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https://issues.apache.org/jira/browse/YARN-6195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15955794#comment-15955794
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Wangda Tan commented on YARN-6195:
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[~jlowe]/[~benson.qiu], Sorry for jumping in late, since we need to squash
multi vals to a single field, I don't think we can find a perfect solution here.
Few options:
#1 Behavior of this patch, usedCapacity = max(label, usedCapacity),
absUsedCapacity = max(label, absUsedCapacity);
#2 abs/usedCapacity = abs/usedCapacity from default partition
#3 usedCapacity = total-used-resource /
sum-of-configured-resource-for-all-partitions,
absUsedCapacity=total-used-resource / sum-of-all-partition-resources.
Considering issue pointed by Naga, I also prefer #2 since it looks simpler and
has best compatibility once we have per-partition-metrics. #3 is also a
reasonable solution to me however it needs more computation and changes
semantics of (abs)usedCapacity.
Thoughts?
> Export UsedCapacity and AbsoluteUsedCapacity to JMX
> ---------------------------------------------------
>
> Key: YARN-6195
> URL: https://issues.apache.org/jira/browse/YARN-6195
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacityscheduler, metrics, yarn
> Affects Versions: 3.0.0-alpha3
> Reporter: Benson Qiu
> Assignee: Benson Qiu
> Attachments: YARN-6195.001.patch, YARN-6195.002.patch,
> YARN-6195.003.patch
>
>
> `usedCapacity` and `absoluteUsedCapacity` are currently not available as JMX.
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