[jira] [Commented] (MESOS-938) Support task replacement and resizing

["Qian Zhang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MESOS-938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14942534#comment-14942534 ] 

Qian Zhang commented on MESOS-938:
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Discussed with [~nnielsen], task replacement is not our priority anymore since we already have the dynamic reservation feature which can be used to achieve task replacement. And task resizing is our priority now, I have drafted a design doc for it (see the link below), and will work on it in MESOS-1279.
https://docs.google.com/document/d/15rVmS2AXLzTDSEugAVDxWuHFUentp82KhL2yzxBCsi8/edit?usp=sharing

> Support task replacement and resizing
> -------------------------------------
>
>                 Key: MESOS-938
>                 URL: https://issues.apache.org/jira/browse/MESOS-938
>             Project: Mesos
>          Issue Type: Improvement
>          Components: c++ api, master, slave
>            Reporter: Niklas Quarfot Nielsen
>            Assignee: Qian Zhang
>         Attachments: resource-flow.png
>
>
> Task replacement and scaling primitives could allow easier up and down-scaling by reusing resources from an old task either partially (leaving resource delta available), fully or augmented (backed by additional offers) for launching a new task. Further, recovery logic can be applied which restarts the old task in case of new task failure.



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