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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4298) StorageRetentionManager spews warnings when used with QJM
Date Tue, 21 May 2013 16:31:16 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13663091#comment-13663091
] 

Hadoop QA commented on HDFS-4298:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12584012/HDFS-4298.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 5 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}.  The javadoc tool did not generate any 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.TestListCorruptFileBlocks
                  org.apache.hadoop.contrib.bkjournal.TestBookKeeperHACheckpoints

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

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/4420//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/4420//console

This message is automatically generated.
                
> StorageRetentionManager spews warnings when used with QJM
> ---------------------------------------------------------
>
>                 Key: HDFS-4298
>                 URL: https://issues.apache.org/jira/browse/HDFS-4298
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 3.0.0, 2.0.3-alpha
>            Reporter: Todd Lipcon
>            Assignee: Aaron T. Myers
>         Attachments: HDFS-4298.patch, HDFS-4298.patch
>
>
> When the NN is configured with a QJM, we see the following warning message every time
a checkpoint is made or uploaded:
> 12/12/10 16:07:52 WARN namenode.FSEditLog: Unable to determine input streams from QJM
to [127.0.0.1:13001, 127.0.0.1:13002, 127.0.0.1:13003]. Skipping.
> org.apache.hadoop.hdfs.qjournal.client.QuorumException: Got too many exceptions to achieve
quorum size 2/3. 3 exceptions thrown:
> 127.0.0.1:13002: Asked for firstTxId 114837 which is in the middle of file /tmp/jn-2/myjournal/current/edits_0000000000000095185-0000000000000114846
> ...
> This is because, since HDFS-2946, the NN calls {{selectInputStreams}} to determine the
number of log segments and put a cap on the number. This API throws an exception in the case
of QJM if the argument falls in the middle of an edit log boundary.

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