Rohith commented on YARN-3194:

And Not related specific to this jira, I have one doubt on this method 
{{ResourceTrackerService#handleNMContainerStatus}} is sending 
container_finished event only to master container. Why other containers are not 
considered? I think it is made intentionally for optimization so if 
container_finished event would release other containers resources. Is this is 
the reason?

> After NM restart,completed containers are not released which are sent during 
> NM registration
> --------------------------------------------------------------------------------------------
>                 Key: YARN-3194
>                 URL: https://issues.apache.org/jira/browse/YARN-3194
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>         Environment: NM restart is enabled
>            Reporter: Rohith
>            Assignee: Rohith
> On NM restart ,NM sends all the outstanding NMContainerStatus to RM. But RM 
> process only ContainerState.RUNNING. If container is completed when NM was 
> down then those containers resources wont be release which result in 
> applications to hang.

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