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From "Mikhail Bautin (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-4686) [89-fb] Fix per-store metrics aggregation
Date Thu, 27 Oct 2011 22:26:35 GMT

     [ https://issues.apache.org/jira/browse/HBASE-4686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Mikhail Bautin updated HBASE-4686:

    Attachment: HBASE-4686-jira-89-fb-Fix-per-store-metrics-aggregat-20111027152723-05bea421.patch

Second version of the patch.
> [89-fb] Fix per-store metrics aggregation 
> ------------------------------------------
>                 Key: HBASE-4686
>                 URL: https://issues.apache.org/jira/browse/HBASE-4686
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Mikhail Bautin
>            Assignee: Mikhail Bautin
>         Attachments: HBASE-4686-TestRegionServerMetics-and-Store-metric-a-20111027134023-cc718144.patch,
> In r1182034 per-Store metrics were broken, because the aggregation of StoreFile metrics
over all stores in a region was replaced by overriding them every time. We saw these metrics
drop by a factor of numRegions on a production cluster -- thanks to Kannan for noticing this!
 We need to fix the metrics and add a unit test to ensure regressions like this don't happen
in the future.

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