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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6038) JournalNode hardcodes NameNodeLayoutVersion in the edit log file
Date Fri, 07 Mar 2014 22:03:42 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13924388#comment-13924388
] 

Hadoop QA commented on HDFS-6038:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12633422/HDFS-6038.006.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 16 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-common-project/hadoop-common
hadoop-hdfs-project/hadoop-hdfs hadoop-hdfs-project/hadoop-hdfs/src/contrib/bkjournal:

                  org.apache.hadoop.hdfs.server.namenode.TestCacheDirectives
                  org.apache.hadoop.hdfs.tools.offlineEditsViewer.TestOfflineEditsViewer

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/6345//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/6345//console

This message is automatically generated.

> JournalNode hardcodes NameNodeLayoutVersion in the edit log file
> ----------------------------------------------------------------
>
>                 Key: HDFS-6038
>                 URL: https://issues.apache.org/jira/browse/HDFS-6038
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: journal-node, namenode
>            Reporter: Haohui Mai
>            Assignee: Jing Zhao
>         Attachments: HDFS-6038.000.patch, HDFS-6038.001.patch, HDFS-6038.002.patch, HDFS-6038.003.patch,
HDFS-6038.004.patch, HDFS-6038.005.patch, HDFS-6038.006.patch, HDFS-6038.007.patch
>
>
> In HA setup, the JNs receive edit logs (blob) from the NN and write into edit log files.
In order to write well-formed edit log files, the JNs prepend a header for each edit log file.
> The problem is that the JN hard-codes the version (i.e., {{NameNodeLayoutVersion}} in
the edit log, therefore it generates incorrect edit logs when the newer release bumps the
{{NameNodeLayoutVersion}} during rolling upgrade.



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