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Date: Thu, 30 Dec 2010 06:23:46 -0500 (EST)
From: "Hadoop QA (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Subject: [jira] Commented: (HDFS-1540) Make Datanode handle errors to
 namenode.register call more elegantly
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    [ https://issues.apache.org/jira/browse/HDFS-1540?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12976014#action_12976014 ] 

Hadoop QA commented on HDFS-1540:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12467161/datanodeException5.txt
  against trunk revision 1053214.

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit warnings.

    -1 core tests.  The patch failed these core unit tests:
                  org.apache.hadoop.hdfs.server.namenode.TestStorageRestore
                  org.apache.hadoop.hdfs.TestFileConcurrentReader

    -1 contrib tests.  The patch failed contrib unit tests.

    +1 system test framework.  The patch passed system test framework compile.

Test results: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/60//testReport/
Findbugs warnings: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/60//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://hudson.apache.org/hudson/job/PreCommit-HDFS-Build/60//console

This message is automatically generated.

> Make Datanode handle errors to namenode.register call more elegantly
> --------------------------------------------------------------------
>
>                 Key: HDFS-1540
>                 URL: https://issues.apache.org/jira/browse/HDFS-1540
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: data-node
>    Affects Versions: 0.20.1, 0.20.2, 0.21.0
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>             Fix For: 0.23.0
>
>         Attachments: datanodeException1.txt, datanodeException2.txt, datanodeException3.txt, datanodeException4.txt, datanodeException5.txt, datanodeException5.txt
>
>
> When a datanode receives a "Connection reset by peer" from the namenode.register(), it exits. This causes many datanodes to die.

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