1 | #!/usr/bin/env python |
---|
2 | |
---|
3 | from xml.sax import make_parser |
---|
4 | from xml.sax.handler import ContentHandler |
---|
5 | import socket |
---|
6 | import sys |
---|
7 | import rrdtool |
---|
8 | import string |
---|
9 | import os |
---|
10 | import os.path |
---|
11 | |
---|
12 | # Specify debugging level here; |
---|
13 | # |
---|
14 | # >10 = metric XML |
---|
15 | # >9 = host,cluster,grid,ganglia XML |
---|
16 | # >8 = RRD activity,gmetad config parsing |
---|
17 | # |
---|
18 | DEBUG_LEVEL = 9 |
---|
19 | |
---|
20 | # Where is the gmetad.conf located |
---|
21 | # |
---|
22 | GMETAD_CONF = '/etc/gmetad.conf' |
---|
23 | |
---|
24 | # Where to store the archived rrd's |
---|
25 | # |
---|
26 | ARCHIVE_PATH = '/data/toga/rrds' |
---|
27 | |
---|
28 | # List of data_source names to archive for |
---|
29 | # |
---|
30 | ARCHIVE_SOURCES = [ "LISA Cluster" ] |
---|
31 | |
---|
32 | # |
---|
33 | # Configuration ends |
---|
34 | # |
---|
35 | |
---|
36 | """ |
---|
37 | This is TOrque-GAnglia's data Daemon |
---|
38 | """ |
---|
39 | |
---|
40 | class GangliaXMLHandler( ContentHandler ): |
---|
41 | "Parse Ganglia's XML" |
---|
42 | |
---|
43 | metrics = [ ] |
---|
44 | |
---|
45 | def startElement( self, name, attrs ): |
---|
46 | "Store appropriate data from xml start tags" |
---|
47 | |
---|
48 | if name == 'GANGLIA_XML': |
---|
49 | self.XMLSource = attrs.get('SOURCE',"") |
---|
50 | self.gangliaVersion = attrs.get('VERSION',"") |
---|
51 | debug_msg( 10, 'Found XML data: source %s version %s' %( self.XMLSource, self.gangliaVersion ) ) |
---|
52 | |
---|
53 | elif name == 'GRID': |
---|
54 | self.gridName = attrs.get('NAME',"") |
---|
55 | self.time = attrs.get('LOCALTIME',"") |
---|
56 | debug_msg( 10, '`-Grid found: %s' %( self.gridName ) ) |
---|
57 | |
---|
58 | elif name == 'CLUSTER': |
---|
59 | self.clusterName = attrs.get('NAME',"") |
---|
60 | self.time = attrs.get('LOCALTIME',"") |
---|
61 | self.rrd = RRDHandler( self.clusterName ) |
---|
62 | debug_msg( 10, ' |-Cluster found: %s' %( self.clusterName ) ) |
---|
63 | |
---|
64 | elif name == 'HOST': |
---|
65 | self.hostName = attrs.get('NAME',"") |
---|
66 | self.hostIp = attrs.get('IP',"") |
---|
67 | self.hostReported = attrs.get('REPORTED',"") |
---|
68 | # Reset the metrics list for each host |
---|
69 | self.metrics = [ ] |
---|
70 | debug_msg( 10, ' | |-Host found: %s - ip %s reported %s' %( self.hostName, self.hostIp, self.hostReported ) ) |
---|
71 | |
---|
72 | elif name == 'METRIC': |
---|
73 | myMetric = { } |
---|
74 | myMetric['name'] = attrs.get('NAME',"") |
---|
75 | myMetric['val'] = attrs.get('VAL',"") |
---|
76 | myMetric['time'] = self.time |
---|
77 | |
---|
78 | self.metrics.append( myMetric ) |
---|
79 | debug_msg( 11, ' | | |-metric: %s:%s' %( myMetric['name'], myMetric['val'] ) ) |
---|
80 | |
---|
81 | return |
---|
82 | |
---|
83 | def endElement( self, name ): |
---|
84 | #if name == 'GANGLIA_XML': |
---|
85 | |
---|
86 | #if name == 'GRID': |
---|
87 | |
---|
88 | #if name == 'CLUSTER': |
---|
89 | |
---|
90 | if name == 'HOST': |
---|
91 | self.storeMetrics( self.hostName ) |
---|
92 | |
---|
93 | #if name == 'METRIC': |
---|
94 | |
---|
95 | def storeMetrics( self, hostname ): |
---|
96 | |
---|
97 | for metric in self.metrics: |
---|
98 | self.rrd.createCheck( hostname, metric ) |
---|
99 | self.rrd.update( hostname, metric['name'], metric['val'] ) |
---|
100 | debug_msg( 9, 'stored metric %s for %s: %s' %( hostname, metric['name'], metric['val'] ) ) |
---|
101 | sys.exit(1) |
---|
102 | |
---|
103 | |
---|
104 | class GangliaXMLGatherer: |
---|
105 | "Setup a connection and file object to Ganglia's XML" |
---|
106 | |
---|
107 | s = None |
---|
108 | |
---|
109 | def __init__( self, host, port ): |
---|
110 | "Store host and port for connection" |
---|
111 | |
---|
112 | self.host = host |
---|
113 | self.port = port |
---|
114 | |
---|
115 | def __del__( self ): |
---|
116 | "Kill the socket before we leave" |
---|
117 | |
---|
118 | self.s.close() |
---|
119 | |
---|
120 | def getFileObject( self ): |
---|
121 | "Connect, and return a file object" |
---|
122 | |
---|
123 | for res in socket.getaddrinfo( self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM ): |
---|
124 | af, socktype, proto, canonname, sa = res |
---|
125 | try: |
---|
126 | self.s = socket.socket( af, socktype, proto ) |
---|
127 | except socket.error, msg: |
---|
128 | self.s = None |
---|
129 | continue |
---|
130 | try: |
---|
131 | self.s.connect( sa ) |
---|
132 | except socket.error, msg: |
---|
133 | self.s.close() |
---|
134 | self.s = None |
---|
135 | continue |
---|
136 | break |
---|
137 | |
---|
138 | if self.s is None: |
---|
139 | print 'Could not open socket' |
---|
140 | sys.exit(1) |
---|
141 | |
---|
142 | return self.s.makefile( 'r' ) |
---|
143 | |
---|
144 | class GangliaXMLProcessor: |
---|
145 | |
---|
146 | def daemon( self ): |
---|
147 | "Run as daemon forever" |
---|
148 | |
---|
149 | self.DAEMON = 1 |
---|
150 | |
---|
151 | # Fork the first child |
---|
152 | # |
---|
153 | pid = os.fork() |
---|
154 | if pid > 0: |
---|
155 | sys.exit(0) # end parrent |
---|
156 | |
---|
157 | # creates a session and sets the process group ID |
---|
158 | # |
---|
159 | os.setsid() |
---|
160 | |
---|
161 | # Fork the second child |
---|
162 | # |
---|
163 | pid = os.fork() |
---|
164 | if pid > 0: |
---|
165 | sys.exit(0) # end parrent |
---|
166 | |
---|
167 | # Go to the root directory and set the umask |
---|
168 | # |
---|
169 | os.chdir('/') |
---|
170 | os.umask(0) |
---|
171 | |
---|
172 | sys.stdin.close() |
---|
173 | sys.stdout.close() |
---|
174 | if (DEBUGLEVEL == 0): |
---|
175 | sys.stderr.close() |
---|
176 | |
---|
177 | os.open('/dev/null', 0) |
---|
178 | os.dup(0) |
---|
179 | os.dup(0) |
---|
180 | |
---|
181 | self.run() |
---|
182 | |
---|
183 | def run( self ): |
---|
184 | "Main thread" |
---|
185 | |
---|
186 | while ( 1 ): |
---|
187 | self.processXML() |
---|
188 | time.sleep( 5 ) |
---|
189 | |
---|
190 | def processXML( self ): |
---|
191 | "Process XML" |
---|
192 | |
---|
193 | myXMLGatherer = GangliaXMLGatherer( 'localhost', 8651 ) |
---|
194 | |
---|
195 | myParser = make_parser() |
---|
196 | myHandler = GangliaXMLHandler() |
---|
197 | myParser.setContentHandler( myHandler ) |
---|
198 | |
---|
199 | myParser.parse( myXMLGatherer.getFileObject() ) |
---|
200 | |
---|
201 | class GangliaConfigParser: |
---|
202 | |
---|
203 | sources = [ ] |
---|
204 | |
---|
205 | def __init__( self, config ): |
---|
206 | self.config = config |
---|
207 | self.parseValues() |
---|
208 | |
---|
209 | def parseValues(self): |
---|
210 | "Parse certain values from gmetad.conf" |
---|
211 | |
---|
212 | readcfg = open( self.config, 'r' ) |
---|
213 | |
---|
214 | for line in readcfg.readlines(): |
---|
215 | |
---|
216 | if line.count( '"' ) > 1: |
---|
217 | |
---|
218 | if line.find( 'data_source' ) != -1 and line[0] != '#': |
---|
219 | |
---|
220 | source = { } |
---|
221 | source['name'] = line.split( '"' )[1] |
---|
222 | source_words = line.split( '"' )[2].split( ' ' ) |
---|
223 | |
---|
224 | for word in source_words: |
---|
225 | |
---|
226 | valid_interval = 1 |
---|
227 | |
---|
228 | for letter in word: |
---|
229 | if letter not in string.digits: |
---|
230 | valid_interval = 0 |
---|
231 | |
---|
232 | if valid_interval and len(word) > 0: |
---|
233 | source['interval'] = word |
---|
234 | debug_msg( 9, 'polling interval for %s = %s' %(source['name'], source['interval'] ) ) |
---|
235 | |
---|
236 | # No interval found, use Ganglia's default |
---|
237 | if not source.has_key( 'interval' ): |
---|
238 | source['interval'] = 15 |
---|
239 | debug_msg( 9, 'polling interval for %s defaulted to 15' %(source['name']) ) |
---|
240 | |
---|
241 | self.sources.append( source ) |
---|
242 | |
---|
243 | def getInterval( self, source_name ): |
---|
244 | for source in self.sources: |
---|
245 | if source['name'] == source_name: |
---|
246 | return source['interval'] |
---|
247 | return None |
---|
248 | |
---|
249 | class RRDHandler: |
---|
250 | |
---|
251 | def __init__( self, cluster ): |
---|
252 | self.cluster = cluster |
---|
253 | |
---|
254 | self.gmetad_conf = GangliaConfigParser( GMETAD_CONF ) |
---|
255 | |
---|
256 | def createCheck( self, host, metric ): |
---|
257 | "Check if an .rrd allready exists for this metric, create if not" |
---|
258 | |
---|
259 | rrd_parameters = [ ] |
---|
260 | rrd_dir = '%s/%s/%s' %( check_dir(ARCHIVE_PATH), self.cluster, host ) |
---|
261 | |
---|
262 | if not os.path.exists( rrd_dir ): |
---|
263 | os.makedirs( rrd_dir ) |
---|
264 | |
---|
265 | rrd_file = '%s/%s.rrd' %( rrd_dir, metric['name'] ) |
---|
266 | |
---|
267 | interval = self.gmetad_conf.getInterval( self.cluster ) |
---|
268 | heartbeat = 8 * int(interval) |
---|
269 | |
---|
270 | rrd_parameters.append( '--step' ) |
---|
271 | rrd_parameters.append( interval ) |
---|
272 | |
---|
273 | rrd_parameters.append( '--start' ) |
---|
274 | rrd_parameters.append( metric['time'] ) |
---|
275 | |
---|
276 | print rrd_parameters |
---|
277 | |
---|
278 | def update( self, metric, timestamp, val ): |
---|
279 | |
---|
280 | pass |
---|
281 | |
---|
282 | #rrd.update( bla ) |
---|
283 | |
---|
284 | |
---|
285 | def main(): |
---|
286 | "Program startup" |
---|
287 | |
---|
288 | myProcessor = GangliaXMLProcessor() |
---|
289 | myProcessor.processXML() |
---|
290 | |
---|
291 | def check_dir( directory ): |
---|
292 | "Check if directory is a proper directory. I.e.: Does _not_ end with a '/'" |
---|
293 | |
---|
294 | if directory[-1] == '/': |
---|
295 | directory = directory[:-1] |
---|
296 | |
---|
297 | return directory |
---|
298 | |
---|
299 | def debug_msg( level, msg ): |
---|
300 | |
---|
301 | if (DEBUG_LEVEL >= level): |
---|
302 | sys.stderr.write( msg + '\n' ) |
---|
303 | |
---|
304 | # Let's go |
---|
305 | if __name__ == '__main__': |
---|
306 | main() |
---|