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From "Phabricator (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5072) Support Max Value for Per-Store Metrics
Date Tue, 20 Dec 2011 18:24:31 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5072?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13173377#comment-13173377
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Phabricator commented on HBASE-5072:
------------------------------------

Kannan has commented on the revision "[jira] [HBASE-5072] Support Max Value for Per-Store
Metrics".

  Ok -- go it. You are tracking the max only across all CFs. Sounds good. Thanks for the clarification.
I misread the code there.

REVISION DETAIL
  https://reviews.facebook.net/D945

                
> Support Max Value for Per-Store Metrics
> ---------------------------------------
>
>                 Key: HBASE-5072
>                 URL: https://issues.apache.org/jira/browse/HBASE-5072
>             Project: HBase
>          Issue Type: Improvement
>          Components: metrics, regionserver
>            Reporter: Nicolas Spiegelberg
>            Assignee: Nicolas Spiegelberg
>            Priority: Minor
>             Fix For: 0.94.0
>
>         Attachments: D945.1.patch, D945.2.patch
>
>
> We were bit in our multi-tenant cluster because one of our Stores encountered a bug and
grew its StoreFile count.  We didn't notice this because the StoreFile count currently reported
by the RegionServer is an average of all Stores in the region.  For the per-Store metrics,
we should also record the max so we can notice outliers.

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