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https://issues.apache.org/jira/browse/YARN-2393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14106990#comment-14106990
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Karthik Kambatla commented on YARN-2393:
One of the reasons we (Sandy and I) wanted to make the fairshare being used for
scheduling instantaneous was to address the case where the maxAMResource
becomes so small when there are multiple queues that we can't run any
applications at all. I think it is better to leave it as is. In case any one
runs into (in testing) issues with maxAMResource, we can consider preempting
AMs as an alternative.
FairScheduler: Implement steady fair share
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Key: YARN-2393
URL: https://issues.apache.org/jira/browse/YARN-2393
Project: Hadoop YARN
Issue Type: Improvement
Components: fairscheduler
Reporter: Ashwin Shankar
Assignee: Wei Yan
Attachments: YARN-2393-1.patch, YARN-2393-2.patch, YARN-2393-3.patch,
yarn-2393-4.patch
Static fair share is a fair share allocation considering all(active/inactive)
queues.It would be shown on the UI for better predictability of finish time
of applications.
We would compute static fair share only when needed, like on queue creation,
node added/removed. Please see YARN-2026 for discussions on this.
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