I am trying to send kafka metrics for display to ganglia server using latest download from https://github.com/adambarthelson/kafka-ganglia.
Here's my kafka_metrics.json { "servers" : [ { "port" : "9999", "host" : "ecokaf1", "queries" : [ { "outputWriters" : [ { "@class" : "com.googlecode.jmxtrans.model.output.GangliaWriter", "settings" : { "groupName" : "kafka stats 2", "port" : 8649, "host" : "ecokaf1" } } ], "obj" : "kafka.server:type=ReplicaManager,name=PartitionCount", "resultAlias": "Kafka.ReplicaManager", "attr" : [ "Value" ] } ], "numQueryThreads" : 2 } ] } I start jmxtrans as follows: sudo ./jmxtrans.sh start kafka_metrics.json JMXTrans starts without any issues. Here are the logs: [05 Nov 2013 00:49:48] [main] 0 INFO (com.googlecode.jmxtrans.JmxTransformer:134) - Starting Jmxtrans on : kafka_metrics.json [05 Nov 2013 00:49:48] [main] 386 DEBUG (com.googlecode.jmxtrans.JmxTransformer:354) - Loaded file: /usr/share/jmxtrans/kafka_metrics.json [05 Nov 2013 00:49:48] [main] 392 DEBUG (com.googlecode.jmxtrans.model.output.GangliaWriter:119) - Validated Ganglia metric [host: ecokaf1, port: 8649, addressingMode: UNICAST, ttl: 5, v3.1: true, units: '', slope: BOTH, tmax: 60, dmax: 0, spoofedHostName: 192.168.3.1:ecokaf1, groupName: 'kafka stats 2'] [05 Nov 2013 00:49:48] [main] 406 DEBUG (com.googlecode.jmxtrans.JmxTransformer:429) - Scheduled job: ecokaf1:9999-1383612588479-3580845919 for server: Server [host=ecokaf1, port=9999, url=null, cronExpression=null, numQueryThreads=2] [05 Nov 2013 00:49:48] [ServerScheduler_Worker-1] 414 DEBUG (com.googlecode.jmxtrans.jobs.ServerJob:31) - +++++ Started server job: Server [host=ecokaf1, port=9999, url=null, cronExpression=null, numQueryThreads=2] [05 Nov 2013 00:49:48] [ServerScheduler_Worker-1] 544 DEBUG (com.googlecode.jmxtrans.util.JmxUtils:102) - ----- Creating 1 query threads [05 Nov 2013 00:49:48] [ServerScheduler_Worker-1] 553 DEBUG (com.googlecode.jmxtrans.jobs.ServerJob:50) - +++++ Finished server job: Server [host=ecokaf1, port=9999, url=service:jmx:rmi:///jndi/rmi://ecokaf1:9999/jmxrmi, cronExpression=null, numQueryThreads=2] [05 Nov 2013 00:50:48] [ServerScheduler_Worker-2] 60401 DEBUG (com.googlecode.jmxtrans.jobs.ServerJob:31) - +++++ Started server job: Server [host=ecokaf1, port=9999, url=service:jmx:rmi:///jndi/rmi://ecokaf1:9999/jmxrmi, cronExpression=null, numQueryThreads=2] [05 Nov 2013 00:50:48] [ServerScheduler_Worker-2] 60404 DEBUG (com.googlecode.jmxtrans.util.JmxUtils:102) - ----- Creating 1 query threads [05 Nov 2013 00:50:48] [ServerScheduler_Worker-2] 60410 DEBUG (com.googlecode.jmxtrans.jobs.ServerJob:50) - +++++ Finished server job: Server [host=ecokaf1, port=9999, url=service:jmx:rmi:///jndi/rmi://ecokaf1:9999/jmxrmi, cronExpression=null, numQueryThreads=2] Does any one spot an issue with the json? When I add the jvmheapmemory and jvmGC examples to my json, jmxtrans sends those metrics to Ganglia. Corresponding rrds files are created in ganglia location and I can see the following in jmxtrans.log: [05 Nov 2013 00:45:44] [pool-30-thread-1] 1740436 DEBUG (com.googlecode.jmxtrans.model.output.GangliaWriter:141) - Sending Ganglia metric heap.HeapMemoryUsage_init=263441792 [05 Nov 2013 00:45:44] [pool-30-thread-2] 1740449 DEBUG (com.googlecode.jmxtrans.model.output.GangliaWriter:141) - Sending Ganglia metric GC.PSScavenge.CollectionCount=334 And I know that kafka is publishing jmx metrics because I can see them using jmxsh-R5 command line tool, Appreciate any pointers you can provide with regards to kafka. Thanks, Priya