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https://issues.apache.org/jira/browse/HBASE-12665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240114#comment-14240114
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stack commented on HBASE-12665:
-------------------------------
Hard to write a test for this. I tried /jmx in UI and looking in tests that
abort I see this:
{code}
781 2014-12-09 13:44:21,244 FATAL [main] regionserver.HRegionServer(1921):
ABORTING region server kalashnikov-19.att.net,61685,1418161460417: I'm dead
782 2014-12-09 13:44:21,244 FATAL [main] regionserver.HRegionServer(1927):
RegionServer abort: loaded coprocessors are:
[org.apache.hadoop.hbase.coprocessor.MultiRowMutationEndpoint]
783 {
784 "beans" : [ {
785 "name" : "java.lang:type=MemoryPool,name=PS Survivor Space",
786 "modelerType" : "sun.management.MemoryPoolImpl",
787 "Name" : "PS Survivor Space",
788 "Type" : "HEAP",
789 "Valid" : true,
790 "Usage" : {
791 "committed" : 35127296,
792 "init" : 11010048,
793 "max" : 35127296,
794 "used" : 34974144
795 },
796 "PeakUsage" : {
797 "committed" : 35127296,
798 "init" : 11010048,
799 "max" : 35127296,
800 "used" : 34974144
801 },
802 "MemoryManagerNames" : [ "PS MarkSweep", "PS Scavenge" ],
803 "UsageThresholdSupported" : false,
804 "CollectionUsageThreshold" : 0,
805 "CollectionUsageThresholdExceeded" : false,
806 "CollectionUsageThresholdCount" : 0,
807 "CollectionUsage" : {
808 "committed" : 35127296,
809 "init" : 11010048,
810 "max" : 35127296,
811 "used" : 34974144
812 },
813 "CollectionUsageThresholdSupported" : true,
814 "ObjectName" : "java.lang:type=MemoryPool,name=PS Survivor Space"
815 }, {
816 "name" : "Hadoop:service=HBase,name=Master,sub=AssignmentManger",
817 "modelerType" : "Master,sub=AssignmentManger",
818 "tag.Context" : "master",
819 "tag.Hostname" : "kalashnikov-19.att.net",
820 "ritOldestAge" : 0,
821 "ritCount" : 0,
822 "BulkAssign_num_ops" : 5,
823 "BulkAssign_min" : 0,
824 "BulkAssign_max" : 17,
825 "BulkAssign_mean" : 5.8,
826 "BulkAssign_median" : 0.0,
827 "BulkAssign_75th_percentile" : 14.5,
828 "BulkAssign_95th_percentile" : 17.0,
829 "BulkAssign_99th_percentile" : 17.0,
...
{code}
> When aborting, dump metrics
> ---------------------------
>
> Key: HBASE-12665
> URL: https://issues.apache.org/jira/browse/HBASE-12665
> Project: HBase
> Issue Type: Bug
> Components: Operability
> Reporter: stack
> Assignee: stack
> Fix For: 1.0.0, 2.0.0, 0.98.9
>
> Attachments: 0001-First-cut.patch
>
>
> We used to dump out all metrics when we were exiting on abort. Was of use
> debugging why the abort. We used to have this. [~jdcryans] noticed it was
> dropped by his brother [~eclark] over in HBASE-6410 "Move RegionServer
> Metrics to metrics2" To stop the two brothers fighting I intervened with this
> patch.
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