1 | #!/usr/bin/env python |
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2 | # |
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3 | # This file is part of Jobmonarch |
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4 | # |
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5 | # Copyright (C) 2006-2013 Ramon Bastiaans |
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6 | # |
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7 | # Jobmonarch is free software; you can redistribute it and/or modify |
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8 | # it under the terms of the GNU General Public License as published by |
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9 | # the Free Software Foundation; either version 2 of the License, or |
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10 | # (at your option) any later version. |
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11 | # |
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12 | # Jobmonarch is distributed in the hope that it will be useful, |
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13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | # GNU General Public License for more details. |
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16 | # |
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17 | # You should have received a copy of the GNU General Public License |
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18 | # along with this program; if not, write to the Free Software |
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19 | # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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20 | # |
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21 | # SVN $Id: jobarchived.py 829 2013-04-12 13:49:35Z ramonb $ |
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22 | # |
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23 | |
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24 | import getopt, syslog, ConfigParser, sys |
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25 | |
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26 | VERSION='1.0' |
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27 | |
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28 | def usage( ver ): |
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29 | |
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30 | print 'jobarchived %s' %VERSION |
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31 | |
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32 | if ver: |
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33 | return 0 |
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34 | |
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35 | print |
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36 | print 'Purpose:' |
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37 | print ' The Job Archive Daemon (jobarchived) stores batch job information in a SQL database' |
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38 | print ' and node statistics in a RRD archive' |
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39 | print |
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40 | print 'Usage: jobarchived [OPTIONS]' |
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41 | print |
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42 | print ' -c, --config=FILE The configuration file to use (default: /etc/jobarchived.conf)' |
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43 | print ' -p, --pidfile=FILE Use pid file to store the process id' |
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44 | print ' -h, --help Print help and exit' |
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45 | print ' -v, --version Print version and exit' |
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46 | print |
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47 | |
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48 | def processArgs( args ): |
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49 | |
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50 | SHORT_L = 'p:hvc:' |
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51 | LONG_L = [ 'help', 'config=', 'pidfile=', 'version' ] |
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52 | |
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53 | config_filename = '/etc/jobarchived.conf' |
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54 | |
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55 | global PIDFILE |
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56 | |
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57 | PIDFILE = None |
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58 | |
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59 | try: |
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60 | |
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61 | opts, args = getopt.getopt( args, SHORT_L, LONG_L ) |
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62 | |
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63 | except getopt.error, detail: |
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64 | |
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65 | print detail |
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66 | sys.exit(1) |
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67 | |
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68 | for opt, value in opts: |
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69 | |
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70 | if opt in [ '--config', '-c' ]: |
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71 | |
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72 | config_filename = value |
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73 | |
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74 | if opt in [ '--pidfile', '-p' ]: |
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75 | |
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76 | PIDFILE = value |
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77 | |
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78 | if opt in [ '--help', '-h' ]: |
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79 | |
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80 | usage( False ) |
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81 | sys.exit( 0 ) |
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82 | |
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83 | if opt in [ '--version', '-v' ]: |
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84 | |
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85 | usage( True ) |
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86 | sys.exit( 0 ) |
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87 | |
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88 | try: |
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89 | return loadConfig( config_filename ) |
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90 | |
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91 | except ConfigParser.NoOptionError, detail: |
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92 | |
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93 | print detail |
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94 | sys.exit( 1 ) |
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95 | |
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96 | def loadConfig( filename ): |
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97 | |
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98 | def getlist( cfg_string ): |
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99 | |
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100 | my_list = [ ] |
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101 | |
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102 | for item_txt in cfg_string.split( ',' ): |
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103 | |
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104 | sep_char = None |
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105 | |
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106 | item_txt = item_txt.strip() |
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107 | |
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108 | for s_char in [ "'", '"' ]: |
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109 | |
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110 | if item_txt.find( s_char ) != -1: |
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111 | |
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112 | if item_txt.count( s_char ) != 2: |
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113 | |
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114 | print 'Missing quote: %s' %item_txt |
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115 | sys.exit( 1 ) |
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116 | |
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117 | else: |
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118 | |
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119 | sep_char = s_char |
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120 | break |
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121 | |
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122 | if sep_char: |
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123 | |
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124 | item_txt = item_txt.split( sep_char )[1] |
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125 | |
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126 | my_list.append( item_txt ) |
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127 | |
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128 | return my_list |
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129 | |
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130 | cfg = ConfigParser.ConfigParser() |
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131 | |
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132 | cfg.read( filename ) |
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133 | |
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134 | global DEBUG_LEVEL, USE_SYSLOG, SYSLOG_LEVEL, SYSLOG_FACILITY, GMETAD_CONF, ARCHIVE_XMLSOURCE |
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135 | global ARCHIVE_DATASOURCES, ARCHIVE_PATH, ARCHIVE_HOURS_PER_RRD, ARCHIVE_EXCLUDE_METRICS |
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136 | global JOB_SQL_DBASE, DAEMONIZE, RRDTOOL, JOB_TIMEOUT, MODRRDTOOL, JOB_SQL_PASSWORD, JOB_SQL_USER |
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137 | |
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138 | ARCHIVE_PATH = cfg.get( 'DEFAULT', 'ARCHIVE_PATH' ) |
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139 | |
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140 | ARCHIVE_HOURS_PER_RRD = cfg.getint( 'DEFAULT', 'ARCHIVE_HOURS_PER_RRD' ) |
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141 | |
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142 | DEBUG_LEVEL = cfg.getint( 'DEFAULT', 'DEBUG_LEVEL' ) |
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143 | |
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144 | USE_SYSLOG = cfg.getboolean( 'DEFAULT', 'USE_SYSLOG' ) |
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145 | |
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146 | SYSLOG_LEVEL = cfg.getint( 'DEFAULT', 'SYSLOG_LEVEL' ) |
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147 | |
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148 | MODRRDTOOL = False |
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149 | |
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150 | try: |
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151 | global rrdtool |
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152 | import rrdtool |
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153 | |
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154 | MODRRDTOOL = True |
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155 | |
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156 | except ImportError: |
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157 | |
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158 | MODRRDTOOL = False |
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159 | |
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160 | print "ERROR: py-rrdtool import FAILED: failing back to DEPRECATED use of rrdtool binary. This will slow down jobarchived significantly!" |
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161 | |
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162 | RRDTOOL = cfg.get( 'DEFAULT', 'RRDTOOL' ) |
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163 | |
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164 | try: |
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165 | |
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166 | SYSLOG_FACILITY = eval( 'syslog.LOG_' + cfg.get( 'DEFAULT', 'SYSLOG_FACILITY' ) ) |
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167 | |
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168 | except AttributeError, detail: |
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169 | |
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170 | print 'Unknown syslog facility' |
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171 | sys.exit( 1 ) |
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172 | |
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173 | GMETAD_CONF = cfg.get( 'DEFAULT', 'GMETAD_CONF' ) |
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174 | |
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175 | ARCHIVE_XMLSOURCE = cfg.get( 'DEFAULT', 'ARCHIVE_XMLSOURCE' ) |
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176 | |
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177 | ARCHIVE_DATASOURCES = getlist( cfg.get( 'DEFAULT', 'ARCHIVE_DATASOURCES' ) ) |
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178 | |
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179 | ARCHIVE_EXCLUDE_METRICS = getlist( cfg.get( 'DEFAULT', 'ARCHIVE_EXCLUDE_METRICS' ) ) |
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180 | |
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181 | JOB_SQL_DBASE = cfg.get( 'DEFAULT', 'JOB_SQL_DBASE' ) |
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182 | JOB_SQL_USER = cfg.get( 'DEFAULT', 'JOB_SQL_USER' ) |
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183 | JOB_SQL_PASSWORD = cfg.get( 'DEFAULT', 'JOB_SQL_PASSWORD' ) |
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184 | |
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185 | JOB_TIMEOUT = cfg.getint( 'DEFAULT', 'JOB_TIMEOUT' ) |
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186 | |
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187 | DAEMONIZE = cfg.getboolean( 'DEFAULT', 'DAEMONIZE' ) |
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188 | |
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189 | |
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190 | return True |
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191 | |
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192 | # What XML data types not to store |
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193 | # |
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194 | UNSUPPORTED_ARCHIVE_TYPES = [ 'string' ] |
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195 | |
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196 | # Maximum time (in seconds) a parsethread may run |
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197 | # |
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198 | PARSE_TIMEOUT = 60 |
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199 | |
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200 | # Maximum time (in seconds) a storethread may run |
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201 | # |
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202 | STORE_TIMEOUT = 360 |
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203 | |
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204 | """ |
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205 | The Job Archiving Daemon |
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206 | """ |
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207 | |
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208 | from types import * |
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209 | |
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210 | import xml.sax, xml.sax.handler, socket, string, os, os.path, time, thread, threading, random, re |
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211 | |
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212 | try: |
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213 | import psycopg2 |
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214 | |
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215 | except ImportError, details: |
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216 | |
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217 | print "FATAL ERROR: psycopg2 python module not found" |
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218 | sys.exit( 1 ) |
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219 | |
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220 | class InitVars: |
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221 | Vars = {} |
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222 | |
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223 | def __init__(self, **key_arg): |
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224 | for (key, value) in key_arg.items(): |
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225 | if value: |
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226 | self.Vars[key] = value |
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227 | else: |
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228 | self.Vars[key] = None |
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229 | |
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230 | def __call__(self, *key): |
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231 | key = "%s" % key |
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232 | return self.Vars[key] |
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233 | |
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234 | def __getitem__(self, key): |
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235 | return self.Vars[key] |
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236 | |
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237 | def __repr__(self): |
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238 | return repr(self.Vars) |
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239 | |
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240 | def keys(self): |
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241 | barf = map(None, self.Vars.keys()) |
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242 | return barf |
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243 | |
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244 | def values(self): |
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245 | barf = map(None, self.Vars.values()) |
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246 | return barf |
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247 | |
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248 | def has_key(self, key): |
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249 | if self.Vars.has_key(key): |
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250 | return 1 |
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251 | else: |
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252 | return 0 |
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253 | |
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254 | class DBError(Exception): |
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255 | def __init__(self, msg=''): |
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256 | self.msg = msg |
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257 | Exception.__init__(self, msg) |
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258 | def __repr__(self): |
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259 | return self.msg |
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260 | __str__ = __repr__ |
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261 | |
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262 | # |
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263 | # Class to connect to a database |
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264 | # and return the queury in a list or dictionairy. |
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265 | # |
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266 | class DB: |
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267 | def __init__(self, db_vars): |
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268 | |
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269 | self.dict = db_vars |
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270 | |
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271 | if self.dict.has_key('User'): |
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272 | self.user = self.dict['User'] |
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273 | else: |
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274 | self.user = 'postgres' |
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275 | |
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276 | if self.dict.has_key('Host'): |
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277 | self.host = self.dict['Host'] |
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278 | else: |
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279 | self.host = 'localhost' |
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280 | |
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281 | if self.dict.has_key('Password'): |
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282 | self.passwd = self.dict['Password'] |
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283 | else: |
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284 | self.passwd = '' |
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285 | |
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286 | if self.dict.has_key('DataBaseName'): |
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287 | self.db = self.dict['DataBaseName'] |
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288 | else: |
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289 | self.db = 'jobarchive' |
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290 | |
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291 | # connect_string = 'host:port:database:user:password: |
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292 | dsn = "host='%s' dbname='%s' user='%s' password='%s'" %(self.host, self.db, self.user, self.passwd) |
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293 | |
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294 | try: |
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295 | self.SQL = psycopg2.connect(dsn) |
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296 | except psycopg2.Error, details: |
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297 | str = "%s" %details |
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298 | raise DBError(str) |
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299 | |
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300 | def __repr__(self): |
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301 | return repr(self.result) |
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302 | |
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303 | def __nonzero__(self): |
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304 | return not(self.result == None) |
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305 | |
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306 | def __len__(self): |
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307 | return len(self.result) |
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308 | |
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309 | def __getitem__(self,i): |
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310 | return self.result[i] |
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311 | |
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312 | def __getslice__(self,i,j): |
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313 | return self.result[i:j] |
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314 | |
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315 | def Get(self, q_str): |
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316 | c = self.SQL.cursor() |
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317 | try: |
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318 | c.execute(q_str) |
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319 | result = c.fetchall() |
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320 | except psycopg2.Error, details: |
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321 | c.close() |
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322 | str = "%s" %details |
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323 | raise DBError(str) |
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324 | |
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325 | c.close() |
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326 | return result |
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327 | |
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328 | def Set(self, q_str): |
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329 | c = self.SQL.cursor() |
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330 | try: |
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331 | c.execute(q_str) |
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332 | |
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333 | except psycopg2.Error, details: |
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334 | c.close() |
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335 | str = "%s" %details |
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336 | raise DBError(str) |
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337 | |
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338 | c.close() |
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339 | return True |
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340 | |
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341 | def Commit(self): |
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342 | |
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343 | return self.SQL.commit() |
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344 | |
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345 | def Rollback( self ): |
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346 | |
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347 | return self.SQL.rollback() |
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348 | |
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349 | class DataSQLStore: |
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350 | |
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351 | db_vars = None |
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352 | dbc = None |
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353 | |
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354 | def __init__( self, hostname, database ): |
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355 | |
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356 | global JOB_SQL_USER, JOB_SQL_PASSWORD |
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357 | |
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358 | self.db_vars = InitVars(DataBaseName=database, |
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359 | User=JOB_SQL_USER, |
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360 | Host=hostname, |
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361 | Password=JOB_SQL_PASSWORD, |
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362 | Dictionary='true') |
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363 | |
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364 | try: |
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365 | self.dbc = DB(self.db_vars) |
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366 | except DBError, details: |
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367 | debug_msg( 0, 'FATAL ERROR: Unable to connect to database!: ' +str(details) ) |
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368 | sys.exit(1) |
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369 | |
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370 | def setDatabase(self, statement): |
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371 | |
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372 | ret = self.doDatabase('set', statement) |
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373 | return ret |
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374 | |
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375 | def getDatabase(self, statement): |
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376 | |
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377 | ret = self.doDatabase('get', statement) |
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378 | return ret |
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379 | |
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380 | def doCommit( self ): |
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381 | |
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382 | return self.dbc.Commit() |
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383 | |
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384 | def doRollback( self ): |
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385 | |
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386 | return self.dbc.Rollback() |
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387 | |
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388 | def doDatabase(self, type, statement): |
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389 | |
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390 | debug_msg( 10, 'doDatabase(): %s: %s' %(type, statement) ) |
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391 | try: |
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392 | if type == 'set': |
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393 | result = self.dbc.Set( statement ) |
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394 | elif type == 'get': |
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395 | result = self.dbc.Get( statement ) |
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396 | |
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397 | except DBError, detail: |
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398 | operation = statement.split(' ')[0] |
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399 | debug_msg( 0, 'ERROR: ' +operation+ ' on database failed while doing ['+statement+'] full msg: '+str(detail) ) |
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400 | return False |
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401 | |
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402 | debug_msg( 10, 'doDatabase(): result: %s' %(result) ) |
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403 | return result |
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404 | |
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405 | def getJobNodeId( self, job_id, node_id ): |
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406 | |
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407 | id = self.getDatabase( "SELECT job_id,node_id FROM job_nodes WHERE job_id = '%s' AND node_id = '%s'" %(job_id, node_id) ) |
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408 | if not id: |
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409 | return False |
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410 | |
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411 | if len( id ) > 0: |
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412 | |
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413 | if len( id[0] ) > 0 and id[0] != '': |
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414 | |
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415 | return True |
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416 | |
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417 | return False |
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418 | |
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419 | def getNodeId( self, hostname ): |
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420 | |
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421 | id = self.getDatabase( "SELECT node_id FROM nodes WHERE node_hostname = '%s'" %hostname ) |
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422 | |
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423 | if len( id ) > 0: |
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424 | |
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425 | id = id[0][0] |
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426 | |
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427 | return id |
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428 | else: |
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429 | return None |
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430 | |
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431 | def getNodeIds( self, hostnames ): |
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432 | |
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433 | ids = [ ] |
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434 | |
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435 | for node in hostnames: |
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436 | |
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437 | id = self.getNodeId( node ) |
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438 | |
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439 | if id: |
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440 | ids.append( id ) |
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441 | |
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442 | return ids |
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443 | |
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444 | def getJobId( self, jobid ): |
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445 | |
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446 | id = self.getDatabase( "SELECT job_id FROM jobs WHERE job_id = '%s'" %jobid ) |
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447 | |
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448 | if id: |
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449 | id = id[0][0] |
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450 | |
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451 | return id |
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452 | else: |
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453 | return None |
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454 | |
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455 | def addJob( self, job_id, jobattrs ): |
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456 | |
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457 | if not self.getJobId( job_id ): |
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458 | |
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459 | return self.mutateJob( 'insert', job_id, jobattrs ) |
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460 | else: |
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461 | return self.mutateJob( 'update', job_id, jobattrs ) |
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462 | |
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463 | def mutateJob( self, action, job_id, jobattrs ): |
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464 | |
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465 | job_values = [ 'name', 'queue', 'owner', 'requested_time', 'requested_memory', 'ppn', 'status', 'start_timestamp', 'stop_timestamp' ] |
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466 | |
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467 | insert_col_str = 'job_id' |
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468 | insert_val_str = "'%s'" %job_id |
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469 | update_str = None |
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470 | |
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471 | debug_msg( 10, 'mutateJob(): %s %s' %(action,job_id)) |
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472 | |
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473 | ids = [ ] |
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474 | |
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475 | for valname, value in jobattrs.items(): |
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476 | |
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477 | if valname in job_values and value != '': |
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478 | |
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479 | column_name = 'job_' + valname |
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480 | |
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481 | if action == 'insert': |
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482 | |
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483 | if not insert_col_str: |
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484 | insert_col_str = column_name |
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485 | else: |
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486 | insert_col_str = insert_col_str + ',' + column_name |
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487 | |
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488 | if not insert_val_str: |
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489 | insert_val_str = value |
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490 | else: |
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491 | insert_val_str = insert_val_str + ",'%s'" %value |
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492 | |
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493 | elif action == 'update': |
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494 | |
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495 | if not update_str: |
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496 | update_str = "%s='%s'" %(column_name, value) |
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497 | else: |
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498 | update_str = update_str + ",%s='%s'" %(column_name, value) |
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499 | |
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500 | elif valname == 'nodes' and value: |
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501 | |
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502 | node_valid = 1 |
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503 | |
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504 | if len(value) == 1: |
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505 | |
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506 | if jobattrs['status'] == 'Q': |
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507 | |
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508 | node_valid = 0 |
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509 | |
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510 | else: |
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511 | |
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512 | node_valid = 0 |
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513 | |
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514 | for node_char in str(value[0]): |
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515 | |
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516 | if string.find( string.digits, node_char ) != -1 and not node_valid: |
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517 | |
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518 | node_valid = 1 |
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519 | |
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520 | if node_valid: |
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521 | |
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522 | ids = self.addNodes( value, jobattrs['domain'] ) |
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523 | |
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524 | if action == 'insert': |
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525 | |
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526 | db_ret = self.setDatabase( "INSERT INTO jobs ( %s ) VALUES ( %s )" %( insert_col_str, insert_val_str ) ) |
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527 | |
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528 | elif action == 'update': |
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529 | |
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530 | db_ret = self.setDatabase( "UPDATE jobs SET %s WHERE job_id='%s'" %(update_str, job_id) ) |
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531 | |
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532 | if len( ids ) > 0: |
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533 | self.addJobNodes( job_id, ids ) |
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534 | |
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535 | return db_ret |
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536 | |
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537 | def addNodes( self, hostnames, domain ): |
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538 | |
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539 | ids = [ ] |
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540 | |
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541 | for node in hostnames: |
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542 | |
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543 | node = '%s.%s' %( node, domain ) |
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544 | id = self.getNodeId( node ) |
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545 | |
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546 | if not id: |
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547 | self.setDatabase( "INSERT INTO nodes ( node_hostname ) VALUES ( '%s' )" %node ) |
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548 | id = self.getNodeId( node ) |
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549 | |
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550 | ids.append( id ) |
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551 | |
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552 | return ids |
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553 | |
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554 | def addJobNodes( self, jobid, nodes ): |
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555 | |
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556 | for node in nodes: |
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557 | |
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558 | if not self.getJobNodeId( jobid, node ): |
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559 | |
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560 | self.addJobNode( jobid, node ) |
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561 | |
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562 | def addJobNode( self, jobid, nodeid ): |
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563 | |
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564 | self.setDatabase( "INSERT INTO job_nodes (job_id,node_id) VALUES ( '%s',%s )" %(jobid, nodeid) ) |
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565 | |
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566 | def storeJobInfo( self, jobid, jobattrs ): |
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567 | |
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568 | return self.addJob( jobid, jobattrs ) |
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569 | |
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570 | def checkStaleJobs( self ): |
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571 | |
---|
572 | # Locate all jobs in the database that are not set to finished |
---|
573 | # |
---|
574 | q = "SELECT * from jobs WHERE job_status != 'F'" |
---|
575 | |
---|
576 | r = self.getDatabase( q ) |
---|
577 | |
---|
578 | if len( r ) == 0: |
---|
579 | |
---|
580 | return None |
---|
581 | |
---|
582 | cleanjobs = [ ] |
---|
583 | timeoutjobs = [ ] |
---|
584 | |
---|
585 | jobtimeout_sec = JOB_TIMEOUT * (60 * 60) |
---|
586 | cur_time = time.time() |
---|
587 | |
---|
588 | for row in r: |
---|
589 | |
---|
590 | job_id = row[0] |
---|
591 | job_requested_time = row[4] |
---|
592 | job_status = row[7] |
---|
593 | job_start_timestamp = row[8] |
---|
594 | |
---|
595 | # If it was set to queued and we didn't see it started |
---|
596 | # there's not point in keeping it around |
---|
597 | # |
---|
598 | if job_status == 'Q' or not job_start_timestamp: |
---|
599 | |
---|
600 | cleanjobs.append( job_id ) |
---|
601 | |
---|
602 | else: |
---|
603 | |
---|
604 | start_timestamp = int( job_start_timestamp ) |
---|
605 | |
---|
606 | # If it was set to running longer than JOB_TIMEOUT |
---|
607 | # close the job: it probably finished while we were not running |
---|
608 | # |
---|
609 | if ( cur_time - start_timestamp ) > jobtimeout_sec: |
---|
610 | |
---|
611 | if job_requested_time: |
---|
612 | |
---|
613 | rtime_epoch = reqtime2epoch( job_requested_time ) |
---|
614 | else: |
---|
615 | rtime_epoch = None |
---|
616 | |
---|
617 | timeoutjobs.append( (job_id, job_start_timestamp, rtime_epoch) ) |
---|
618 | |
---|
619 | debug_msg( 1, 'Found ' + str( len( cleanjobs ) ) + ' stale jobs in database: deleting entries' ) |
---|
620 | |
---|
621 | # Purge these from database |
---|
622 | # |
---|
623 | for j in cleanjobs: |
---|
624 | |
---|
625 | q = "DELETE FROM jobs WHERE job_id = '" + str( j ) + "'" |
---|
626 | self.setDatabase( q ) |
---|
627 | |
---|
628 | debug_msg( 1, 'Found ' + str( len( timeoutjobs ) ) + ' timed out jobs in database: closing entries' ) |
---|
629 | |
---|
630 | # Close these jobs in the database |
---|
631 | # update the stop_timestamp to: start_timestamp + requested wallclock |
---|
632 | # and set state: finished |
---|
633 | # |
---|
634 | for j in timeoutjobs: |
---|
635 | |
---|
636 | ( i, s, r ) = j |
---|
637 | |
---|
638 | if r: |
---|
639 | new_end_timestamp = int( s ) + r |
---|
640 | |
---|
641 | q = "UPDATE jobs SET job_status='F',job_stop_timestamp = '" + str( new_end_timestamp ) + "' WHERE job_id = '" + str(i) + "'" |
---|
642 | self.setDatabase( q ) |
---|
643 | |
---|
644 | class RRDMutator: |
---|
645 | """A class for performing RRD mutations""" |
---|
646 | |
---|
647 | binary = None |
---|
648 | |
---|
649 | def __init__( self, binary=None ): |
---|
650 | """Set alternate binary if supplied""" |
---|
651 | |
---|
652 | if binary: |
---|
653 | self.binary = binary |
---|
654 | |
---|
655 | def create( self, filename, args ): |
---|
656 | """Create a new rrd with args""" |
---|
657 | |
---|
658 | global MODRRDTOOL |
---|
659 | |
---|
660 | if MODRRDTOOL: |
---|
661 | return self.perform( 'create', filename, args ) |
---|
662 | else: |
---|
663 | return self.perform( 'create', '"' + filename + '"', args ) |
---|
664 | |
---|
665 | def update( self, filename, args ): |
---|
666 | """Update a rrd with args""" |
---|
667 | |
---|
668 | global MODRRDTOOL |
---|
669 | |
---|
670 | if MODRRDTOOL: |
---|
671 | return self.perform( 'update', filename, args ) |
---|
672 | else: |
---|
673 | return self.perform( 'update', '"' + filename + '"', args ) |
---|
674 | |
---|
675 | def grabLastUpdate( self, filename ): |
---|
676 | """Determine the last update time of filename rrd""" |
---|
677 | |
---|
678 | global MODRRDTOOL |
---|
679 | |
---|
680 | last_update = 0 |
---|
681 | |
---|
682 | # Use the py-rrdtool module if it's available on this system |
---|
683 | # |
---|
684 | if MODRRDTOOL: |
---|
685 | |
---|
686 | debug_msg( 8, 'rrdtool.info( ' + filename + ' )' ) |
---|
687 | |
---|
688 | rrd_header = { } |
---|
689 | |
---|
690 | try: |
---|
691 | rrd_header = rrdtool.info( filename ) |
---|
692 | except rrdtool.error, msg: |
---|
693 | debug_msg( 8, str( msg ) ) |
---|
694 | |
---|
695 | if rrd_header.has_key( 'last_update' ): |
---|
696 | return last_update |
---|
697 | else: |
---|
698 | return 0 |
---|
699 | |
---|
700 | # For backwards compatiblity: use the rrdtool binary if py-rrdtool is unavailable |
---|
701 | # DEPRECATED (slow!) |
---|
702 | # |
---|
703 | else: |
---|
704 | debug_msg( 8, self.binary + ' info ' + filename ) |
---|
705 | |
---|
706 | my_pipe = os.popen( self.binary + ' info "' + filename + '"' ) |
---|
707 | |
---|
708 | for line in my_pipe.readlines(): |
---|
709 | |
---|
710 | if line.find( 'last_update') != -1: |
---|
711 | |
---|
712 | last_update = line.split( ' = ' )[1] |
---|
713 | |
---|
714 | if my_pipe: |
---|
715 | |
---|
716 | my_pipe.close() |
---|
717 | |
---|
718 | if last_update: |
---|
719 | return last_update |
---|
720 | else: |
---|
721 | return 0 |
---|
722 | |
---|
723 | |
---|
724 | def perform( self, action, filename, args ): |
---|
725 | """Perform action on rrd filename with args""" |
---|
726 | |
---|
727 | global MODRRDTOOL |
---|
728 | |
---|
729 | arg_string = None |
---|
730 | |
---|
731 | if type( args ) is not ListType: |
---|
732 | debug_msg( 8, 'Arguments needs to be of type List' ) |
---|
733 | return 1 |
---|
734 | |
---|
735 | for arg in args: |
---|
736 | |
---|
737 | if not arg_string: |
---|
738 | |
---|
739 | arg_string = arg |
---|
740 | else: |
---|
741 | arg_string = arg_string + ' ' + arg |
---|
742 | |
---|
743 | if MODRRDTOOL: |
---|
744 | |
---|
745 | debug_msg( 8, 'rrdtool.' + action + "( " + filename + ' ' + arg_string + ")" ) |
---|
746 | |
---|
747 | try: |
---|
748 | debug_msg( 8, "filename '" + str(filename) + "' type "+ str(type(filename)) + " args " + str( args ) ) |
---|
749 | |
---|
750 | if action == 'create': |
---|
751 | |
---|
752 | rrdtool.create( str( filename ), *args ) |
---|
753 | |
---|
754 | elif action == 'update': |
---|
755 | |
---|
756 | rrdtool.update( str( filename ), *args ) |
---|
757 | |
---|
758 | except rrdtool.error, msg: |
---|
759 | |
---|
760 | error_msg = str( msg ) |
---|
761 | debug_msg( 8, error_msg ) |
---|
762 | return 1 |
---|
763 | |
---|
764 | else: |
---|
765 | |
---|
766 | debug_msg( 8, self.binary + ' ' + action + ' ' + filename + ' ' + arg_string ) |
---|
767 | |
---|
768 | cmd = os.popen( self.binary + ' ' + action + ' ' + filename + ' ' + arg_string ) |
---|
769 | lines = cmd.readlines() |
---|
770 | |
---|
771 | cmd.close() |
---|
772 | |
---|
773 | for line in lines: |
---|
774 | |
---|
775 | if line.find( 'ERROR' ) != -1: |
---|
776 | |
---|
777 | error_msg = string.join( line.split( ' ' )[1:] ) |
---|
778 | debug_msg( 8, error_msg ) |
---|
779 | return 1 |
---|
780 | |
---|
781 | return 0 |
---|
782 | |
---|
783 | class XMLProcessor: |
---|
784 | """Skeleton class for XML processor's""" |
---|
785 | |
---|
786 | def run( self ): |
---|
787 | """Do main processing of XML here""" |
---|
788 | |
---|
789 | pass |
---|
790 | |
---|
791 | class JobXMLProcessor( XMLProcessor ): |
---|
792 | """Main class for processing XML and acting with it""" |
---|
793 | |
---|
794 | def __init__( self, XMLSource, DataStore ): |
---|
795 | """Setup initial XML connection and handlers""" |
---|
796 | |
---|
797 | self.myXMLSource = XMLSource |
---|
798 | self.myXMLHandler = JobXMLHandler( DataStore ) |
---|
799 | self.myXMLError = XMLErrorHandler() |
---|
800 | |
---|
801 | self.config = GangliaConfigParser( GMETAD_CONF ) |
---|
802 | |
---|
803 | self.kill_thread = False |
---|
804 | |
---|
805 | def killThread( self ): |
---|
806 | |
---|
807 | self.kill_thread = True |
---|
808 | |
---|
809 | def run( self ): |
---|
810 | """Main XML processing""" |
---|
811 | |
---|
812 | debug_msg( 1, 'job_xml_thread(): started.' ) |
---|
813 | |
---|
814 | while( 1 ): |
---|
815 | |
---|
816 | debug_msg( 1, 'job_xml_thread(): Retrieving XML data..' ) |
---|
817 | |
---|
818 | my_data = self.myXMLSource.getData() |
---|
819 | |
---|
820 | debug_msg( 1, 'job_xml_thread(): Done retrieving: data size %d' %len(my_data) ) |
---|
821 | |
---|
822 | if my_data: |
---|
823 | debug_msg( 1, 'job_xml_thread(): Parsing XML..' ) |
---|
824 | |
---|
825 | xml.sax.parseString( my_data, self.myXMLHandler, self.myXMLError ) |
---|
826 | |
---|
827 | debug_msg( 1, 'job_xml_thread(): Done parsing.' ) |
---|
828 | else: |
---|
829 | debug_msg( 1, 'job_xml_thread(): Got no data.' ) |
---|
830 | |
---|
831 | if self.kill_thread: |
---|
832 | |
---|
833 | debug_msg( 1, 'job_xml_thread(): killed.' ) |
---|
834 | return None |
---|
835 | |
---|
836 | debug_msg( 1, 'job_xml_thread(): Sleeping.. (%ss)' %(str( self.config.getLowestInterval() ) ) ) |
---|
837 | time.sleep( self.config.getLowestInterval() ) |
---|
838 | |
---|
839 | class JobXMLHandler( xml.sax.handler.ContentHandler ): |
---|
840 | """Parse Job's jobinfo XML from our plugin""" |
---|
841 | |
---|
842 | def __init__( self, datastore ): |
---|
843 | |
---|
844 | self.ds = datastore |
---|
845 | self.jobs_processed = [ ] |
---|
846 | self.jobs_to_store = [ ] |
---|
847 | self.jobAttrs = { } |
---|
848 | self.jobAttrsSaved = { } |
---|
849 | |
---|
850 | debug_msg( 1, "XML: Handler created" ) |
---|
851 | |
---|
852 | def startDocument( self ): |
---|
853 | |
---|
854 | self.jobs_processed = [ ] |
---|
855 | self.heartbeat = 0 |
---|
856 | self.elementct = 0 |
---|
857 | |
---|
858 | debug_msg( 1, "XML: Start document" ) |
---|
859 | |
---|
860 | def startElement( self, name, attrs ): |
---|
861 | """ |
---|
862 | This XML will be all gmetric XML |
---|
863 | so there will be no specific start/end element |
---|
864 | just one XML statement with all info |
---|
865 | """ |
---|
866 | |
---|
867 | jobinfo = { } |
---|
868 | |
---|
869 | self.elementct += 1 |
---|
870 | |
---|
871 | if name == 'CLUSTER': |
---|
872 | |
---|
873 | self.clustername = str( attrs.get( 'NAME', "" ) ) |
---|
874 | |
---|
875 | elif name == 'METRIC' and self.clustername in ARCHIVE_DATASOURCES: |
---|
876 | |
---|
877 | metricname = str( attrs.get( 'NAME', "" ) ) |
---|
878 | |
---|
879 | if metricname == 'zplugin_monarch_heartbeat': |
---|
880 | |
---|
881 | self.heartbeat = str( attrs.get( 'VAL', "" ) ) |
---|
882 | |
---|
883 | elif metricname.find( 'zplugin_monarch_job' ) != -1: |
---|
884 | |
---|
885 | job_id = metricname.split( 'zplugin_monarch_job_' )[1].split( '_' )[1] |
---|
886 | val = str( attrs.get( 'VAL', "" ) ) |
---|
887 | |
---|
888 | valinfo = val.split( ' ' ) |
---|
889 | |
---|
890 | for myval in valinfo: |
---|
891 | |
---|
892 | if len( myval.split( '=' ) ) > 1: |
---|
893 | |
---|
894 | valname = myval.split( '=' )[0] |
---|
895 | value = myval.split( '=' )[1] |
---|
896 | |
---|
897 | if valname == 'nodes': |
---|
898 | |
---|
899 | value = value.split( ';' ) |
---|
900 | |
---|
901 | jobinfo[ valname ] = value |
---|
902 | |
---|
903 | self.jobAttrs[ job_id ] = jobinfo |
---|
904 | |
---|
905 | self.jobs_processed.append( job_id ) |
---|
906 | |
---|
907 | def endDocument( self ): |
---|
908 | """When all metrics have gone, check if any jobs have finished""" |
---|
909 | |
---|
910 | jobs_finished = [ ] |
---|
911 | |
---|
912 | debug_msg( 1, "XML: Processed "+str(self.elementct)+ " elements - found "+str(len(self.jobs_processed))+" jobs" ) |
---|
913 | |
---|
914 | if self.heartbeat == 0: |
---|
915 | return None |
---|
916 | |
---|
917 | for jobid, jobinfo in self.jobAttrs.items(): |
---|
918 | |
---|
919 | if jobinfo['reported'] != self.heartbeat: |
---|
920 | |
---|
921 | if (jobinfo['status'] != 'R'): |
---|
922 | debug_msg( 1, 'job %s report time %s does not match current heartbeat %s : ignoring job' %(jobid, jobinfo['reported'], self.heartbeat ) ) |
---|
923 | del self.jobAttrs[ jobid ] |
---|
924 | |
---|
925 | if jobid in self.jobs_to_store: |
---|
926 | del self.jobs_to_store[ jobid ] |
---|
927 | |
---|
928 | continue |
---|
929 | |
---|
930 | elif jobid not in self.jobs_processed: |
---|
931 | |
---|
932 | # Was running previous heartbeat but not anymore: must be finished |
---|
933 | self.jobAttrs[ jobid ]['status'] = 'F' |
---|
934 | self.jobAttrs[ jobid ]['stop_timestamp'] = str( self.heartbeat ) |
---|
935 | debug_msg( 1, 'job %s appears to have finished' %jobid ) |
---|
936 | |
---|
937 | jobs_finished.append( jobid ) |
---|
938 | |
---|
939 | if not jobid in self.jobs_to_store: |
---|
940 | self.jobs_to_store.append( jobid ) |
---|
941 | |
---|
942 | continue |
---|
943 | |
---|
944 | elif self.jobAttrsSaved.has_key( jobid ): |
---|
945 | |
---|
946 | # This should pretty much never happen, but hey let's be careful |
---|
947 | # Perhaps if someone altered their job while in queue with qalter |
---|
948 | |
---|
949 | if self.jobinfoChanged( jobid, jobinfo ): |
---|
950 | |
---|
951 | self.jobAttrs[ jobid ]['stop_timestamp'] = '' |
---|
952 | self.jobAttrs[ jobid ] = self.setJobAttrs( self.jobAttrs[ jobid ], jobinfo ) |
---|
953 | |
---|
954 | if not jobid in self.jobs_to_store: |
---|
955 | |
---|
956 | self.jobs_to_store.append( jobid ) |
---|
957 | |
---|
958 | debug_msg( 10, 'jobinfo for job %s has changed' %jobid ) |
---|
959 | else: |
---|
960 | debug_msg( 1, 'new job %s' %jobid ) |
---|
961 | |
---|
962 | if not jobid in self.jobs_to_store: |
---|
963 | |
---|
964 | self.jobs_to_store.append( jobid ) |
---|
965 | |
---|
966 | debug_msg( 1, 'job_xml_thread(): Found %s updated jobs.' %len(self.jobs_to_store) ) |
---|
967 | |
---|
968 | failed_store = [ ] |
---|
969 | succes_store = [ ] |
---|
970 | |
---|
971 | if len( self.jobs_to_store ) > 0: |
---|
972 | |
---|
973 | debug_msg( 1, 'job_xml_thread(): Storing jobs to database..' ) |
---|
974 | |
---|
975 | for n in range( 0, len(self.jobs_to_store ) ): |
---|
976 | |
---|
977 | if len( self.jobs_to_store ) == 0: |
---|
978 | break |
---|
979 | |
---|
980 | jobid = self.jobs_to_store.pop( 0 ) |
---|
981 | |
---|
982 | db_ok = self.ds.storeJobInfo( jobid, self.jobAttrs[ jobid ] ) |
---|
983 | |
---|
984 | if not db_ok: |
---|
985 | |
---|
986 | self.ds.doRollback() |
---|
987 | failed_store.append( jobid ) |
---|
988 | continue |
---|
989 | |
---|
990 | self.ds.doCommit() |
---|
991 | succes_store.append( jobid ) |
---|
992 | |
---|
993 | if not jobid in jobs_finished: |
---|
994 | |
---|
995 | self.jobAttrsSaved[ jobid ] = self.jobAttrs[ jobid ] |
---|
996 | |
---|
997 | elif self.jobAttrsSaved.has_key( jobid ): |
---|
998 | |
---|
999 | del self.jobAttrsSaved[ jobid ] |
---|
1000 | |
---|
1001 | if self.jobAttrs[ jobid ]['status'] == 'F': |
---|
1002 | |
---|
1003 | del self.jobAttrs[ jobid ] |
---|
1004 | |
---|
1005 | result_str = 'succesfully stored: %s jobs' %str(len(succes_store)) |
---|
1006 | |
---|
1007 | if len( failed_store ) > 0: |
---|
1008 | result_str = result_str + ' - failed to store: %s jobs - deferred to next interval' %str(len(failed_store)) |
---|
1009 | |
---|
1010 | debug_msg( 1, 'job_xml_thread(): Done storing. %s' %result_str ) |
---|
1011 | |
---|
1012 | else: |
---|
1013 | debug_msg( 1, 'job_xml_thread(): No jobs to store.' ) |
---|
1014 | |
---|
1015 | self.jobs_processed = [ ] |
---|
1016 | |
---|
1017 | # TODO: once in while check database AND self.jobAttrsSaved for stale jobs |
---|
1018 | |
---|
1019 | def setJobAttrs( self, old, new ): |
---|
1020 | """ |
---|
1021 | Set new job attributes in old, but not lose existing fields |
---|
1022 | if old attributes doesn't have those |
---|
1023 | """ |
---|
1024 | |
---|
1025 | for valname, value in new.items(): |
---|
1026 | old[ valname ] = value |
---|
1027 | |
---|
1028 | return old |
---|
1029 | |
---|
1030 | |
---|
1031 | def jobinfoChanged( self, jobid, jobinfo ): |
---|
1032 | """ |
---|
1033 | Check if jobinfo has changed from jobattrs[jobid] |
---|
1034 | if it's report time is bigger than previous one |
---|
1035 | and it is report time is recent (equal to heartbeat) |
---|
1036 | """ |
---|
1037 | |
---|
1038 | ignore_changes = [ 'reported' ] |
---|
1039 | |
---|
1040 | if self.jobAttrsSaved.has_key( jobid ): |
---|
1041 | |
---|
1042 | for valname, value in jobinfo.items(): |
---|
1043 | |
---|
1044 | if valname not in ignore_changes: |
---|
1045 | |
---|
1046 | if self.jobAttrsSaved[ jobid ].has_key( valname ): |
---|
1047 | |
---|
1048 | if value != self.jobAttrsSaved[ jobid ][ valname ]: |
---|
1049 | |
---|
1050 | if jobinfo['reported'] > self.jobAttrsSaved[ jobid ][ 'reported' ]: |
---|
1051 | |
---|
1052 | debug_msg( 1, "job %s field '%s' changed since saved from: %s to: %s" %( jobid, valname, value, self.jobAttrsSaved[ jobid ][ valname ] ) ) |
---|
1053 | |
---|
1054 | return True |
---|
1055 | |
---|
1056 | else: |
---|
1057 | debug_msg( 1, "job %s did not have field '%s'" %( jobid, valname ) ) |
---|
1058 | return True |
---|
1059 | |
---|
1060 | return False |
---|
1061 | |
---|
1062 | class GangliaXMLHandler( xml.sax.handler.ContentHandler ): |
---|
1063 | """Parse Ganglia's XML""" |
---|
1064 | |
---|
1065 | def __init__( self, config, datastore ): |
---|
1066 | """Setup initial variables and gather info on existing rrd archive""" |
---|
1067 | |
---|
1068 | self.config = config |
---|
1069 | self.clusters = { } |
---|
1070 | self.ds = datastore |
---|
1071 | |
---|
1072 | debug_msg( 1, 'Checking database..' ) |
---|
1073 | |
---|
1074 | global DEBUG_LEVEL |
---|
1075 | |
---|
1076 | if DEBUG_LEVEL <= 2: |
---|
1077 | self.ds.checkStaleJobs() |
---|
1078 | |
---|
1079 | debug_msg( 1, 'Check done.' ) |
---|
1080 | debug_msg( 1, 'Checking rrd archive..' ) |
---|
1081 | self.gatherClusters() |
---|
1082 | debug_msg( 1, 'Check done.' ) |
---|
1083 | |
---|
1084 | def gatherClusters( self ): |
---|
1085 | """Find all existing clusters in archive dir""" |
---|
1086 | |
---|
1087 | archive_dir = check_dir(ARCHIVE_PATH) |
---|
1088 | |
---|
1089 | hosts = [ ] |
---|
1090 | |
---|
1091 | if os.path.exists( archive_dir ): |
---|
1092 | |
---|
1093 | dirlist = os.listdir( archive_dir ) |
---|
1094 | |
---|
1095 | for cfgcluster in ARCHIVE_DATASOURCES: |
---|
1096 | |
---|
1097 | if cfgcluster not in dirlist: |
---|
1098 | |
---|
1099 | # Autocreate a directory for this cluster |
---|
1100 | # assume it is new |
---|
1101 | # |
---|
1102 | cluster_dir = '%s/%s' %( check_dir(ARCHIVE_PATH), cfgcluster ) |
---|
1103 | |
---|
1104 | os.mkdir( cluster_dir ) |
---|
1105 | |
---|
1106 | dirlist.append( cfgcluster ) |
---|
1107 | |
---|
1108 | for item in dirlist: |
---|
1109 | |
---|
1110 | clustername = item |
---|
1111 | |
---|
1112 | if not self.clusters.has_key( clustername ) and clustername in ARCHIVE_DATASOURCES: |
---|
1113 | |
---|
1114 | self.clusters[ clustername ] = RRDHandler( self.config, clustername ) |
---|
1115 | |
---|
1116 | debug_msg( 9, "Found "+str(len(self.clusters.keys()))+" clusters" ) |
---|
1117 | |
---|
1118 | def startElement( self, name, attrs ): |
---|
1119 | """Memorize appropriate data from xml start tags""" |
---|
1120 | |
---|
1121 | if name == 'GANGLIA_XML': |
---|
1122 | |
---|
1123 | self.XMLSource = str( attrs.get( 'SOURCE', "" ) ) |
---|
1124 | self.gangliaVersion = str( attrs.get( 'VERSION', "" ) ) |
---|
1125 | |
---|
1126 | debug_msg( 10, 'Found XML data: source %s version %s' %( self.XMLSource, self.gangliaVersion ) ) |
---|
1127 | |
---|
1128 | elif name == 'GRID': |
---|
1129 | |
---|
1130 | self.gridName = str( attrs.get( 'NAME', "" ) ) |
---|
1131 | self.time = str( attrs.get( 'LOCALTIME', "" ) ) |
---|
1132 | |
---|
1133 | debug_msg( 10, '`-Grid found: %s' %( self.gridName ) ) |
---|
1134 | |
---|
1135 | elif name == 'CLUSTER': |
---|
1136 | |
---|
1137 | self.clusterName = str( attrs.get( 'NAME', "" ) ) |
---|
1138 | self.time = str( attrs.get( 'LOCALTIME', "" ) ) |
---|
1139 | |
---|
1140 | if not self.clusters.has_key( self.clusterName ) and self.clusterName in ARCHIVE_DATASOURCES: |
---|
1141 | |
---|
1142 | self.clusters[ self.clusterName ] = RRDHandler( self.config, self.clusterName ) |
---|
1143 | |
---|
1144 | debug_msg( 10, ' |-Cluster found: %s' %( self.clusterName ) ) |
---|
1145 | |
---|
1146 | elif name == 'HOST' and self.clusterName in ARCHIVE_DATASOURCES: |
---|
1147 | |
---|
1148 | self.hostName = str( attrs.get( 'NAME', "" ) ) |
---|
1149 | self.hostIp = str( attrs.get( 'IP', "" ) ) |
---|
1150 | self.hostReported = str( attrs.get( 'REPORTED', "" ) ) |
---|
1151 | |
---|
1152 | debug_msg( 10, ' | |-Host found: %s - ip %s reported %s' %( self.hostName, self.hostIp, self.hostReported ) ) |
---|
1153 | |
---|
1154 | elif name == 'METRIC' and self.clusterName in ARCHIVE_DATASOURCES: |
---|
1155 | |
---|
1156 | type = str( attrs.get( 'TYPE', "" ) ) |
---|
1157 | |
---|
1158 | exclude_metric = False |
---|
1159 | |
---|
1160 | for ex_metricstr in ARCHIVE_EXCLUDE_METRICS: |
---|
1161 | |
---|
1162 | orig_name = str( attrs.get( 'NAME', "" ) ) |
---|
1163 | |
---|
1164 | if string.lower( orig_name ) == string.lower( ex_metricstr ): |
---|
1165 | |
---|
1166 | exclude_metric = True |
---|
1167 | |
---|
1168 | elif re.match( ex_metricstr, orig_name ): |
---|
1169 | |
---|
1170 | exclude_metric = True |
---|
1171 | |
---|
1172 | if type not in UNSUPPORTED_ARCHIVE_TYPES and not exclude_metric: |
---|
1173 | |
---|
1174 | myMetric = { } |
---|
1175 | myMetric['name'] = str( attrs.get( 'NAME', "" ) ) |
---|
1176 | myMetric['val'] = str( attrs.get( 'VAL', "" ) ) |
---|
1177 | myMetric['time'] = self.hostReported |
---|
1178 | |
---|
1179 | self.clusters[ self.clusterName ].memMetric( self.hostName, myMetric ) |
---|
1180 | |
---|
1181 | debug_msg( 11, ' | | |-metric: %s:%s' %( myMetric['name'], myMetric['val'] ) ) |
---|
1182 | |
---|
1183 | def storeMetrics( self ): |
---|
1184 | """Store metrics of each cluster rrd handler""" |
---|
1185 | |
---|
1186 | for clustername, rrdh in self.clusters.items(): |
---|
1187 | |
---|
1188 | ret = rrdh.storeMetrics() |
---|
1189 | |
---|
1190 | if ret: |
---|
1191 | debug_msg( 9, 'An error occured while storing metrics for cluster %s' %clustername ) |
---|
1192 | return 1 |
---|
1193 | |
---|
1194 | return 0 |
---|
1195 | |
---|
1196 | class XMLErrorHandler( xml.sax.handler.ErrorHandler ): |
---|
1197 | |
---|
1198 | def error( self, exception ): |
---|
1199 | """Recoverable error""" |
---|
1200 | |
---|
1201 | debug_msg( 0, 'Recoverable XML error ' + str( exception ) + ' ignored.' ) |
---|
1202 | |
---|
1203 | def fatalError( self, exception ): |
---|
1204 | """Non-recoverable error""" |
---|
1205 | |
---|
1206 | exception_str = str( exception ) |
---|
1207 | |
---|
1208 | # Ignore 'no element found' errors |
---|
1209 | if exception_str.find( 'no element found' ) != -1: |
---|
1210 | debug_msg( 0, 'No XML data found: Socket not (re)connected or datasource not available.' ) |
---|
1211 | return 0 |
---|
1212 | |
---|
1213 | debug_msg( 0, 'FATAL ERROR: Non-recoverable XML error ' + str( exception ) ) |
---|
1214 | sys.exit( 1 ) |
---|
1215 | |
---|
1216 | def warning( self, exception ): |
---|
1217 | """Warning""" |
---|
1218 | |
---|
1219 | debug_msg( 0, 'Warning ' + str( exception ) ) |
---|
1220 | |
---|
1221 | class XMLGatherer: |
---|
1222 | """Setup a connection and file object to Ganglia's XML""" |
---|
1223 | |
---|
1224 | s = None |
---|
1225 | fd = None |
---|
1226 | data = None |
---|
1227 | slot = None |
---|
1228 | |
---|
1229 | # Time since the last update |
---|
1230 | # |
---|
1231 | LAST_UPDATE = 0 |
---|
1232 | |
---|
1233 | # Minimum interval between updates |
---|
1234 | # |
---|
1235 | MIN_UPDATE_INT = 10 |
---|
1236 | |
---|
1237 | # Is a update occuring now |
---|
1238 | # |
---|
1239 | update_now = False |
---|
1240 | |
---|
1241 | def __init__( self, host, port ): |
---|
1242 | """Store host and port for connection""" |
---|
1243 | |
---|
1244 | self.host = host |
---|
1245 | self.port = port |
---|
1246 | self.slot = threading.Lock() |
---|
1247 | |
---|
1248 | self.retrieveData() |
---|
1249 | |
---|
1250 | def retrieveData( self ): |
---|
1251 | """Setup connection to XML source""" |
---|
1252 | |
---|
1253 | self.update_now = True |
---|
1254 | |
---|
1255 | self.slot.acquire() |
---|
1256 | |
---|
1257 | self.data = None |
---|
1258 | |
---|
1259 | for res in socket.getaddrinfo( self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM ): |
---|
1260 | |
---|
1261 | af, socktype, proto, canonname, sa = res |
---|
1262 | |
---|
1263 | try: |
---|
1264 | |
---|
1265 | self.s = socket.socket( af, socktype, proto ) |
---|
1266 | |
---|
1267 | except ( socket.error, socket.gaierror, socket.herror, socket.timeout ), msg: |
---|
1268 | |
---|
1269 | self.s = None |
---|
1270 | continue |
---|
1271 | |
---|
1272 | try: |
---|
1273 | |
---|
1274 | self.s.connect( sa ) |
---|
1275 | |
---|
1276 | except ( socket.error, socket.gaierror, socket.herror, socket.timeout ), msg: |
---|
1277 | |
---|
1278 | self.disconnect() |
---|
1279 | continue |
---|
1280 | |
---|
1281 | break |
---|
1282 | |
---|
1283 | if self.s is None: |
---|
1284 | |
---|
1285 | debug_msg( 0, 'FATAL ERROR: Could not open socket or unable to connect to datasource!' ) |
---|
1286 | self.update_now = False |
---|
1287 | #sys.exit( 1 ) |
---|
1288 | |
---|
1289 | else: |
---|
1290 | #self.s.send( '\n' ) |
---|
1291 | |
---|
1292 | my_fp = self.s.makefile( 'r' ) |
---|
1293 | my_data = my_fp.readlines() |
---|
1294 | my_data = string.join( my_data, '' ) |
---|
1295 | |
---|
1296 | self.data = my_data |
---|
1297 | |
---|
1298 | self.LAST_UPDATE = time.time() |
---|
1299 | |
---|
1300 | self.slot.release() |
---|
1301 | |
---|
1302 | self.update_now = False |
---|
1303 | |
---|
1304 | def disconnect( self ): |
---|
1305 | """Close socket""" |
---|
1306 | |
---|
1307 | if self.s: |
---|
1308 | #self.s.shutdown( 2 ) |
---|
1309 | self.s.close() |
---|
1310 | self.s = None |
---|
1311 | |
---|
1312 | def __del__( self ): |
---|
1313 | """Kill the socket before we leave""" |
---|
1314 | |
---|
1315 | self.disconnect() |
---|
1316 | |
---|
1317 | def reGetData( self ): |
---|
1318 | """Reconnect""" |
---|
1319 | |
---|
1320 | while self.update_now: |
---|
1321 | |
---|
1322 | # Must be another update in progress: |
---|
1323 | # Wait until the update is complete |
---|
1324 | # |
---|
1325 | time.sleep( 1 ) |
---|
1326 | |
---|
1327 | if self.s: |
---|
1328 | self.disconnect() |
---|
1329 | |
---|
1330 | self.retrieveData() |
---|
1331 | |
---|
1332 | def getData( self ): |
---|
1333 | |
---|
1334 | """Return the XML data""" |
---|
1335 | |
---|
1336 | # If more than MIN_UPDATE_INT seconds passed since last data update |
---|
1337 | # update the XML first before returning it |
---|
1338 | # |
---|
1339 | |
---|
1340 | cur_time = time.time() |
---|
1341 | |
---|
1342 | if ( cur_time - self.LAST_UPDATE ) > self.MIN_UPDATE_INT: |
---|
1343 | |
---|
1344 | self.reGetData() |
---|
1345 | |
---|
1346 | while self.update_now: |
---|
1347 | |
---|
1348 | # Must be another update in progress: |
---|
1349 | # Wait until the update is complete |
---|
1350 | # |
---|
1351 | time.sleep( 1 ) |
---|
1352 | |
---|
1353 | return self.data |
---|
1354 | |
---|
1355 | def makeFileDescriptor( self ): |
---|
1356 | """Make file descriptor that points to our socket connection""" |
---|
1357 | |
---|
1358 | self.reconnect() |
---|
1359 | |
---|
1360 | if self.s: |
---|
1361 | self.fd = self.s.makefile( 'r' ) |
---|
1362 | |
---|
1363 | def getFileObject( self ): |
---|
1364 | """Connect, and return a file object""" |
---|
1365 | |
---|
1366 | self.makeFileDescriptor() |
---|
1367 | |
---|
1368 | if self.fd: |
---|
1369 | return self.fd |
---|
1370 | |
---|
1371 | class GangliaXMLProcessor( XMLProcessor ): |
---|
1372 | """Main class for processing XML and acting with it""" |
---|
1373 | |
---|
1374 | def __init__( self, XMLSource, DataStore ): |
---|
1375 | """Setup initial XML connection and handlers""" |
---|
1376 | |
---|
1377 | self.config = GangliaConfigParser( GMETAD_CONF ) |
---|
1378 | self.myXMLSource = XMLSource |
---|
1379 | self.ds = DataStore |
---|
1380 | self.myXMLHandler = GangliaXMLHandler( self.config, self.ds ) |
---|
1381 | self.myXMLError = XMLErrorHandler() |
---|
1382 | |
---|
1383 | def run( self ): |
---|
1384 | """Main XML processing; start a xml and storethread""" |
---|
1385 | |
---|
1386 | xml_thread = threading.Thread( None, self.processXML, 'xmlthread' ) |
---|
1387 | store_thread = threading.Thread( None, self.storeMetrics, 'storethread' ) |
---|
1388 | |
---|
1389 | while( 1 ): |
---|
1390 | |
---|
1391 | if not xml_thread.isAlive(): |
---|
1392 | # Gather XML at the same interval as gmetad |
---|
1393 | |
---|
1394 | # threaded call to: self.processXML() |
---|
1395 | # |
---|
1396 | try: |
---|
1397 | xml_thread = threading.Thread( None, self.processXML, 'xml_thread' ) |
---|
1398 | xml_thread.start() |
---|
1399 | except thread.error, msg: |
---|
1400 | debug_msg( 0, 'ERROR: Unable to start xml_thread!: '+str(msg)) |
---|
1401 | #return 1 |
---|
1402 | |
---|
1403 | if not store_thread.isAlive(): |
---|
1404 | # Store metrics every .. sec |
---|
1405 | |
---|
1406 | # threaded call to: self.storeMetrics() |
---|
1407 | # |
---|
1408 | try: |
---|
1409 | store_thread = threading.Thread( None, self.storeMetrics, 'store_thread' ) |
---|
1410 | store_thread.start() |
---|
1411 | except thread.error, msg: |
---|
1412 | debug_msg( 0, 'ERROR: Unable to start store_thread!: '+str(msg)) |
---|
1413 | #return 1 |
---|
1414 | |
---|
1415 | # Just sleep a sec here, to prevent daemon from going mad. We're all threads here anyway |
---|
1416 | time.sleep( 1 ) |
---|
1417 | |
---|
1418 | def storeMetrics( self ): |
---|
1419 | """Store metrics retained in memory to disk""" |
---|
1420 | |
---|
1421 | global DEBUG_LEVEL |
---|
1422 | |
---|
1423 | # Store metrics somewhere between every 360 and 640 seconds |
---|
1424 | # |
---|
1425 | if DEBUG_LEVEL >= 1: |
---|
1426 | STORE_INTERVAL = 60 |
---|
1427 | else: |
---|
1428 | STORE_INTERVAL = random.randint( 360, 640 ) |
---|
1429 | |
---|
1430 | try: |
---|
1431 | store_metric_thread = threading.Thread( None, self.storeThread, 'store_metric_thread' ) |
---|
1432 | store_metric_thread.start() |
---|
1433 | except thread.error, msg: |
---|
1434 | debug_msg( 0, 'ERROR: Unable to start ganglia_store_thread()!: '+str(msg) ) |
---|
1435 | return 1 |
---|
1436 | |
---|
1437 | debug_msg( 1, 'ganglia_store_thread(): started.' ) |
---|
1438 | |
---|
1439 | debug_msg( 1, 'ganglia_store_thread(): Sleeping.. (%ss)' %STORE_INTERVAL ) |
---|
1440 | time.sleep( STORE_INTERVAL ) |
---|
1441 | debug_msg( 1, 'ganglia_store_thread(): Done sleeping.' ) |
---|
1442 | |
---|
1443 | if store_metric_thread.isAlive(): |
---|
1444 | |
---|
1445 | debug_msg( 1, 'ganglia_store_thread(): storemetricthread() still running, waiting to finish..' ) |
---|
1446 | store_metric_thread.join( STORE_TIMEOUT ) # Maximum time is for storing thread to finish |
---|
1447 | |
---|
1448 | if store_metric_thread.isAlive(): |
---|
1449 | |
---|
1450 | debug_msg( 1, 'ganglia_store_thread(): Done waiting: storemetricthread() still running :( now what?' ) |
---|
1451 | else: |
---|
1452 | debug_msg( 1, 'ganglia_store_thread(): Done waiting: storemetricthread() has finished' ) |
---|
1453 | |
---|
1454 | debug_msg( 1, 'ganglia_store_thread(): finished.' ) |
---|
1455 | |
---|
1456 | return 0 |
---|
1457 | |
---|
1458 | def storeThread( self ): |
---|
1459 | """Actual metric storing thread""" |
---|
1460 | |
---|
1461 | debug_msg( 1, 'ganglia_store_metric_thread(): started.' ) |
---|
1462 | debug_msg( 1, 'ganglia_store_metric_thread(): Storing data..' ) |
---|
1463 | |
---|
1464 | ret = self.myXMLHandler.storeMetrics() |
---|
1465 | if ret > 0: |
---|
1466 | debug_msg( 0, 'ganglia_store_metric_thread(): UNKNOWN ERROR %s while storing Metrics!' %str(ret) ) |
---|
1467 | |
---|
1468 | debug_msg( 1, 'ganglia_store_metric_thread(): Done storing.' ) |
---|
1469 | debug_msg( 1, 'ganglia_store_metric_thread(): finished.' ) |
---|
1470 | |
---|
1471 | return 0 |
---|
1472 | |
---|
1473 | def processXML( self ): |
---|
1474 | """Process XML""" |
---|
1475 | |
---|
1476 | try: |
---|
1477 | parsethread = threading.Thread( None, self.parseThread, 'parsethread' ) |
---|
1478 | parsethread.start() |
---|
1479 | except thread.error, msg: |
---|
1480 | debug_msg( 0, 'ERROR: Unable to start ganglia_xml_thread()!: ' + str(msg) ) |
---|
1481 | return 1 |
---|
1482 | |
---|
1483 | debug_msg( 1, 'ganglia_xml_thread(): started.' ) |
---|
1484 | |
---|
1485 | debug_msg( 1, 'ganglia_xml_thread(): Sleeping.. (%ss)' %self.config.getLowestInterval() ) |
---|
1486 | time.sleep( float( self.config.getLowestInterval() ) ) |
---|
1487 | debug_msg( 1, 'ganglia_xml_thread(): Done sleeping.' ) |
---|
1488 | |
---|
1489 | if parsethread.isAlive(): |
---|
1490 | |
---|
1491 | debug_msg( 1, 'ganglia_xml_thread(): parsethread() still running, waiting (%ss) to finish..' %PARSE_TIMEOUT ) |
---|
1492 | parsethread.join( PARSE_TIMEOUT ) # Maximum time for XML thread to finish |
---|
1493 | |
---|
1494 | if parsethread.isAlive(): |
---|
1495 | debug_msg( 1, 'ganglia_xml_thread(): Done waiting: parsethread() still running :( now what?' ) |
---|
1496 | else: |
---|
1497 | debug_msg( 1, 'ganglia_xml_thread(): Done waiting: parsethread() finished' ) |
---|
1498 | |
---|
1499 | debug_msg( 1, 'ganglia_xml_thread(): finished.' ) |
---|
1500 | |
---|
1501 | return 0 |
---|
1502 | |
---|
1503 | def parseThread( self ): |
---|
1504 | """Actual parsing thread""" |
---|
1505 | |
---|
1506 | debug_msg( 1, 'ganglia_parse_thread(): started.' ) |
---|
1507 | debug_msg( 1, 'ganglia_parse_thread(): Retrieving XML data..' ) |
---|
1508 | |
---|
1509 | my_data = self.myXMLSource.getData() |
---|
1510 | |
---|
1511 | debug_msg( 1, 'ganglia_parse_thread(): Done retrieving: data size %d' %len(my_data) ) |
---|
1512 | |
---|
1513 | if my_data: |
---|
1514 | debug_msg( 1, 'ganglia_parse_thread(): Parsing XML..' ) |
---|
1515 | xml.sax.parseString( my_data, self.myXMLHandler, self.myXMLError ) |
---|
1516 | debug_msg( 1, 'ganglia_parse_thread(): Done parsing.' ) |
---|
1517 | |
---|
1518 | debug_msg( 1, 'ganglia_parse_thread(): finished.' ) |
---|
1519 | |
---|
1520 | return 0 |
---|
1521 | |
---|
1522 | class GangliaConfigParser: |
---|
1523 | |
---|
1524 | sources = [ ] |
---|
1525 | |
---|
1526 | def __init__( self, config ): |
---|
1527 | """Parse some stuff from our gmetad's config, such as polling interval""" |
---|
1528 | |
---|
1529 | self.config = config |
---|
1530 | self.parseValues() |
---|
1531 | |
---|
1532 | def parseValues( self ): |
---|
1533 | """Parse certain values from gmetad.conf""" |
---|
1534 | |
---|
1535 | readcfg = open( self.config, 'r' ) |
---|
1536 | |
---|
1537 | for line in readcfg.readlines(): |
---|
1538 | |
---|
1539 | if line.count( '"' ) > 1: |
---|
1540 | |
---|
1541 | if line.find( 'data_source' ) != -1 and line[0] != '#': |
---|
1542 | |
---|
1543 | source = { } |
---|
1544 | source['name'] = line.split( '"' )[1] |
---|
1545 | source_words = line.split( '"' )[2].split( ' ' ) |
---|
1546 | |
---|
1547 | for word in source_words: |
---|
1548 | |
---|
1549 | valid_interval = 1 |
---|
1550 | |
---|
1551 | for letter in word: |
---|
1552 | |
---|
1553 | if letter not in string.digits: |
---|
1554 | |
---|
1555 | valid_interval = 0 |
---|
1556 | |
---|
1557 | if valid_interval and len(word) > 0: |
---|
1558 | |
---|
1559 | source['interval'] = word |
---|
1560 | debug_msg( 9, 'polling interval for %s = %s' %(source['name'], source['interval'] ) ) |
---|
1561 | |
---|
1562 | # No interval found, use Ganglia's default |
---|
1563 | if not source.has_key( 'interval' ): |
---|
1564 | source['interval'] = 15 |
---|
1565 | debug_msg( 9, 'polling interval for %s defaulted to 15' %(source['name']) ) |
---|
1566 | |
---|
1567 | self.sources.append( source ) |
---|
1568 | |
---|
1569 | def getInterval( self, source_name ): |
---|
1570 | """Return interval for source_name""" |
---|
1571 | |
---|
1572 | for source in self.sources: |
---|
1573 | |
---|
1574 | if source['name'] == source_name: |
---|
1575 | |
---|
1576 | return source['interval'] |
---|
1577 | |
---|
1578 | return None |
---|
1579 | |
---|
1580 | def getLowestInterval( self ): |
---|
1581 | """Return the lowest interval of all clusters""" |
---|
1582 | |
---|
1583 | lowest_interval = 0 |
---|
1584 | |
---|
1585 | for source in self.sources: |
---|
1586 | |
---|
1587 | if not lowest_interval or source['interval'] <= lowest_interval: |
---|
1588 | |
---|
1589 | lowest_interval = source['interval'] |
---|
1590 | |
---|
1591 | # Return 15 when nothing is found, so that the daemon won't go insane with 0 sec delays |
---|
1592 | if lowest_interval: |
---|
1593 | return lowest_interval |
---|
1594 | else: |
---|
1595 | return 15 |
---|
1596 | |
---|
1597 | class RRDHandler: |
---|
1598 | """Class for handling RRD activity""" |
---|
1599 | |
---|
1600 | myMetrics = { } |
---|
1601 | lastStored = { } |
---|
1602 | timeserials = { } |
---|
1603 | slot = None |
---|
1604 | |
---|
1605 | def __init__( self, config, cluster ): |
---|
1606 | """Setup initial variables""" |
---|
1607 | |
---|
1608 | global MODRRDTOOL |
---|
1609 | |
---|
1610 | self.block = 0 |
---|
1611 | self.cluster = cluster |
---|
1612 | self.config = config |
---|
1613 | self.slot = threading.Lock() |
---|
1614 | |
---|
1615 | if MODRRDTOOL: |
---|
1616 | |
---|
1617 | self.rrdm = RRDMutator() |
---|
1618 | else: |
---|
1619 | self.rrdm = RRDMutator( RRDTOOL ) |
---|
1620 | |
---|
1621 | global DEBUG_LEVEL |
---|
1622 | |
---|
1623 | if DEBUG_LEVEL <= 2: |
---|
1624 | self.gatherLastUpdates() |
---|
1625 | |
---|
1626 | def gatherLastUpdates( self ): |
---|
1627 | """Populate the lastStored list, containing timestamps of all last updates""" |
---|
1628 | |
---|
1629 | cluster_dir = '%s/%s' %( check_dir(ARCHIVE_PATH), self.cluster ) |
---|
1630 | |
---|
1631 | hosts = [ ] |
---|
1632 | |
---|
1633 | if os.path.exists( cluster_dir ): |
---|
1634 | |
---|
1635 | dirlist = os.listdir( cluster_dir ) |
---|
1636 | |
---|
1637 | for dir in dirlist: |
---|
1638 | |
---|
1639 | hosts.append( dir ) |
---|
1640 | |
---|
1641 | for host in hosts: |
---|
1642 | |
---|
1643 | host_dir = cluster_dir + '/' + host |
---|
1644 | dirlist = os.listdir( host_dir ) |
---|
1645 | |
---|
1646 | for dir in dirlist: |
---|
1647 | |
---|
1648 | if not self.timeserials.has_key( host ): |
---|
1649 | |
---|
1650 | self.timeserials[ host ] = [ ] |
---|
1651 | |
---|
1652 | self.timeserials[ host ].append( dir ) |
---|
1653 | |
---|
1654 | last_serial = self.getLastRrdTimeSerial( host ) |
---|
1655 | |
---|
1656 | if last_serial: |
---|
1657 | |
---|
1658 | metric_dir = cluster_dir + '/' + host + '/' + last_serial |
---|
1659 | |
---|
1660 | if os.path.exists( metric_dir ): |
---|
1661 | |
---|
1662 | dirlist = os.listdir( metric_dir ) |
---|
1663 | |
---|
1664 | for file in dirlist: |
---|
1665 | |
---|
1666 | metricname = file.split( '.rrd' )[0] |
---|
1667 | |
---|
1668 | if not self.lastStored.has_key( host ): |
---|
1669 | |
---|
1670 | self.lastStored[ host ] = { } |
---|
1671 | |
---|
1672 | self.lastStored[ host ][ metricname ] = self.rrdm.grabLastUpdate( metric_dir + '/' + file ) |
---|
1673 | |
---|
1674 | def getClusterName( self ): |
---|
1675 | """Return clustername""" |
---|
1676 | |
---|
1677 | return self.cluster |
---|
1678 | |
---|
1679 | def memMetric( self, host, metric ): |
---|
1680 | """Store metric from host in memory""" |
---|
1681 | |
---|
1682 | # <ATOMIC> |
---|
1683 | # |
---|
1684 | self.slot.acquire() |
---|
1685 | |
---|
1686 | if self.myMetrics.has_key( host ): |
---|
1687 | |
---|
1688 | if self.myMetrics[ host ].has_key( metric['name'] ): |
---|
1689 | |
---|
1690 | for mymetric in self.myMetrics[ host ][ metric['name'] ]: |
---|
1691 | |
---|
1692 | if mymetric['time'] == metric['time']: |
---|
1693 | |
---|
1694 | # Allready have this metric, abort |
---|
1695 | self.slot.release() |
---|
1696 | return 1 |
---|
1697 | else: |
---|
1698 | self.myMetrics[ host ][ metric['name'] ] = [ ] |
---|
1699 | else: |
---|
1700 | self.myMetrics[ host ] = { } |
---|
1701 | self.myMetrics[ host ][ metric['name'] ] = [ ] |
---|
1702 | |
---|
1703 | # Push new metric onto stack |
---|
1704 | # atomic code; only 1 thread at a time may access the stack |
---|
1705 | |
---|
1706 | self.myMetrics[ host ][ metric['name'] ].append( metric ) |
---|
1707 | |
---|
1708 | self.slot.release() |
---|
1709 | # |
---|
1710 | # </ATOMIC> |
---|
1711 | |
---|
1712 | def makeUpdateList( self, host, metriclist ): |
---|
1713 | """ |
---|
1714 | Make a list of update values for rrdupdate |
---|
1715 | but only those that we didn't store before |
---|
1716 | """ |
---|
1717 | |
---|
1718 | update_list = [ ] |
---|
1719 | metric = None |
---|
1720 | |
---|
1721 | while len( metriclist ) > 0: |
---|
1722 | |
---|
1723 | metric = metriclist.pop( 0 ) |
---|
1724 | |
---|
1725 | if self.checkStoreMetric( host, metric ): |
---|
1726 | |
---|
1727 | u_val = str( metric['time'] ) + ':' + str( metric['val'] ) |
---|
1728 | #update_list.append( str('%s:%s') %( metric['time'], metric['val'] ) ) |
---|
1729 | update_list.append( u_val ) |
---|
1730 | |
---|
1731 | return update_list |
---|
1732 | |
---|
1733 | def checkStoreMetric( self, host, metric ): |
---|
1734 | """Check if supplied metric if newer than last one stored""" |
---|
1735 | |
---|
1736 | if self.lastStored.has_key( host ): |
---|
1737 | |
---|
1738 | if self.lastStored[ host ].has_key( metric['name'] ): |
---|
1739 | |
---|
1740 | if metric['time'] <= self.lastStored[ host ][ metric['name'] ]: |
---|
1741 | |
---|
1742 | # This is old |
---|
1743 | return 0 |
---|
1744 | |
---|
1745 | return 1 |
---|
1746 | |
---|
1747 | def memLastUpdate( self, host, metricname, metriclist ): |
---|
1748 | """ |
---|
1749 | Memorize the time of the latest metric from metriclist |
---|
1750 | but only if it wasn't allready memorized |
---|
1751 | """ |
---|
1752 | |
---|
1753 | if not self.lastStored.has_key( host ): |
---|
1754 | self.lastStored[ host ] = { } |
---|
1755 | |
---|
1756 | last_update_time = 0 |
---|
1757 | |
---|
1758 | for metric in metriclist: |
---|
1759 | |
---|
1760 | if metric['name'] == metricname: |
---|
1761 | |
---|
1762 | if metric['time'] > last_update_time: |
---|
1763 | |
---|
1764 | last_update_time = metric['time'] |
---|
1765 | |
---|
1766 | if self.lastStored[ host ].has_key( metricname ): |
---|
1767 | |
---|
1768 | if last_update_time <= self.lastStored[ host ][ metricname ]: |
---|
1769 | return 1 |
---|
1770 | |
---|
1771 | self.lastStored[ host ][ metricname ] = last_update_time |
---|
1772 | |
---|
1773 | def storeMetrics( self ): |
---|
1774 | """ |
---|
1775 | Store all metrics from memory to disk |
---|
1776 | and do it to the RRD's in appropriate timeperiod directory |
---|
1777 | """ |
---|
1778 | |
---|
1779 | debug_msg( 5, "Entering storeMetrics()") |
---|
1780 | |
---|
1781 | count_values = 0 |
---|
1782 | count_metrics = 0 |
---|
1783 | count_bits = 0 |
---|
1784 | |
---|
1785 | for hostname, mymetrics in self.myMetrics.items(): |
---|
1786 | |
---|
1787 | for metricname, mymetric in mymetrics.items(): |
---|
1788 | |
---|
1789 | count_metrics += 1 |
---|
1790 | |
---|
1791 | for dmetric in mymetric: |
---|
1792 | |
---|
1793 | count_values += 1 |
---|
1794 | |
---|
1795 | count_bits += len( dmetric['time'] ) |
---|
1796 | count_bits += len( dmetric['val'] ) |
---|
1797 | |
---|
1798 | count_bytes = count_bits / 8 |
---|
1799 | |
---|
1800 | debug_msg( 5, "size of cluster '" + self.cluster + "': " + |
---|
1801 | str( len( self.myMetrics.keys() ) ) + " hosts " + |
---|
1802 | str( count_metrics ) + " metrics " + str( count_values ) + " values " + |
---|
1803 | str( count_bits ) + " bits " + str( count_bytes ) + " bytes " ) |
---|
1804 | |
---|
1805 | for hostname, mymetrics in self.myMetrics.items(): |
---|
1806 | |
---|
1807 | for metricname, mymetric in mymetrics.items(): |
---|
1808 | |
---|
1809 | metrics_to_store = [ ] |
---|
1810 | |
---|
1811 | # Pop metrics from stack for storing until none is left |
---|
1812 | # atomic code: only 1 thread at a time may access myMetrics |
---|
1813 | |
---|
1814 | # <ATOMIC> |
---|
1815 | # |
---|
1816 | self.slot.acquire() |
---|
1817 | |
---|
1818 | while len( self.myMetrics[ hostname ][ metricname ] ) > 0: |
---|
1819 | |
---|
1820 | if len( self.myMetrics[ hostname ][ metricname ] ) > 0: |
---|
1821 | |
---|
1822 | try: |
---|
1823 | metrics_to_store.append( self.myMetrics[ hostname ][ metricname ].pop( 0 ) ) |
---|
1824 | except IndexError, msg: |
---|
1825 | |
---|
1826 | # Somehow sometimes myMetrics[ hostname ][ metricname ] |
---|
1827 | # is still len 0 when the statement is executed. |
---|
1828 | # Just ignore indexerror's.. |
---|
1829 | pass |
---|
1830 | |
---|
1831 | self.slot.release() |
---|
1832 | # |
---|
1833 | # </ATOMIC> |
---|
1834 | |
---|
1835 | # Create a mapping table, each metric to the period where it should be stored |
---|
1836 | # |
---|
1837 | metric_serial_table = self.determineSerials( hostname, metricname, metrics_to_store ) |
---|
1838 | |
---|
1839 | update_rets = [ ] |
---|
1840 | |
---|
1841 | for period, pmetric in metric_serial_table.items(): |
---|
1842 | |
---|
1843 | create_ret = self.createCheck( hostname, metricname, period ) |
---|
1844 | |
---|
1845 | update_ret = self.update( hostname, metricname, period, pmetric ) |
---|
1846 | |
---|
1847 | if update_ret == 0: |
---|
1848 | |
---|
1849 | debug_msg( 9, 'stored metric %s for %s' %( hostname, metricname ) ) |
---|
1850 | else: |
---|
1851 | debug_msg( 9, 'metric update failed' ) |
---|
1852 | |
---|
1853 | update_rets.append( create_ret ) |
---|
1854 | update_rets.append( update_ret ) |
---|
1855 | |
---|
1856 | # Lets ignore errors here for now, we need to make sure last update time |
---|
1857 | # is correct! |
---|
1858 | # |
---|
1859 | #if not (1) in update_rets: |
---|
1860 | |
---|
1861 | self.memLastUpdate( hostname, metricname, metrics_to_store ) |
---|
1862 | |
---|
1863 | debug_msg( 5, "Leaving storeMetrics()") |
---|
1864 | |
---|
1865 | def makeTimeSerial( self ): |
---|
1866 | """Generate a time serial. Seconds since epoch""" |
---|
1867 | |
---|
1868 | # Seconds since epoch |
---|
1869 | mytime = int( time.time() ) |
---|
1870 | |
---|
1871 | return mytime |
---|
1872 | |
---|
1873 | def makeRrdPath( self, host, metricname, timeserial ): |
---|
1874 | """Make a RRD location/path and filename""" |
---|
1875 | |
---|
1876 | rrd_dir = '%s/%s/%s/%s' %( check_dir(ARCHIVE_PATH), self.cluster, host, timeserial ) |
---|
1877 | rrd_file = '%s/%s.rrd' %( rrd_dir, metricname ) |
---|
1878 | |
---|
1879 | return rrd_dir, rrd_file |
---|
1880 | |
---|
1881 | def getLastRrdTimeSerial( self, host ): |
---|
1882 | """Find the last timeserial (directory) for this host""" |
---|
1883 | |
---|
1884 | newest_timeserial = 0 |
---|
1885 | |
---|
1886 | for dir in self.timeserials[ host ]: |
---|
1887 | |
---|
1888 | valid_dir = 1 |
---|
1889 | |
---|
1890 | for letter in dir: |
---|
1891 | if letter not in string.digits: |
---|
1892 | valid_dir = 0 |
---|
1893 | |
---|
1894 | if valid_dir: |
---|
1895 | timeserial = dir |
---|
1896 | if timeserial > newest_timeserial: |
---|
1897 | newest_timeserial = timeserial |
---|
1898 | |
---|
1899 | if newest_timeserial: |
---|
1900 | return newest_timeserial |
---|
1901 | else: |
---|
1902 | return 0 |
---|
1903 | |
---|
1904 | def determinePeriod( self, host, check_serial ): |
---|
1905 | """Determine to which period (directory) this time(serial) belongs""" |
---|
1906 | |
---|
1907 | period_serial = 0 |
---|
1908 | |
---|
1909 | if self.timeserials.has_key( host ): |
---|
1910 | |
---|
1911 | for serial in self.timeserials[ host ]: |
---|
1912 | |
---|
1913 | if check_serial >= serial and period_serial < serial: |
---|
1914 | |
---|
1915 | period_serial = serial |
---|
1916 | |
---|
1917 | return period_serial |
---|
1918 | |
---|
1919 | def determineSerials( self, host, metricname, metriclist ): |
---|
1920 | """ |
---|
1921 | Determine the correct serial and corresponding rrd to store |
---|
1922 | for a list of metrics |
---|
1923 | """ |
---|
1924 | |
---|
1925 | metric_serial_table = { } |
---|
1926 | |
---|
1927 | for metric in metriclist: |
---|
1928 | |
---|
1929 | if metric['name'] == metricname: |
---|
1930 | |
---|
1931 | period = self.determinePeriod( host, metric['time'] ) |
---|
1932 | |
---|
1933 | archive_secs = ARCHIVE_HOURS_PER_RRD * (60 * 60) |
---|
1934 | |
---|
1935 | if (int( metric['time'] ) - int( period ) ) > archive_secs: |
---|
1936 | |
---|
1937 | # This one should get it's own new period |
---|
1938 | period = metric['time'] |
---|
1939 | |
---|
1940 | if not self.timeserials.has_key( host ): |
---|
1941 | self.timeserials[ host ] = [ ] |
---|
1942 | |
---|
1943 | self.timeserials[ host ].append( period ) |
---|
1944 | |
---|
1945 | if not metric_serial_table.has_key( period ): |
---|
1946 | |
---|
1947 | metric_serial_table[ period ] = [ ] |
---|
1948 | |
---|
1949 | metric_serial_table[ period ].append( metric ) |
---|
1950 | |
---|
1951 | return metric_serial_table |
---|
1952 | |
---|
1953 | def createCheck( self, host, metricname, timeserial ): |
---|
1954 | """Check if an rrd allready exists for this metric, create if not""" |
---|
1955 | |
---|
1956 | debug_msg( 9, 'rrdcreate: using timeserial %s for %s/%s' %( timeserial, host, metricname ) ) |
---|
1957 | |
---|
1958 | rrd_dir, rrd_file = self.makeRrdPath( host, metricname, timeserial ) |
---|
1959 | |
---|
1960 | if not os.path.exists( rrd_dir ): |
---|
1961 | |
---|
1962 | try: |
---|
1963 | os.makedirs( rrd_dir ) |
---|
1964 | |
---|
1965 | except os.OSError, msg: |
---|
1966 | |
---|
1967 | if msg.find( 'File exists' ) != -1: |
---|
1968 | |
---|
1969 | # Ignore exists errors |
---|
1970 | pass |
---|
1971 | |
---|
1972 | else: |
---|
1973 | |
---|
1974 | print msg |
---|
1975 | return |
---|
1976 | |
---|
1977 | debug_msg( 9, 'created dir %s' %( str(rrd_dir) ) ) |
---|
1978 | |
---|
1979 | if not os.path.exists( rrd_file ): |
---|
1980 | |
---|
1981 | interval = self.config.getInterval( self.cluster ) |
---|
1982 | heartbeat = 8 * int( interval ) |
---|
1983 | |
---|
1984 | params = [ ] |
---|
1985 | |
---|
1986 | params.append( '--step' ) |
---|
1987 | params.append( str( interval ) ) |
---|
1988 | |
---|
1989 | params.append( '--start' ) |
---|
1990 | params.append( str( int( timeserial ) - 1 ) ) |
---|
1991 | |
---|
1992 | params.append( 'DS:sum:GAUGE:%d:U:U' %heartbeat ) |
---|
1993 | params.append( 'RRA:AVERAGE:0.5:1:%s' %(ARCHIVE_HOURS_PER_RRD * 240) ) |
---|
1994 | |
---|
1995 | self.rrdm.create( str(rrd_file), params ) |
---|
1996 | |
---|
1997 | debug_msg( 9, 'created rrd %s' %( str(rrd_file) ) ) |
---|
1998 | |
---|
1999 | def update( self, host, metricname, timeserial, metriclist ): |
---|
2000 | """ |
---|
2001 | Update rrd file for host with metricname |
---|
2002 | in directory timeserial with metriclist |
---|
2003 | """ |
---|
2004 | |
---|
2005 | debug_msg( 9, 'rrdupdate: using timeserial %s for %s/%s' %( timeserial, host, metricname ) ) |
---|
2006 | |
---|
2007 | rrd_dir, rrd_file = self.makeRrdPath( host, metricname, timeserial ) |
---|
2008 | |
---|
2009 | update_list = self.makeUpdateList( host, metriclist ) |
---|
2010 | |
---|
2011 | if len( update_list ) > 0: |
---|
2012 | ret = self.rrdm.update( str(rrd_file), update_list ) |
---|
2013 | |
---|
2014 | if ret: |
---|
2015 | return 1 |
---|
2016 | |
---|
2017 | debug_msg( 9, 'updated rrd %s with %s' %( str(rrd_file), string.join( update_list ) ) ) |
---|
2018 | |
---|
2019 | return 0 |
---|
2020 | |
---|
2021 | def daemon(): |
---|
2022 | """daemonized threading""" |
---|
2023 | |
---|
2024 | # Fork the first child |
---|
2025 | # |
---|
2026 | pid = os.fork() |
---|
2027 | |
---|
2028 | if pid > 0: |
---|
2029 | |
---|
2030 | sys.exit(0) # end parent |
---|
2031 | |
---|
2032 | # creates a session and sets the process group ID |
---|
2033 | # |
---|
2034 | os.setsid() |
---|
2035 | |
---|
2036 | # Fork the second child |
---|
2037 | # |
---|
2038 | pid = os.fork() |
---|
2039 | |
---|
2040 | if pid > 0: |
---|
2041 | |
---|
2042 | sys.exit(0) # end parent |
---|
2043 | |
---|
2044 | write_pidfile() |
---|
2045 | |
---|
2046 | # Go to the root directory and set the umask |
---|
2047 | # |
---|
2048 | os.chdir('/') |
---|
2049 | os.umask(0) |
---|
2050 | |
---|
2051 | sys.stdin.close() |
---|
2052 | sys.stdout.close() |
---|
2053 | sys.stderr.close() |
---|
2054 | |
---|
2055 | os.open('/dev/null', os.O_RDWR) |
---|
2056 | os.dup2(0, 1) |
---|
2057 | os.dup2(0, 2) |
---|
2058 | |
---|
2059 | run() |
---|
2060 | |
---|
2061 | def run(): |
---|
2062 | """Threading start""" |
---|
2063 | |
---|
2064 | config = GangliaConfigParser( GMETAD_CONF ) |
---|
2065 | s_timeout = int( config.getLowestInterval() - 1 ) |
---|
2066 | |
---|
2067 | socket.setdefaulttimeout( s_timeout ) |
---|
2068 | |
---|
2069 | myXMLSource = XMLGatherer( ARCHIVE_XMLSOURCE.split( ':' )[0], ARCHIVE_XMLSOURCE.split( ':' )[1] ) |
---|
2070 | myDataStore = DataSQLStore( JOB_SQL_DBASE.split( '/' )[0], JOB_SQL_DBASE.split( '/' )[1] ) |
---|
2071 | |
---|
2072 | myJobProcessor = JobXMLProcessor( myXMLSource, myDataStore ) |
---|
2073 | myGangliaProcessor = GangliaXMLProcessor( myXMLSource, myDataStore ) |
---|
2074 | |
---|
2075 | try: |
---|
2076 | job_xml_thread = threading.Thread( None, myJobProcessor.run, 'job_proc_thread' ) |
---|
2077 | ganglia_xml_thread = threading.Thread( None, myGangliaProcessor.run, 'ganglia_proc_thread' ) |
---|
2078 | |
---|
2079 | job_xml_thread.start() |
---|
2080 | ganglia_xml_thread.start() |
---|
2081 | |
---|
2082 | except thread.error, msg: |
---|
2083 | debug_msg( 0, 'FATAL ERROR: Unable to start main threads!: '+ str(msg) ) |
---|
2084 | syslog.closelog() |
---|
2085 | sys.exit(1) |
---|
2086 | |
---|
2087 | debug_msg( 0, 'main threading started.' ) |
---|
2088 | |
---|
2089 | def main(): |
---|
2090 | """Program startup""" |
---|
2091 | |
---|
2092 | global DAEMONIZE, USE_SYSLOG |
---|
2093 | |
---|
2094 | if not processArgs( sys.argv[1:] ): |
---|
2095 | sys.exit( 1 ) |
---|
2096 | |
---|
2097 | if( DAEMONIZE and USE_SYSLOG ): |
---|
2098 | syslog.openlog( 'jobarchived', syslog.LOG_NOWAIT, SYSLOG_FACILITY ) |
---|
2099 | |
---|
2100 | if DAEMONIZE: |
---|
2101 | daemon() |
---|
2102 | else: |
---|
2103 | run() |
---|
2104 | |
---|
2105 | # |
---|
2106 | # Global functions |
---|
2107 | # |
---|
2108 | |
---|
2109 | def check_dir( directory ): |
---|
2110 | """Check if directory is a proper directory. I.e.: Does _not_ end with a '/'""" |
---|
2111 | |
---|
2112 | if directory[-1] == '/': |
---|
2113 | directory = directory[:-1] |
---|
2114 | |
---|
2115 | return directory |
---|
2116 | |
---|
2117 | def reqtime2epoch( rtime ): |
---|
2118 | |
---|
2119 | (hours, minutes, seconds ) = rtime.split( ':' ) |
---|
2120 | |
---|
2121 | etime = int(seconds) |
---|
2122 | etime = etime + ( int(minutes) * 60 ) |
---|
2123 | etime = etime + ( int(hours) * 60 * 60 ) |
---|
2124 | |
---|
2125 | return etime |
---|
2126 | |
---|
2127 | def debug_msg( level, msg ): |
---|
2128 | """Only print msg if correct levels""" |
---|
2129 | |
---|
2130 | if (not DAEMONIZE and DEBUG_LEVEL >= level): |
---|
2131 | sys.stderr.write( printTime() + ' - ' + msg + '\n' ) |
---|
2132 | |
---|
2133 | if (DAEMONIZE and USE_SYSLOG and SYSLOG_LEVEL >= level): |
---|
2134 | syslog.syslog( msg ) |
---|
2135 | |
---|
2136 | def printTime( ): |
---|
2137 | """Print current time in human readable format""" |
---|
2138 | |
---|
2139 | return time.strftime("%a %d %b %Y %H:%M:%S") |
---|
2140 | |
---|
2141 | def write_pidfile(): |
---|
2142 | |
---|
2143 | # Write pidfile if PIDFILE exists |
---|
2144 | if PIDFILE: |
---|
2145 | |
---|
2146 | pid = os.getpid() |
---|
2147 | |
---|
2148 | pidfile = open(PIDFILE, 'w') |
---|
2149 | |
---|
2150 | pidfile.write( str( pid ) ) |
---|
2151 | pidfile.close() |
---|
2152 | |
---|
2153 | # Ooohh, someone started me! Let's go.. |
---|
2154 | # |
---|
2155 | if __name__ == '__main__': |
---|
2156 | main() |
---|