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Posted to yarn-issues@hadoop.apache.org by "Yufei Gu (JIRA)" <ji...@apache.org> on 2016/06/16 16:46:05 UTC
[jira] [Comment Edited] (YARN-5077) Fix FSLeafQueue#getFairShare()
for queues with weight 0.0
[ https://issues.apache.org/jira/browse/YARN-5077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15328695#comment-15328695 ]
Yufei Gu edited comment on YARN-5077 at 6/16/16 4:45 PM:
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[~kasha], Thanks for the review.
I will discuss with you offline with 1 and 2. I will create a new JIRA for 3. YARN-5264 is the JIRA for the 3.
was (Author: yufeigu):
[~kasha], Thanks for the review.
I will discuss with you offline with 1 and 2. I will create a new JIRA for 3.
> Fix FSLeafQueue#getFairShare() for queues with weight 0.0
> ---------------------------------------------------------
>
> Key: YARN-5077
> URL: https://issues.apache.org/jira/browse/YARN-5077
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Yufei Gu
> Assignee: Yufei Gu
> Attachments: YARN-5077.001.patch, YARN-5077.002.patch, YARN-5077.003.patch, YARN-5077.004.patch, YARN-5077.005.patch, YARN-5077.006.patch, YARN-5077.007.patch
>
>
> 1) When a queue's weight is set to 0.0, FSLeafQueue#getFairShare() returns <memory:0, vCores:0>
> 2) When a queue's weight is nonzero, FSLeafQueue#getFairShare() returns <memory:16384, vCores:8>
> In case 1), that means no container ever gets allocated for an AM because from the viewpoint of the RM, there is never any headroom to allocate a container on that queue.
> For example, we have a pool with the following weights:
> - root.dev 0.0
> - root.product 1.0
> The root.dev is a best effort pool and should only get resources if root.product is not running. In our tests, with no jobs running under root.product, jobs started in root.dev queue stay stuck in ACCEPT phase and never start.
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