Apache ActiveMQ is a popular and powerful open source messaging and Integration Patterns server.
It exposes its performance metrics via Jolokia agent out of the box.
All you need is to configure Agent with appropriate parameters and start it.
By Default Apache ActiveMQ sends metrics via 0.0.0.0:8161/api/jolokia/read and uses admin:admin as user/pass.
So if default configuration is not changed Agent will work without extra config.
Install
cd ${OE_AGENT_HOME}/checks_enabled
ln -s ../checks_available/check_activemq.py ./
Configure
[ActiveMQ]
stats: http://127.0.0.1:8161/api/jolokia/read
brokername: localhost
user: admin
pass: admin
auth: True
If you have changed default configuration of Apache ActiveMQ, pleas make sure that all params in Agent config matches it.
Especially on clustered installations, you will need to change brokername: localhost with appropriate BrokerName of your ActiveMQ instance.
Provides
| Name | Description | Type | Unit |
|---|---|---|---|
| activemq_daemonthreadcount | Amount if running Java daemon threads | current | None |
| activemq_heap_committed | Java heap committed memory | current | Bytes |
| activemq_heap_max | Java heap max memory | current | Bytes |
| activemq_heap_used | Java heap used memory | current | Bytes |
| activemq_memorypercentusage | ActiveMQ used memory percentage | current | Percent |
| activemq_nonheap_committed | Java non heap committed memory | current | Bytes |
| activemq_nonheap_max | Java non heap max memory | current | Bytes |
| activemq_nonheap_used | Java non heap used memory | current | Bytes |
| activemq_peakthreadcount | Peak amount of running Java threads | current | None |
| activemq_storepercentusage | Percentage os storage usage | current | Percent |
| activemq_threadcount | Amount of running Java non daemon threads | current | None |
| activemq_totalconnectionscount | Active connections count | current | None |
| activemq_totalconsumercount | Active consumers count | current | None |
| activemq_totaldequeuecount | Active dequeues count | current | None |
| activemq_totalenqueuecount | Active enqueues count | current | None |
| activemq_totalmessagecount | Current messages count | current | None |
| activemq_totalproducercount | Active producers count | current | None |
| activemq_{cms/g1_old}_collectioncount | CMS or G1 Old gen collections count | counter | None |
| activemq_{cms/g1_old}_collectiontime | CMS or G1 Old gen collections time | rate | Milliseconds |
| activemq_{cms/g1_old}_lastgcinfo | CMS or G1 Old gen last GC info | current | Milliseconds |
| activemq_{parneq/g1_young}_collectioncount | ParNew or G1 Young gen collections count | counter | None |
| activemq_{parneq/g1_young}_collectiontime | ParNew or G1 Young gen collections time | rate | Milliseconds |
| activemq_{parneq/g1_young}_lastgcinfo | ParNew or G1 Young gen last GC info | current | Milliseconds |