2015-05-01 15:00:51,688 INFO [main] util.VersionInfo: HBase 0.98.0.2.1.5.0-695-hadoop2 (HortonWorks) 15/05/01 15:03:31 INFO util.VersionInfo: HBase 0.98.6-cdh5.3.2 (Cloudera)
I haven't tried on our MapR systems yet. Sample: [seapilot@host01 ~]$ curl http://host05.cluster.com:60010/jmx?description=true | more % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0{ "beans" : [ { "name" : "java.lang:type=Memory", "modelerType" : "sun.management.MemoryImpl", "HeapMemoryUsage" : { "committed" : 832241664, "init" : 860880896, "max" : 833290240, "used" : 146761864 }, "NonHeapMemoryUsage" : { "committed" : 81756160, "init" : 24313856, "max" : 136314880, "used" : 51497664 }, "ObjectPendingFinalizationCount" : 0, "Verbose" : false, "ObjectName" : "java.lang:type=Memory" }, { "name" : "Hadoop:service=HBase,name=MetricsSystem,sub=Control", "modelerType" : "org.apache.hadoop.metrics2.impl.MetricsSystemImpl" }, { "name" : "Hadoop:service=HBase,name=Master,sub=AssignmentManger", "modelerType" : "Master,sub=AssignmentManger", "tag.Context" : "master", "tag.Hostname" : "host05.cluster.com", "ritOldestAge" : 0, "ritCount" : 0, "BulkAssign_num_ops" : 2517, "BulkAssign_min" : 0, "BulkAssign_max" : 5862, "BulkAssign_mean" : 27.341676599125943, "BulkAssign_median" : 0.0, "BulkAssign_75th_percentile" : 52.0, "BulkAssign_95th_percentile" : 93.5, "BulkAssign_99th_percentile" : 133.90000000000032, "ritCountOverThreshold" : 0, "Assign_num_ops" : 1, "Assign_min" : 109, "Assign_max" : 109, "Assign_mean" : 109.0, "Assign_median" : 109.0, "Assign_75th_percentile" : 109.0, "Assign_95th_percentile" : 109.0, "Assign_99th_percentile" : 109.0 }, { "name" : "Hadoop:service=HBase,name=UgiMetrics", "modelerType" : "UgiMetrics", "tag.Context" : "ugi", "tag.Hostname" : "host05.cluster.com", "LoginSuccessNumOps" : 0, "LoginSuccessAvgTime" : 0.0, "LoginFailureNumOps" : 0, "LoginFailureAvgTime" : 0.0, "GetGroupsNumOps" : 0, "GetGroupsAvgTime" : 0.0 } Thanks, Gunnar -----Original Message----- From: Ted Yu [mailto:[email protected]] Sent: Friday, May 01, 2015 8:37 AM To: [email protected] Subject: Re: jmx?description=true Which release of HBase do you use ? I tried on hbase 1.1.0 RC and saw descriptions when ?description=true is appended to URL. Here is top of region server JMX : { "beans" : [ { "name" : "java.lang:type=Memory", "description" : "Information on the management interface of the MBean", "modelerType" : "sun.management.MemoryImpl", "ObjectPendingFinalizationCount" : 0, "NonHeapMemoryUsage" : { "committed" : 106651648, "init" : 24313856, "max" : 224395264, "used" : 66747672 }, "Verbose" : true, "HeapMemoryUsage" : { "committed" : 2104754176, "init" : 2147483648, "max" : 2104754176, "used" : 395104928 }, "ObjectName" : "java.lang:type=Memory" }, { "name" : "Hadoop:service=HBase,name=RegionServer,sub=IPC", "description" : "Metrics about HBase Server IPC", "modelerType" : "RegionServer,sub=IPC", "tag.Context" : { "description" : "Metrics context", "value" : "regionserver" }, "tag.Hostname" : { "description" : "Local hostname", "value" : "devdeploy-os-amb-r6-uns-1430336073-4" } Here is top of master JMX: { "beans" : [ { "name" : "java.lang:type=Memory", "description" : "Information on the management interface of the MBean", "modelerType" : "sun.management.MemoryImpl", "Verbose" : true, "ObjectPendingFinalizationCount" : 0, "NonHeapMemoryUsage" : { "committed" : 107048960, "init" : 24313856, "max" : 224395264, "used" : 66834944 }, "HeapMemoryUsage" : { "committed" : 252772352, "init" : 261353600, "max" : 2130051072, "used" : 52166192 }, "ObjectName" : "java.lang:type=Memory" }, { "name" : "Hadoop:service=HBase,name=MetricsSystem,sub=Control", "description" : "Information on the management interface of the MBean", "modelerType" : "org.apache.hadoop.metrics2.impl.MetricsSystemImpl" }, { "name" : "Hadoop:service=HBase,name=Master,sub=AssignmentManger", "description" : "Metrics about HBase master assingment manager.", "modelerType" : "Master,sub=AssignmentManger", "tag.Context" : { "description" : "Metrics context", "value" : "master" }, On Thu, Apr 30, 2015 at 3:19 PM, Tapper, Gunnar <[email protected]> wrote: > Hi, > > The documentation says: > > “Click the Metrics Dump link near the top. The metrics for the region > server are presented as a dump of the JMX bean in JSON format. This > will dump out all metrics names and their values. To include metrics > descriptions in the listing — this can be useful when you are > exploring what is available — add a query string of ?description=true > so your URL becomes > http://REGIONSERVER_HOSTNAME:60030/jmx?description=true< > http://regionserver_hostname:60030/jmx?description=true>. Not all > beans and attributes have descriptions.” > > I can never get this to work for either the Master or RegionServers. > No descriptions are provided. > > Could someone provide an example for BOTH the Master and a > RegionServer with descriptions? I’d like to know what the different counters > do. > > Thank you, > > Gunnar > > Download a free version of HPDSM, a unified big-data administration > tool for Vertica and Hadoop at: HP DSM > Download<https://vertica.hpwsportal.com/ > > > > “People don’t know what they want until you show it to them… Our task > is to read things that are not yet on the page.” — Steve Jobs > > > >
