collectors JolokiaCollector

JolokiaCollector

Collects JMX metrics from the Jolokia Agent. Jolokia is an HTTP bridge that provides access to JMX MBeans without the need to write Java code. See the Reference Guide for more information.

By default, all MBeans will be queried for metrics. All numerical values will be published to Graphite; anything else will be ignored. JolokiaCollector will create a reasonable namespace for each metric based on each MBeans domain and name. e.g) java.lang:name=ParNew,type=GarbageCollector would become java.lang.name_ParNew.type_GarbageCollector.

Dependencies

• Jolokia
• A running JVM with Jolokia installed/configured

Example Configuration

If desired, JolokiaCollector can be configured to query specific MBeans by providing a list of mbeans. If mbeans is not provided, all MBeans will be queried for metrics.

JolokiaCollector.conf

    host 'localhost'
    port '8778'
    mbeans '"java.lang:name=ParNew,type=GarbageCollector | org.apache.cassandra.metrics:name=WriteTimeouts,type=ClientRequestMetrics"'

Options - Generic Options

Setting	Default	Description	Type
byte_unit	byte	Default numeric output(s)	str
enabled	False	Enable collecting these metrics	bool
host	localhost	Hostname	str
mbeans	,	Pipe delimited list of MBeans for which to collect stats. If not provided, all stats will be collected	list
measure_collector_time	False	Collect the collector run time in ms	bool
metrics_blacklist	None	Regex to match metrics to block. Mutually exclusive with metrics_whitelist	NoneType
metrics_whitelist	None	Regex to match metrics to transmit. Mutually exclusive with metrics_blacklist	NoneType
port	8778	Port	int

Example Output

servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.duration 2
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.id 219
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.CMS_Old_Gen.committed 73400320
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.CMS_Old_Gen.init 73400320
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.CMS_Old_Gen.max 73400320
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.CMS_Old_Gen.used 5146840
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.CMS_Perm_Gen.committed 23920640
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.CMS_Perm_Gen.init 21757952
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.CMS_Perm_Gen.max 85983232
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.CMS_Perm_Gen.used 23796992
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.Code_Cache.committed 2686976
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.Code_Cache.init 2555904
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.Code_Cache.max 50331648
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.Code_Cache.used 2600768
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.Par_Eden_Space.committed 25165824
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.Par_Eden_Space.init 25165824
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.Par_Eden_Space.max 25165824
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.Par_Eden_Space.used 25165824
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.Par_Survivor_Space.committed 3145728
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.Par_Survivor_Space.init 3145728
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.Par_Survivor_Space.max 3145728
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.memoryUsageBeforeGc.Par_Survivor_Space.used 414088
servers.hostname.jmx.java.lang.name_ParNew.type_GarbageCollector.LastGcInfo.startTime 14259063

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