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https://issues.apache.org/jira/browse/YARN-6963?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arun Suresh updated YARN-6963:
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Issue Type: Improvement (was: Bug)
> Prevent other containers from staring when a container is re-initializing
> -------------------------------------------------------------------------
>
> Key: YARN-6963
> URL: https://issues.apache.org/jira/browse/YARN-6963
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Arun Suresh
> Assignee: Arun Suresh
>
> Further to discussions in YARN-6920.
> Container re-initialization will lead to momentary relinquishing of NM
> resources when the container is brought down followed by re-claiming of the
> same resources when it is re-launched. If there are Opportunistic containers
> in the queue, it can lead to un-necessary churn if one of those opportunistic
> containers are started and immediately killed.
> This JIRA tracks changes required to prevent the above by ensuring the
> resources for a container are 'locked' for the during of the container
> lifetime - including the time it takes for a re-initialization.
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