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From "Hari Sekhon (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-16636) Regions in Transition counts wrong (zero) in HMaster /jmx, prevents detecting Regions Stuck in Transition
Date Thu, 15 Sep 2016 09:04:20 GMT

     [ https://issues.apache.org/jira/browse/HBASE-16636?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hari Sekhon updated HBASE-16636:
--------------------------------
    Attachment: ritCountOverThreshold.png
                Regions_in_Transition_UI.png

> Regions in Transition counts wrong (zero) in HMaster /jmx, prevents detecting Regions
Stuck in Transition
> ---------------------------------------------------------------------------------------------------------
>
>                 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
>         Attachments: Regions_in_Transition_UI.png, ritCountOverThreshold.png
>
>
> 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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