Junping Du commented on YARN-2657:

Hi, can we move this out of 2.6.3? Thanks!

> MiniYARNCluster to (optionally) add MicroZookeeper service
> ----------------------------------------------------------
>                 Key: YARN-2657
>                 URL: https://issues.apache.org/jira/browse/YARN-2657
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: test
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>         Attachments: YARN-2567-001.patch, YARN-2657-002.patch
> This is needed for testing things like YARN-2646: add an option for the 
> {{MiniYarnCluster}} to start a {{MicroZookeeperService}}.
> This is just another YARN service to create and track the lifecycle. The 
> {{MicroZookeeperService}} publishes its binding information for direct takeup 
> by the registry services...this can address in-VM race conditions.
> The default setting for this service is "off"

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