zhihai xu commented on YARN-433:

Thanks [~xgong] for the contribution! Thanks [~adhoot] for additional review!

> When RM is catching up with node updates then it should not expire acquired 
> containers
> --------------------------------------------------------------------------------------
>                 Key: YARN-433
>                 URL: https://issues.apache.org/jira/browse/YARN-433
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Bikas Saha
>            Assignee: Xuan Gong
>             Fix For: 2.8.0
>         Attachments: YARN-433.1.patch, YARN-433.2.patch, YARN-433.3.patch, 
> YARN-433.4.patch
> RM expires containers that are not launched within some time of being 
> allocated. The default is 10mins. When an RM is not keeping up with node 
> updates then it may not be aware of new launched containers. If the expire 
> thread fires for such containers then the RM can expire them even though they 
> may have launched.

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