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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9249) Add cp hook before setting PONR in split
Date Fri, 30 Aug 2013 11:53:52 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13754619#comment-13754619

Hadoop QA commented on HBASE-9249:

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 3 new or modified

    {color:green}+1 hadoop1.0{color}.  The patch compiles against the hadoop 1.0 profile.

    {color:green}+1 hadoop2.0{color}.  The patch compiles against the hadoop 2.0 profile.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 lineLengths{color}.  The patch does not introduce lines longer than 100

  {color:green}+1 site{color}.  The mvn site goal succeeds with this patch.

    {color:green}+1 core tests{color}.  The patch passed unit tests in .

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/6983//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6983//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6983//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6983//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6983//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6983//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6983//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop1-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6983//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/6983//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/6983//console

This message is automatically generated.
> Add cp hook before setting PONR in split
> ----------------------------------------
>                 Key: HBASE-9249
>                 URL: https://issues.apache.org/jira/browse/HBASE-9249
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: rajeshbabu
>            Assignee: rajeshbabu
>         Attachments: HBASE-9249.patch, HBASE-9249_v2.patch, HBASE-9249_v3.patch, HBASE-9249_v4.patch
> This hook helps to perform split on user region and corresponding index region such that
both will be split or none.
> With this hook split for user and index region as follows
> user region
> ===========
> 1) Create splitting znode for user region split
> 2) Close parent user region
> 3) split user region storefiles
> 4) instantiate child regions of user region
> Through the new hook we can call index region transitions as below
> index region
> ===========
> 5) Create splitting znode for index region split
> 6) Close parent index region
> 7) Split storefiles of index region
> 8) instantiate child regions of the index region
> If any failures in 5,6,7,8 rollback the steps and return null, on null return throw exception
to rollback for 1,2,3,4
> 9) set PONR
> 10) do batch put of offline and split entries for user and index regions
> index region
> ============
> 11) open daughers of index regions and transition znode to split. This step we will do
through preSplitAfterPONR hook. Opening index regions before opening user regions helps to
avoid put failures if there is colocation mismatch(this can happen if user regions opening
completed but index regions opening in progress)
> user region
> ===========
> 12) open daughers of user regions and transition znode to split.
> Even if region server crashes also at the end both user and index regions will be split
or none

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