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https://issues.apache.org/jira/browse/HDFS-2120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13064929#comment-13064929
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Hadoop QA commented on HDFS-2120:
---------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12486374/HDFS-2120-4.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 does not increase the total number of
release audit 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/920//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HDFS-Build/920//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/920//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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