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https://issues.apache.org/jira/browse/HBASE-20654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16495488#comment-16495488
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Sean Busbey commented on HBASE-20654:
-------------------------------------
you can also get this in the Java API from the ClusterMetrics object returned
from Admin, I think.
In the shell it'd look like:
{code}
hbase(main):038:0> regions_in_transition = @hbase.admin.instance_eval do
hbase(main):039:1* @admin.get_cluster_metrics.get_region_states_in_transition
hbase(main):040:1> end
=> #<Java::JavaUtil::Collections::UnmodifiableRandomAccessList:0x51508029>
{code}
> 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, HBASE-20654-2.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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