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From "Dave Latham (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12891) Parallel execution for Hbck checkRegionConsistency
Date Thu, 02 Apr 2015 22:52:59 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14393647#comment-14393647
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Dave Latham commented on HBASE-12891:
-------------------------------------

Andrew suggested running the test several times and is open to this still making it to 0.98
if someone else commits it.  FWIW I've done now that and had it pass consistently, so am hoping
that Enis will be willing to commit to 0.98.

> 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: Dave Latham
>              Labels: performance, scalability
>             Fix For: 2.0.0, 1.1.0
>
>         Attachments: HBASE-12891-v1.patch, HBASE-12891-v3.patch, HBASE-12891-v4-0.98.patch,
HBASE-12891-v4-branch-1.patch, HBASE-12891-v4.1-0.98.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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