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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11512) Write region open/close events to WAL
Date Wed, 20 Aug 2014 05:42:19 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11512?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14103415#comment-14103415
] 

Hudson commented on HBASE-11512:
--------------------------------

SUCCESS: Integrated in HBase-1.0 #114 (See [https://builds.apache.org/job/HBase-1.0/114/])
HBASE-11512 Write region open/close events to WAL (enis: rev cbc1bc7d49c19255081eb3c6a5818dee81fce170)
* hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java
* hbase-protocol/src/main/protobuf/WAL.proto
* hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALReplay.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestDistributedLogSplitting.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
* hbase-client/src/main/java/org/apache/hadoop/hbase/protobuf/ProtobufUtil.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/WALEdit.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLogUtil.java
* hbase-protocol/src/main/java/org/apache/hadoop/hbase/protobuf/generated/WALProtos.java


> Write region open/close events to WAL
> -------------------------------------
>
>                 Key: HBASE-11512
>                 URL: https://issues.apache.org/jira/browse/HBASE-11512
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>             Fix For: 0.99.0, 2.0.0
>
>         Attachments: hbase-11512_v1.patch, hbase-11512_v2.patch, hbase-11512_v3.patch
>
>
> Similar to writing flush events to WAL (HBASE-11511) and compaction events to WAL (HBASE-2231),
we should write region open and close events to WAL. 
> This is especially important for secondary region replicas, since we can use this information
to pick up primary regions' files from secondary replicas.
> However, we may need this for regular inter cluster replication as well, see issues HBASE-10343
and HBASE-9465. 
> A design doc for secondary replica replication can be found at HBASE-11183. 



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