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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3732) Block scanner should read block information during initialization.
Date Tue, 15 Jul 2008 23:41:31 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12613780#action_12613780

Hadoop QA commented on HADOOP-3732:

-1 overall.  Here are the results of testing the latest attachment 
  against trunk revision 677054.

    +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 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 passed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2863/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2863/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2863/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2863/console

This message is automatically generated.

> Block scanner should read block information during initialization.
> ------------------------------------------------------------------
>                 Key: HADOOP-3732
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3732
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.17.0
>            Reporter: Konstantin Shvachko
>            Assignee: Raghu Angadi
>            Priority: Blocker
>             Fix For: 0.19.0
>         Attachments: HADOOP-3732.patch, HADOOP-3732.patch
> We see a lot of warning messages on each data-node during startup and upgrading from
0.17 to 0.18 saying:
> {code}
> 2008-07-08 22:22:15,711 WARN org.apache.hadoop.dfs.DataNode: Block /grid/3/hadoop/var/hdfs/data/current/blk_3359714082706415785
does not have a metafile!
> {code}
> The message received twice for each block, because the block information is first read
buy the data-node itself and then by the block scanner.

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