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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3612) Single namenode image directory config warning can be improved
Date Fri, 13 Jul 2012 03:30:36 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13413460#comment-13413460
] 

Hadoop QA commented on HDFS-3612:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12536314/hdfs3612-2.txt
  against trunk revision .

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

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +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 failed these unit tests in hadoop-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.hdfs.server.namenode.TestBackupNode
                  org.apache.hadoop.hdfs.server.common.TestJspHelper

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

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/2811//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/2811//console

This message is automatically generated.
                
> Single namenode image directory config warning can be improved
> --------------------------------------------------------------
>
>                 Key: HDFS-3612
>                 URL: https://issues.apache.org/jira/browse/HDFS-3612
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: name-node
>    Affects Versions: 2.0.0-alpha
>            Reporter: Harsh J
>            Assignee: Andy Isaacson
>            Priority: Trivial
>              Labels: newbie
>         Attachments: hdfs3612-2.txt, hdfs3612.txt
>
>
> Currently, if you configure the NameNode to run with just one dfs.namenode.name.dir directory,
it prints:
> {code}
> 12/07/08 20:00:22 WARN namenode.FSNamesystem: Only one dfs.namenode.name.dir directory
configured , beware data loss!{code}
> We can improve this in a few ways as it is slightly ambiguous:
> # Fix punctuation spacing, there's always a space after a punctuation mark but never
before one.
> # Perhaps the message is better printed with a reason of why it may cause a scare of
data loss. For instance, we can print "Detected a single storage directory in dfs.namenode.name.dir
configuration. Beware of dataloss due to lack of redundant storage directories" or so.

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