Steve Loughran updated YARN-2571:
    Attachment: YARN-2571-002.patch

patch atop the (now applied) YARN-2562 changes.

Most of this patch is simply extending the {{RMContextImpl}} constructors in 
tests; {{RMRegistryService}} and {{RMRegistryOperationsService}} the new 

The tests for this code are in the Distributed Shell patch: if we want an 
integrated code+test patch, YARN-2646 should be included here

> RM to support YARN registry 
> ----------------------------
>                 Key: YARN-2571
>                 URL: https://issues.apache.org/jira/browse/YARN-2571
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>         Attachments: YARN-2571-001.patch, YARN-2571-002.patch
> The RM needs to (optionally) integrate with the YARN registry:
> # startup: create the /services and /users paths with system ACLs (yarn, hdfs 
> principals)
> # app-launch: create the user directory /users/$username with the relevant 
> permissions (CRD) for them to create subnodes.
> # attempt, container, app completion: remove service records with the 
> matching persistence and ID

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