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README
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README
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MySQL Server SNMP Agent.
Copyright (c) 2008,2009 Brice Figureau <brice.figureau@daysofwonder.com>
PREAMBLE
========
mysql-agent is a MySQL Net-SNMP agent written in Perl, and using the Net-Snmp
Perl bindings.
It connects to a mysql server and returns information to Net-SNMP when needed.
It parses SHOW INNODB STATUS and other MySQL status variables.
This work is based on Baron Schwartz Mysql Cacti Templates, available at:
http://code.google.com/p/mysql-cacti-templates/
This work is based on the blog post about a SNMP agent:
http://mysqldump.azundris.com/archives/63-Sysadmins-Nightly-Mental-Pain-SNMP.html
This software is released under the GPL v2.
REQUIREMENTS
============
This package requires Net-SNMP version 5.4.2 or better (because of some
bugs in previous versions).
INSTALL
=======
Debian
------
Please build the package:
$ dpkg-buildpackage -rfakeroot -uc- b
and install it
Then, modify /etc/default/mysql-agent
Other
-----
Modify the Makefile, and:
$ sudo make install
Then create an init.d startup script. You can look to the debian one
in debian/init.d
Install the MIB file in your mibs directory.
CONFIGURE
=========
Configure net-snmp
------------------
Add:
master agentx
to /etc/snmp/snmpd.conf, and restart snmpd
Configure mysql-snmp
--------------------
Under debian, the daemon can be configured with /etc/default/mysql-snmp.
On all platform, the configuration is done with command line arguments:
-h|--host HOST connect to mysql HOST
-P|--port PORT port to connect to (default 3306)
-u|--user DBUSER use DBUSER as user to connect to mysql
-p|--passwordi DBPASS use DBPASS as password to connect to mysql
-c|--config FILE read MySQL configuration from FILE
-m|--master check master
-s|--slave check slave
--oid OID registering OID
-i|--refresh refresh interval in seconds
You can specify the mysql connection parameters in a config file using my.cnf format, like this:
For example:
[client]
host=dbserver
port=3306
user=monitor
password=secret
OPENNMS
=======
You'll find in the opennms directory the various configuration snippets
that can be used to let opennms graph the value reported by this agent.
datacollection-config.xml
-------------------------
Add this to the datacollection-config.xml file:
<!-- MySQL-SERVER MIB -->
<group name="mysql" ifType="ignore">
<mibObj oid=".1.3.6.1.4.1.20267.200.1.1" instance="0" alias="myKeyReadRequests" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.2" instance="0" alias="myKeyReads" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.3" instance="0" alias="myKeyWriteRequests" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.4" instance="0" alias="myKeyWrites" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.5" instance="0" alias="myHistoryList" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.6" instance="0" alias="myInnodbTransactins" type="Counter64" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.7" instance="0" alias="myReadViews" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.8" instance="0" alias="myCurrentTransactns" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.9" instance="0" alias="myLockedTransactins" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.10" instance="0" alias="myActiveTransactins" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.11" instance="0" alias="myPoolSize" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.12" instance="0" alias="myFreePages" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.13" instance="0" alias="myDatabasePages" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.14" instance="0" alias="myModifiedPages" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.15" instance="0" alias="myPagesRead" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.16" instance="0" alias="myPagesCreated" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.17" instance="0" alias="myPagesWritten" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.18" instance="0" alias="myFileFsyncs" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.19" instance="0" alias="myFileReads" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.20" instance="0" alias="myFileWrites" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.21" instance="0" alias="myLogWrites" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.22" instance="0" alias="myPendingAIOLogIOs" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.23" instance="0" alias="myPendingAIOSyncIOs" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.24" instance="0" alias="myPendingBufPlFlshs" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.25" instance="0" alias="myPendingChkpWrites" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.26" instance="0" alias="myPendingIbufAIORds" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.27" instance="0" alias="myPendingLogFlushes" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.28" instance="0" alias="myPendingLogWrites" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.29" instance="0" alias="myPendingNrmlAIORds" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.30" instance="0" alias="myPendngNrmlAIOWrts" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.31" instance="0" alias="myIbufInserts" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.32" instance="0" alias="myIbufMerged" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.33" instance="0" alias="myIbufMerges" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.34" instance="0" alias="mySpinWaits" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.35" instance="0" alias="mySpinRounds" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.36" instance="0" alias="myOsWaits" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.37" instance="0" alias="myRowsInserted" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.38" instance="0" alias="myRowsUpdated" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.39" instance="0" alias="myRowsDeleted" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.40" instance="0" alias="myRowsRead" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.41" instance="0" alias="myTableLocksWaited" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.42" instance="0" alias="myTableLocksImmedit" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.43" instance="0" alias="mySlowQueries" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.44" instance="0" alias="myOpenFiles" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.45" instance="0" alias="myOpenTables" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.46" instance="0" alias="myOpenedTables" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.47" instance="0" alias="myInnodbOpenFiles" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.48" instance="0" alias="myOpenFilesLimit" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.49" instance="0" alias="myTableCache" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.50" instance="0" alias="myAbortedClients" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.51" instance="0" alias="myAbortedConnects" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.52" instance="0" alias="myMaxUsedConnectins" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.53" instance="0" alias="mySlowLaunchThreads" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.54" instance="0" alias="myThreadsCached" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.55" instance="0" alias="myThreadsConnected" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.56" instance="0" alias="myThreadsCreated" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.57" instance="0" alias="myThreadsRunning" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.58" instance="0" alias="myMaxConnections" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.59" instance="0" alias="myThreadCacheSize" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.60" instance="0" alias="myConnections" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.61" instance="0" alias="mySlaveRunning" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.62" instance="0" alias="mySlaveStopped" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.63" instance="0" alias="mySlaveRtrdTrnsctns" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.64" instance="0" alias="mySlaveLag" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.65" instance="0" alias="mySlaveOpenTempTbls" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.66" instance="0" alias="myQcacheFreeBlocks" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.67" instance="0" alias="myQcacheFreeMemory" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.68" instance="0" alias="myQcacheHits" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.69" instance="0" alias="myQcacheInserts" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.70" instance="0" alias="myQcacheLowmemPruns" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.71" instance="0" alias="myQcacheNotCached" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.72" instance="0" alias="myQcacheQuerisInCch" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.73" instance="0" alias="myQcacheTotalBlocks" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.74" instance="0" alias="myQueryCacheSize" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.75" instance="0" alias="myQuestions" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.76" instance="0" alias="myComUpdate" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.77" instance="0" alias="myComInsert" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.78" instance="0" alias="myComSelect" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.79" instance="0" alias="myComDelete" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.80" instance="0" alias="myComReplace" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.81" instance="0" alias="myComLoad" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.82" instance="0" alias="myComUpdateMulti" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.83" instance="0" alias="myComInsertSelect" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.84" instance="0" alias="myComDeleteMulti" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.85" instance="0" alias="myComReplaceSelect" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.86" instance="0" alias="mySelectFullJoin" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.87" instance="0" alias="mySelectFullRangeJn" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.88" instance="0" alias="mySelectRange" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.89" instance="0" alias="mySelectRangeCheck" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.90" instance="0" alias="mySelectScan" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.91" instance="0" alias="mySortMergePasses" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.92" instance="0" alias="mySortRange" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.93" instance="0" alias="mySortRows" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.94" instance="0" alias="mySortScan" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.95" instance="0" alias="myCreatedTmpTables" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.96" instance="0" alias="myCreatedTmpDskTbls" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.97" instance="0" alias="myCreatedTmpFiles" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.98" instance="0" alias="myBytesSent" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.99" instance="0" alias="myBytesReceived" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.100" instance="0" alias="myInnodbLogBufferSz" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.101" instance="0" alias="myUnflushedLog" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.102" instance="0" alias="myLogBytesFlushed" type="Counter64" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.103" instance="0" alias="myLogBytesWritten" type="Counter64" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.104" instance="0" alias="myRelayLogSpace" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.105" instance="0" alias="myBinlogCacheSize" type="Gauge32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.106" instance="0" alias="myBinlogCacheDiskUs" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.107" instance="0" alias="myBinlogCacheUse" type="Counter32" />
<mibObj oid=".1.3.6.1.4.1.20267.200.1.108" instance="0" alias="myBinaryLogSpace" type="Counter32" />
</group>
Then add this group to your hosts:
<systemDef name="Net-Snmp">
<sysoidMask>.1.3.6.1.4.1.8072.3.</sysoidMask>
<collect>
<includeGroup>mib2-host-resources-system</includeGroup>
<includeGroup>mib2-host-resources-memory</includeGroup>
<includeGroup>net-snmp-disk</includeGroup>
<includeGroup>ucd-loadavg</includeGroup>
<includeGroup>ucd-memory</includeGroup>
<includeGroup>ucd-sysstat</includeGroup>
<includeGroup>mysql</includeGroup>
</collect>
</systemDef>
And now, add the graph definitions from the mysql.snmp-graph.properties file
to your snmp-graph.properties.