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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5471) SyncLogs thread in Child.java would update wrong file for a cleanup attempt, in some cases.
Date Fri, 13 Mar 2009 09:42:50 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5471?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amareshwari Sriramadasu updated HADOOP-5471:
--------------------------------------------

    Status: Patch Available  (was: Open)

test-patch result:
{noformat}
     [exec]
     [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.
     [exec]
     [exec]     +1 release audit.  The applied patch does not increase the total number of
release audit warnings.
     [exec]
{noformat}
It is difficult to write testcase for this. 

> SyncLogs thread in Child.java would update wrong file for a cleanup attempt, in some
cases.
> -------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-5471
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5471
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.19.1
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Amareshwari Sriramadasu
>             Fix For: 0.19.2
>
>         Attachments: patch-5471.txt
>
>
> This happens in the following scenario:
> If jvm is launched for a cleanup attempt and getTask has not returned yet. thus, isCleanup
value is not obtained yet. But, the SyncLogs thread would do a syncLogs with wrong isCleanup
value (i.e. with wrong index file). 

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