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https://issues.apache.org/jira/browse/YARN-10043?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17017328#comment-17017328
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Wangda Tan commented on YARN-10043:
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Thanks [~maniraj...@gmail.com] for posting thoughts on this.
In my opinion, the importance of mentioned behaviors is, 3 > 4 > 1; 3 is
already supported.
#4 is important, we should add it.
#1 to me only impact performance not correctness (app without demand won't
allocate anything), but comparing one more field could also impact performance.
So I would say it is minor.
And:
To me #5 is not a necessary behavior, why an app start with "a" will be more
important than an app start with "z". Since we have compared 3/4, I felt it is
not worth to add.
#2 is not necessary to me, two reasons: a. it only related to queues, b. for
queues, CS already compares relative usage. I don't really think add one more
resource comparison is worth here.
I think YARN-10049 is also the same.
+ [~pbacsko] since Peter is asking the similar quesitons.
> FairOrderingPolicy Improvements
> -------------------------------
>
> Key: YARN-10043
> URL: https://issues.apache.org/jira/browse/YARN-10043
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Manikandan R
> Assignee: Manikandan R
> Priority: Major
>
> FairOrderingPolicy can be improved by using some of the approaches (only
> relevant) implemented in FairSharePolicy of FS. This improvement has
> significance in FS to CS migration context.
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