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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7131) During HA upgrade, JournalNode should create a new committedTxnId file in the current directory
Date Tue, 23 Sep 2014 03:09:34 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14144250#comment-14144250
] 

Hadoop QA commented on HDFS-7131:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12670573/HDFS-7131.000.patch
  against trunk revision 7b8df93.

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

    {color:green}+1 tests included{color}.  The patch appears to include 1 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
2.0.3) 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-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.hdfs.TestEncryptionZonesWithKMS
                  org.apache.hadoop.hdfs.web.TestWebHdfsFileSystemContract
                  org.apache.hadoop.fs.TestUrlStreamHandler

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

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/8157//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/8157//console

This message is automatically generated.

> During HA upgrade, JournalNode should create a new committedTxnId file in the current
directory
> -----------------------------------------------------------------------------------------------
>
>                 Key: HDFS-7131
>                 URL: https://issues.apache.org/jira/browse/HDFS-7131
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.4.0
>            Reporter: Jing Zhao
>            Assignee: Jing Zhao
>         Attachments: HDFS-7131.000.patch
>
>
> Currently while doing HA upgrade, we do not create a new committedTxnId file    in the
new current directory of JournalNode. And before we have the fix in HDFS-7042, since the file
channel is never closed, for any new journal we're actually updating the committedTxnId file
in the previous directory. This can cause NN to fail to start while rollback.
> HDFS-7042 fixes the main part of the issue: the file channel inside of the committedTxnId
object gets closed thus later a new file can be created in the current directory. But maybe
it is still better to copy the content file during the upgrade so that we can always use it
for sanity check.



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