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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5249) Fix dumper thread which may die silently
Date Tue, 24 Sep 2013 00:39:02 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13775860#comment-13775860
] 

Jing Zhao commented on HDFS-5249:
---------------------------------

+1 for the patch.
                
> Fix dumper thread which may die silently
> ----------------------------------------
>
>                 Key: HDFS-5249
>                 URL: https://issues.apache.org/jira/browse/HDFS-5249
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: nfs
>            Reporter: Brandon Li
>            Assignee: Brandon Li
>         Attachments: HDFS-5249.02.patch, HDFS-5249.patch
>
>
> Dumper thread can get an NPE when the WriteCtx it's about to work on is just deleted
by write back thread. 
> A dead dumper thread could cause out-of-memory error when too many pending writes accumulated
for one opened file.  

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