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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2120) on reconnect, DN can connect to NN even with different source versions
Date Wed, 13 Jul 2011 21:59:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13064899#comment-13064899
] 

Hadoop QA commented on HDFS-2120:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12486367/HDFS-2120-2.patch
  against trunk revision 1145843.

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

    +1 tests included.  The patch appears to include 3 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 generated 1 release audit warnings (more than the
trunk's current 0 warnings).

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

    +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/job/PreCommit-HDFS-Build/918//testReport/
Release audit warnings: https://builds.apache.org/job/PreCommit-HDFS-Build/918//artifact/trunk/patchprocess/patchReleaseAuditProblems.txt
Findbugs warnings: https://builds.apache.org/job/PreCommit-HDFS-Build/918//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/918//console

This message is automatically generated.

> on reconnect, DN can connect to NN even with different source versions
> ----------------------------------------------------------------------
>
>                 Key: HDFS-2120
>                 URL: https://issues.apache.org/jira/browse/HDFS-2120
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: John George
>            Assignee: John George
>         Attachments: HDFS-2120-2.patch, HDFS-2120-3.patch, HDFS-2120-4.patch, HDFS-2120.patch
>
>
> DN or NN does not check for source versions in cases when NN goes away or has lost connection.
The only check that is done by NN is for LAYOUT_VERSION and DN does not check for any version
mismatch. 

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