[YARN-6462] Add yarn command to list all queues - ASF JIRA

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Details

Type: Improvement
Status: Patch Available
Priority: Major
Resolution: Unresolved
Affects Version/s: None
Fix Version/s: None
Component/s: client
Labels:
None

Description

we need a yarn command to list all leaf queues.

especially in large scale cluster ,there are a large amount of queues in tree-format for various apps , we actually need a list-all-leaf-queues interface to get queues infomation immediately ,other than search in fair scheduler.xml or in yarn-scheduler web layer by layer.sometimes we should also vertify a new queue is successfully added in scheduer, instead of fail for some format error or other wise.