Jason Lowe commented on YARN-3208:

Ideally this could be done over the existing AM-RM connection if the IPC layer 
were extend to support it.  Otherwise we would need one side to shut down the 
connection and force the AM to reconnect to the RM and re-authenticate.

> RM-AM connection should be reauthorized when token changes
> ----------------------------------------------------------
>                 Key: YARN-3208
>                 URL: https://issues.apache.org/jira/browse/YARN-3208
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Jason Lowe
> We should re-authenticate the AM-RM connection when the RM rolls a new secret 
> for AM tokens and successfully hands a new token to the AM.

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