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Check Garbage Collection

This section provides example configuration for collecting garbage collection statistics.

Installation:

Edit your commands.cfg and add the following

define command {
   command_name    check_jboss_gc
   command_line    $USER1$/nagios-plugin-jbossas7/check_jbossas7.py -H $HOSTADDRESS$ -A $ARG1$ -P $ARG2$ -u $ARG3$ -p $ARG4$ -m $ARG5$ -W $ARG6$ -C $ARG7$
}

(add -D to the command if you want to add perfdata to the output) Then you can reference it like the following.

Usage:

Check Minor GC Time

The option gctime allows you to monitor the average minor garbage collection time in milliseconds.

define service {
   use                     generic-service
   hostgroup_name          JBossAS Servers
   service_description     JBossAS Avg. Minor GC time Check
   check_command           check_jboss_gc!gctime!9990!admin!password123!memory_pool!50!100
}

Examples of memory_pool types: PS_Scavenge, G1_Young_Generation

Sample output:

OK - GC 'PS_Scavenge' total-time=413ms count=9 avg-time=45.00ms |gctime=45.00ms;500;1000

Check Major GC Time

The option gctime allows you to monitor the average major garbage collection time in milliseconds.

define service {
   use                     generic-service
   hostgroup_name          JBossAS Servers
   service_description     JBossAS Avg. Major GC time Check
   check_command           check_jboss_gc!gctime!9990!admin!password123!memory_pool!500!1000
}

Examples of memory_pool types: PS_MarkSweep, G1_Old_Generation

Sample output:

OK - GC 'PS_MarkSweep' total-time=468ms count=2 avg-time=234.00ms |gctime=234.00ms;500;1000