Akira AJISAKA updated YARN-2807:
    Component/s: documentation

> Option "--forceactive" not works as described in usage of "yarn rmadmin 
> -transitionToActive"
> --------------------------------------------------------------------------------------------
>                 Key: YARN-2807
>                 URL: https://issues.apache.org/jira/browse/YARN-2807
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: documentation, resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Masatake Iwasaki
>            Priority: Minor
>         Attachments: YARN-2807.1.patch, YARN-2807.2.patch
> Currently the help message of "yarn rmadmin -transitionToActive" is:
> {code}
> transitionToActive: incorrect number of arguments
> Usage: HAAdmin [-transitionToActive <serviceId> [--forceactive]]
> {code}
> But the --forceactive not works as expected. When transition RM state with 
> --forceactive:
> {code}
> yarn rmadmin -transitionToActive rm2 --forceactive
> Automatic failover is enabled for 
> org.apache.hadoop.yarn.client.RMHAServiceTarget@64c9f31e
> Refusing to manually manage HA state, since it may cause
> a split-brain scenario or other incorrect state.
> If you are very sure you know what you are doing, please
> specify the forcemanual flag.
> {code}
> As shown above, we still cannot transitionToActive when automatic failover is 
> enabled with --forceactive.
> The option can work is: {{--forcemanual}}, there's no place in usage 
> describes this option. I think we should fix this

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