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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9514) Prevent region from assigning before log splitting is done
Date Wed, 02 Oct 2013 01:08:24 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13783551#comment-13783551
] 

Hudson commented on HBASE-9514:
-------------------------------

SUCCESS: Integrated in HBase-TRUNK-on-Hadoop-2.0.0 #771 (See [https://builds.apache.org/job/HBase-TRUNK-on-Hadoop-2.0.0/771/])
HBASE-9514 Prevent region from assigning before log splitting is done (jxiang: rev 1528227)
* /hbase/trunk/hbase-client/src/main/java/org/apache/hadoop/hbase/ClusterStatus.java
* /hbase/trunk/hbase-it/src/test/java/org/apache/hadoop/hbase/IntegrationTestBase.java
* /hbase/trunk/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/actions/AddColumnAction.java
* /hbase/trunk/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/actions/CompactRandomRegionOfTableAction.java
* /hbase/trunk/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/actions/DumpClusterStatusAction.java
* /hbase/trunk/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/actions/FlushRandomRegionOfTableAction.java
* /hbase/trunk/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/actions/MergeRandomAdjacentRegionsOfTableAction.java
* /hbase/trunk/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/actions/MoveRandomRegionOfTableAction.java
* /hbase/trunk/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/actions/MoveRegionsOfTableAction.java
* /hbase/trunk/hbase-it/src/test/java/org/apache/hadoop/hbase/chaos/factories/SlowDeterministicMonkeyFactory.java
* /hbase/trunk/hbase-it/src/test/java/org/apache/hadoop/hbase/test/IntegrationTestBigLinkedList.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/CatalogJanitor.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/DeadServer.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/GeneralBulkAssigner.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/RegionStates.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/ServerManager.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/ClosedRegionHandler.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/EnableTableHandler.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/MetaServerShutdownHandler.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/master/handler/ServerShutdownHandler.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/util/HBaseFsck.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/TestDrainingServer.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestAssignmentManagerOnCluster.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestSplitTransactionOnCluster.java


> Prevent region from assigning before log splitting is done
> ----------------------------------------------------------
>
>                 Key: HBASE-9514
>                 URL: https://issues.apache.org/jira/browse/HBASE-9514
>             Project: HBase
>          Issue Type: Bug
>          Components: Region Assignment
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
>            Priority: Blocker
>             Fix For: 0.98.0, 0.96.0
>
>         Attachments: trunk-9514_v1.patch, trunk-9514_v2.patch, trunk-9514_v3.patch, trunk-9514_v5.1.patch,
trunk-9514_v5.1.patch, trunk-9514_v5.2.patch, trunk-9514_v5.3.patch, trunk-9514_v5.4.patch,
trunk-9514_v5.5.patch, trunk-9514_v5.patch
>
>
> If a region is assigned before log splitting is done by the server shutdown handler,
the edits belonging to this region in the hlogs of the dead server will be lost.
> Generally this is not an issue if users don't assign/unassign a region from hbase shell
or via hbase admin. These commands are marked for experts only in the hbase shell help too.
 However, chaos monkey doesn't care.
> If we can prevent from assigning such regions in a bad time, it would make things a little
safer.



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