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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-732) HDFS files are ending up truncated
Date Fri, 30 Oct 2009 01:58:59 GMT

    [ https://issues.apache.org/jira/browse/HDFS-732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12771739#action_12771739

Tsz Wo (Nicholas), SZE commented on HDFS-732:

Tested on 0.20:
     [exec] -1 overall.  
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec]     -1 tests included.  The patch doesn't appear to include any new or modified
     [exec]                         Please justify why no tests are needed for this patch.
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec]     +1 Eclipse classpath. The patch retains Eclipse classpath integrity.
All unit tests passed except TestDatanodeBlockScanner, TestFsck and TestReduceFetch.  The
failures are not related to the patch.  These three tests also failed on a clean 0.20 trunk
in my machine.  See HDFS-734 for TestDatanodeBlockScanner.  I will file new issues for TestFsck
and TestReduceFetch.

No new test is added since the change is very simple.

I am going to commit the patch to 0.20 only since we don't have plan to release 0.19.3.

> HDFS files are ending up truncated
> ----------------------------------
>                 Key: HDFS-732
>                 URL: https://issues.apache.org/jira/browse/HDFS-732
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs client
>    Affects Versions: 0.20.2
>            Reporter: Christian Kunz
>            Priority: Blocker
>             Fix For: 0.20.2
>         Attachments: h732_20091028_0.20.patch
> We recently started to use hadoop-0.20.1 in our production environment (less than 2 weeks
ago) and already had 3 instances of truncated files, more than we had for months using hadoop-0.18.3.
> Writing is done using libhdfs, although it rather seems to be a problem on the server
> I will post some relevant logs (they are too large to be put into the description)

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