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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5075) DistCp leaks input file handles
Date Wed, 20 Mar 2013 10:47:16 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13607491#comment-13607491
] 

Hudson commented on MAPREDUCE-5075:
-----------------------------------

Integrated in Hadoop-trunk-Commit #3494 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/3494/])
    MAPREDUCE-5075. DistCp leaks input file handles since ThrottledInputStream does not close
the wrapped InputStream.  Contributed by Chris Nauroth (Revision 1458741)

     Result = SUCCESS
szetszwo : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1458741
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/mapred/RetriableFileCopyCommand.java
* /hadoop/common/trunk/hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/util/ThrottledInputStream.java
* /hadoop/common/trunk/hadoop-tools/hadoop-distcp/src/test/java/org/apache/hadoop/tools/TestIntegration.java

                
> DistCp leaks input file handles
> -------------------------------
>
>                 Key: MAPREDUCE-5075
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5075
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: distcp
>    Affects Versions: 3.0.0
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>             Fix For: 2.0.5-beta
>
>         Attachments: MAPREDUCE-5075.1.patch
>
>
> DistCp wraps the {{InputStream}} for each input file it reads in an instance of {{ThrottledInputStream}}.
 This class does not close the wrapped {{InputStream}}.  {{RetriableFileCopyCommand}} guarantees
that the {{ThrottledInputStream}} gets closed, but without closing the underlying wrapped
stream, it still leaks a file handle.

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