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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5780) Fix slightly confusing log from "-metaSave" on NameNode
Date Sat, 09 May 2009 00:54:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12707588#action_12707588

Hadoop QA commented on HADOOP-5780:

-1 overall.  Here are the results of testing the latest attachment 
  against trunk revision 772960.

    +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 tests are needed for this patch.

    +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 warnings.

    +1 Eclipse classpath. The patch retains Eclipse classpath integrity.

    +1 release audit.  The applied patch does not increase the total number of release audit

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

    -1 contrib tests.  The patch failed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-vesta.apache.org/309/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-vesta.apache.org/309/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-vesta.apache.org/309/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-vesta.apache.org/309/console

This message is automatically generated.

> Fix slightly confusing log from "-metaSave" on NameNode
> -------------------------------------------------------
>                 Key: HADOOP-5780
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5780
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.20.0
>            Reporter: Raghu Angadi
>            Assignee: Raghu Angadi
>            Priority: Minor
>             Fix For: 0.21.0
>         Attachments: HADOOP-5780.patch, HADOOP-5780.patch, HADOOP-5780.patch
> After HADOOP-4103, "-metaSave" on NameNode prints "MISSING" in the line for a block that
does not have any good replicas left. 
> e.g. : {noformat}
> Metasave: Blocks waiting for replication: 1
> blk_6735500019364591152_0 (replicas: l: 0 d: 0 c: 2 e: 0 MISSING)
: :
> {noformat}
> "0 MISSING" in the log might imply to the user that there is no missing block, though
it implies "e(xcess replicas) : 0".
> We should fix that. Also as part of this I would like to indicate which datanodes are
decommissioned or contain the corrupt replicas.

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