[jira] [Created] (HBASE-16636) Regions in Transition counts wrong (zero) in HMaster /jmx

["Hari Sekhon (JIRA)" <ji...@apache.org>]

Hari Sekhon created HBASE-16636:
-----------------------------------

             Summary: Regions in Transition counts wrong (zero) in HMaster /jmx
                 Key: HBASE-16636
                 URL: https://issues.apache.org/jira/browse/HBASE-16636
             Project: HBase
          Issue Type: Bug
          Components: UI
    Affects Versions: 1.1.2
         Environment: HDP 2.3.2
            Reporter: Hari Sekhon
            Priority: Minor


I've discovered that the Region in Transition counts are wrong in the HMaster UI /jmx page.

The /master-status page clearly shows 3 regions stuck in transition but the /jmx page I was monitoring reported 0 for ritCountOverThreshold.

{code}
}, {
    "name" : "Hadoop:service=HBase,name=Master,sub=AssignmentManger",
    "modelerType" : "Master,sub=AssignmentManger",
    "tag.Context" : "master",
    ...
    "ritOldestAge" : 0,
    "ritCountOverThreshold" : 0,
    ...
    "ritCount" : 0,
{code}

I have a nagios plugin I wrote which was checking this which I've since had to rewrite to parse the /master-status page instead (the code is in check_hbase_regions_stuck_in_transition.py at https://github.com/harisekhon/nagios-plugins).

I'm attaching screenshots of both /master-status and /jmx to show the difference in the 2 pages on the HMaster.



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