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https://issues.apache.org/jira/browse/YARN-5889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15812251#comment-15812251
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Eric Payne commented on YARN-5889:
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Thanks [~leftnoteasy] for your review and comments.
bq. If everybody agrees with approach in my comment
I agree. I think [~jlowe] summed it up well when he said your "... proposal ...
preserves the FIFO/priority behavior at least up through usage < MULP and then
becomes fair once a user is beyond MULP."
{quote}
And in addition, we can add a UsersManager to LQ
...
And for last, we can look at logics for #active-users per partition, now we
have an identical #active-users for all partition
{quote}
Let's please do these as separate JIRAs. We are extremely anxious to move this
JIRA forward since it is blocking YARN-2113 (user limit-based intra-queue
preemption).
> Improve user-limit calculation in capacity scheduler
> ----------------------------------------------------
>
> Key: YARN-5889
> URL: https://issues.apache.org/jira/browse/YARN-5889
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacity scheduler
> Reporter: Sunil G
> Assignee: Sunil G
> Attachments: YARN-5889.0001.patch,
> YARN-5889.0001.suggested.patchnotes, YARN-5889.v0.patch, YARN-5889.v1.patch,
> YARN-5889.v2.patch
>
>
> Currently user-limit is computed during every heartbeat allocation cycle with
> a write lock. To improve performance, this tickets is focussing on moving
> user-limit calculation out of heartbeat allocation flow.
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