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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-5345) Operator::close() leaks Operator::out, holding reference to buffers
Date Wed, 25 Sep 2013 12:26:05 GMT

    [ https://issues.apache.org/jira/browse/HIVE-5345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13777392#comment-13777392
] 

Hudson commented on HIVE-5345:
------------------------------

FAILURE: Integrated in Hive-trunk-hadoop1-ptest #181 (See [https://builds.apache.org/job/Hive-trunk-hadoop1-ptest/181/])
HIVE-5345 : Operator::close() leaks Operator::out, holding reference to buffers (Gopal V via
Ashutosh Chauhan) (hashutosh: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1526100)
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/Operator.java

                
> Operator::close() leaks Operator::out, holding reference to buffers
> -------------------------------------------------------------------
>
>                 Key: HIVE-5345
>                 URL: https://issues.apache.org/jira/browse/HIVE-5345
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 0.13.0
>         Environment: Ubuntu, LXC, jdk6-x86_64
>            Reporter: Gopal V
>            Assignee: Gopal V
>              Labels: memory-leak
>             Fix For: 0.13.0
>
>         Attachments: HIVE-5345.01.patch, out-leak.png
>
>
> When processing multiple splits on the same operator pipeline, the output collector in
Operator has a held reference, which causes issues.
> Operator::close() does not de-reference the OutputCollector object Operator::out held
by the object.
> This means that trying to allocate space for a new OutputCollector causes an OOM because
the old one is still reachable.

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