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From "Hadoop QA (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3995) Add support for static service lifecycle listeners .
Date Thu, 15 Mar 2012 13:03:38 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13230143#comment-13230143
] 

Hadoop QA commented on MAPREDUCE-3995:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12518453/MAPREDUCE-3995.patch
  against trunk revision .

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

    +1 tests included.  The patch appears to include 4 new or modified tests.

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

    -1 javac.  The applied patch generated 506 javac compiler warnings (more than the trunk's
current 505 warnings).

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

    +1 findbugs.  The patch does not introduce any 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.mapred.TestWritableJobConf

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

Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2056//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2056//console

This message is automatically generated.
                
> Add support for  static service lifecycle listeners .
> -----------------------------------------------------
>
>                 Key: MAPREDUCE-3995
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3995
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: mrv2
>    Affects Versions: 0.23.1, 0.24.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Minor
>              Labels: management
>         Attachments: MAPREDUCE-3995.patch, MAPREDUCE-3995.patch, MAPREDUCE-3995.patch,
MAPREDUCE-3995.patch, MAPREDUCE-3995.patch
>
>
> Add support to {{AbstractService}} that allow callers to register listeners for all instances.
The existing listener interface could be used. This allows management tools to hook into the
events.
> The static listeners would be invoked for all state changes except creation (base class
shouldn't be handing out references to itself at this point).
> These static events could all be async, pushed through a shared {{ConcurrentLinkedQueue}};
failures logged at warn and the rest of the listeners invoked.

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