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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Moved] (YARN-118) Add ServiceOperations class to aid working with Services
Date Sun, 23 Sep 2012 23:58:07 GMT

     [ https://issues.apache.org/jira/browse/YARN-118?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinod Kumar Vavilapalli moved MAPREDUCE-3970 to YARN-118:
---------------------------------------------------------

          Component/s:     (was: mrv2)
        Fix Version/s:     (was: 2.0.0-alpha)
    Affects Version/s:     (was: 0.23.1)
                           (was: 0.24.0)
                  Key: YARN-118  (was: MAPREDUCE-3970)
              Project: Hadoop YARN  (was: Hadoop Map/Reduce)
    
> Add ServiceOperations class to aid working with Services
> --------------------------------------------------------
>
>                 Key: YARN-118
>                 URL: https://issues.apache.org/jira/browse/YARN-118
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>         Attachments: MAPREDUCE-3970.patch, MAPREDUCE-3970.patch
>
>
> Add Helper methods to move things through lifecycles. init->start is common, stop-if-service!=null
another. Some static methods can execute these, and even call stop() if init() raises an exception.
These could go into a class ServiceOps in the same package. These can be used by those services
that wrap other services, and help manage more robust shutdowns.

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