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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5192) Block reciever should not remove a finalized block when block replication fails
Date Thu, 12 Feb 2009 21:10:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12673057#action_12673057
] 

Hairong Kuang commented on HADOOP-5192:
---------------------------------------

    [exec] +1 overall.
     [exec]
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec]
     [exec]     +1 tests included.  The patch appears to include 3 new or modified tests.
     [exec]
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec]
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler
warnings.
     [exec]
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec]
     [exec]     +1 Eclipse classpath. The patch retains Eclipse classpath integrity.
     [exec]
     [exec]     +1 release audit.  The applied patch does not increase the total number of
release audit warnings.

ant test-core passed all unit tests except for TestMapReduceLocal.

> Block reciever should not remove a finalized block when block replication fails
> -------------------------------------------------------------------------------
>
>                 Key: HADOOP-5192
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5192
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.18.3
>            Reporter: Hairong Kuang
>            Assignee: Hairong Kuang
>            Priority: Blocker
>             Fix For: 0.18.4, 0.19.1
>
>         Attachments: blockCleanup.patch, blockCleanup1.patch, blockRemove.patch
>
>
> HADOOP-4702 makes block receivers to remove the received block in case of a block replication
failure. But the block should not be removed if the cause of the failure is that the block
to be received already exists. The key is that a block receiver should allow to remove only
partial blocks in case of block replication failures. 

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