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https://issues.apache.org/jira/browse/YARN-5220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Konstantinos Karanasos updated YARN-5220:
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Description:
In YARN-2882, we introduced the notion of OPPORTUNISTIC containers, along with
the existing GUARANTEED containers of YARN.
OPPORTUNISTIC containers are allowed to be queued at the NMs (YARN-2883), and
are executed as long as there are available resources at the NM. Moreover, they
are of lower priority than the GUARANTEED containers, that is, they can be
preempted for a GUARANTEED container to start its execution.
In YARN-2877, we enabled distributed scheduling in YARN, and OPPORTUNISTIC
containers are scheduled exclusively by distributed schedulers.
In this JIRA, we are proposing to extend the centralized YARN RM in order to
enable the scheduling of OPPORTUNISTIC containers in a centralized fashion.
> Scheduling of OPPORTUNISTIC containers through YARN RM
> ------------------------------------------------------
>
> Key: YARN-5220
> URL: https://issues.apache.org/jira/browse/YARN-5220
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: resourcemanager
> Reporter: Konstantinos Karanasos
> Assignee: Konstantinos Karanasos
>
> In YARN-2882, we introduced the notion of OPPORTUNISTIC containers, along
> with the existing GUARANTEED containers of YARN.
> OPPORTUNISTIC containers are allowed to be queued at the NMs (YARN-2883), and
> are executed as long as there are available resources at the NM. Moreover,
> they are of lower priority than the GUARANTEED containers, that is, they can
> be preempted for a GUARANTEED container to start its execution.
> In YARN-2877, we enabled distributed scheduling in YARN, and OPPORTUNISTIC
> containers are scheduled exclusively by distributed schedulers.
> In this JIRA, we are proposing to extend the centralized YARN RM in order to
> enable the scheduling of OPPORTUNISTIC containers in a centralized fashion.
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