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https://issues.apache.org/jira/browse/HBASE-20654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16494865#comment-16494865
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liubangchen commented on HBASE-20654:
-------------------------------------
This is my first independent submission of patchs, and I need your guidance.
The exported jmx example is as follows：
{code:json}
{
"beans" : [ {
"name" : "Hadoop:service=HBase,name=Master,sub=AssignmentManager",
"modelerType" : "Master,sub=AssignmentManager",
"tag.regionsOffline" : "default_t2_1b48dede1f20e6d4a61g08499d3sa52i",
"tag.regionsOpening" : "",
"tag.regionsOpen" : "",
"tag.regionsClosing" : "",
"tag.regionsClosed" : "default_t1_1b48dede1f20e6d4a61308499b3ba523",
"tag.regionsSplitting" : "",
"tag.regionsSplit" : "",
"tag.regionsFailedOpen" : "",
"tag.regionsFailedClose" : "",
"tag.regionsMerging" : "",
"tag.regionsMerged" : "",
"tag.regionsSplittingNew" : "",
"tag.Context" : "master",
"tag.Hostname" : "LIUBANGCHEN-MB1",
"operationCount" : 2,
"ritOldestAge" : 300341,
"RitDuration_num_ops" : 0,
"RitDuration_min" : 0,
"RitDuration_max" : 0,
"RitDuration_mean" : 0,
"RitDuration_25th_percentile" : 0,
"RitDuration_median" : 0,
"RitDuration_75th_percentile" : 0,
"RitDuration_90th_percentile" : 0,
"RitDuration_95th_percentile" : 0,
"RitDuration_98th_percentile" : 0,
"RitDuration_99th_percentile" : 0,
"RitDuration_99.9th_percentile" : 0,
"ritCountOverThreshold" : 1,
"ritCount" : 1
} ]
}
{code}
qyr=Hadoop:service=HBase,name=Master,sub=AssignmentManager
> Expose regions in transition thru JMX
> -------------------------------------
>
> Key: HBASE-20654
> URL: https://issues.apache.org/jira/browse/HBASE-20654
> Project: HBase
> Issue Type: Improvement
> Reporter: Ted Yu
> Assignee: liubangchen
> Priority: Major
> Attachments: HBASE-20654-1.patch
>
>
> Currently only the count of regions in transition is exposed thru JMX.
> Here is a sample snippet of the /jmx output:
> {code}
> {
> "beans" : [ {
> ...
> }, {
> "name" : "Hadoop:service=HBase,name=Master,sub=AssignmentManager",
> "modelerType" : "Master,sub=AssignmentManager",
> "tag.Context" : "master",
> ...
> "ritCount" : 3
> {code}
> It would be desirable to expose region name, state for the regions in
> transition as well.
> We can place configurable upper bound on the number of entries returned in
> case there're a lot of regions in transition.
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