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https://issues.apache.org/jira/browse/YARN-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16353484#comment-16353484
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wangwj commented on YARN-7859:
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Hi,[~yufeigu],thank you for your reply.:)
1、This phenomenon often happens in my cluster because of the large amount
of jobs...I don't think this is a corner cases or particular issue..For
example,one queue includes off-line batch processing job and real time stream
processing job..Although this can be solved by disassembling the queue, but it
restricts the flexibility of the queue.
2、If we add this new property to queue. Few code to use this property. This
is different from maxAMShare.
3、If we take your suggestion to setting minShare to a smaller value for
long-running job queue.Others queue will must be affected and one or more
queues probably can't be shceduled for a long time.
> New feature: add queue scheduling deadLine in fairScheduler.
> ------------------------------------------------------------
>
> Key: YARN-7859
> URL: https://issues.apache.org/jira/browse/YARN-7859
> Project: Hadoop YARN
> Issue Type: New Feature
> Components: fairscheduler
> Affects Versions: 3.0.0
> Reporter: wangwj
> Assignee: wangwj
> Priority: Major
> Labels: fairscheduler, features, patch
> Fix For: 3.0.0
>
> Attachments: YARN-7859-v1.patch, log, screenshot-1.png,
> screenshot-3.png
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> As everyone knows.In FairScheduler the phenomenon of queue scheduling
> starvation often occurs when the number of cluster jobs is large.The App in
> one or more queue are pending.So I have thought a way to solve this
> problem.Add queue scheduling deadLine in fairScheduler.When a queue is not
> scheduled for FairScheduler within a specified time.We mandatory scheduler it!
> On the basis of the above, I propose this issue...
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