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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2870) Datanode.shutdown() and Namenode.stop() should close all rpc connections
Date Fri, 07 Mar 2008 19:23:46 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12576343#action_12576343
] 

Hadoop QA commented on HADOOP-2870:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
http://issues.apache.org/jira/secure/attachment/12377300/closeConnection3.patch
against trunk revision 619744.

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

    tests included +1.  The patch appears to include 12 new or modified tests.

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

    javac +1.  The applied patch does not generate any new javac compiler warnings.

    release audit +1.  The applied patch does not generate any new release audit warnings.

    findbugs -1.  The patch appears to introduce 1 new Findbugs warnings.

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

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

Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/1911/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/1911/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/1911/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/1911/console

This message is automatically generated.

> Datanode.shutdown() and Namenode.stop() should close all rpc connections
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-2870
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2870
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: ipc
>    Affects Versions: 0.16.0
>            Reporter: Hairong Kuang
>            Assignee: Hairong Kuang
>             Fix For: 0.17.0
>
>         Attachments: closeConnection.patch, closeConnection1.patch, closeConnection2.patch,
closeConnection3.patch
>
>
> Currently this two cleanup methods do not close all existing rpc connections. If a mini
dfs cluster gets shutdown and then restarted as we do in TestFileCreation, RPCs in second
mini cluster reuse the unclosed connections opened in the first run but there is no server
running to serve the request. So the client get stuck waiting for the response forever if
client side timeout gets removed as suggested by hadoop-2811.

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