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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3373) FileContext HDFS implementation can leak socket caches
Date Mon, 27 Aug 2012 21:29:07 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13442734#comment-13442734
] 

Hadoop QA commented on HDFS-3373:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12542653/HDFS-3373.trunk.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified test files.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    -1 findbugs.  The patch appears to introduce 2 new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    -1 core tests.  The patch failed these unit tests in hadoop-hdfs-project/hadoop-hdfs:

                  org.apache.hadoop.hdfs.TestConnCache
                  org.apache.hadoop.hdfs.TestHftpDelegationToken

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/3101//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HDFS-Build/3101//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-hdfs.html
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/3101//console

This message is automatically generated.
                
> FileContext HDFS implementation can leak socket caches
> ------------------------------------------------------
>
>                 Key: HDFS-3373
>                 URL: https://issues.apache.org/jira/browse/HDFS-3373
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs client
>    Affects Versions: 2.0.0-alpha, 3.0.0
>            Reporter: Todd Lipcon
>            Assignee: John George
>         Attachments: HDFS-3373.branch-23.patch, HDFS-3373.trunk.patch
>
>
> As noted by Nicholas in HDFS-3359, FileContext doesn't have a close() method, and thus
never calls DFSClient.close(). This means that, until finalizers run, DFSClient will hold
on to its SocketCache object and potentially have a lot of outstanding sockets/fds held on
to.

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