[jira] [Commented] (MAPREDUCE-4737) Hadoop does not close output file / does not call Mapper.cleanup if exception in map

["Arun C Murthy (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13630614#comment-13630614 ] 

Arun C Murthy commented on MAPREDUCE-4737:
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Agree with [~tomwhite] - we'll need to mark this as incompatible even though it's actually making behaviour consistent with o.a.h.mapred.

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[~daijy] Can you please go ahead and add a test case for this? Thanks!
                
>  Hadoop does not close output file / does not call Mapper.cleanup if exception in map
> -------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4737
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4737
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 1-win
>            Reporter: Daniel Dai
>            Assignee: Daniel Dai
>         Attachments: HADOOP-23-2.patch, HADOOP-8904-1.patch
>
>
> Find this in Pig unit test TestStore under Windows. There are dangling files because map does not close the file when exception happens in map(). In Windows, Hadoop will not remove a file if it is not closed. This happens in reduce() as well.

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