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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14166) Per-Region metrics can be stale
Date Thu, 20 Aug 2015 00:43:46 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14704057#comment-14704057
] 

Nick Dimiduk commented on HBASE-14166:
--------------------------------------

Yeah, looks like we should have it back. This cache-buster stuff is nasty business. I'm not
so deep into it yet -- is this a JMX cache bug or a hadoop metrics2 sink bug, or something
else?

> Per-Region metrics can be stale
> -------------------------------
>
>                 Key: HBASE-14166
>                 URL: https://issues.apache.org/jira/browse/HBASE-14166
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.1.0.1
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>             Fix For: 2.0.0, 1.2.0
>
>         Attachments: HBASE-14166-v1.patch, HBASE-14166-v2.patch, HBASE-14166-v3.patch,
HBASE-14166-v4.patch, HBASE-14166-v5.patch, HBASE-14166.patch
>
>
> We're seeing some machines that are reporting only old region metrics. It seems like
at some point the Hadoop metrics system decided which metrics to display and which not to.
From then on it was not changing.



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