2921 | \begin_inset space ~ |
---|
2922 | \end_inset |
---|
2923 | |
---|
2924 | |
---|
2925 | \begin_inset space ~ |
---|
2926 | \end_inset |
---|
2927 | |
---|
2928 | |
---|
2929 | \begin_inset space ~ |
---|
2930 | \end_inset |
---|
2931 | |
---|
2932 | |
---|
2933 | \begin_inset space ~ |
---|
2934 | \end_inset |
---|
2935 | |
---|
2936 | |
---|
2937 | \begin_inset space ~ |
---|
2938 | \end_inset |
---|
2939 | |
---|
2940 | |
---|
2941 | \begin_inset space ~ |
---|
2942 | \end_inset |
---|
2943 | |
---|
2944 | |
---|
2945 | \begin_inset space ~ |
---|
2946 | \end_inset |
---|
2947 | |
---|
2948 | |
---|
2949 | \begin_inset space ~ |
---|
2950 | \end_inset |
---|
2951 | |
---|
2952 | |
---|
2953 | \begin_inset space ~ |
---|
2954 | \end_inset |
---|
2955 | |
---|
2956 | |
---|
2957 | \begin_inset space ~ |
---|
2958 | \end_inset |
---|
2959 | |
---|
2960 | |
---|
2961 | \begin_inset space ~ |
---|
2962 | \end_inset |
---|
2963 | |
---|
2964 | |
---|
2965 | \begin_inset space ~ |
---|
2966 | \end_inset |
---|
2967 | |
---|
2968 | |
---|
2969 | \begin_inset space ~ |
---|
2970 | \end_inset |
---|
2971 | |
---|
2972 | |
---|
2973 | \begin_inset space ~ |
---|
2974 | \end_inset |
---|
2975 | |
---|
2976 | |
---|
2977 | \begin_inset space ~ |
---|
2978 | \end_inset |
---|
2979 | |
---|
2980 | |
---|
2981 | \begin_inset space ~ |
---|
2982 | \end_inset |
---|
2983 | |
---|
2984 | |
---|
2985 | \begin_inset space ~ |
---|
2986 | \end_inset |
---|
2987 | |
---|
2988 | |
---|
2989 | \begin_inset space ~ |
---|
2990 | \end_inset |
---|
2991 | |
---|
2992 | |
---|
2993 | \begin_inset space ~ |
---|
2994 | \end_inset |
---|
2995 | |
---|
2996 | |
---|
2997 | \begin_inset space ~ |
---|
2998 | \end_inset |
---|
2999 | |
---|
3000 | |
---|
3001 | \begin_inset space ~ |
---|
3002 | \end_inset |
---|
3003 | |
---|
3004 | |
---|
3005 | \begin_inset space ~ |
---|
3006 | \end_inset |
---|
3007 | |
---|
3008 | -ZZZ3120322033YY |
---|
3009 | \begin_inset space ~ |
---|
3010 | \end_inset |
---|
3011 | |
---|
3012 | |
---|
3013 | \begin_inset space ~ |
---|
3014 | \end_inset |
---|
3015 | |
---|
3016 | |
---|
3017 | \begin_inset space ~ |
---|
3018 | \end_inset |
---|
3019 | |
---|
3020 | |
---|
3021 | \begin_inset space ~ |
---|
3022 | \end_inset |
---|
3023 | |
---|
3024 | |
---|
3025 | \begin_inset space ~ |
---|
3026 | \end_inset |
---|
3027 | |
---|
3028 | |
---|
3029 | \begin_inset Quotes eld |
---|
3030 | \end_inset |
---|
3031 | |
---|
3032 | 1 2 3 |
---|
3033 | \begin_inset Quotes erd |
---|
3034 | \end_inset |
---|
3035 | |
---|
3036 | |
---|
3037 | \begin_inset Newline newline |
---|
3038 | \end_inset |
---|
3039 | |
---|
3040 | |
---|
3041 | \end_layout |
---|
3042 | |
---|
3043 | \begin_layout Standard |
---|
3044 | The header is |
---|
3045 | \begin_inset Quotes eld |
---|
3046 | \end_inset |
---|
3047 | |
---|
3048 | ZZZ |
---|
3049 | \begin_inset Quotes erd |
---|
3050 | \end_inset |
---|
3051 | |
---|
3052 | , the trailer is |
---|
3053 | \begin_inset Quotes eld |
---|
3054 | \end_inset |
---|
3055 | |
---|
3056 | YY |
---|
3057 | \begin_inset Quotes erd |
---|
3058 | \end_inset |
---|
3059 | |
---|
3060 | . |
---|
3061 | \begin_inset Newline newline |
---|
3062 | \end_inset |
---|
3063 | |
---|
3064 | |
---|
3065 | \begin_inset Newline newline |
---|
3066 | \end_inset |
---|
3067 | |
---|
3068 | |
---|
3069 | \end_layout |
---|
3070 | |
---|
3071 | \begin_layout Subsubsection* |
---|
3072 | Tasks for the server |
---|
3073 | \end_layout |
---|
3074 | |
---|
3075 | \begin_layout Standard |
---|
3076 | The server parses the message from the client, executes the command and |
---|
3077 | sends the results back. |
---|
3078 | The commands the the server recognizes are: |
---|
3079 | \end_layout |
---|
3080 | |
---|
3081 | \begin_layout Itemize |
---|
3082 | |
---|
3083 | \family typewriter |
---|
3084 | create |
---|
3085 | \begin_inset space ~ |
---|
3086 | \end_inset |
---|
3087 | |
---|
3088 | |
---|
3089 | \begin_inset space ~ |
---|
3090 | \end_inset |
---|
3091 | |
---|
3092 | |
---|
3093 | \begin_inset space ~ |
---|
3094 | \end_inset |
---|
3095 | |
---|
3096 | : |
---|
3097 | \family default |
---|
3098 | create a pool |
---|
3099 | \end_layout |
---|
3100 | |
---|
3101 | \begin_layout Itemize |
---|
3102 | |
---|
3103 | \family typewriter |
---|
3104 | status |
---|
3105 | \begin_inset space ~ |
---|
3106 | \end_inset |
---|
3107 | |
---|
3108 | |
---|
3109 | \begin_inset space ~ |
---|
3110 | \end_inset |
---|
3111 | |
---|
3112 | |
---|
3113 | \begin_inset space ~ |
---|
3114 | \end_inset |
---|
3115 | |
---|
3116 | : |
---|
3117 | \family default |
---|
3118 | send the status of the pool |
---|
3119 | \end_layout |
---|
3120 | |
---|
3121 | \begin_layout Itemize |
---|
3122 | |
---|
3123 | \family typewriter |
---|
3124 | purge |
---|
3125 | \begin_inset space ~ |
---|
3126 | \end_inset |
---|
3127 | |
---|
3128 | |
---|
3129 | \begin_inset space ~ |
---|
3130 | \end_inset |
---|
3131 | |
---|
3132 | |
---|
3133 | \begin_inset space ~ |
---|
3134 | \end_inset |
---|
3135 | |
---|
3136 | |
---|
3137 | \begin_inset space ~ |
---|
3138 | \end_inset |
---|
3139 | |
---|
3140 | : |
---|
3141 | \family default |
---|
3142 | remove the pool |
---|
3143 | \end_layout |
---|
3144 | |
---|
3145 | \begin_layout Itemize |
---|
3146 | |
---|
3147 | \family typewriter |
---|
3148 | add |
---|
3149 | \begin_inset space ~ |
---|
3150 | \end_inset |
---|
3151 | |
---|
3152 | |
---|
3153 | \begin_inset space ~ |
---|
3154 | \end_inset |
---|
3155 | |
---|
3156 | |
---|
3157 | \begin_inset space ~ |
---|
3158 | \end_inset |
---|
3159 | |
---|
3160 | |
---|
3161 | \begin_inset space ~ |
---|
3162 | \end_inset |
---|
3163 | |
---|
3164 | |
---|
3165 | \begin_inset space ~ |
---|
3166 | \end_inset |
---|
3167 | |
---|
3168 | |
---|
3169 | \begin_inset space ~ |
---|
3170 | \end_inset |
---|
3171 | |
---|
3172 | : |
---|
3173 | \family default |
---|
3174 | add a line, taken from the |
---|
3175 | \begin_inset Quotes eld |
---|
3176 | \end_inset |
---|
3177 | |
---|
3178 | value |
---|
3179 | \begin_inset Quotes erd |
---|
3180 | \end_inset |
---|
3181 | |
---|
3182 | field of the message |
---|
3183 | \end_layout |
---|
3184 | |
---|
3185 | \begin_layout Itemize |
---|
3186 | |
---|
3187 | \family typewriter |
---|
3188 | next |
---|
3189 | \begin_inset space ~ |
---|
3190 | \end_inset |
---|
3191 | |
---|
3192 | |
---|
3193 | \begin_inset space ~ |
---|
3194 | \end_inset |
---|
3195 | |
---|
3196 | |
---|
3197 | \begin_inset space ~ |
---|
3198 | \end_inset |
---|
3199 | |
---|
3200 | |
---|
3201 | \begin_inset space ~ |
---|
3202 | \end_inset |
---|
3203 | |
---|
3204 | |
---|
3205 | \begin_inset space ~ |
---|
3206 | \end_inset |
---|
3207 | |
---|
3208 | : |
---|
3209 | \family default |
---|
3210 | send the next line together with the |
---|
3211 | \begin_inset Quotes eld |
---|
3212 | \end_inset |
---|
3213 | |
---|
3214 | key |
---|
3215 | \begin_inset Quotes erd |
---|
3216 | \end_inset |
---|
3217 | |
---|
3218 | and |
---|
3219 | \begin_inset Quotes eld |
---|
3220 | \end_inset |
---|
3221 | |
---|
3222 | committed |
---|
3223 | \begin_inset Quotes erd |
---|
3224 | \end_inset |
---|
3225 | |
---|
3226 | . |
---|
3227 | Take care of |
---|
3228 | \begin_inset Quotes eld |
---|
3229 | \end_inset |
---|
3230 | |
---|
3231 | multi |
---|
3232 | \begin_inset Quotes erd |
---|
3233 | \end_inset |
---|
3234 | |
---|
3235 | |
---|
3236 | \end_layout |
---|
3237 | |
---|
3238 | \begin_layout Itemize |
---|
3239 | |
---|
3240 | \family typewriter |
---|
3241 | remove |
---|
3242 | \begin_inset space ~ |
---|
3243 | \end_inset |
---|
3244 | |
---|
3245 | |
---|
3246 | \begin_inset space ~ |
---|
3247 | \end_inset |
---|
3248 | |
---|
3249 | |
---|
3250 | \begin_inset space ~ |
---|
3251 | \end_inset |
---|
3252 | |
---|
3253 | : |
---|
3254 | \family default |
---|
3255 | remove a line with key given in the |
---|
3256 | \begin_inset Quotes eld |
---|
3257 | \end_inset |
---|
3258 | |
---|
3259 | value |
---|
3260 | \begin_inset Quotes erd |
---|
3261 | \end_inset |
---|
3262 | |
---|
3263 | field |
---|
3264 | \end_layout |
---|
3265 | |
---|
3266 | \begin_layout Itemize |
---|
3267 | |
---|
3268 | \family typewriter |
---|
3269 | dump |
---|
3270 | \begin_inset space ~ |
---|
3271 | \end_inset |
---|
3272 | |
---|
3273 | |
---|
3274 | \begin_inset space ~ |
---|
3275 | \end_inset |
---|
3276 | |
---|
3277 | |
---|
3278 | \begin_inset space ~ |
---|
3279 | \end_inset |
---|
3280 | |
---|
3281 | |
---|
3282 | \begin_inset space ~ |
---|
3283 | \end_inset |
---|
3284 | |
---|
3285 | |
---|
3286 | \begin_inset space ~ |
---|
3287 | \end_inset |
---|
3288 | |
---|
3289 | : |
---|
3290 | \family default |
---|
3291 | return next line to be dumped, together with |
---|
3292 | \begin_inset Quotes eld |
---|
3293 | \end_inset |
---|
3294 | |
---|
3295 | key |
---|
3296 | \begin_inset Quotes erd |
---|
3297 | \end_inset |
---|
3298 | |
---|
3299 | and |
---|
3300 | \begin_inset Quotes eld |
---|
3301 | \end_inset |
---|
3302 | |
---|
3303 | committed |
---|
3304 | \begin_inset Quotes erd |
---|
3305 | \end_inset |
---|
3306 | |
---|
3307 | |
---|
3308 | \end_layout |
---|
3309 | |
---|
3310 | \begin_layout Itemize |
---|
3311 | |
---|
3312 | \family typewriter |
---|
3313 | pools |
---|
3314 | \begin_inset space ~ |
---|
3315 | \end_inset |
---|
3316 | |
---|
3317 | |
---|
3318 | \begin_inset space ~ |
---|
3319 | \end_inset |
---|
3320 | |
---|
3321 | |
---|
3322 | \begin_inset space ~ |
---|
3323 | \end_inset |
---|
3324 | |
---|
3325 | |
---|
3326 | \begin_inset space ~ |
---|
3327 | \end_inset |
---|
3328 | |
---|
3329 | : |
---|
3330 | \family default |
---|
3331 | return the names of the available pools for the user |
---|
3332 | \end_layout |
---|
3333 | |
---|
3334 | \begin_layout Standard |
---|
3335 | Not accidentally: these commands have the same names as the commands for |
---|
3336 | the client, but the context is different. |
---|
3337 | \end_layout |
---|
3338 | |
---|
3339 | \begin_layout Subsubsection* |
---|
3340 | Communication from server to client |
---|
3341 | \end_layout |
---|
3342 | |
---|
3343 | \begin_layout Standard |
---|
3344 | The server parses the message from the client and sends the result back, |
---|
3345 | using |
---|
3346 | \begin_inset Quotes eld |
---|
3347 | \end_inset |
---|
3348 | |
---|
3349 | Content-type: text/plain |
---|
3350 | \begin_inset Quotes erd |
---|
3351 | \end_inset |
---|
3352 | |
---|
3353 | . |
---|
3354 | The server puts the following string in the output: |
---|
3355 | \begin_inset Newline newline |
---|
3356 | \end_inset |
---|
3357 | |
---|
3358 | |
---|
3359 | \begin_inset Newline newline |
---|
3360 | \end_inset |
---|
3361 | |
---|
3362 | |
---|
3363 | \family typewriter |
---|
3364 | STOPOS: |
---|
3365 | \family default |
---|
3366 | |
---|
3367 | \begin_inset Newline newline |
---|
3368 | \end_inset |
---|
3369 | |
---|
3370 | |
---|
3371 | \begin_inset Newline newline |
---|
3372 | \end_inset |
---|
3373 | |
---|
3374 | This string is immediately followed by the desired output, which consists |
---|
3375 | of the following fields: |
---|
3376 | \end_layout |
---|
3377 | |
---|
3378 | \begin_layout Itemize |
---|
3379 | |
---|
3380 | \family typewriter |
---|
3381 | return message |
---|
3382 | \begin_inset space ~ |
---|
3383 | \end_inset |
---|
3384 | |
---|
3385 | : |
---|
3386 | \family default |
---|
3387 | |
---|
3388 | \begin_inset Quotes eld |
---|
3389 | \end_inset |
---|
3390 | |
---|
3391 | OK |
---|
3392 | \begin_inset Quotes erd |
---|
3393 | \end_inset |
---|
3394 | |
---|
3395 | or some error message |
---|
3396 | \end_layout |
---|
3397 | |
---|
3398 | \begin_layout Itemize |
---|
3399 | |
---|
3400 | \family typewriter |
---|
3401 | key |
---|
3402 | \begin_inset space ~ |
---|
3403 | \end_inset |
---|
3404 | |
---|
3405 | |
---|
3406 | \begin_inset space ~ |
---|
3407 | \end_inset |
---|
3408 | |
---|
3409 | |
---|
3410 | \begin_inset space ~ |
---|
3411 | \end_inset |
---|
3412 | |
---|
3413 | |
---|
3414 | \begin_inset space ~ |
---|
3415 | \end_inset |
---|
3416 | |
---|
3417 | |
---|
3418 | \begin_inset space ~ |
---|
3419 | \end_inset |
---|
3420 | |
---|
3421 | |
---|
3422 | \begin_inset space ~ |
---|
3423 | \end_inset |
---|
3424 | |
---|
3425 | |
---|
3426 | \begin_inset space ~ |
---|
3427 | \end_inset |
---|
3428 | |
---|
3429 | |
---|
3430 | \begin_inset space ~ |
---|
3431 | \end_inset |
---|
3432 | |
---|
3433 | |
---|
3434 | \begin_inset space ~ |
---|
3435 | \end_inset |
---|
3436 | |
---|
3437 | |
---|
3438 | \begin_inset space ~ |
---|
3439 | \end_inset |
---|
3440 | |
---|
3441 | |
---|
3442 | \begin_inset space ~ |
---|
3443 | \end_inset |
---|
3444 | |
---|
3445 | |
---|
3446 | \begin_inset space ~ |
---|
3447 | \end_inset |
---|
3448 | |
---|
3449 | : |
---|
3450 | \family default |
---|
3451 | key of the record just retrieved or empty |
---|
3452 | \end_layout |
---|
3453 | |
---|
3454 | \begin_layout Itemize |
---|
3455 | |
---|
3456 | \family typewriter |
---|
3457 | committed |
---|
3458 | \begin_inset space ~ |
---|
3459 | \end_inset |
---|
3460 | |
---|
3461 | |
---|
3462 | \begin_inset space ~ |
---|
3463 | \end_inset |
---|
3464 | |
---|
3465 | |
---|
3466 | \begin_inset space ~ |
---|
3467 | \end_inset |
---|
3468 | |
---|
3469 | |
---|
3470 | \begin_inset space ~ |
---|
3471 | \end_inset |
---|
3472 | |
---|
3473 | |
---|
3474 | \begin_inset space ~ |
---|
3475 | \end_inset |
---|
3476 | |
---|
3477 | |
---|
3478 | \begin_inset space ~ |
---|
3479 | \end_inset |
---|
3480 | |
---|
3481 | : |
---|
3482 | \family default |
---|
3483 | number of times the record has been committed or empty |
---|
3484 | \end_layout |
---|
3485 | |
---|
3486 | \begin_layout Itemize |
---|
3487 | |
---|
3488 | \family typewriter |
---|
3489 | count |
---|
3490 | \begin_inset space ~ |
---|
3491 | \end_inset |
---|
3492 | |
---|
3493 | |
---|
3494 | \begin_inset space ~ |
---|
3495 | \end_inset |
---|
3496 | |
---|
3497 | |
---|
3498 | \begin_inset space ~ |
---|
3499 | \end_inset |
---|
3500 | |
---|
3501 | |
---|
3502 | \begin_inset space ~ |
---|
3503 | \end_inset |
---|
3504 | |
---|
3505 | |
---|
3506 | \begin_inset space ~ |
---|
3507 | \end_inset |
---|
3508 | |
---|
3509 | |
---|
3510 | \begin_inset space ~ |
---|
3511 | \end_inset |
---|
3512 | |
---|
3513 | |
---|
3514 | \begin_inset space ~ |
---|
3515 | \end_inset |
---|
3516 | |
---|
3517 | |
---|
3518 | \begin_inset space ~ |
---|
3519 | \end_inset |
---|
3520 | |
---|
3521 | |
---|
3522 | \begin_inset space ~ |
---|
3523 | \end_inset |
---|
3524 | |
---|
3525 | |
---|
3526 | \begin_inset space ~ |
---|
3527 | \end_inset |
---|
3528 | |
---|
3529 | : |
---|
3530 | \family default |
---|
3531 | number of records added so far or empty |
---|
3532 | \end_layout |
---|
3533 | |
---|
3534 | \begin_layout Itemize |
---|
3535 | |
---|
3536 | \family typewriter |
---|
3537 | present |
---|
3538 | \begin_inset space ~ |
---|
3539 | \end_inset |
---|
3540 | |
---|
3541 | |
---|
3542 | \begin_inset space ~ |
---|
3543 | \end_inset |
---|
3544 | |
---|
3545 | |
---|
3546 | \begin_inset space ~ |
---|
3547 | \end_inset |
---|
3548 | |
---|
3549 | |
---|
3550 | \begin_inset space ~ |
---|
3551 | \end_inset |
---|
3552 | |
---|
3553 | |
---|
3554 | \begin_inset space ~ |
---|
3555 | \end_inset |
---|
3556 | |
---|
3557 | |
---|
3558 | \begin_inset space ~ |
---|
3559 | \end_inset |
---|
3560 | |
---|
3561 | |
---|
3562 | \begin_inset space ~ |
---|
3563 | \end_inset |
---|
3564 | |
---|
3565 | |
---|
3566 | \begin_inset space ~ |
---|
3567 | \end_inset |
---|
3568 | |
---|
3569 | : |
---|
3570 | \family default |
---|
3571 | number of records present or empty |
---|
3572 | \end_layout |
---|
3573 | |
---|
3574 | \begin_layout Itemize |
---|
3575 | |
---|
3576 | \family typewriter |
---|
3577 | present0 |
---|
3578 | \begin_inset space ~ |
---|
3579 | \end_inset |
---|
3580 | |
---|
3581 | |
---|
3582 | \begin_inset space ~ |
---|
3583 | \end_inset |
---|
3584 | |
---|
3585 | |
---|
3586 | \begin_inset space ~ |
---|
3587 | \end_inset |
---|
3588 | |
---|
3589 | |
---|
3590 | \begin_inset space ~ |
---|
3591 | \end_inset |
---|
3592 | |
---|
3593 | |
---|
3594 | \begin_inset space ~ |
---|
3595 | \end_inset |
---|
3596 | |
---|
3597 | |
---|
3598 | \begin_inset space ~ |
---|
3599 | \end_inset |
---|
3600 | |
---|
3601 | |
---|
3602 | \begin_inset space ~ |
---|
3603 | \end_inset |
---|
3604 | |
---|
3605 | : |
---|
3606 | \family default |
---|
3607 | number of records never been committed or empty |
---|
3608 | \end_layout |
---|
3609 | |
---|
3610 | \begin_layout Itemize |
---|
3611 | |
---|
3612 | \family typewriter |
---|
3613 | value |
---|
3614 | \begin_inset space ~ |
---|
3615 | \end_inset |
---|
3616 | |
---|
3617 | |
---|
3618 | \begin_inset space ~ |
---|
3619 | \end_inset |
---|
3620 | |
---|
3621 | |
---|
3622 | \begin_inset space ~ |
---|
3623 | \end_inset |
---|
3624 | |
---|
3625 | |
---|
3626 | \begin_inset space ~ |
---|
3627 | \end_inset |
---|
3628 | |
---|
3629 | |
---|
3630 | \begin_inset space ~ |
---|
3631 | \end_inset |
---|
3632 | |
---|
3633 | |
---|
3634 | \begin_inset space ~ |
---|
3635 | \end_inset |
---|
3636 | |
---|
3637 | |
---|
3638 | \begin_inset space ~ |
---|
3639 | \end_inset |
---|
3640 | |
---|
3641 | |
---|
3642 | \begin_inset space ~ |
---|
3643 | \end_inset |
---|
3644 | |
---|
3645 | |
---|
3646 | \begin_inset space ~ |
---|
3647 | \end_inset |
---|
3648 | |
---|
3649 | |
---|
3650 | \begin_inset space ~ |
---|
3651 | \end_inset |
---|
3652 | |
---|
3653 | : |
---|
3654 | \family default |
---|
3655 | return value or empty |
---|
3656 | \end_layout |
---|
3657 | |
---|
3658 | \begin_layout Itemize |
---|
3659 | |
---|
3660 | \family typewriter |
---|
3661 | new line character |
---|
3662 | \end_layout |
---|
3663 | |
---|
3664 | \begin_layout Standard |
---|
3665 | The client will search for the string |
---|
3666 | \begin_inset Quotes eld |
---|
3667 | \end_inset |
---|
3668 | |
---|
3669 | STOPOS: |
---|
3670 | \begin_inset Quotes erd |
---|
3671 | \end_inset |
---|
3672 | |
---|
3673 | and use the string immediately following as the result. |
---|
3674 | The developer can, if she wishes, print extra information and have a look |
---|
3675 | at the total output of the server, as long as she does not use the string |
---|
3676 | |
---|
3677 | \begin_inset Quotes eld |
---|
3678 | \end_inset |
---|
3679 | |
---|
3680 | STOPOS: |
---|
3681 | \begin_inset Quotes erd |
---|
3682 | \end_inset |
---|
3683 | |
---|
3684 | . |
---|
3685 | The fields are encoded, just like is done with the message from the client |
---|
3686 | to the server, only the separator here is |
---|
3687 | \begin_inset Quotes eld |
---|
3688 | \end_inset |
---|
3689 | |
---|
3690 | + |
---|
3691 | \begin_inset Quotes erd |
---|
3692 | \end_inset |
---|
3693 | |
---|
3694 | for no special reason. |
---|
3695 | |
---|
3696 | \end_layout |
---|
3697 | |
---|
3698 | \begin_layout Subsection* |
---|
3699 | Internals of the client |
---|
3700 | \end_layout |
---|
3701 | |
---|
3702 | \begin_layout Standard |
---|
3703 | The client parses the command line, using getopt(3). |
---|
3704 | It performs some basic checks on the parameters given, and sends an appropriate |
---|
3705 | command to the server, using libcurl(3). |
---|
3706 | The output from the server is parsed and transformed into statements that |
---|
3707 | can be executed in the shell. |
---|
3708 | These commands set environment variables, with names starting with |
---|
3709 | \begin_inset Quotes eld |
---|
3710 | \end_inset |
---|
3711 | |
---|
3712 | STOPOS_ |
---|
3713 | \begin_inset Quotes erd |
---|
3714 | \end_inset |
---|
3715 | |
---|
3716 | . |
---|
3717 | \end_layout |
---|
3718 | |
---|
3719 | \begin_layout Subsection* |
---|
3720 | Internals of the server |
---|
3721 | \end_layout |
---|
3722 | |
---|
3723 | \begin_layout Standard |
---|
3724 | The server parses the command sent from the client and an http-server (apache, |
---|
3725 | thttpd), executes it and sends the results back to the client. |
---|
3726 | Most of the interesting work is done in the class |
---|
3727 | \begin_inset Quotes eld |
---|
3728 | \end_inset |
---|
3729 | |
---|
3730 | stopos_pool |
---|
3731 | \begin_inset Quotes erd |
---|
3732 | \end_inset |
---|
3733 | |
---|
3734 | . |
---|
3735 | This class, from which a database-specific class has to be derived, maintains |
---|
3736 | a double linked list of lines. |
---|
3737 | The addressing of the lines is based on keys that are computed from the |
---|
3738 | counter that is incremented each time a line is added. |
---|
3739 | The derived class has to deal with some basic I/O operations: creating, |
---|
3740 | opening, closing and removing of the database; reading, writing and removing |
---|
3741 | records. |
---|
3742 | In this code, four database implementations are provided: |
---|
3743 | \end_layout |
---|
3744 | |
---|
3745 | \begin_layout Itemize |
---|
3746 | based on gdbm |
---|
3747 | \begin_inset Foot |
---|
3748 | status open |
---|
3749 | |
---|
3750 | \begin_layout Plain Layout |
---|
3751 | http://www.gnu.org.ua/software/gdbm/ |
---|
3752 | \end_layout |
---|
3753 | |
---|
3754 | \end_inset |
---|
3755 | |
---|
3756 | |
---|
3757 | \end_layout |
---|
3758 | |
---|
3759 | \begin_layout Itemize |
---|
3760 | based om mysql |
---|
3761 | \begin_inset Foot |
---|
3762 | status open |
---|
3763 | |
---|
3764 | \begin_layout Plain Layout |
---|
3765 | http://www.mysql.com/ |
---|
3766 | \end_layout |
---|
3767 | |
---|
3768 | \end_inset |
---|
3769 | |
---|
3770 | |
---|
3771 | \end_layout |
---|
3772 | |
---|
3773 | \begin_layout Itemize |
---|
3774 | based on a flat ascii file |
---|
3775 | \end_layout |
---|
3776 | |
---|
3777 | \begin_layout Itemize |
---|
3778 | based on files in a folder, each file containing one line |
---|
3779 | \end_layout |
---|
3780 | |
---|
3781 | \begin_layout Standard |
---|
3782 | The client determines which implementation the server has to use. |
---|
3783 | Storage of a record is based on the key, but, if desirable, the derived |
---|
3784 | class can provide a suitable slot for storing the record. |
---|
3785 | This feature is used in the |
---|
3786 | \begin_inset Quotes eld |
---|
3787 | \end_inset |
---|
3788 | |
---|
3789 | flat file |
---|
3790 | \begin_inset Quotes erd |
---|
3791 | \end_inset |
---|
3792 | |
---|
3793 | solution, in order to be able to re-use space occupied by removed records. |
---|
3794 | |
---|
3795 | \end_layout |
---|
3796 | |
---|
3797 | \begin_layout Subsubsection* |
---|
3798 | Storage of lines |
---|
3799 | \end_layout |
---|
3800 | |
---|
3801 | \begin_layout Standard |
---|
3802 | Lines are stored in records, which also contain extra fields. |
---|
3803 | The records are hexadecimal coded, just like the communication from client |
---|
3804 | to server. |
---|
3805 | The separation character is here '/'. |
---|
3806 | Records are stored using unique keys, generated by the class |
---|
3807 | \begin_inset Quotes eld |
---|
3808 | \end_inset |
---|
3809 | |
---|
3810 | stopos_pool |
---|
3811 | \begin_inset Quotes erd |
---|
3812 | \end_inset |
---|
3813 | |
---|
3814 | . |
---|
3815 | The derived class has no knowledge about the meaning of the records: it's |
---|
3816 | only task is to store, retrieve and delete them. |
---|
3817 | \end_layout |
---|
3818 | |
---|
3819 | \begin_layout Subsection* |
---|
3820 | Performance |
---|
3821 | \end_layout |
---|
3822 | |
---|
3823 | \begin_layout Standard |
---|
3824 | A program |
---|
3825 | \begin_inset Quotes eld |
---|
3826 | \end_inset |
---|
3827 | |
---|
3828 | test_pool.cpp |
---|
3829 | \begin_inset Quotes erd |
---|
3830 | \end_inset |
---|
3831 | |
---|
3832 | has been provided which runs all four implementations, without an http |
---|
3833 | server, but directly calling the functions from the class |
---|
3834 | \begin_inset Quotes eld |
---|
3835 | \end_inset |
---|
3836 | |
---|
3837 | stopos_pool |
---|
3838 | \begin_inset Quotes erd |
---|
3839 | \end_inset |
---|
3840 | |
---|
3841 | and reports how much time a implementation takes. |
---|
3842 | Furthermore, it does some consistency checks. |
---|
3843 | The pool consists of a few hundreds of lines. |
---|
3844 | The results are |
---|
3845 | \begin_inset Foot |
---|
3846 | status open |
---|
3847 | |
---|
3848 | \begin_layout Plain Layout |
---|
3849 | The program was run on a Linux workstation, equipped with a |
---|
3850 | \begin_inset Quotes eld |
---|
3851 | \end_inset |
---|
3852 | |
---|
3853 | normal |
---|
3854 | \begin_inset Quotes erd |
---|
3855 | \end_inset |
---|
3856 | |
---|
3857 | (no SSD) disk |
---|
3858 | \end_layout |
---|
3859 | |
---|
3860 | \end_inset |
---|
3861 | |
---|
3862 | : |
---|
3863 | \begin_inset Newline newline |
---|
3864 | \end_inset |
---|
3865 | |
---|
3866 | |
---|
3867 | \begin_inset Newline newline |
---|
3868 | \end_inset |
---|
3869 | |
---|
3870 | |
---|
3871 | \family typewriter |
---|
3872 | database |
---|
3873 | \begin_inset space ~ |
---|
3874 | \end_inset |
---|
3875 | |
---|
3876 | |
---|
3877 | \begin_inset space ~ |
---|
3878 | \end_inset |
---|
3879 | |
---|
3880 | |
---|
3881 | \begin_inset space ~ |
---|
3882 | \end_inset |
---|
3883 | |
---|
3884 | time (sec) |
---|
3885 | \begin_inset Newline newline |
---|
3886 | \end_inset |
---|
3887 | |
---|
3888 | gdbm |
---|
3889 | \begin_inset space ~ |
---|
3890 | \end_inset |
---|
3891 | |
---|
3892 | |
---|
3893 | \begin_inset space ~ |
---|
3894 | \end_inset |
---|
3895 | |
---|
3896 | |
---|
3897 | \begin_inset space ~ |
---|
3898 | \end_inset |
---|
3899 | |
---|
3900 | |
---|
3901 | \begin_inset space ~ |
---|
3902 | \end_inset |
---|
3903 | |
---|
3904 | |
---|
3905 | \begin_inset space ~ |
---|
3906 | \end_inset |
---|
3907 | |
---|
3908 | |
---|
3909 | \begin_inset space ~ |
---|
3910 | \end_inset |
---|
3911 | |
---|
3912 | |
---|
3913 | \begin_inset space ~ |
---|
3914 | \end_inset |
---|
3915 | |
---|
3916 | |
---|
3917 | \begin_inset space ~ |
---|
3918 | \end_inset |
---|
3919 | |
---|
3920 | 3.31 |
---|
3921 | \end_layout |
---|
3922 | |
---|
3923 | \begin_layout Standard |
---|
3924 | |
---|
3925 | \family typewriter |
---|
3926 | flatfile |
---|
3927 | \begin_inset space ~ |
---|
3928 | \end_inset |
---|
3929 | |
---|
3930 | |
---|
3931 | \begin_inset space ~ |
---|
3932 | \end_inset |
---|
3933 | |
---|
3934 | |
---|
3935 | \begin_inset space ~ |
---|
3936 | \end_inset |
---|
3937 | |
---|
3938 | 0.19 |
---|
3939 | \end_layout |
---|
3940 | |
---|
3941 | \begin_layout Standard |
---|
3942 | |
---|
3943 | \family typewriter |
---|
3944 | files |
---|
3945 | \begin_inset space ~ |
---|
3946 | \end_inset |
---|
3947 | |
---|
3948 | |
---|
3949 | \begin_inset space ~ |
---|
3950 | \end_inset |
---|
3951 | |
---|
3952 | |
---|
3953 | \begin_inset space ~ |
---|
3954 | \end_inset |
---|
3955 | |
---|
3956 | |
---|
3957 | \begin_inset space ~ |
---|
3958 | \end_inset |
---|
3959 | |
---|
3960 | |
---|
3961 | \begin_inset space ~ |
---|
3962 | \end_inset |
---|
3963 | |
---|
3964 | |
---|
3965 | \begin_inset space ~ |
---|
3966 | \end_inset |
---|
3967 | |
---|
3968 | 0.73 |
---|
3969 | \end_layout |
---|
3970 | |
---|
3971 | \begin_layout Standard |
---|
3972 | |
---|
3973 | \family typewriter |
---|
3974 | mysql |
---|
3975 | \begin_inset space ~ |
---|
3976 | \end_inset |
---|
3977 | |
---|
3978 | |
---|
3979 | \begin_inset space ~ |
---|
3980 | \end_inset |
---|
3981 | |
---|
3982 | |
---|
3983 | \begin_inset space ~ |
---|
3984 | \end_inset |
---|
3985 | |
---|
3986 | |
---|
3987 | \begin_inset space ~ |
---|
3988 | \end_inset |
---|
3989 | |
---|
3990 | |
---|
3991 | \begin_inset space ~ |
---|
3992 | \end_inset |
---|
3993 | |
---|
3994 | |
---|
3995 | \begin_inset space ~ |
---|
3996 | \end_inset |
---|
3997 | |
---|
3998 | 4.7 |
---|
3999 | \family default |
---|
4000 | 1 |
---|
4001 | \begin_inset Newline newline |
---|
4002 | \end_inset |
---|
4003 | |
---|
4004 | |
---|
4005 | \begin_inset Newline newline |
---|
4006 | \end_inset |
---|
4007 | |
---|
4008 | The winner is clearly the |
---|
4009 | \begin_inset Quotes eld |
---|
4010 | \end_inset |
---|
4011 | |
---|
4012 | flat file |
---|
4013 | \begin_inset Quotes erd |
---|
4014 | \end_inset |
---|
4015 | |
---|
4016 | implementation. |
---|
4017 | Disadvantage of this solution (and also of the |
---|
4018 | \begin_inset Quotes eld |
---|
4019 | \end_inset |
---|
4020 | |
---|
4021 | files |
---|
4022 | \begin_inset Quotes erd |
---|
4023 | \end_inset |
---|
4024 | |
---|
4025 | and |
---|
4026 | \begin_inset Quotes eld |
---|
4027 | \end_inset |
---|
4028 | |
---|
4029 | mysql |
---|
4030 | \begin_inset Quotes erd |
---|
4031 | \end_inset |
---|
4032 | |
---|
4033 | solution) is the amount of space that is used for the database: each line |
---|
4034 | takes 4 Kbyte. |
---|
4035 | The |
---|
4036 | \begin_inset Quotes eld |
---|
4037 | \end_inset |
---|
4038 | |
---|
4039 | gdbm |
---|
4040 | \begin_inset Quotes erd |
---|
4041 | \end_inset |
---|
4042 | |
---|
4043 | solution does not have this problem. |
---|
4044 | |
---|
4045 | \begin_inset Newline newline |
---|
4046 | \end_inset |
---|
4047 | |
---|
4048 | Normally, the stopos software will be used using an http server, so it is |
---|
4049 | more relevant to have look at the timings in this case. |
---|
4050 | As an example, that man page of bash (5459 lines) was put in the pool, |
---|
4051 | and all lines were retrieved and removed: |
---|
4052 | \begin_inset Newline newline |
---|
4053 | \end_inset |
---|
4054 | |
---|
4055 | |
---|
4056 | \begin_inset Newline newline |
---|
4057 | \end_inset |
---|
4058 | |
---|
4059 | |
---|
4060 | \family typewriter |
---|
4061 | database |
---|
4062 | \begin_inset space ~ |
---|
4063 | \end_inset |
---|
4064 | |
---|
4065 | |
---|
4066 | \begin_inset space ~ |
---|
4067 | \end_inset |
---|
4068 | |
---|
4069 | time(sec) |
---|
4070 | \end_layout |
---|
4071 | |
---|
4072 | \begin_layout Standard |
---|
4073 | |
---|
4074 | \family typewriter |
---|
4075 | gdbm |
---|
4076 | \begin_inset space ~ |
---|
4077 | \end_inset |
---|
4078 | |
---|
4079 | |
---|
4080 | \begin_inset space ~ |
---|
4081 | \end_inset |
---|
4082 | |
---|
4083 | |
---|
4084 | \begin_inset space ~ |
---|
4085 | \end_inset |
---|
4086 | |
---|
4087 | |
---|
4088 | \begin_inset space ~ |
---|
4089 | \end_inset |
---|
4090 | |
---|
4091 | |
---|
4092 | \begin_inset space ~ |
---|
4093 | \end_inset |
---|
4094 | |
---|
4095 | |
---|
4096 | \begin_inset space ~ |
---|
4097 | \end_inset |
---|
4098 | |
---|
4099 | |
---|
4100 | \begin_inset space ~ |
---|
4101 | \end_inset |
---|
4102 | |
---|
4103 | 187 |
---|
4104 | \end_layout |
---|
4105 | |
---|
4106 | \begin_layout Standard |
---|
4107 | |
---|
4108 | \family typewriter |
---|
4109 | flatfile |
---|
4110 | \begin_inset space ~ |
---|
4111 | \end_inset |
---|
4112 | |
---|
4113 | |
---|
4114 | \begin_inset space ~ |
---|
4115 | \end_inset |
---|
4116 | |
---|
4117 | |
---|
4118 | \begin_inset space ~ |
---|
4119 | \end_inset |
---|
4120 | |
---|
4121 | 182 |
---|
4122 | \end_layout |
---|
4123 | |
---|
4124 | \begin_layout Standard |
---|
4125 | |
---|
4126 | \family typewriter |
---|
4127 | files |
---|
4128 | \begin_inset space ~ |
---|
4129 | \end_inset |
---|
4130 | |
---|
4131 | |
---|
4132 | \begin_inset space ~ |
---|
4133 | \end_inset |
---|
4134 | |
---|
4135 | |
---|
4136 | \begin_inset space ~ |
---|
4137 | \end_inset |
---|
4138 | |
---|
4139 | |
---|
4140 | \begin_inset space ~ |
---|
4141 | \end_inset |
---|
4142 | |
---|
4143 | |
---|
4144 | \begin_inset space ~ |
---|
4145 | \end_inset |
---|
4146 | |
---|
4147 | |
---|
4148 | \begin_inset space ~ |
---|
4149 | \end_inset |
---|
4150 | |
---|
4151 | 190 |
---|
4152 | \end_layout |
---|
4153 | |
---|
4154 | \begin_layout Standard |
---|
4155 | |
---|
4156 | \family typewriter |
---|
4157 | mysql |
---|
4158 | \begin_inset space ~ |
---|
4159 | \end_inset |
---|
4160 | |
---|
4161 | |
---|
4162 | \begin_inset space ~ |
---|
4163 | \end_inset |
---|
4164 | |
---|
4165 | |
---|
4166 | \begin_inset space ~ |
---|
4167 | \end_inset |
---|
4168 | |
---|
4169 | |
---|
4170 | \begin_inset space ~ |
---|
4171 | \end_inset |
---|
4172 | |
---|
4173 | |
---|
4174 | \begin_inset space ~ |
---|
4175 | \end_inset |
---|
4176 | |
---|
4177 | |
---|
4178 | \begin_inset space ~ |
---|
4179 | \end_inset |
---|
4180 | |
---|
4181 | |
---|
4182 | \family default |
---|
4183 | 309 |
---|
4184 | \begin_inset Newline newline |
---|
4185 | \end_inset |
---|
4186 | |
---|
4187 | |
---|
4188 | \begin_inset Newline newline |
---|
4189 | \end_inset |
---|
4190 | |
---|
4191 | These timings show, that for performance reasons, there is not much difference |
---|
4192 | between |
---|
4193 | \begin_inset Quotes eld |
---|
4194 | \end_inset |
---|
4195 | |
---|
4196 | gdbm |
---|
4197 | \begin_inset Quotes erd |
---|
4198 | \end_inset |
---|
4199 | |
---|
4200 | , |
---|
4201 | \begin_inset Quotes eld |
---|
4202 | \end_inset |
---|
4203 | |
---|
4204 | flatfile |
---|
4205 | \begin_inset Quotes erd |
---|
4206 | \end_inset |
---|
4207 | |
---|
4208 | and |
---|
4209 | \begin_inset Quotes eld |
---|
4210 | \end_inset |
---|
4211 | |
---|
4212 | files |
---|
4213 | \begin_inset Quotes erd |
---|
4214 | \end_inset |
---|
4215 | |
---|
4216 | . |
---|
4217 | We choose the |
---|
4218 | \begin_inset Quotes eld |
---|
4219 | \end_inset |
---|
4220 | |
---|
4221 | gdbm |
---|
4222 | \begin_inset Quotes erd |
---|
4223 | \end_inset |
---|
4224 | |
---|
4225 | implementation, because of it's economy with disk space used. |
---|
4226 | \end_layout |
---|
4227 | |
---|
4228 | \begin_layout Subsection* |
---|
4229 | Installation |
---|
4230 | \end_layout |
---|
4231 | |
---|
4232 | \begin_layout Standard |
---|
4233 | The source tree contains a file |
---|
4234 | \begin_inset Quotes eld |
---|
4235 | \end_inset |
---|
4236 | |
---|
4237 | Make.inc |
---|
4238 | \begin_inset Quotes erd |
---|
4239 | \end_inset |
---|
4240 | |
---|
4241 | , defining variables that determine the version of the program, the installation |
---|
4242 | directories and which database versions should be produced. |
---|
4243 | This file will be included in the Makefile. |
---|
4244 | A trivial script |
---|
4245 | \begin_inset Quotes eld |
---|
4246 | \end_inset |
---|
4247 | |
---|
4248 | makeit |
---|
4249 | \begin_inset Quotes erd |
---|
4250 | \end_inset |
---|
4251 | |
---|
4252 | sets the umask and calls make(1) to create and install the executables. |
---|
4253 | The script |
---|
4254 | \begin_inset Quotes eld |
---|
4255 | \end_inset |
---|
4256 | |
---|
4257 | clean |
---|
4258 | \begin_inset Quotes erd |
---|
4259 | \end_inset |
---|
4260 | |
---|
4261 | executes a |
---|
4262 | \begin_inset Quotes eld |
---|
4263 | \end_inset |
---|
4264 | |
---|
4265 | make clean |
---|
4266 | \begin_inset Quotes erd |
---|
4267 | \end_inset |
---|
4268 | |
---|
4269 | to get rid of compilation products. |
---|
4270 | \end_layout |
---|
4271 | |
---|
4272 | \begin_layout Subsubsection* |
---|
4273 | Extra tools |
---|
4274 | \end_layout |
---|
4275 | |
---|
4276 | \begin_layout Standard |
---|
4277 | The source tree also contains the scripts |
---|
4278 | \begin_inset Quotes eld |
---|
4279 | \end_inset |
---|
4280 | |
---|
4281 | sara-get-num-cores |
---|
4282 | \begin_inset Quotes erd |
---|
4283 | \end_inset |
---|
4284 | |
---|
4285 | and |
---|
4286 | \begin_inset Quotes eld |
---|
4287 | \end_inset |
---|
4288 | |
---|
4289 | sara-get-mem-size |
---|
4290 | \begin_inset Quotes erd |
---|
4291 | \end_inset |
---|
4292 | |
---|
4293 | , along with their man pages. |
---|
4294 | Sara-get-num-cores prints the number of available cores, while sara-get-mem-siz |
---|
4295 | e prints the amount of memory. |
---|
4296 | Both numbers can be used to determine how many processes should run in |
---|
4297 | parallel on a given node. |
---|
4298 | These scripts and man pages will be installed also by calling |
---|
4299 | \begin_inset Quotes eld |
---|
4300 | \end_inset |
---|
4301 | |
---|
4302 | ./makeit |
---|
4303 | \begin_inset Quotes erd |
---|
4304 | \end_inset |
---|
4305 | |
---|
4306 | . |
---|
4307 | \end_layout |
---|
4308 | |
---|
4309 | \begin_layout Subsection* |
---|
4310 | Example of a job using stopos |
---|
4311 | \end_layout |
---|
4312 | |
---|
4313 | \begin_layout Standard |
---|
4314 | \begin_inset listings |
---|
4315 | inline false |
---|
4316 | status open |
---|
4317 | |
---|
4318 | \begin_layout Plain Layout |
---|
4319 | |
---|
4320 | 1 #PBS -lnodes=1 -lwalltime=3:00:00 |
---|
4321 | \end_layout |
---|
4322 | |
---|
4323 | \begin_layout Plain Layout |
---|
4324 | |
---|
4325 | 2 module load stopos |
---|
4326 | \end_layout |
---|
4327 | |
---|
4328 | \begin_layout Plain Layout |
---|
4329 | |
---|
4330 | 3 ncores=`sara-get-num-cores` |
---|
4331 | \end_layout |
---|
4332 | |
---|
4333 | \begin_layout Plain Layout |
---|
4334 | |
---|
4335 | 4 for ((i=1; i<=ncores; i++)) ; do |
---|
4336 | \end_layout |
---|
4337 | |
---|
4338 | \begin_layout Plain Layout |
---|
4339 | |
---|
4340 | 5 ( |
---|
4341 | \end_layout |
---|
4342 | |
---|
4343 | \begin_layout Plain Layout |
---|
4344 | |
---|
4345 | 6 for ((j=1; j<=10; j++)) ; do |
---|
4346 | \end_layout |
---|
4347 | |
---|
4348 | \begin_layout Plain Layout |
---|
4349 | |
---|
4350 | 7 stopos next -p pool1 |
---|
4351 | \end_layout |
---|
4352 | |
---|
4353 | \begin_layout Plain Layout |
---|
4354 | |
---|
4355 | 8 if [ "$STOPOS_RC" != "OK" ]; then |
---|
4356 | \end_layout |
---|
4357 | |
---|
4358 | \begin_layout Plain Layout |
---|
4359 | |
---|
4360 | 9 break |
---|
4361 | \end_layout |
---|
4362 | |
---|
4363 | \begin_layout Plain Layout |
---|
4364 | |
---|
4365 | 10 fi |
---|
4366 | \end_layout |
---|
4367 | |
---|
4368 | \begin_layout Plain Layout |
---|
4369 | |
---|
4370 | 11 eval "scanner $STOPOS_VALUE" |
---|
4371 | \end_layout |
---|
4372 | |
---|
4373 | \begin_layout Plain Layout |
---|
4374 | |
---|
4375 | 12 stopos remove -p pool1 |
---|
4376 | \end_layout |
---|
4377 | |
---|
4378 | \begin_layout Plain Layout |
---|
4379 | |
---|
4380 | 13 done |
---|
4381 | \end_layout |
---|
4382 | |
---|
4383 | \begin_layout Plain Layout |
---|
4384 | |
---|
4385 | 14 ) & |
---|
4386 | \end_layout |
---|
4387 | |
---|
4388 | \begin_layout Plain Layout |
---|
4389 | |
---|
4390 | 15 done |
---|
4391 | \end_layout |
---|
4392 | |
---|
4393 | \begin_layout Plain Layout |
---|
4394 | |
---|
4395 | 16 wait |
---|
4396 | \end_layout |
---|
4397 | |
---|
4398 | \end_inset |
---|
4399 | |
---|
4400 | |
---|
4401 | \end_layout |
---|
4402 | |
---|
4403 | \begin_layout Itemize |
---|
4404 | 1 Note: we do not specify how many cores a node should have. |
---|
4405 | \end_layout |
---|
4406 | |
---|
4407 | \begin_layout Itemize |
---|
4408 | 2 Load the stopos module. |
---|
4409 | \end_layout |
---|
4410 | |
---|
4411 | \begin_layout Itemize |
---|
4412 | 3 Determine the number of cores available on this node: Module stopos contains |
---|
4413 | 'sara-get-num-cores': this command prints the number of cores available |
---|
4414 | on the node. |
---|
4415 | The command 'sara-get-mem-size' prints the available amount of memory in |
---|
4416 | Mbytes. |
---|
4417 | We do not use it here, but this number could be interesting when running |
---|
4418 | memory intensive programs. |
---|
4419 | \end_layout |
---|
4420 | |
---|
4421 | \begin_layout Itemize |
---|
4422 | 4 Loop over the number of cores. |
---|
4423 | The content of the loop is placed in the background (see 14) |
---|
4424 | \end_layout |
---|
4425 | |
---|
4426 | \begin_layout Itemize |
---|
4427 | 6 Loop over the number of the desired number of repetitions. |
---|
4428 | |
---|
4429 | \end_layout |
---|
4430 | |
---|
4431 | \begin_layout Itemize |
---|
4432 | 7 Here we get the value of the next line, delivered in the environment variable |
---|
4433 | STOPOS_VALUE. |
---|
4434 | The environment variable STOPOS_RC has the value "OK" if everything went |
---|
4435 | ok. |
---|
4436 | STOPOS_KEY contains a value that can be used to remove the line from the |
---|
4437 | pool. |
---|
4438 | We use the pool 'pool1', created before. |
---|
4439 | \end_layout |
---|
4440 | |
---|
4441 | \begin_layout Itemize |
---|
4442 | 8 .. |
---|
4443 | 10 Break out the loop if stopos fails (usually because there are no lines |
---|
4444 | left). |
---|
4445 | |
---|
4446 | \end_layout |
---|
4447 | |
---|
4448 | \begin_layout Itemize |
---|
4449 | 11 Use the parameters in $STOPOS_VALUE. |
---|
4450 | The 'eval' and quotes ensure that spaces and quotes in the parameters are |
---|
4451 | correctly interpreted. |
---|
4452 | |
---|
4453 | \end_layout |
---|
4454 | |
---|
4455 | \begin_layout Itemize |
---|
4456 | 12 Remove the line we just processed from the pool. |
---|
4457 | |
---|
4458 | \end_layout |
---|
4459 | |
---|
4460 | \begin_layout Itemize |
---|
4461 | 14 Notice the &: this takes care that ncores instantiations of scanner will |
---|
4462 | be started in parallel. |
---|
4463 | |
---|
4464 | \end_layout |
---|
4465 | |
---|
4466 | \begin_layout Itemize |
---|
4467 | 16 The 'wait' ensures that the job script will only finish after all background |
---|
4468 | processes are ended. |
---|
4469 | \end_layout |
---|
4470 | |
---|
4471 | \begin_layout Itemize |
---|
4472 | The job can be submitted a number of times with one 'qsub' command, for |
---|
4473 | example: |
---|
4474 | \family typewriter |
---|
4475 | qsub -t 1-100 job |
---|
4476 | \end_layout |
---|
4477 | |
---|
4478 | \begin_layout Subsection* |
---|
4479 | Man page of stopos |
---|
4480 | \end_layout |
---|
4481 | |
---|
4482 | \begin_layout Standard |
---|
4483 | |
---|
4484 | \family typewriter |
---|
4485 | \begin_inset listings |
---|
4486 | inline false |
---|
4487 | status open |
---|
4488 | |
---|
4489 | \begin_layout Plain Layout |
---|
4490 | |
---|
4491 | \end_layout |
---|
4492 | |
---|
4493 | \begin_layout Plain Layout |
---|
4494 | |
---|
4495 | \end_layout |
---|
4496 | |
---|
4497 | \begin_layout Plain Layout |
---|
4498 | |
---|
4499 | STOPOS(1) STOPOS(1) |
---|
4500 | \end_layout |
---|
4501 | |
---|
4502 | \begin_layout Plain Layout |
---|
4503 | |
---|
4504 | \end_layout |
---|
4505 | |
---|
4506 | \begin_layout Plain Layout |
---|
4507 | |
---|
4508 | \end_layout |
---|
4509 | |
---|
4510 | \begin_layout Plain Layout |
---|
4511 | |
---|
4512 | \end_layout |
---|
4513 | |
---|
4514 | \begin_layout Plain Layout |
---|
4515 | |
---|
4516 | NAME |
---|
4517 | \end_layout |
---|
4518 | |
---|
4519 | \begin_layout Plain Layout |
---|
4520 | |
---|
4521 | stopos - alias to call the program stoposclient and eval it's output |
---|
4522 | \end_layout |
---|
4523 | |
---|
4524 | \begin_layout Plain Layout |
---|
4525 | |
---|
4526 | \end_layout |
---|
4527 | |
---|
4528 | \begin_layout Plain Layout |
---|
4529 | |
---|
4530 | SYNOPSIS |
---|
4531 | \end_layout |
---|
4532 | |
---|
4533 | \begin_layout Plain Layout |
---|
4534 | |
---|
4535 | stopos -h,--help |
---|
4536 | \end_layout |
---|
4537 | |
---|
4538 | \begin_layout Plain Layout |
---|
4539 | |
---|
4540 | \end_layout |
---|
4541 | |
---|
4542 | \begin_layout Plain Layout |
---|
4543 | |
---|
4544 | stopos -v,--version |
---|
4545 | \end_layout |
---|
4546 | |
---|
4547 | \begin_layout Plain Layout |
---|
4548 | |
---|
4549 | \end_layout |
---|
4550 | |
---|
4551 | \begin_layout Plain Layout |
---|
4552 | |
---|
4553 | stopos create [ -p,--pool POOL ] |
---|
4554 | \end_layout |
---|
4555 | |
---|
4556 | \begin_layout Plain Layout |
---|
4557 | |
---|
4558 | \end_layout |
---|
4559 | |
---|
4560 | \begin_layout Plain Layout |
---|
4561 | |
---|
4562 | stopos status [ -p,--pool POOL] |
---|
4563 | \end_layout |
---|
4564 | |
---|
4565 | \begin_layout Plain Layout |
---|
4566 | |
---|
4567 | \end_layout |
---|
4568 | |
---|
4569 | \begin_layout Plain Layout |
---|
4570 | |
---|
4571 | stopos purge [ -p,--pool POOL ] |
---|
4572 | \end_layout |
---|
4573 | |
---|
4574 | \begin_layout Plain Layout |
---|
4575 | |
---|
4576 | \end_layout |
---|
4577 | |
---|
4578 | \begin_layout Plain Layout |
---|
4579 | |
---|
4580 | stopos pools |
---|
4581 | \end_layout |
---|
4582 | |
---|
4583 | \begin_layout Plain Layout |
---|
4584 | |
---|
4585 | \end_layout |
---|
4586 | |
---|
4587 | \begin_layout Plain Layout |
---|
4588 | |
---|
4589 | stopos add [ -p,--pool POOL ] [ FILENAME ] |
---|
4590 | \end_layout |
---|
4591 | |
---|
4592 | \begin_layout Plain Layout |
---|
4593 | |
---|
4594 | \end_layout |
---|
4595 | |
---|
4596 | \begin_layout Plain Layout |
---|
4597 | |
---|
4598 | stopos next [ -p,--pool POOL ] [ -m,--multi ] |
---|
4599 | \end_layout |
---|
4600 | |
---|
4601 | \begin_layout Plain Layout |
---|
4602 | |
---|
4603 | \end_layout |
---|
4604 | |
---|
4605 | \begin_layout Plain Layout |
---|
4606 | |
---|
4607 | stopos remove [ -p,--pool POOL] [ KEY ] |
---|
4608 | \end_layout |
---|
4609 | |
---|
4610 | \begin_layout Plain Layout |
---|
4611 | |
---|
4612 | \end_layout |
---|
4613 | |
---|
4614 | \begin_layout Plain Layout |
---|
4615 | |
---|
4616 | stopos dump [ -p,--pool POOL] |
---|
4617 | \end_layout |
---|
4618 | |
---|
4619 | \begin_layout Plain Layout |
---|
4620 | |
---|
4621 | \end_layout |
---|
4622 | |
---|
4623 | \begin_layout Plain Layout |
---|
4624 | |
---|
4625 | The -q,--quiet flag supresses most output. |
---|
4626 | \end_layout |
---|
4627 | |
---|
4628 | \begin_layout Plain Layout |
---|
4629 | |
---|
4630 | \end_layout |
---|
4631 | |
---|
4632 | \begin_layout Plain Layout |
---|
4633 | |
---|
4634 | DESCRIPTION |
---|
4635 | \end_layout |
---|
4636 | |
---|
4637 | \begin_layout Plain Layout |
---|
4638 | |
---|
4639 | Stopos is an alias using the program stoposclient, an utility to |
---|
4640 | store |
---|
4641 | \end_layout |
---|
4642 | |
---|
4643 | \begin_layout Plain Layout |
---|
4644 | |
---|
4645 | and retrieve text lines in a pool. |
---|
4646 | In general, the text lines are used |
---|
4647 | \end_layout |
---|
4648 | |
---|
4649 | \begin_layout Plain Layout |
---|
4650 | |
---|
4651 | as command parameters, see Examples. |
---|
4652 | \end_layout |
---|
4653 | |
---|
4654 | \begin_layout Plain Layout |
---|
4655 | |
---|
4656 | \end_layout |
---|
4657 | |
---|
4658 | \begin_layout Plain Layout |
---|
4659 | |
---|
4660 | COMMANDS |
---|
4661 | \end_layout |
---|
4662 | |
---|
4663 | \begin_layout Plain Layout |
---|
4664 | |
---|
4665 | -h,--help |
---|
4666 | \end_layout |
---|
4667 | |
---|
4668 | \begin_layout Plain Layout |
---|
4669 | |
---|
4670 | Prints usage information. |
---|
4671 | \end_layout |
---|
4672 | |
---|
4673 | \begin_layout Plain Layout |
---|
4674 | |
---|
4675 | \end_layout |
---|
4676 | |
---|
4677 | \begin_layout Plain Layout |
---|
4678 | |
---|
4679 | -v,--version |
---|
4680 | \end_layout |
---|
4681 | |
---|
4682 | \begin_layout Plain Layout |
---|
4683 | |
---|
4684 | Prints version. |
---|
4685 | \end_layout |
---|
4686 | |
---|
4687 | \begin_layout Plain Layout |
---|
4688 | |
---|
4689 | \end_layout |
---|
4690 | |
---|
4691 | \begin_layout Plain Layout |
---|
4692 | |
---|
4693 | create [ -p,--pool POOL ] [ FILENAME ] |
---|
4694 | \end_layout |
---|
4695 | |
---|
4696 | \begin_layout Plain Layout |
---|
4697 | |
---|
4698 | Creates new pool. |
---|
4699 | A pool with the same name will be removed first. |
---|
4700 | \end_layout |
---|
4701 | |
---|
4702 | \begin_layout Plain Layout |
---|
4703 | |
---|
4704 | \end_layout |
---|
4705 | |
---|
4706 | \begin_layout Plain Layout |
---|
4707 | |
---|
4708 | status |
---|
4709 | \end_layout |
---|
4710 | |
---|
4711 | \begin_layout Plain Layout |
---|
4712 | |
---|
4713 | Prints to standard error environment variable |
---|
4714 | \end_layout |
---|
4715 | |
---|
4716 | \begin_layout Plain Layout |
---|
4717 | |
---|
4718 | --------------------------------------------------- |
---|
4719 | \end_layout |
---|
4720 | |
---|
4721 | \begin_layout Plain Layout |
---|
4722 | |
---|
4723 | total number of lines added STOPOS_COUNT |
---|
4724 | \end_layout |
---|
4725 | |
---|
4726 | \begin_layout Plain Layout |
---|
4727 | |
---|
4728 | number of lines present STOPOS_PRESENT |
---|
4729 | \end_layout |
---|
4730 | |
---|
4731 | \begin_layout Plain Layout |
---|
4732 | |
---|
4733 | number of lines never committed STOPOS_PRESENT0 |
---|
4734 | \end_layout |
---|
4735 | |
---|
4736 | \begin_layout Plain Layout |
---|
4737 | |
---|
4738 | \end_layout |
---|
4739 | |
---|
4740 | \begin_layout Plain Layout |
---|
4741 | |
---|
4742 | \end_layout |
---|
4743 | |
---|
4744 | \begin_layout Plain Layout |
---|
4745 | |
---|
4746 | purge [-p,--pool POOL ] |
---|
4747 | \end_layout |
---|
4748 | |
---|
4749 | \begin_layout Plain Layout |
---|
4750 | |
---|
4751 | Removes the pool. |
---|
4752 | \end_layout |
---|
4753 | |
---|
4754 | \begin_layout Plain Layout |
---|
4755 | |
---|
4756 | \end_layout |
---|
4757 | |
---|
4758 | \begin_layout Plain Layout |
---|
4759 | |
---|
4760 | pools [-p,--pool POOL ] |
---|
4761 | \end_layout |
---|
4762 | |
---|
4763 | \begin_layout Plain Layout |
---|
4764 | |
---|
4765 | Lists on standard error the pools available. |
---|
4766 | The environment |
---|
4767 | \end_layout |
---|
4768 | |
---|
4769 | \begin_layout Plain Layout |
---|
4770 | |
---|
4771 | variable STOPOS_VALUE is set accordingly. |
---|
4772 | \end_layout |
---|
4773 | |
---|
4774 | \begin_layout Plain Layout |
---|
4775 | |
---|
4776 | \end_layout |
---|
4777 | |
---|
4778 | \begin_layout Plain Layout |
---|
4779 | |
---|
4780 | add [ -p,--pool POOL ] [ FILENAME ] |
---|
4781 | \end_layout |
---|
4782 | |
---|
4783 | \begin_layout Plain Layout |
---|
4784 | |
---|
4785 | Adds lines from FILENAME, default from stdin. |
---|
4786 | The environ‐ |
---|
4787 | \end_layout |
---|
4788 | |
---|
4789 | \begin_layout Plain Layout |
---|
4790 | |
---|
4791 | ment variables STOPOS_RC and STOPS_KEY are set. |
---|
4792 | \end_layout |
---|
4793 | |
---|
4794 | \begin_layout Plain Layout |
---|
4795 | |
---|
4796 | NOTE: when stopos is reading from a pipe as in: |
---|
4797 | \end_layout |
---|
4798 | |
---|
4799 | \begin_layout Plain Layout |
---|
4800 | |
---|
4801 | cat parmfile | stopos add |
---|
4802 | \end_layout |
---|
4803 | |
---|
4804 | \begin_layout Plain Layout |
---|
4805 | |
---|
4806 | no environment variables are set. |
---|
4807 | \end_layout |
---|
4808 | |
---|
4809 | \begin_layout Plain Layout |
---|
4810 | |
---|
4811 | \end_layout |
---|
4812 | |
---|
4813 | \begin_layout Plain Layout |
---|
4814 | |
---|
4815 | next [ -p,--pool POOL ] [ -m,--multi ] |
---|
4816 | \end_layout |
---|
4817 | |
---|
4818 | \begin_layout Plain Layout |
---|
4819 | |
---|
4820 | Gets the next line from the pool. |
---|
4821 | The environment variables |
---|
4822 | \end_layout |
---|
4823 | |
---|
4824 | \begin_layout Plain Layout |
---|
4825 | |
---|
4826 | STOPOS_VALUE, STOPOS_COMMITTED and STOPOS_KEY are set, see |
---|
4827 | \end_layout |
---|
4828 | |
---|
4829 | \begin_layout Plain Layout |
---|
4830 | |
---|
4831 | ENVIRONMENT. |
---|
4832 | By default, the same line in the pool will be |
---|
4833 | \end_layout |
---|
4834 | |
---|
4835 | \begin_layout Plain Layout |
---|
4836 | |
---|
4837 | produced only once. |
---|
4838 | When all lines are commited, STOPS_RC |
---|
4839 | \end_layout |
---|
4840 | |
---|
4841 | \begin_layout Plain Layout |
---|
4842 | |
---|
4843 | will not be equal to OK. |
---|
4844 | Using the --multi flag, the same |
---|
4845 | \end_layout |
---|
4846 | |
---|
4847 | \begin_layout Plain Layout |
---|
4848 | |
---|
4849 | line can be produced more than once, if necessary stopos |
---|
4850 | \end_layout |
---|
4851 | |
---|
4852 | \begin_layout Plain Layout |
---|
4853 | |
---|
4854 | will wrap around. |
---|
4855 | This can be useful for dealing with |
---|
4856 | \end_layout |
---|
4857 | |
---|
4858 | \begin_layout Plain Layout |
---|
4859 | |
---|
4860 | crashed jobs. |
---|
4861 | \end_layout |
---|
4862 | |
---|
4863 | \begin_layout Plain Layout |
---|
4864 | |
---|
4865 | \end_layout |
---|
4866 | |
---|
4867 | \begin_layout Plain Layout |
---|
4868 | |
---|
4869 | remove [-p,--pool POOL ] [ KEY ] |
---|
4870 | \end_layout |
---|
4871 | |
---|
4872 | \begin_layout Plain Layout |
---|
4873 | |
---|
4874 | Removes the line with key KEY as ready. |
---|
4875 | If not specified on |
---|
4876 | \end_layout |
---|
4877 | |
---|
4878 | \begin_layout Plain Layout |
---|
4879 | |
---|
4880 | the commandline, the value of environment variable STO‐ |
---|
4881 | \end_layout |
---|
4882 | |
---|
4883 | \begin_layout Plain Layout |
---|
4884 | |
---|
4885 | POS_KEY is used. |
---|
4886 | \end_layout |
---|
4887 | |
---|
4888 | \begin_layout Plain Layout |
---|
4889 | |
---|
4890 | \end_layout |
---|
4891 | |
---|
4892 | \begin_layout Plain Layout |
---|
4893 | |
---|
4894 | dump [-p,--pool POOL ] |
---|
4895 | \end_layout |
---|
4896 | |
---|
4897 | \begin_layout Plain Layout |
---|
4898 | |
---|
4899 | Reads the next available line, and puts it, preceded by it's |
---|
4900 | \end_layout |
---|
4901 | |
---|
4902 | \begin_layout Plain Layout |
---|
4903 | |
---|
4904 | key and number of commitments in environment variable STO‐ |
---|
4905 | \end_layout |
---|
4906 | |
---|
4907 | \begin_layout Plain Layout |
---|
4908 | |
---|
4909 | POS_VALUE. |
---|
4910 | The first call will produce the first line. |
---|
4911 | When |
---|
4912 | \end_layout |
---|
4913 | |
---|
4914 | \begin_layout Plain Layout |
---|
4915 | |
---|
4916 | all lines have been delivered, STOPOS_RC gets a value other |
---|
4917 | \end_layout |
---|
4918 | |
---|
4919 | \begin_layout Plain Layout |
---|
4920 | |
---|
4921 | than OK. |
---|
4922 | A subsequent call will start the dump with the |
---|
4923 | \end_layout |
---|
4924 | |
---|
4925 | \begin_layout Plain Layout |
---|
4926 | |
---|
4927 | first line again. |
---|
4928 | \end_layout |
---|
4929 | |
---|
4930 | \begin_layout Plain Layout |
---|
4931 | |
---|
4932 | \end_layout |
---|
4933 | |
---|
4934 | \begin_layout Plain Layout |
---|
4935 | |
---|
4936 | OPTIONS |
---|
4937 | \end_layout |
---|
4938 | |
---|
4939 | \begin_layout Plain Layout |
---|
4940 | |
---|
4941 | -p,--pool POOL |
---|
4942 | \end_layout |
---|
4943 | |
---|
4944 | \begin_layout Plain Layout |
---|
4945 | |
---|
4946 | POOL is a unique name of the pool. |
---|
4947 | Default: pool. |
---|
4948 | The name |
---|
4949 | \end_layout |
---|
4950 | |
---|
4951 | \begin_layout Plain Layout |
---|
4952 | |
---|
4953 | of the pool can also be set using the environment variable |
---|
4954 | \end_layout |
---|
4955 | |
---|
4956 | \begin_layout Plain Layout |
---|
4957 | |
---|
4958 | STOPOS_POOL. |
---|
4959 | The command line flag has precedence. |
---|
4960 | \end_layout |
---|
4961 | |
---|
4962 | \begin_layout Plain Layout |
---|
4963 | |
---|
4964 | \end_layout |
---|
4965 | |
---|
4966 | \begin_layout Plain Layout |
---|
4967 | |
---|
4968 | \end_layout |
---|
4969 | |
---|
4970 | \begin_layout Plain Layout |
---|
4971 | |
---|
4972 | ENVIRONMENT |
---|
4973 | \end_layout |
---|
4974 | |
---|
4975 | \begin_layout Plain Layout |
---|
4976 | |
---|
4977 | Stopos sets the following environment variables: |
---|
4978 | \end_layout |
---|
4979 | |
---|
4980 | \begin_layout Plain Layout |
---|
4981 | |
---|
4982 | \end_layout |
---|
4983 | |
---|
4984 | \begin_layout Plain Layout |
---|
4985 | |
---|
4986 | STOPOS_RC if the value is OK, than no errors were found |
---|
4987 | \end_layout |
---|
4988 | |
---|
4989 | \begin_layout Plain Layout |
---|
4990 | |
---|
4991 | \end_layout |
---|
4992 | |
---|
4993 | \begin_layout Plain Layout |
---|
4994 | |
---|
4995 | STOPOS_KEY contains the keyvalue of the line produced with the |
---|
4996 | \end_layout |
---|
4997 | |
---|
4998 | \begin_layout Plain Layout |
---|
4999 | |
---|
5000 | 'next' command |
---|
5001 | \end_layout |
---|
5002 | |
---|
5003 | \begin_layout Plain Layout |
---|
5004 | |
---|
5005 | \end_layout |
---|
5006 | |
---|
5007 | \begin_layout Plain Layout |
---|
5008 | |
---|
5009 | STOPOS_COMMITTED contains the number of times the line has been |
---|
5010 | \end_layout |
---|
5011 | |
---|
5012 | \begin_layout Plain Layout |
---|
5013 | |
---|
5014 | committed |
---|
5015 | \end_layout |
---|
5016 | |
---|
5017 | \begin_layout Plain Layout |
---|
5018 | |
---|
5019 | \end_layout |
---|
5020 | |
---|
5021 | \begin_layout Plain Layout |
---|
5022 | |
---|
5023 | STOPOS_VALUE contains the line produced by the 'next' command or |
---|
5024 | \end_layout |
---|
5025 | |
---|
5026 | \begin_layout Plain Layout |
---|
5027 | |
---|
5028 | the result of the 'pools' command |
---|
5029 | \end_layout |
---|
5030 | |
---|
5031 | \begin_layout Plain Layout |
---|
5032 | |
---|
5033 | \end_layout |
---|
5034 | |
---|
5035 | \begin_layout Plain Layout |
---|
5036 | |
---|
5037 | STOPOS_COUNT STOPOS_PRESENT STOPOS_PRESENT0 see the 'status' |
---|
5038 | \end_layout |
---|
5039 | |
---|
5040 | \begin_layout Plain Layout |
---|
5041 | |
---|
5042 | command above |
---|
5043 | \end_layout |
---|
5044 | |
---|
5045 | \begin_layout Plain Layout |
---|
5046 | |
---|
5047 | \end_layout |
---|
5048 | |
---|
5049 | \begin_layout Plain Layout |
---|
5050 | |
---|
5051 | Stopos uses the following environment variables: |
---|
5052 | \end_layout |
---|
5053 | |
---|
5054 | \begin_layout Plain Layout |
---|
5055 | |
---|
5056 | \end_layout |
---|
5057 | |
---|
5058 | \begin_layout Plain Layout |
---|
5059 | |
---|
5060 | STOPOS_POOL see the description of the --pool flag under OPTIONS |
---|
5061 | \end_layout |
---|
5062 | |
---|
5063 | \begin_layout Plain Layout |
---|
5064 | |
---|
5065 | \end_layout |
---|
5066 | |
---|
5067 | \begin_layout Plain Layout |
---|
5068 | |
---|
5069 | STOPOS_KEY see the 'remove' flag above |
---|
5070 | \end_layout |
---|
5071 | |
---|
5072 | \begin_layout Plain Layout |
---|
5073 | |
---|
5074 | \end_layout |
---|
5075 | |
---|
5076 | \begin_layout Plain Layout |
---|
5077 | |
---|
5078 | STOPOS_SERVER_URL the url stopos uses to access the server, |
---|
5079 | \end_layout |
---|
5080 | |
---|
5081 | \begin_layout Plain Layout |
---|
5082 | |
---|
5083 | default http://stopos.osd.surfsara.nl/cgi-bin/stoposserver |
---|
5084 | \end_layout |
---|
5085 | |
---|
5086 | \begin_layout Plain Layout |
---|
5087 | |
---|
5088 | \end_layout |
---|
5089 | |
---|
5090 | \begin_layout Plain Layout |
---|
5091 | |
---|
5092 | \end_layout |
---|
5093 | |
---|
5094 | \begin_layout Plain Layout |
---|
5095 | |
---|
5096 | EXAMPLES |
---|
5097 | \end_layout |
---|
5098 | |
---|
5099 | \begin_layout Plain Layout |
---|
5100 | |
---|
5101 | Create a pool with the first 10 lines from the man page of sed: |
---|
5102 | \end_layout |
---|
5103 | |
---|
5104 | \begin_layout Plain Layout |
---|
5105 | |
---|
5106 | \end_layout |
---|
5107 | |
---|
5108 | \begin_layout Plain Layout |
---|
5109 | |
---|
5110 | man sed | head > parmfile |
---|
5111 | \end_layout |
---|
5112 | |
---|
5113 | \begin_layout Plain Layout |
---|
5114 | |
---|
5115 | stopos create |
---|
5116 | \end_layout |
---|
5117 | |
---|
5118 | \begin_layout Plain Layout |
---|
5119 | |
---|
5120 | stopos add parmfile |
---|
5121 | \end_layout |
---|
5122 | |
---|
5123 | \begin_layout Plain Layout |
---|
5124 | |
---|
5125 | \end_layout |
---|
5126 | |
---|
5127 | \begin_layout Plain Layout |
---|
5128 | |
---|
5129 | Get a line: |
---|
5130 | \end_layout |
---|
5131 | |
---|
5132 | \begin_layout Plain Layout |
---|
5133 | |
---|
5134 | \end_layout |
---|
5135 | |
---|
5136 | \begin_layout Plain Layout |
---|
5137 | |
---|
5138 | stopos next |
---|
5139 | \end_layout |
---|
5140 | |
---|
5141 | \begin_layout Plain Layout |
---|
5142 | |
---|
5143 | \end_layout |
---|
5144 | |
---|
5145 | \begin_layout Plain Layout |
---|
5146 | |
---|
5147 | The environment variable STOPOS_VALUE contains now one of |
---|
5148 | \end_layout |
---|
5149 | |
---|
5150 | \begin_layout Plain Layout |
---|
5151 | |
---|
5152 | the first ten lines of the man page of sed. |
---|
5153 | \end_layout |
---|
5154 | |
---|
5155 | \begin_layout Plain Layout |
---|
5156 | |
---|
5157 | \end_layout |
---|
5158 | |
---|
5159 | \begin_layout Plain Layout |
---|
5160 | |
---|
5161 | You can use this in a command like this: |
---|
5162 | \end_layout |
---|
5163 | |
---|
5164 | \begin_layout Plain Layout |
---|
5165 | |
---|
5166 | \end_layout |
---|
5167 | |
---|
5168 | \begin_layout Plain Layout |
---|
5169 | |
---|
5170 | eval "myparser $STOPOS_VALUE" |
---|
5171 | \end_layout |
---|
5172 | |
---|
5173 | \begin_layout Plain Layout |
---|
5174 | |
---|
5175 | \end_layout |
---|
5176 | |
---|
5177 | \begin_layout Plain Layout |
---|
5178 | |
---|
5179 | The line can be removed by: |
---|
5180 | \end_layout |
---|
5181 | |
---|
5182 | \begin_layout Plain Layout |
---|
5183 | |
---|
5184 | \end_layout |
---|
5185 | |
---|
5186 | \begin_layout Plain Layout |
---|
5187 | |
---|
5188 | stopos remove |
---|
5189 | \end_layout |
---|
5190 | |
---|
5191 | \begin_layout Plain Layout |
---|
5192 | |
---|
5193 | \end_layout |
---|
5194 | |
---|
5195 | \begin_layout Plain Layout |
---|
5196 | |
---|
5197 | Finally, the pool can be completely removed by: |
---|
5198 | \end_layout |
---|
5199 | |
---|
5200 | \begin_layout Plain Layout |
---|
5201 | |
---|
5202 | \end_layout |
---|
5203 | |
---|
5204 | \begin_layout Plain Layout |
---|
5205 | |
---|
5206 | stopos purge |
---|
5207 | \end_layout |
---|
5208 | |
---|
5209 | \begin_layout Plain Layout |
---|
5210 | |
---|
5211 | \end_layout |
---|
5212 | |
---|
5213 | \begin_layout Plain Layout |
---|
5214 | |
---|
5215 | \end_layout |
---|
5216 | |
---|
5217 | \begin_layout Plain Layout |
---|
5218 | |
---|
5219 | FILES |
---|
5220 | \end_layout |
---|
5221 | |
---|
5222 | \begin_layout Plain Layout |
---|
5223 | |
---|
5224 | $HOME/.stopos/id |
---|
5225 | \end_layout |
---|
5226 | |
---|
5227 | \begin_layout Plain Layout |
---|
5228 | |
---|
5229 | This file is set by stopos to store an unique id, which, |
---|
5230 | \end_layout |
---|
5231 | |
---|
5232 | \begin_layout Plain Layout |
---|
5233 | |
---|
5234 | together with the login name, will be used to identify which |
---|
5235 | \end_layout |
---|
5236 | |
---|
5237 | \begin_layout Plain Layout |
---|
5238 | |
---|
5239 | pools are yours. |
---|
5240 | \end_layout |
---|
5241 | |
---|
5242 | \begin_layout Plain Layout |
---|
5243 | |
---|
5244 | \end_layout |
---|
5245 | |
---|
5246 | \begin_layout Plain Layout |
---|
5247 | |
---|
5248 | SEE ALSO |
---|
5249 | \end_layout |
---|
5250 | |
---|
5251 | \begin_layout Plain Layout |
---|
5252 | |
---|
5253 | sara-get-mem-size(1), sara-get-num-cores(1), stoposclient(1), |
---|
5254 | \end_layout |
---|
5255 | |
---|
5256 | \begin_layout Plain Layout |
---|
5257 | |
---|
5258 | stoposdump(1) |
---|
5259 | \end_layout |
---|
5260 | |
---|
5261 | \begin_layout Plain Layout |
---|
5262 | |
---|
5263 | \end_layout |
---|
5264 | |
---|
5265 | \begin_layout Plain Layout |
---|
5266 | |
---|
5267 | AUTHORS |
---|
5268 | \end_layout |
---|
5269 | |
---|
5270 | \begin_layout Plain Layout |
---|
5271 | |
---|
5272 | Willem Vermin |
---|
5273 | \end_layout |
---|
5274 | |
---|
5275 | \begin_layout Plain Layout |
---|
5276 | |
---|
5277 | \end_layout |
---|
5278 | |
---|
5279 | \begin_layout Plain Layout |
---|
5280 | |
---|
5281 | BUGS |
---|
5282 | \end_layout |
---|
5283 | |
---|
5284 | \begin_layout Plain Layout |
---|
5285 | |
---|
5286 | No bugs known yet. |
---|
5287 | \end_layout |
---|
5288 | |
---|
5289 | \begin_layout Plain Layout |
---|
5290 | |
---|
5291 | \end_layout |
---|
5292 | |
---|
5293 | \begin_layout Plain Layout |
---|
5294 | |
---|
5295 | \end_layout |
---|
5296 | |
---|
5297 | \begin_layout Plain Layout |
---|
5298 | |
---|
5299 | \end_layout |
---|
5300 | |
---|
5301 | \begin_layout Plain Layout |
---|
5302 | |
---|
5303 | STOPOS(1) |
---|
5304 | \end_layout |
---|
5305 | |
---|
5306 | \begin_layout Plain Layout |
---|
5307 | |
---|
5308 | \end_layout |
---|
5309 | |
---|
5310 | \end_inset |
---|
5311 | |
---|
5312 | |
---|
5313 | \end_layout |
---|
5314 | |
---|
5315 | \end_body |
---|
5316 | \end_document |
---|