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From "Stephen Yuan Jiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12891) Parallel execution for Hbck checkRegionConsistency
Date Mon, 30 Mar 2015 23:33:53 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14387602#comment-14387602
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Stephen Yuan Jiang commented on HBASE-12891:
--------------------------------------------

Sounds good.

> Parallel execution for Hbck checkRegionConsistency
> --------------------------------------------------
>
>                 Key: HBASE-12891
>                 URL: https://issues.apache.org/jira/browse/HBASE-12891
>             Project: HBase
>          Issue Type: Improvement
>          Components: hbck
>    Affects Versions: 2.0.0, 0.98.10, 1.1.0
>            Reporter: churro morales
>            Assignee: Stephen Yuan Jiang
>              Labels: performance, scalability
>             Fix For: 2.0.0, 1.1.0, 0.98.13
>
>         Attachments: HBASE-12891-v1.patch, HBASE-12891-v3.patch, HBASE-12891-v4.patch,
HBASE-12891.98.patch, HBASE-12891.patch, HBASE-12891.patch, HBASE-12891.v2-branch-1.patch,
HBASE-12891.v2-master.patch, hbase-12891-addendum1.patch
>
>
> We have a lot of regions on our cluster ~500k and noticed that hbck took quite some time
in checkAndFixConsistency().  [~davelatham] patched our cluster to do this check in parallel
to speed things up.  I'll attach the patch.



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