[jira] [Commented] (HADOOP-6762) exception while doing RPC I/O closes channel

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-6762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13091985#comment-13091985 ] 

Hadoop QA commented on HADOOP-6762:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12491826/hadoop-6762.txt
  against trunk revision .

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

    +1 tests included.  The patch appears to include 6 new or modified tests.

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

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

    -1 findbugs.  The patch appears to introduce 4 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:

                  org.apache.hadoop.ipc.TestRPC

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

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/89//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HADOOP-Build/89//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-annotations.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HADOOP-Build/89//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HADOOP-Build/89//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-auth.html
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/89//console

This message is automatically generated.

> exception while doing RPC I/O closes channel
> --------------------------------------------
>
>                 Key: HADOOP-6762
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6762
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 0.20.2
>            Reporter: sam rash
>            Assignee: Todd Lipcon
>            Priority: Critical
>             Fix For: 0.22.0, 0.23.0
>
>         Attachments: hadoop-6762-1.txt, hadoop-6762-10.txt, hadoop-6762-2.txt, hadoop-6762-3.txt, hadoop-6762-4.txt, hadoop-6762-6.txt, hadoop-6762-7.txt, hadoop-6762-8.txt, hadoop-6762-9.txt, hadoop-6762.txt
>
>
> If a single process creates two unique fileSystems to the same NN using FileSystem.newInstance(), and one of them issues a close(), the leasechecker thread is interrupted.  This interrupt races with the rpc namenode.renew() and can cause a ClosedByInterruptException.  This closes the underlying channel and the other filesystem, sharing the connection will get errors.

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