Jun Gong commented on YARN-3161:

Thanks Jian. Closing it now.

> Containers' information are lost in some cases when RM restart
> --------------------------------------------------------------
>                 Key: YARN-3161
>                 URL: https://issues.apache.org/jira/browse/YARN-3161
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Jun Gong
> When RM restart, containers' information will be lost for the following 
> scenarios:
> 1. NM restarts before it sends containers' information to the new active RM. 
> 2. NM stops and it could not send containers' information to the new active 
> RM.
> Without those containers' information, corresponding AM will never get their 
> status through RM, and AM would just wait them for ever.

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