[jira] [Commented] (YARN-740) Document the YARN service lifecycle & development

["Steve Loughran (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13671443#comment-13671443 ] 

Steve Loughran commented on YARN-740:
-------------------------------------

* how to subclass AbstractService
* how to overwrite configurations during {{init()}}
* why it is so critical to make {{stop()}} robust -and why you can't rely on it being called. 
* how to use the {{CompositeService}} to automatically share the lifecycle -as well as sharing a configuration
* invoking services in tests -and how to teardown cleanly
                
> Document the YARN service lifecycle & development
> -------------------------------------------------
>
>                 Key: YARN-740
>                 URL: https://issues.apache.org/jira/browse/YARN-740
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: documentation
>    Affects Versions: 2.0.4-alpha
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> Once the API is stable, document how to write YARN services.

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