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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-3784) Indicate preemption timout along with the list of containers to AM (preemption message)
Date Thu, 27 Oct 2016 19:03:59 GMT

     [ https://issues.apache.org/jira/browse/YARN-3784?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Wangda Tan updated YARN-3784:
-----------------------------
    Component/s:     (was: resourcemanager)
                 scheduler preemption

> Indicate preemption timout along with the list of containers to AM (preemption message)
> ---------------------------------------------------------------------------------------
>
>                 Key: YARN-3784
>                 URL: https://issues.apache.org/jira/browse/YARN-3784
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: scheduler preemption
>            Reporter: Sunil G
>            Assignee: Sunil G
>              Labels: oct16-hard
>         Attachments: 0001-YARN-3784.patch, 0002-YARN-3784.patch, 0003-YARN-3784.patch,
0004-YARN-3784.patch
>
>
> Currently during preemption, AM is notified with a list of containers which are marked
for preemption. Introducing a timeout duration also along with this container list so that
AM can know how much time it will get to do a graceful shutdown to its containers (assuming
one of preemption policy is loaded in AM).
> This will help in decommissioning NM scenarios, where NM will be decommissioned after
a timeout (also killing containers on it). This timeout will be helpful to indicate AM that
those containers can be killed by RM forcefully after the timeout.



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