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Date: Fri, 30 Oct 2009 01:58:59 +0000 (UTC)
From: "Tsz Wo (Nicholas), SZE (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Subject: [jira] Commented: (HDFS-732) HDFS files are ending up truncated
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    [ 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:
{noformat}
     [exec] -1 overall.  
     [exec] 
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec] 
     [exec]     -1 tests included.  The patch doesn't appear to include any new or modified tests.
     [exec]                         Please justify why no tests are needed for this patch.
     [exec] 
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec] 
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler warnings.
     [exec] 
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec] 
     [exec]     +1 Eclipse classpath. The patch retains Eclipse classpath integrity.
{noformat}
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 side.
> I will post some relevant logs (they are too large to be put into the description)
>  

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