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https://issues.apache.org/jira/browse/HBASE-22774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16906960#comment-16906960
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Hudson commented on HBASE-22774:
--------------------------------

SUCCESS: Integrated in Jenkins build HBase-1.3-IT #617 (See 
[https://builds.apache.org/job/HBase-1.3-IT/617/])
HBASE-22774 [WAL] RegionGroupingStrategy loses its function after split 
(reidchan: rev d2b310bca8140515b436aa34b2bda5c8d0236803)
* (edit) 
hbase-server/src/main/java/org/apache/hadoop/hbase/wal/RegionGroupingProvider.java
* (edit) 
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
* (edit) 
hbase-server/src/main/java/org/apache/hadoop/hbase/wal/BoundedGroupingStrategy.java
* (edit) 
hbase-server/src/main/java/org/apache/hadoop/hbase/wal/NamespaceGroupingStrategy.java
* (edit) 
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestSplitTransaction.java


> [WAL] RegionGroupingStrategy loses its function after split
> -----------------------------------------------------------
>
>                 Key: HBASE-22774
>                 URL: https://issues.apache.org/jira/browse/HBASE-22774
>             Project: HBase
>          Issue Type: Bug
>          Components: Performance, wal
>    Affects Versions: 1.4.6
>            Reporter: Reid Chan
>            Assignee: Reid Chan
>            Priority: Major
>             Fix For: 1.5.0, 1.3.6, 1.4.11
>
>         Attachments: HBASE-22774.branch-1.001.patch, 
> HBASE-22774.branch-1.002.patch
>
>
> Having {{hbase.wal.provider}} set {{multiwal}}, it works fine on regionserver 
> restart, at the beginning.
> But when region split happened, those daughter regions would inherit her 
> parent's WAL, which violates the setting. For example, when 
> {{hbase.wal.regiongrouping.strategy}} set {{identity}}, each daughter regions 
> should create its own WAL instead of inheriting. 



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