Jason Lowe created YARN-6917:
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Summary: Queue path is recomputed from scratch on every allocation
Key: YARN-6917
URL: https://issues.apache.org/jira/browse/YARN-6917
Project: Hadoop YARN
Issue Type: Improvement
Components: capacityscheduler
Affects Versions: 2.8.1
Reporter: Jason Lowe
Priority: Minor
As part of the discussion in YARN-6901 I noticed that we are recomputing a
queue's path for every allocation. Currently getting the queue's path involves
calling getQueuePath on the parent then building onto that string with the
basename of the queue. In turn the parent's getQueuePath method does the same,
so we end up spending time recomputing a string that will never change until a
reconfiguration.
Ideally the queue path should be computed once during queue initialization
rather than on-demand.
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