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Posted to yarn-issues@hadoop.apache.org by "Wangda Tan (JIRA)" <ji...@apache.org> on 2014/12/05 02:21:13 UTC
[jira] [Created] (YARN-2925) Internal fields in LeafQueue access
should be protected when accessed from FiCaSchedulerApp to calculate
Headroom
Wangda Tan created YARN-2925:
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Summary: Internal fields in LeafQueue access should be protected when accessed from FiCaSchedulerApp to calculate Headroom
Key: YARN-2925
URL: https://issues.apache.org/jira/browse/YARN-2925
Project: Hadoop YARN
Issue Type: Bug
Components: capacityscheduler
Reporter: Wangda Tan
Assignee: Wangda Tan
Priority: Critical
Upon YARN-2644, FiCaScheduler will calculation up-to-date headroom before sending back Allocation response to AM.
Headroom calculation is happened in LeafQueue side, uses fields like used resource, etc. But it is not protected by any lock of LeafQueue, so it might be corrupted is someone else is editing it.
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