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From "Sean Busbey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15222) Use less contended classes for metrics
Date Tue, 23 Feb 2016 22:59:18 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15159823#comment-15159823
] 

Sean Busbey commented on HBASE-15222:
-------------------------------------

Alternatively, we could waste a bunch of energy on getting a manual ordering of our modules
in place, as was required prior to YETUS-280. that would allow us to get the correct behavior
with the current release.

Personally, I don't think it's worth it given how un-often we run into this problem. I'll
start a Yetus release vote on Friday and on Monday we'll switch to new release that contains
the fix.

> Use less contended classes for metrics
> --------------------------------------
>
>                 Key: HBASE-15222
>                 URL: https://issues.apache.org/jira/browse/HBASE-15222
>             Project: HBase
>          Issue Type: Bug
>          Components: metrics
>    Affects Versions: 2.0.0, 1.2.0, 1.3.0
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>            Priority: Critical
>             Fix For: 2.0.0, 1.3.0
>
>         Attachments: HBASE-15222-v1.patch, HBASE-15222-v10.patch, HBASE-15222-v11.patch,
HBASE-15222-v12.patch, HBASE-15222-v13.patch, HBASE-15222-v2.patch, HBASE-15222-v3.patch,
HBASE-15222-v5.patch, HBASE-15222-v6.patch, HBASE-15222-v8.patch, HBASE-15222-v9.patch, HBASE-15222.patch
>
>
> Running the benchmarks now, but it looks like the results are pretty extreme. The locking
in our histograms is pretty extreme.



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