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From "jiraposter@reviews.apache.org (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5196) Failure in region split after PONR could cause region hole
Date Fri, 13 Jan 2012 19:12:41 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13185767#comment-13185767

jiraposter@reviews.apache.org commented on HBASE-5196:

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Review request for hbase.


When the master starts up, this patch tries to scan all offline split parents and fix up missing
daughters as the ServerShutdownHandler does.

This addresses bug HBASE-5196.


  src/main/java/org/apache/hadoop/hbase/master/HMaster.java cb2f084 
  src/main/java/org/apache/hadoop/hbase/master/handler/ServerShutdownHandler.java 8f4f4b8

  src/main/java/org/apache/hadoop/hbase/regionserver/SplitRequest.java 41f5dff 

Diff: https://reviews.apache.org/r/3488/diff


I test the fix in my real cluster and it does fix the problem.

I am working on a unit test now.



> Failure in region split after PONR could cause region hole
> ----------------------------------------------------------
>                 Key: HBASE-5196
>                 URL: https://issues.apache.org/jira/browse/HBASE-5196
>             Project: HBase
>          Issue Type: Bug
>          Components: master, regionserver
>    Affects Versions: 0.92.0, 0.94.0
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
> If region split fails after PONR, it relies on the master ServerShutdown handler to fix
it.  However, if the master doesn't get a chance to fix it.  There will be a hole in the region

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