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From "Carlo Curino (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5324) Stateless router policies implementation
Date Sat, 16 Jul 2016 19:48:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15380912#comment-15380912
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Carlo Curino commented on YARN-5324:
------------------------------------

This patch provides 3 simple implementation of {{RouterFederationPolicy}}:
 # A uniform random choice among active subclusters
 # A weighted random choice among active subclusters, where the weights in the policy determine
likelihood of picking a cluster (and =0 means actively excluding a subcluster)
 # A ordered priority among active subclusters, where the weights in the policy determine
the "cost" of picking a cluster. The policy always picks the subcluster with the lowest weight.


> Stateless router policies implementation
> ----------------------------------------
>
>                 Key: YARN-5324
>                 URL: https://issues.apache.org/jira/browse/YARN-5324
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
>         Attachments: YARN-5324.01.patch
>
>
> These are policies at the Router that do not require maintaing state across choices (e.g.,
weighted random).



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