[3] | 1 | #!/usr/bin/env python |
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| 2 | |
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[5] | 3 | from xml.sax import make_parser |
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| 4 | from xml.sax.handler import ContentHandler |
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| 5 | import socket |
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| 6 | import sys |
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[9] | 7 | import string |
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[12] | 8 | import os |
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| 9 | import os.path |
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[17] | 10 | import time |
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[36] | 11 | import threading |
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[38] | 12 | import random |
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[40] | 13 | from types import * |
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[60] | 14 | import DBClass |
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[3] | 15 | |
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[8] | 16 | # Specify debugging level here; |
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| 17 | # |
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[38] | 18 | # 11 = XML: metrics |
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| 19 | # 10 = XML: host, cluster, grid, ganglia |
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| 20 | # 9 = RRD activity, gmetad config parsing |
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[40] | 21 | # 8 = RRD file activity |
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| 22 | # 7 = daemon threading |
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[8] | 23 | # |
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[55] | 24 | DEBUG_LEVEL = 7 |
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[6] | 25 | |
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[9] | 26 | # Where is the gmetad.conf located |
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| 27 | # |
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| 28 | GMETAD_CONF = '/etc/gmetad.conf' |
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| 29 | |
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[60] | 30 | # Where to grab XML data from |
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| 31 | # Normally: local gmetad (port 8651) |
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| 32 | # |
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[63] | 33 | # Syntax: <hostname>:<port> |
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| 34 | # |
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| 35 | ARCHIVE_XMLSOURCE = "localhost:8651" |
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[60] | 36 | |
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[9] | 37 | # List of data_source names to archive for |
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| 38 | # |
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[63] | 39 | # Syntax: [ "<clustername>", "<clustername>" ] |
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| 40 | # |
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[60] | 41 | ARCHIVE_DATASOURCES = [ "LISA Cluster" ] |
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[9] | 42 | |
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[60] | 43 | # Where to store the archived rrd's |
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| 44 | # |
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| 45 | ARCHIVE_PATH = '/data/toga/rrds' |
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| 46 | |
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[13] | 47 | # Amount of hours to store in one single archived .rrd |
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[9] | 48 | # |
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[43] | 49 | ARCHIVE_HOURS_PER_RRD = 12 |
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[13] | 50 | |
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[63] | 51 | # Toga's SQL dbase to use |
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[60] | 52 | # |
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[63] | 53 | # Syntax: <hostname>/<database> |
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[60] | 54 | # |
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[63] | 55 | TOGA_SQL_DBASE = "localhost/toga" |
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[60] | 56 | |
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[22] | 57 | # Wether or not to run as a daemon in background |
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| 58 | # |
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| 59 | DAEMONIZE = 0 |
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| 60 | |
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[17] | 61 | ###################### |
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| 62 | # # |
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| 63 | # Configuration ends # |
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| 64 | # # |
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| 65 | ###################### |
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[13] | 66 | |
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[60] | 67 | ### |
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| 68 | # You'll only want to change anything below here unless you |
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[63] | 69 | # know what you are doing (i.e. your name is Ramon Bastiaans :D ) |
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[60] | 70 | ### |
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| 71 | |
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[17] | 72 | # What XML data types not to store |
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[13] | 73 | # |
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[17] | 74 | UNSUPPORTED_ARCHIVE_TYPES = [ 'string' ] |
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[9] | 75 | |
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[47] | 76 | # Maximum time (in seconds) a parsethread may run |
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| 77 | # |
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| 78 | PARSE_TIMEOUT = 60 |
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| 79 | |
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| 80 | # Maximum time (in seconds) a storethread may run |
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| 81 | # |
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| 82 | STORE_TIMEOUT = 360 |
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| 83 | |
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[8] | 84 | """ |
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| 85 | This is TOrque-GAnglia's data Daemon |
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| 86 | """ |
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| 87 | |
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[37] | 88 | class RRDMutator: |
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[63] | 89 | """A class for performing RRD mutations""" |
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[37] | 90 | |
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| 91 | binary = '/usr/bin/rrdtool' |
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| 92 | |
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| 93 | def __init__( self, binary=None ): |
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[63] | 94 | """Set alternate binary if supplied""" |
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[37] | 95 | |
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| 96 | if binary: |
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| 97 | self.binary = binary |
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| 98 | |
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| 99 | def create( self, filename, args ): |
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[63] | 100 | """Create a new rrd with args""" |
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| 101 | |
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[40] | 102 | return self.perform( 'create', '"' + filename + '"', args ) |
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[37] | 103 | |
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| 104 | def update( self, filename, args ): |
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[63] | 105 | """Update a rrd with args""" |
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| 106 | |
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[40] | 107 | return self.perform( 'update', '"' + filename + '"', args ) |
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[37] | 108 | |
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[42] | 109 | def grabLastUpdate( self, filename ): |
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[63] | 110 | """Determine the last update time of filename rrd""" |
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[42] | 111 | |
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| 112 | last_update = 0 |
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| 113 | |
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[53] | 114 | debug_msg( 8, self.binary + ' info "' + filename + '"' ) |
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| 115 | |
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[42] | 116 | for line in os.popen( self.binary + ' info "' + filename + '"' ).readlines(): |
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| 117 | |
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| 118 | if line.find( 'last_update') != -1: |
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| 119 | |
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| 120 | last_update = line.split( ' = ' )[1] |
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| 121 | |
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| 122 | if last_update: |
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| 123 | return last_update |
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| 124 | else: |
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| 125 | return 0 |
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| 126 | |
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[40] | 127 | def perform( self, action, filename, args ): |
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[63] | 128 | """Perform action on rrd filename with args""" |
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[37] | 129 | |
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| 130 | arg_string = None |
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| 131 | |
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[40] | 132 | if type( args ) is not ListType: |
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| 133 | debug_msg( 8, 'Arguments needs to be of type List' ) |
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| 134 | return 1 |
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| 135 | |
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[37] | 136 | for arg in args: |
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| 137 | |
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| 138 | if not arg_string: |
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| 139 | |
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| 140 | arg_string = arg |
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| 141 | else: |
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| 142 | arg_string = arg_string + ' ' + arg |
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| 143 | |
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[54] | 144 | debug_msg( 8, self.binary + ' ' + action + ' ' + filename + ' ' + arg_string ) |
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[37] | 145 | |
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[40] | 146 | for line in os.popen( self.binary + ' ' + action + ' ' + filename + ' ' + arg_string ).readlines(): |
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[37] | 147 | |
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| 148 | if line.find( 'ERROR' ) != -1: |
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| 149 | |
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| 150 | error_msg = string.join( line.split( ' ' )[1:] ) |
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[40] | 151 | debug_msg( 8, error_msg ) |
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[37] | 152 | return 1 |
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| 153 | |
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| 154 | return 0 |
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| 155 | |
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[63] | 156 | class TorqueXMLHandler( ContentHandler ): |
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| 157 | """Parse Torque's jobinfo XML from our plugin""" |
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| 158 | |
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| 159 | def __init__( self ): |
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| 160 | |
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| 161 | pass |
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| 162 | |
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| 163 | def startElement( self, name, attrs ): |
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| 164 | """ |
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| 165 | This XML will be all gmetric XML |
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| 166 | so there will be no specific start/end element |
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| 167 | just one XML statement with all info |
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| 168 | """ |
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| 169 | |
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| 170 | heartbeat = 0 |
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| 171 | |
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| 172 | if name == 'METRIC': |
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| 173 | |
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| 174 | metricname = attrss.get( 'NAME', "" ) |
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| 175 | |
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| 176 | if metricname == 'TOGA-HEARTBEAT': |
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| 177 | |
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| 178 | if not self.heartbeat: |
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| 179 | self.heartbeat = attrs.get( 'VAL', "" ) |
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| 180 | |
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| 181 | if metricname.find( 'TOGA-JOB' ) != -1: |
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| 182 | |
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| 183 | job_id = name.split( 'TOGA-JOB-' )[1] |
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| 184 | val = attrs.get( 'VAL', "" ) |
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| 185 | |
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| 186 | valinfo = val.split( ' ' ) |
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| 187 | |
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| 188 | for myval in valinfo: |
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| 189 | |
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| 190 | name = valinfo.split( '=' )[0] |
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| 191 | value = valinfo.split( '=' )[1] |
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| 192 | |
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[6] | 193 | class GangliaXMLHandler( ContentHandler ): |
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[63] | 194 | """Parse Ganglia's XML""" |
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[3] | 195 | |
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[33] | 196 | def __init__( self, config ): |
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[63] | 197 | """Setup initial variables and gather info on existing rrd archive""" |
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| 198 | |
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[33] | 199 | self.config = config |
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[35] | 200 | self.clusters = { } |
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[54] | 201 | debug_msg( 0, printTime() + ' - Checking existing toga rrd archive..' ) |
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[44] | 202 | self.gatherClusters() |
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[54] | 203 | debug_msg( 0, printTime() + ' - Check done.' ) |
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[33] | 204 | |
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[44] | 205 | def gatherClusters( self ): |
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[63] | 206 | """Find all existing clusters in archive dir""" |
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[44] | 207 | |
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[45] | 208 | archive_dir = check_dir(ARCHIVE_PATH) |
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[44] | 209 | |
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| 210 | hosts = [ ] |
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| 211 | |
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| 212 | if os.path.exists( archive_dir ): |
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| 213 | |
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| 214 | dirlist = os.listdir( archive_dir ) |
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| 215 | |
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| 216 | for item in dirlist: |
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| 217 | |
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| 218 | clustername = item |
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| 219 | |
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[60] | 220 | if not self.clusters.has_key( clustername ) and clustername in ARCHIVE_DATASOURCES: |
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[44] | 221 | |
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| 222 | self.clusters[ clustername ] = RRDHandler( self.config, clustername ) |
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| 223 | |
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[6] | 224 | def startElement( self, name, attrs ): |
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[63] | 225 | """Memorize appropriate data from xml start tags""" |
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[3] | 226 | |
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[7] | 227 | if name == 'GANGLIA_XML': |
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[32] | 228 | |
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| 229 | self.XMLSource = attrs.get( 'SOURCE', "" ) |
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| 230 | self.gangliaVersion = attrs.get( 'VERSION', "" ) |
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| 231 | |
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[12] | 232 | debug_msg( 10, 'Found XML data: source %s version %s' %( self.XMLSource, self.gangliaVersion ) ) |
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[6] | 233 | |
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[7] | 234 | elif name == 'GRID': |
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[32] | 235 | |
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| 236 | self.gridName = attrs.get( 'NAME', "" ) |
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| 237 | self.time = attrs.get( 'LOCALTIME', "" ) |
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| 238 | |
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[12] | 239 | debug_msg( 10, '`-Grid found: %s' %( self.gridName ) ) |
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[6] | 240 | |
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[7] | 241 | elif name == 'CLUSTER': |
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[32] | 242 | |
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| 243 | self.clusterName = attrs.get( 'NAME', "" ) |
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| 244 | self.time = attrs.get( 'LOCALTIME', "" ) |
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| 245 | |
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[60] | 246 | if not self.clusters.has_key( self.clusterName ) and self.clusterName in ARCHIVE_DATASOURCES: |
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[32] | 247 | |
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[34] | 248 | self.clusters[ self.clusterName ] = RRDHandler( self.config, self.clusterName ) |
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[33] | 249 | |
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[35] | 250 | debug_msg( 10, ' |-Cluster found: %s' %( self.clusterName ) ) |
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[6] | 251 | |
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[60] | 252 | elif name == 'HOST' and self.clusterName in ARCHIVE_DATASOURCES: |
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[32] | 253 | |
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| 254 | self.hostName = attrs.get( 'NAME', "" ) |
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| 255 | self.hostIp = attrs.get( 'IP', "" ) |
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| 256 | self.hostReported = attrs.get( 'REPORTED', "" ) |
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| 257 | |
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[12] | 258 | debug_msg( 10, ' | |-Host found: %s - ip %s reported %s' %( self.hostName, self.hostIp, self.hostReported ) ) |
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[6] | 259 | |
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[60] | 260 | elif name == 'METRIC' and self.clusterName in ARCHIVE_DATASOURCES: |
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[6] | 261 | |
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[32] | 262 | type = attrs.get( 'TYPE', "" ) |
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[6] | 263 | |
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[32] | 264 | if type not in UNSUPPORTED_ARCHIVE_TYPES: |
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[3] | 265 | |
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[32] | 266 | myMetric = { } |
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| 267 | myMetric['name'] = attrs.get( 'NAME', "" ) |
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| 268 | myMetric['val'] = attrs.get( 'VAL', "" ) |
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| 269 | myMetric['time'] = self.hostReported |
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[3] | 270 | |
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[34] | 271 | self.clusters[ self.clusterName ].memMetric( self.hostName, myMetric ) |
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[3] | 272 | |
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[34] | 273 | debug_msg( 11, ' | | |-metric: %s:%s' %( myMetric['name'], myMetric['val'] ) ) |
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[6] | 274 | |
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[34] | 275 | def storeMetrics( self ): |
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[63] | 276 | """Store metrics of each cluster rrd handler""" |
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[9] | 277 | |
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[34] | 278 | for clustername, rrdh in self.clusters.items(): |
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[16] | 279 | |
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[38] | 280 | ret = rrdh.storeMetrics() |
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[9] | 281 | |
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[38] | 282 | if ret: |
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| 283 | debug_msg( 9, 'An error occured while storing metrics for cluster %s' %clustername ) |
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| 284 | return 1 |
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| 285 | |
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| 286 | return 0 |
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| 287 | |
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[5] | 288 | class GangliaXMLGatherer: |
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[63] | 289 | """Setup a connection and file object to Ganglia's XML""" |
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[3] | 290 | |
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[8] | 291 | s = None |
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| 292 | |
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| 293 | def __init__( self, host, port ): |
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[63] | 294 | """Store host and port for connection""" |
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[8] | 295 | |
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[5] | 296 | self.host = host |
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| 297 | self.port = port |
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[33] | 298 | self.connect() |
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[3] | 299 | |
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[33] | 300 | def connect( self ): |
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[63] | 301 | """Setup connection to XML source""" |
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[8] | 302 | |
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| 303 | for res in socket.getaddrinfo( self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM ): |
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[32] | 304 | |
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[5] | 305 | af, socktype, proto, canonname, sa = res |
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[32] | 306 | |
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[5] | 307 | try: |
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[32] | 308 | |
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[8] | 309 | self.s = socket.socket( af, socktype, proto ) |
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[32] | 310 | |
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[5] | 311 | except socket.error, msg: |
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[32] | 312 | |
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[8] | 313 | self.s = None |
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[5] | 314 | continue |
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[32] | 315 | |
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[5] | 316 | try: |
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[32] | 317 | |
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[8] | 318 | self.s.connect( sa ) |
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[32] | 319 | |
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[5] | 320 | except socket.error, msg: |
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[32] | 321 | |
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[8] | 322 | self.s.close() |
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| 323 | self.s = None |
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[5] | 324 | continue |
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[32] | 325 | |
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[5] | 326 | break |
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[3] | 327 | |
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[8] | 328 | if self.s is None: |
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[32] | 329 | |
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[33] | 330 | debug_msg( 0, 'Could not open socket' ) |
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| 331 | sys.exit( 1 ) |
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[5] | 332 | |
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[33] | 333 | def disconnect( self ): |
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[63] | 334 | """Close socket""" |
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[33] | 335 | |
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| 336 | if self.s: |
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| 337 | self.s.close() |
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| 338 | self.s = None |
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| 339 | |
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| 340 | def __del__( self ): |
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[63] | 341 | """Kill the socket before we leave""" |
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[33] | 342 | |
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| 343 | self.disconnect() |
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| 344 | |
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| 345 | def getFileObject( self ): |
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[63] | 346 | """Connect, and return a file object""" |
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[33] | 347 | |
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[38] | 348 | if self.s: |
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| 349 | # Apearantly, only data is received when a connection is made |
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| 350 | # therefor, disconnect and connect |
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| 351 | # |
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| 352 | self.disconnect() |
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| 353 | self.connect() |
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[33] | 354 | |
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[8] | 355 | return self.s.makefile( 'r' ) |
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[5] | 356 | |
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[8] | 357 | class GangliaXMLProcessor: |
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[63] | 358 | """Main class for processing XML and acting with it""" |
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[5] | 359 | |
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[33] | 360 | def __init__( self ): |
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[63] | 361 | """Setup initial XML connection and handlers""" |
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[33] | 362 | |
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| 363 | self.config = GangliaConfigParser( GMETAD_CONF ) |
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| 364 | |
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[63] | 365 | self.myXMLGatherer = GangliaXMLGatherer( ARCHIVE_XMLSOURCE.split( ':' )[0], ARCHIVE_XMLSOURCE.split( ':' )[1] ) |
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[33] | 366 | self.myParser = make_parser() |
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| 367 | self.myHandler = GangliaXMLHandler( self.config ) |
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| 368 | self.myParser.setContentHandler( self.myHandler ) |
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| 369 | |
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[9] | 370 | def daemon( self ): |
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[63] | 371 | """Run as daemon forever""" |
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[5] | 372 | |
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[8] | 373 | # Fork the first child |
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| 374 | # |
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| 375 | pid = os.fork() |
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[32] | 376 | |
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[8] | 377 | if pid > 0: |
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[7] | 378 | |
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[32] | 379 | sys.exit(0) # end parent |
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| 380 | |
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[8] | 381 | # creates a session and sets the process group ID |
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| 382 | # |
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| 383 | os.setsid() |
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[7] | 384 | |
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[8] | 385 | # Fork the second child |
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| 386 | # |
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| 387 | pid = os.fork() |
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[32] | 388 | |
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[8] | 389 | if pid > 0: |
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[5] | 390 | |
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[32] | 391 | sys.exit(0) # end parent |
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| 392 | |
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[8] | 393 | # Go to the root directory and set the umask |
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| 394 | # |
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| 395 | os.chdir('/') |
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| 396 | os.umask(0) |
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| 397 | |
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| 398 | sys.stdin.close() |
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| 399 | sys.stdout.close() |
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[36] | 400 | #sys.stderr.close() |
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[8] | 401 | |
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| 402 | os.open('/dev/null', 0) |
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| 403 | os.dup(0) |
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| 404 | os.dup(0) |
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| 405 | |
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| 406 | self.run() |
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| 407 | |
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[22] | 408 | def printTime( self ): |
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[63] | 409 | """Print current time in human readable format for logging""" |
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[22] | 410 | |
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[33] | 411 | return time.strftime("%a %d %b %Y %H:%M:%S") |
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[22] | 412 | |
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[9] | 413 | def run( self ): |
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[63] | 414 | """Main XML processing; start a xml and storethread""" |
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[8] | 415 | |
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[36] | 416 | xmlthread = threading.Thread( None, self.processXML, 'xmlthread' ) |
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[55] | 417 | storethread = threading.Thread( None, self.storeMetrics, 'storethread' ) |
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[22] | 418 | |
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[36] | 419 | while( 1 ): |
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| 420 | |
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| 421 | if not xmlthread.isAlive(): |
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| 422 | # Gather XML at the same interval as gmetad |
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| 423 | |
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| 424 | # threaded call to: self.processXML() |
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| 425 | # |
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| 426 | xmlthread = threading.Thread( None, self.processXML, 'xmlthread' ) |
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| 427 | xmlthread.start() |
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| 428 | |
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[55] | 429 | if not storethread.isAlive(): |
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| 430 | # Store metrics every .. sec |
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[36] | 431 | |
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[55] | 432 | # threaded call to: self.storeMetrics() |
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| 433 | # |
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| 434 | storethread = threading.Thread( None, self.storeMetrics, 'storethread' ) |
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| 435 | storethread.start() |
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[36] | 436 | |
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| 437 | # Just sleep a sec here, to prevent daemon from going mad. We're all threads here anyway |
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| 438 | time.sleep( 1 ) |
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| 439 | |
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[33] | 440 | def storeMetrics( self ): |
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[63] | 441 | """Store metrics retained in memory to disk""" |
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[22] | 442 | |
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[40] | 443 | debug_msg( 7, self.printTime() + ' - storethread(): started.' ) |
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[39] | 444 | |
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[63] | 445 | # Store metrics somewhere between every 360 and 640 seconds |
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[38] | 446 | # |
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[55] | 447 | STORE_INTERVAL = random.randint( 360, 640 ) |
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[22] | 448 | |
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[39] | 449 | storethread = threading.Thread( None, self.storeThread, 'storemetricthread' ) |
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[36] | 450 | storethread.start() |
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| 451 | |
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[40] | 452 | debug_msg( 7, self.printTime() + ' - storethread(): Sleeping.. (%ss)' %STORE_INTERVAL ) |
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[36] | 453 | time.sleep( STORE_INTERVAL ) |
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[40] | 454 | debug_msg( 7, self.printTime() + ' - storethread(): Done sleeping.' ) |
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[36] | 455 | |
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| 456 | if storethread.isAlive(): |
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| 457 | |
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[40] | 458 | debug_msg( 7, self.printTime() + ' - storethread(): storemetricthread() still running, waiting to finish..' ) |
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[47] | 459 | storethread.join( STORE_TIMEOUT ) # Maximum time is for storing thread to finish |
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[40] | 460 | debug_msg( 7, self.printTime() + ' - storethread(): Done waiting.' ) |
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[36] | 461 | |
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[40] | 462 | debug_msg( 7, self.printTime() + ' - storethread(): finished.' ) |
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[36] | 463 | |
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| 464 | return 0 |
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| 465 | |
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[39] | 466 | def storeThread( self ): |
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[63] | 467 | """Actual metric storing thread""" |
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[39] | 468 | |
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[40] | 469 | debug_msg( 7, self.printTime() + ' - storemetricthread(): started.' ) |
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| 470 | debug_msg( 7, self.printTime() + ' - storemetricthread(): Storing data..' ) |
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[39] | 471 | ret = self.myHandler.storeMetrics() |
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[40] | 472 | debug_msg( 7, self.printTime() + ' - storemetricthread(): Done storing.' ) |
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| 473 | debug_msg( 7, self.printTime() + ' - storemetricthread(): finished.' ) |
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[39] | 474 | |
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| 475 | return ret |
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| 476 | |
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[8] | 477 | def processXML( self ): |
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[63] | 478 | """Process XML""" |
---|
[8] | 479 | |
---|
[40] | 480 | debug_msg( 7, self.printTime() + ' - xmlthread(): started.' ) |
---|
[8] | 481 | |
---|
[39] | 482 | parsethread = threading.Thread( None, self.parseThread, 'parsethread' ) |
---|
[36] | 483 | parsethread.start() |
---|
| 484 | |
---|
[40] | 485 | debug_msg( 7, self.printTime() + ' - xmlthread(): Sleeping.. (%ss)' %self.config.getLowestInterval() ) |
---|
[36] | 486 | time.sleep( float( self.config.getLowestInterval() ) ) |
---|
[40] | 487 | debug_msg( 7, self.printTime() + ' - xmlthread(): Done sleeping.' ) |
---|
[36] | 488 | |
---|
| 489 | if parsethread.isAlive(): |
---|
| 490 | |
---|
[40] | 491 | debug_msg( 7, self.printTime() + ' - xmlthread(): parsethread() still running, waiting to finish..' ) |
---|
[47] | 492 | parsethread.join( PARSE_TIMEOUT ) # Maximum time for XML thread to finish |
---|
[40] | 493 | debug_msg( 7, self.printTime() + ' - xmlthread(): Done waiting.' ) |
---|
[36] | 494 | |
---|
[40] | 495 | debug_msg( 7, self.printTime() + ' - xmlthread(): finished.' ) |
---|
[36] | 496 | |
---|
| 497 | return 0 |
---|
| 498 | |
---|
[39] | 499 | def parseThread( self ): |
---|
[63] | 500 | """Actual parsing thread""" |
---|
[39] | 501 | |
---|
[40] | 502 | debug_msg( 7, self.printTime() + ' - parsethread(): started.' ) |
---|
| 503 | debug_msg( 7, self.printTime() + ' - parsethread(): Parsing XML..' ) |
---|
[39] | 504 | ret = self.myParser.parse( self.myXMLGatherer.getFileObject() ) |
---|
[40] | 505 | debug_msg( 7, self.printTime() + ' - parsethread(): Done parsing.' ) |
---|
| 506 | debug_msg( 7, self.printTime() + ' - parsethread(): finished.' ) |
---|
[39] | 507 | |
---|
| 508 | return ret |
---|
| 509 | |
---|
[9] | 510 | class GangliaConfigParser: |
---|
| 511 | |
---|
[34] | 512 | sources = [ ] |
---|
[9] | 513 | |
---|
| 514 | def __init__( self, config ): |
---|
[63] | 515 | """Parse some stuff from our gmetad's config, such as polling interval""" |
---|
[32] | 516 | |
---|
[9] | 517 | self.config = config |
---|
| 518 | self.parseValues() |
---|
| 519 | |
---|
[32] | 520 | def parseValues( self ): |
---|
[63] | 521 | """Parse certain values from gmetad.conf""" |
---|
[9] | 522 | |
---|
| 523 | readcfg = open( self.config, 'r' ) |
---|
| 524 | |
---|
| 525 | for line in readcfg.readlines(): |
---|
| 526 | |
---|
| 527 | if line.count( '"' ) > 1: |
---|
| 528 | |
---|
[10] | 529 | if line.find( 'data_source' ) != -1 and line[0] != '#': |
---|
[9] | 530 | |
---|
[11] | 531 | source = { } |
---|
| 532 | source['name'] = line.split( '"' )[1] |
---|
[9] | 533 | source_words = line.split( '"' )[2].split( ' ' ) |
---|
| 534 | |
---|
| 535 | for word in source_words: |
---|
| 536 | |
---|
| 537 | valid_interval = 1 |
---|
| 538 | |
---|
| 539 | for letter in word: |
---|
[32] | 540 | |
---|
[9] | 541 | if letter not in string.digits: |
---|
[32] | 542 | |
---|
[9] | 543 | valid_interval = 0 |
---|
| 544 | |
---|
[10] | 545 | if valid_interval and len(word) > 0: |
---|
[32] | 546 | |
---|
[9] | 547 | source['interval'] = word |
---|
[12] | 548 | debug_msg( 9, 'polling interval for %s = %s' %(source['name'], source['interval'] ) ) |
---|
[33] | 549 | |
---|
| 550 | # No interval found, use Ganglia's default |
---|
| 551 | if not source.has_key( 'interval' ): |
---|
| 552 | source['interval'] = 15 |
---|
| 553 | debug_msg( 9, 'polling interval for %s defaulted to 15' %(source['name']) ) |
---|
[32] | 554 | |
---|
[33] | 555 | self.sources.append( source ) |
---|
[9] | 556 | |
---|
| 557 | def getInterval( self, source_name ): |
---|
[63] | 558 | """Return interval for source_name""" |
---|
[32] | 559 | |
---|
[9] | 560 | for source in self.sources: |
---|
[32] | 561 | |
---|
[12] | 562 | if source['name'] == source_name: |
---|
[32] | 563 | |
---|
[9] | 564 | return source['interval'] |
---|
[32] | 565 | |
---|
[9] | 566 | return None |
---|
| 567 | |
---|
[34] | 568 | def getLowestInterval( self ): |
---|
[63] | 569 | """Return the lowest interval of all clusters""" |
---|
[34] | 570 | |
---|
| 571 | lowest_interval = 0 |
---|
| 572 | |
---|
| 573 | for source in self.sources: |
---|
| 574 | |
---|
| 575 | if not lowest_interval or source['interval'] <= lowest_interval: |
---|
| 576 | |
---|
| 577 | lowest_interval = source['interval'] |
---|
| 578 | |
---|
| 579 | # Return 15 when nothing is found, so that the daemon won't go insane with 0 sec delays |
---|
| 580 | if lowest_interval: |
---|
| 581 | return lowest_interval |
---|
| 582 | else: |
---|
| 583 | return 15 |
---|
| 584 | |
---|
[9] | 585 | class RRDHandler: |
---|
[63] | 586 | """Class for handling RRD activity""" |
---|
[9] | 587 | |
---|
[32] | 588 | myMetrics = { } |
---|
[40] | 589 | lastStored = { } |
---|
[47] | 590 | timeserials = { } |
---|
[36] | 591 | slot = None |
---|
[32] | 592 | |
---|
[33] | 593 | def __init__( self, config, cluster ): |
---|
[63] | 594 | """Setup initial variables""" |
---|
[44] | 595 | self.block = 0 |
---|
[9] | 596 | self.cluster = cluster |
---|
[33] | 597 | self.config = config |
---|
[40] | 598 | self.slot = threading.Lock() |
---|
[37] | 599 | self.rrdm = RRDMutator() |
---|
[42] | 600 | self.gatherLastUpdates() |
---|
[9] | 601 | |
---|
[42] | 602 | def gatherLastUpdates( self ): |
---|
[63] | 603 | """Populate the lastStored list, containing timestamps of all last updates""" |
---|
[42] | 604 | |
---|
| 605 | cluster_dir = '%s/%s' %( check_dir(ARCHIVE_PATH), self.cluster ) |
---|
| 606 | |
---|
| 607 | hosts = [ ] |
---|
| 608 | |
---|
| 609 | if os.path.exists( cluster_dir ): |
---|
| 610 | |
---|
[44] | 611 | dirlist = os.listdir( cluster_dir ) |
---|
[42] | 612 | |
---|
[44] | 613 | for dir in dirlist: |
---|
[42] | 614 | |
---|
[44] | 615 | hosts.append( dir ) |
---|
[42] | 616 | |
---|
| 617 | for host in hosts: |
---|
| 618 | |
---|
[47] | 619 | host_dir = cluster_dir + '/' + host |
---|
| 620 | dirlist = os.listdir( host_dir ) |
---|
| 621 | |
---|
| 622 | for dir in dirlist: |
---|
| 623 | |
---|
| 624 | if not self.timeserials.has_key( host ): |
---|
| 625 | |
---|
| 626 | self.timeserials[ host ] = [ ] |
---|
| 627 | |
---|
| 628 | self.timeserials[ host ].append( dir ) |
---|
| 629 | |
---|
[42] | 630 | last_serial = self.getLastRrdTimeSerial( host ) |
---|
| 631 | if last_serial: |
---|
| 632 | |
---|
| 633 | metric_dir = cluster_dir + '/' + host + '/' + last_serial |
---|
| 634 | if os.path.exists( metric_dir ): |
---|
| 635 | |
---|
[44] | 636 | dirlist = os.listdir( metric_dir ) |
---|
[42] | 637 | |
---|
[44] | 638 | for file in dirlist: |
---|
[42] | 639 | |
---|
[44] | 640 | metricname = file.split( '.rrd' )[0] |
---|
[42] | 641 | |
---|
[44] | 642 | if not self.lastStored.has_key( host ): |
---|
[42] | 643 | |
---|
[44] | 644 | self.lastStored[ host ] = { } |
---|
[42] | 645 | |
---|
[44] | 646 | self.lastStored[ host ][ metricname ] = self.rrdm.grabLastUpdate( metric_dir + '/' + file ) |
---|
[42] | 647 | |
---|
[32] | 648 | def getClusterName( self ): |
---|
[63] | 649 | """Return clustername""" |
---|
| 650 | |
---|
[32] | 651 | return self.cluster |
---|
| 652 | |
---|
| 653 | def memMetric( self, host, metric ): |
---|
[63] | 654 | """Store metric from host in memory""" |
---|
[32] | 655 | |
---|
[34] | 656 | if self.myMetrics.has_key( host ): |
---|
[32] | 657 | |
---|
[34] | 658 | if self.myMetrics[ host ].has_key( metric['name'] ): |
---|
[32] | 659 | |
---|
[34] | 660 | for mymetric in self.myMetrics[ host ][ metric['name'] ]: |
---|
[32] | 661 | |
---|
[34] | 662 | if mymetric['time'] == metric['time']: |
---|
[32] | 663 | |
---|
[34] | 664 | # Allready have this metric, abort |
---|
| 665 | return 1 |
---|
| 666 | else: |
---|
| 667 | self.myMetrics[ host ][ metric['name'] ] = [ ] |
---|
| 668 | else: |
---|
[32] | 669 | self.myMetrics[ host ] = { } |
---|
[34] | 670 | self.myMetrics[ host ][ metric['name'] ] = [ ] |
---|
[32] | 671 | |
---|
[63] | 672 | # Push new metric onto stack |
---|
| 673 | # atomic code; only 1 thread at a time may access the stack |
---|
| 674 | |
---|
[53] | 675 | # <ATOMIC> |
---|
[40] | 676 | # |
---|
| 677 | self.slot.acquire() |
---|
| 678 | |
---|
[32] | 679 | self.myMetrics[ host ][ metric['name'] ].append( metric ) |
---|
| 680 | |
---|
[40] | 681 | self.slot.release() |
---|
[53] | 682 | # |
---|
| 683 | # </ATOMIC> |
---|
[40] | 684 | |
---|
[47] | 685 | def makeUpdateList( self, host, metriclist ): |
---|
[63] | 686 | """ |
---|
| 687 | Make a list of update values for rrdupdate |
---|
| 688 | but only those that we didn't store before |
---|
| 689 | """ |
---|
[37] | 690 | |
---|
| 691 | update_list = [ ] |
---|
[41] | 692 | metric = None |
---|
[37] | 693 | |
---|
[47] | 694 | while len( metriclist ) > 0: |
---|
[37] | 695 | |
---|
[53] | 696 | metric = metriclist.pop( 0 ) |
---|
[37] | 697 | |
---|
[53] | 698 | if self.checkStoreMetric( host, metric ): |
---|
| 699 | update_list.append( '%s:%s' %( metric['time'], metric['val'] ) ) |
---|
[40] | 700 | |
---|
[37] | 701 | return update_list |
---|
| 702 | |
---|
[49] | 703 | def checkStoreMetric( self, host, metric ): |
---|
[63] | 704 | """Check if supplied metric if newer than last one stored""" |
---|
[40] | 705 | |
---|
| 706 | if self.lastStored.has_key( host ): |
---|
| 707 | |
---|
[47] | 708 | if self.lastStored[ host ].has_key( metric['name'] ): |
---|
[40] | 709 | |
---|
[47] | 710 | if metric['time'] <= self.lastStored[ host ][ metric['name'] ]: |
---|
[40] | 711 | |
---|
[50] | 712 | # This is old |
---|
[40] | 713 | return 0 |
---|
| 714 | |
---|
[50] | 715 | return 1 |
---|
| 716 | |
---|
[54] | 717 | def memLastUpdate( self, host, metricname, metriclist ): |
---|
[63] | 718 | """ |
---|
| 719 | Memorize the time of the latest metric from metriclist |
---|
| 720 | but only if it wasn't allready memorized |
---|
| 721 | """ |
---|
[50] | 722 | |
---|
[54] | 723 | if not self.lastStored.has_key( host ): |
---|
| 724 | self.lastStored[ host ] = { } |
---|
| 725 | |
---|
[50] | 726 | last_update_time = 0 |
---|
| 727 | |
---|
| 728 | for metric in metriclist: |
---|
| 729 | |
---|
[54] | 730 | if metric['name'] == metricname: |
---|
[50] | 731 | |
---|
[54] | 732 | if metric['time'] > last_update_time: |
---|
[50] | 733 | |
---|
[54] | 734 | last_update_time = metric['time'] |
---|
[40] | 735 | |
---|
[54] | 736 | if self.lastStored[ host ].has_key( metricname ): |
---|
[52] | 737 | |
---|
[54] | 738 | if last_update_time <= self.lastStored[ host ][ metricname ]: |
---|
[52] | 739 | return 1 |
---|
[40] | 740 | |
---|
[54] | 741 | self.lastStored[ host ][ metricname ] = last_update_time |
---|
[52] | 742 | |
---|
[33] | 743 | def storeMetrics( self ): |
---|
[63] | 744 | """ |
---|
| 745 | Store all metrics from memory to disk |
---|
| 746 | and do it to the RRD's in appropriate timeperiod directory |
---|
| 747 | """ |
---|
[33] | 748 | |
---|
| 749 | for hostname, mymetrics in self.myMetrics.items(): |
---|
| 750 | |
---|
| 751 | for metricname, mymetric in mymetrics.items(): |
---|
| 752 | |
---|
[53] | 753 | metrics_to_store = [ ] |
---|
| 754 | |
---|
[63] | 755 | # Pop metrics from stack for storing until none is left |
---|
| 756 | # atomic code: only 1 thread at a time may access myMetrics |
---|
| 757 | |
---|
[53] | 758 | # <ATOMIC> |
---|
[50] | 759 | # |
---|
[47] | 760 | self.slot.acquire() |
---|
[33] | 761 | |
---|
[54] | 762 | while len( self.myMetrics[ hostname ][ metricname ] ) > 0: |
---|
[53] | 763 | |
---|
[54] | 764 | if len( self.myMetrics[ hostname ][ metricname ] ) > 0: |
---|
| 765 | metrics_to_store.append( self.myMetrics[ hostname ][ metricname ].pop( 0 ) ) |
---|
[53] | 766 | |
---|
| 767 | self.slot.release() |
---|
| 768 | # |
---|
| 769 | # </ATOMIC> |
---|
| 770 | |
---|
[47] | 771 | # Create a mapping table, each metric to the period where it should be stored |
---|
| 772 | # |
---|
[53] | 773 | metric_serial_table = self.determineSerials( hostname, metricname, metrics_to_store ) |
---|
[33] | 774 | |
---|
[50] | 775 | update_rets = [ ] |
---|
| 776 | |
---|
[47] | 777 | for period, pmetric in metric_serial_table.items(): |
---|
| 778 | |
---|
| 779 | self.createCheck( hostname, metricname, period ) |
---|
| 780 | |
---|
| 781 | update_ret = self.update( hostname, metricname, period, pmetric ) |
---|
| 782 | |
---|
| 783 | if update_ret == 0: |
---|
| 784 | |
---|
| 785 | debug_msg( 9, 'stored metric %s for %s' %( hostname, metricname ) ) |
---|
| 786 | else: |
---|
| 787 | debug_msg( 9, 'metric update failed' ) |
---|
| 788 | |
---|
[50] | 789 | update_rets.append( update_ret ) |
---|
[47] | 790 | |
---|
[50] | 791 | if not (1) in update_rets: |
---|
| 792 | |
---|
[54] | 793 | self.memLastUpdate( hostname, metricname, metrics_to_store ) |
---|
[50] | 794 | |
---|
[17] | 795 | def makeTimeSerial( self ): |
---|
[63] | 796 | """Generate a time serial. Seconds since epoch""" |
---|
[17] | 797 | |
---|
| 798 | # Seconds since epoch |
---|
| 799 | mytime = int( time.time() ) |
---|
| 800 | |
---|
| 801 | return mytime |
---|
| 802 | |
---|
[50] | 803 | def makeRrdPath( self, host, metricname, timeserial ): |
---|
[63] | 804 | """Make a RRD location/path and filename""" |
---|
[17] | 805 | |
---|
[50] | 806 | rrd_dir = '%s/%s/%s/%s' %( check_dir(ARCHIVE_PATH), self.cluster, host, timeserial ) |
---|
| 807 | rrd_file = '%s/%s.rrd' %( rrd_dir, metricname ) |
---|
[17] | 808 | |
---|
| 809 | return rrd_dir, rrd_file |
---|
| 810 | |
---|
[20] | 811 | def getLastRrdTimeSerial( self, host ): |
---|
[63] | 812 | """Find the last timeserial (directory) for this host""" |
---|
[17] | 813 | |
---|
[19] | 814 | newest_timeserial = 0 |
---|
| 815 | |
---|
[47] | 816 | for dir in self.timeserials[ host ]: |
---|
[32] | 817 | |
---|
[47] | 818 | valid_dir = 1 |
---|
[17] | 819 | |
---|
[47] | 820 | for letter in dir: |
---|
| 821 | if letter not in string.digits: |
---|
| 822 | valid_dir = 0 |
---|
[17] | 823 | |
---|
[47] | 824 | if valid_dir: |
---|
| 825 | timeserial = dir |
---|
| 826 | if timeserial > newest_timeserial: |
---|
| 827 | newest_timeserial = timeserial |
---|
[17] | 828 | |
---|
| 829 | if newest_timeserial: |
---|
[18] | 830 | return newest_timeserial |
---|
[17] | 831 | else: |
---|
| 832 | return 0 |
---|
| 833 | |
---|
[47] | 834 | def determinePeriod( self, host, check_serial ): |
---|
[63] | 835 | """Determine to which period (directory) this time(serial) belongs""" |
---|
[47] | 836 | |
---|
| 837 | period_serial = 0 |
---|
| 838 | |
---|
[56] | 839 | if self.timeserials.has_key( host ): |
---|
[47] | 840 | |
---|
[56] | 841 | for serial in self.timeserials[ host ]: |
---|
[47] | 842 | |
---|
[56] | 843 | if check_serial >= serial and period_serial < serial: |
---|
[47] | 844 | |
---|
[56] | 845 | period_serial = serial |
---|
| 846 | |
---|
[47] | 847 | return period_serial |
---|
| 848 | |
---|
| 849 | def determineSerials( self, host, metricname, metriclist ): |
---|
| 850 | """ |
---|
| 851 | Determine the correct serial and corresponding rrd to store |
---|
| 852 | for a list of metrics |
---|
| 853 | """ |
---|
| 854 | |
---|
| 855 | metric_serial_table = { } |
---|
| 856 | |
---|
| 857 | for metric in metriclist: |
---|
| 858 | |
---|
| 859 | if metric['name'] == metricname: |
---|
| 860 | |
---|
| 861 | period = self.determinePeriod( host, metric['time'] ) |
---|
| 862 | |
---|
| 863 | archive_secs = ARCHIVE_HOURS_PER_RRD * (60 * 60) |
---|
| 864 | |
---|
[49] | 865 | if (int( metric['time'] ) - int( period ) ) > archive_secs: |
---|
[47] | 866 | |
---|
| 867 | # This one should get it's own new period |
---|
| 868 | period = metric['time'] |
---|
[57] | 869 | |
---|
| 870 | if not self.timeserials.has_key( host ): |
---|
| 871 | self.timeserials[ host ] = [ ] |
---|
| 872 | |
---|
[50] | 873 | self.timeserials[ host ].append( period ) |
---|
[47] | 874 | |
---|
| 875 | if not metric_serial_table.has_key( period ): |
---|
| 876 | |
---|
[49] | 877 | metric_serial_table[ period ] = [ ] |
---|
[47] | 878 | |
---|
| 879 | metric_serial_table[ period ].append( metric ) |
---|
| 880 | |
---|
| 881 | return metric_serial_table |
---|
| 882 | |
---|
[33] | 883 | def createCheck( self, host, metricname, timeserial ): |
---|
[63] | 884 | """Check if an rrd allready exists for this metric, create if not""" |
---|
[9] | 885 | |
---|
[35] | 886 | debug_msg( 9, 'rrdcreate: using timeserial %s for %s/%s' %( timeserial, host, metricname ) ) |
---|
[47] | 887 | |
---|
[33] | 888 | rrd_dir, rrd_file = self.makeRrdPath( host, metricname, timeserial ) |
---|
[17] | 889 | |
---|
[9] | 890 | if not os.path.exists( rrd_dir ): |
---|
[58] | 891 | |
---|
| 892 | try: |
---|
| 893 | os.makedirs( rrd_dir ) |
---|
| 894 | |
---|
| 895 | except OSError, msg: |
---|
| 896 | |
---|
| 897 | if msg.find( 'File exists' ) != -1: |
---|
| 898 | |
---|
| 899 | # Ignore exists errors |
---|
| 900 | pass |
---|
| 901 | |
---|
| 902 | else: |
---|
| 903 | |
---|
| 904 | print msg |
---|
| 905 | return |
---|
| 906 | |
---|
[14] | 907 | debug_msg( 9, 'created dir %s' %( str(rrd_dir) ) ) |
---|
[9] | 908 | |
---|
[14] | 909 | if not os.path.exists( rrd_file ): |
---|
[9] | 910 | |
---|
[33] | 911 | interval = self.config.getInterval( self.cluster ) |
---|
[47] | 912 | heartbeat = 8 * int( interval ) |
---|
[9] | 913 | |
---|
[37] | 914 | params = [ ] |
---|
[12] | 915 | |
---|
[37] | 916 | params.append( '--step' ) |
---|
| 917 | params.append( str( interval ) ) |
---|
[12] | 918 | |
---|
[37] | 919 | params.append( '--start' ) |
---|
[47] | 920 | params.append( str( int( timeserial ) - 1 ) ) |
---|
[12] | 921 | |
---|
[37] | 922 | params.append( 'DS:sum:GAUGE:%d:U:U' %heartbeat ) |
---|
| 923 | params.append( 'RRA:AVERAGE:0.5:1:%s' %(ARCHIVE_HOURS_PER_RRD * 240) ) |
---|
[13] | 924 | |
---|
[37] | 925 | self.rrdm.create( str(rrd_file), params ) |
---|
| 926 | |
---|
[14] | 927 | debug_msg( 9, 'created rrd %s' %( str(rrd_file) ) ) |
---|
| 928 | |
---|
[47] | 929 | def update( self, host, metricname, timeserial, metriclist ): |
---|
[63] | 930 | """ |
---|
| 931 | Update rrd file for host with metricname |
---|
| 932 | in directory timeserial with metriclist |
---|
| 933 | """ |
---|
[9] | 934 | |
---|
[35] | 935 | debug_msg( 9, 'rrdupdate: using timeserial %s for %s/%s' %( timeserial, host, metricname ) ) |
---|
[9] | 936 | |
---|
[33] | 937 | rrd_dir, rrd_file = self.makeRrdPath( host, metricname, timeserial ) |
---|
[18] | 938 | |
---|
[47] | 939 | update_list = self.makeUpdateList( host, metriclist ) |
---|
[15] | 940 | |
---|
[41] | 941 | if len( update_list ) > 0: |
---|
| 942 | ret = self.rrdm.update( str(rrd_file), update_list ) |
---|
[32] | 943 | |
---|
[41] | 944 | if ret: |
---|
| 945 | return 1 |
---|
[27] | 946 | |
---|
[41] | 947 | debug_msg( 9, 'updated rrd %s with %s' %( str(rrd_file), string.join( update_list ) ) ) |
---|
[15] | 948 | |
---|
[36] | 949 | return 0 |
---|
| 950 | |
---|
[8] | 951 | def main(): |
---|
[63] | 952 | """Program startup""" |
---|
[8] | 953 | |
---|
[63] | 954 | myProcessor = GangliaXMLProcessor() |
---|
[8] | 955 | |
---|
[63] | 956 | if DAEMONIZE: |
---|
| 957 | myProcessor.daemon() |
---|
| 958 | else: |
---|
| 959 | myProcessor.run() |
---|
[22] | 960 | |
---|
[9] | 961 | def check_dir( directory ): |
---|
[63] | 962 | """Check if directory is a proper directory. I.e.: Does _not_ end with a '/'""" |
---|
[9] | 963 | |
---|
| 964 | if directory[-1] == '/': |
---|
| 965 | directory = directory[:-1] |
---|
| 966 | |
---|
| 967 | return directory |
---|
| 968 | |
---|
[12] | 969 | def debug_msg( level, msg ): |
---|
[63] | 970 | """Only print msg if it is not below our debug level""" |
---|
[12] | 971 | |
---|
| 972 | if (DEBUG_LEVEL >= level): |
---|
| 973 | sys.stderr.write( msg + '\n' ) |
---|
| 974 | |
---|
[46] | 975 | def printTime( ): |
---|
[63] | 976 | """Print current time in human readable format""" |
---|
[46] | 977 | |
---|
| 978 | return time.strftime("%a %d %b %Y %H:%M:%S") |
---|
| 979 | |
---|
[63] | 980 | # Ooohh, someone started me! Let's go.. |
---|
[9] | 981 | if __name__ == '__main__': |
---|
| 982 | main() |
---|