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https://issues.apache.org/jira/browse/YARN-5211?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Po updated YARN-5211:
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Attachment: Adding priority to reservation system.pdf
Attaching a design doc with our proposal to enhance ReservationSytem with
support for priority in reservations.
> Supporting "priorities" in the ReservationSystem
> ------------------------------------------------
>
> Key: YARN-5211
> URL: https://issues.apache.org/jira/browse/YARN-5211
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacityscheduler, fairscheduler, resourcemanager
> Reporter: Carlo Curino
> Assignee: Sean Po
> Attachments: Adding priority to reservation system.pdf
>
>
> YARN-1051 introduced a ReservationSytem that enables the YARN RM to handle
> time explicitly, i.e. users can now "reserve" capacity ahead of time which is
> predictably allocated to them. Currently, the ReservationSystem currently has
> an implicit FIFO priority. This JIRA tracks effort to generalize this to
> arbitrary priority. This is non-trivial as the greedy nature of our
> ReservationAgents might need to be revisited if not enough space if found for
> late-arriving but higher priority reservations.
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