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From "Sean Po (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-5211) Supporting "priorities" in the ReservationSystem
Date Thu, 14 Jul 2016 23:45:20 GMT

     [ https://issues.apache.org/jira/browse/YARN-5211?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sean Po updated YARN-5211:
--------------------------
    Description: 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.   (was: 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. )

> 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
>
> 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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