[jira] [Commented] (REEF-500) Simple duplicate Vortex Tasklet launch

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

    [ https://issues.apache.org/jira/browse/REEF-500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14640751#comment-14640751 ] 

Zhengping Qian commented on REEF-500:
-------------------------------------

FYI, a related work on the scheduling policy (with duplicate execution; for volunteer computing): http://groups.csail.mit.edu/cag/bayanihan/papers/fgcs/html/node10.html
It looks to me a simple/good one to try.

> Simple duplicate Vortex Tasklet launch
> --------------------------------------
>
>                 Key: REEF-500
>                 URL: https://issues.apache.org/jira/browse/REEF-500
>             Project: REEF
>          Issue Type: Sub-task
>          Components: Vortex
>            Reporter: John Yang
>            Assignee: John Yang
>
> To proactively cope with frequent resource preemptions, we can duplicate launch Tasklets. As a first step to support this, we work on the following things:
> * Add metadata(e.g. replica info) to Tasklet
> * Keep track of duplicate Tasklets in VortexMaster
> * Introduce Tasklet priority, giving lower priority to duplicated ones compared to the original ones



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