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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14166) Per-Region metrics can be stale
Date Mon, 17 Aug 2015 23:58:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14700472#comment-14700472
] 

Enis Soztutar commented on HBASE-14166:
---------------------------------------

bq. This looks like a bug that should be picked back to other active release branches. However
this is an interesting change that adds a background task for cleaning the JMX cache and locks
for said cleaning. I plan to pick it back in a couple of days but won't if there are concerns
or objections.
Agreed. [~eclark] is this applicable to earlier versions? 

> 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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