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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 21:33:55 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14393479#comment-14393479
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Dave Latham commented on HBASE-12891:
-------------------------------------

I see it has been closed.  [~apurtell] Are you saying given the problems that you personally
don't want to be committing it, that you don't want to see it continue on this JIRA (and another
should be filed), or that as RM you don't want this in branch 0.98 at all?  

> 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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