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From "ChiaHung Lin (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HAMA-900) Rotation task scheduler
Date Tue, 22 Apr 2014 16:20:15 GMT

    [ https://issues.apache.org/jira/browse/HAMA-900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13976936#comment-13976936
] 

ChiaHung Lin edited comment on HAMA-900 at 4/22/14 4:18 PM:
------------------------------------------------------------

Do you mean spread tasks as many as possible to all GroomServers?

For example, a job having 5 tasks will have tasks spread to 5 GroomServers (each GroomServer
ideally receive a task for computation)? 

If that's the case, the current refactoring code might be able to offer similar mechanism.
In that GroomServer will ask for task assign, so ideally tasks should be able to spread to
GroomServer as many as possible; in real scenario some (fast) GroomServers may be assigned
several tasks that belongs to the same job. 



was (Author: chl501):
Do you mean spread tasks as many as possible to all GroomServers?

For example, a job having 5 tasks will have tasks spread to 5 GroomServers (each GroomServer
ideally receive a task for computation)? 

If that's the case, the current refactoring code might be able offer similar mechanism. In
that GroomServer will ask for task assign, so ideally tasks should be able to spread to GroomServer
as many as possible; in real scenario some (fast) GroomServers may be assigned several tasks
that belongs to the same job. 


> Rotation task scheduler
> -----------------------
>
>                 Key: HAMA-900
>                 URL: https://issues.apache.org/jira/browse/HAMA-900
>             Project: Hama
>          Issue Type: New Feature
>          Components: bsp core
>            Reporter: Edward J. Yoon
>             Fix For: 0.7.0
>
>
> To spread tasks widely, I need a FIFO job scheduler that assign tasks one at a time in
rotation of groom servers (a method of dealing cards).



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