Ah, yes the JMX support was just added in the 0.20.1 release. So you'll need to use that or later -- 0.20.2 is current so would be recommended -- to make use of it.
On Tue, Dec 8, 2009 at 11:07 AM, Edward Capriolo <[email protected]>wrote: > On Tue, Dec 8, 2009 at 10:22 AM, Gary Helmling <[email protected]> > wrote: > > Hi Edward, > > > > If you look at the bin/hbase shell script, you'll see that it adds > separate > > env variables to the master, regionserver, thrift and zookeeper processes > > when running -- respectively: > > > > HBASE_MASTER_OPTS > > HBASE_REGIONSERVER_OPTS > > HBASE_THRIFT_OPTS > > HBASE_ZOOKEEPER_OPTS > > > > So you just need to add lines for any of these you choose to > > conf/hbase-env.sh. We should probably add commented out placeholders for > > each of these in the default hbase-env.sh script with some explanation, > > though. > > > > The equivalent stats to the web interface are exported as the following > > MBeans: > > > > Master: > > * hadoop:service=Master,name=MasterStatistics > > * cluster_requests > > * hadoop:service=HBase,name=RPCStatistics-<portnum> > > * RpcProcessingTimeAvgTime > > * RpcProcessingTimeMaxTime > > * RpcProcessingTimeMinTime > > * RpcProcessingTimeNumOps > > * RpcQueueTimeAvgTime > > * RpcQueueTimeMaxTime > > * RpcQueueTimeMinTime > > * RpcQueueTimeNumOps > > > > RegionServer: > > * hadoop:service=RegionServer,name=RegionServerStatistics > > * atomicIncrementTimeAvgTime > > * atomicIncrementTimeMaxTime > > * atomicIncrementTimeMinTime > > * atomicIncrementTimeNumOps > > * blockCacheCount > > * blockCacheFree > > * blockCacheHitRatio > > * blockCacheSize > > * memstoreSizeMB > > * regions > > * storefileIndexSizeMB > > * storefiles > > * stores > > * hadoop:service=HBase,name=RPCStatistics-<portnum> > > * RpcProcessingTimeAvgTime > > * RpcProcessingTimeMaxTime > > * RpcProcessingTimeMinTime > > * RpcProcessingTimeNumOps > > * RpcQueueTimeAvgTime > > * RpcQueueTimeMaxTime > > * RpcQueueTimeMinTime > > * RpcQueueTimeNumOps > > > > > > The heap usage stats (and many others) are available under the java.lang: > > domain. > > > > If you haven't already, please see the JMX setup instructions: > > http://hadoop.apache.org/hbase/docs/r0.20.2/metrics.html > > > > And if you've already read through that and are running into > difficulties, > > let us know what kinds of problems/errors you're seeing. > > > > Thanks, > > Gary > > > > > > On Tue, Dec 8, 2009 at 9:52 AM, Edward Capriolo <[email protected] > >wrote: > > > >> List, > >> > >> I am interested in pulling the HBASE metrics with JMX. I notice one > quick > >> thing. > >> > >> Like hadoop-env hbase.env should have environment variables that allow > >> setting options per daemon. > >> > >> Also I have noticed that even though I start a regionserver with JMX > >> enabled, the information that appears in the HBase Web Interface > >> is not found in JMX. > >> > >> request=0.0, regions=4, stores=7, storefiles=9, > >> storefileIndexSize=0, > >> memstoreSize=0, usedHeap=36, maxHeap=997, blockCacheSize=1719352, > >> blockCacheFree=207563320, blockCacheCount=2, blockCacheHitRatio=83 > >> > >> The Zookeeper JMX is present when I start the zookeeper component, any > >> ideas? O can I just get this information with the hbase client? > >> > >> Edward > >> > > > > I think the problem may be that I am using the version from the > cloudera testing repo and it predates the JMX support? Or has it been > around for some time. > > Thanks for the great info. > > Edward >
