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Posted to yarn-issues@hadoop.apache.org by "Arun Suresh (JIRA)" <ji...@apache.org> on 2018/01/20 01:35:00 UTC
[jira] [Comment Edited] (YARN-7774) Miscellaneous fixes to the
PlacementProcessor
[ https://issues.apache.org/jira/browse/YARN-7774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16333097#comment-16333097 ]
Arun Suresh edited comment on YARN-7774 at 1/20/18 1:34 AM:
------------------------------------------------------------
The test case error is unrelated. [~cheersyang] , [~kkaranasos] , can we move forward with the latest patch? Happy to file subsequent JIRAs for anything specific.
was (Author: asuresh):
The test case error is unrelated. [~Weiwei Yang] , [~kkaranasos] , can we move forward with the latest patch? Happy to file subsequent JIRAs for anything specific.
> Miscellaneous fixes to the PlacementProcessor
> ---------------------------------------------
>
> Key: YARN-7774
> URL: https://issues.apache.org/jira/browse/YARN-7774
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Arun Suresh
> Assignee: Arun Suresh
> Priority: Blocker
> Attachments: YARN-7774-YARN-6592.001.patch, YARN-7774-YARN-6592.002.patch, YARN-7774-YARN-6592.003.patch, YARN-7774-YARN-6592.004.patch, YARN-7774-YARN-6592.005.patch
>
>
> JIRA to track the following minor changes:
> * Scheduler must normalize requests that are made using the {{attemptAllocationOnNode}} method.
> * Currently, the placement algorithm resets the node iterator for each request. The Placement Algorithm should either shuffle the node iterator OR use a circular iterator - to ensure a) more nodes are looked at and b) bias against placing too many containers on the same node
> * Add a placement retry loop for rejected requests - since there are cases especially, when Constraints will be satisfied after a subsequent request has been placed.
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