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From "Gary Helmling (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17017) Remove the current per-region latency histogram metrics
Date Sat, 05 Nov 2016 00:16:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15638149#comment-15638149
] 

Gary Helmling commented on HBASE-17017:
---------------------------------------

The Counter metrics are much less expensive (1 Counter instance vs 260 instances per histogram).
 And they're useful for identifying hot regions, so I think we should keep those around. 
In theory the size histograms could also be useful for that, but I can't say I've used them
much.  So dumping the time and size histograms seems okay to me.

> Remove the current per-region latency histogram metrics
> -------------------------------------------------------
>
>                 Key: HBASE-17017
>                 URL: https://issues.apache.org/jira/browse/HBASE-17017
>             Project: HBase
>          Issue Type: Sub-task
>          Components: metrics
>    Affects Versions: 2.0.0, 1.4.0
>            Reporter: Duo Zhang
>            Assignee: Enis Soztutar
>             Fix For: 2.0.0, 1.4.0
>
>         Attachments: Screen Shot 2016-11-04 at 3.00.21 PM.png, Screen Shot 2016-11-04
at 3.38.42 PM.png, hbase-17017_v1.patch
>
>




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