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https://issues.apache.org/jira/browse/YARN-6828?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Young Chen reassigned YARN-6828:
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Assignee: (was: Young Chen)
> [Umbrella] Container preemption using OPPORTUNISTIC containers
> --------------------------------------------------------------
>
> Key: YARN-6828
> URL: https://issues.apache.org/jira/browse/YARN-6828
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Arun Suresh
> Priority: Major
>
> This is based on discussions with [~kasha] and [~kkaranasos].
> Currently, the YARN schedulers selects containers for preemption only in
> response to a starved queue / app's request. We propose to allow the
> Schedulers to mark containers that are allocated over queue
> capacity/fair-share as Opportunistic containers.
> This JIRA proposes to allow Schedulers to:
> # Allocate all containers over the configured queue capacity/weight as
> OPPORTUNISTIC.
> # Auto-promote running OPPORTUNISTIC containers of apps as and when their
> GUARANTEED containers complete.
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