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https://issues.apache.org/jira/browse/MAPREDUCE-3995?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran updated MAPREDUCE-3995:
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Status: Patch Available (was: Open)
> 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
> Attachments: 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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