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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1997) Image transfer process misreports client side exceptions
Date Thu, 26 May 2011 07:31:47 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13039557#comment-13039557
] 

Hadoop QA commented on HDFS-1997:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12480473/hdfs-1997.txt
  against trunk revision 1127759.

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

    +1 tests included.  The patch appears to include 2 new or modified tests.

    +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.TestDFSStorageStateRecovery

    +1 contrib tests.  The patch passed contrib unit tests.

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

Test results: https://builds.apache.org/hudson/job/PreCommit-HDFS-Build/630//testReport/
Findbugs warnings: https://builds.apache.org/hudson/job/PreCommit-HDFS-Build/630//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/hudson/job/PreCommit-HDFS-Build/630//console

This message is automatically generated.

> Image transfer process misreports client side exceptions
> --------------------------------------------------------
>
>                 Key: HDFS-1997
>                 URL: https://issues.apache.org/jira/browse/HDFS-1997
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: name-node
>    Affects Versions: 0.22.0, Edit log branch (HDFS-1073), 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: 0.22.0, Edit log branch (HDFS-1073)
>
>         Attachments: hdfs-1997.txt
>
>
> If the image transfer process receives a client-side error when transferring edit logs,
it will throw an exception before it has completely read all of the input from the server-side
servlet. Then, the finally clause will throw a new error, since the received length is less
than the length given in the header. This masks the client-side exception and makes it look
like a network error or a server-side problem.

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