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https://issues.apache.org/jira/browse/YARN-896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13698505#comment-13698505
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Robert Joseph Evans commented on YARN-896:
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Another issue that has been discussed in the past is the impact that long lived
processes can have on resource scheduling. It is possible for a long lived
process to grab lots of resources and then never release them even though it is
using more resources than it would be allowed to have when the cluster is full.
Recent preemption changes should be able to prevent this from happening
between different queues/pools, but we may need to think if we need more
control about this within a queue.
> Roll up for long lived YARN
> ---------------------------
>
> Key: YARN-896
> URL: https://issues.apache.org/jira/browse/YARN-896
> Project: Hadoop YARN
> Issue Type: New Feature
> Reporter: Robert Joseph Evans
>
> YARN is intended to be general purpose, but it is missing some features to be
> able to truly support long lived applications and long lived containers.
> This ticket is intended to
> # discuss what is needed to support long lived processes
> # track the resulting JIRA.
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