Kihwal Lee created YARN-742:
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Summary: Log aggregation causes a lot of redundant setPermission
calls
Key: YARN-742
URL: https://issues.apache.org/jira/browse/YARN-742
Project: Hadoop YARN
Issue Type: Bug
Components: nodemanager
Affects Versions: 2.0.4-alpha, 0.23.7
Reporter: Kihwal Lee
In one of our clusters, namenode RPC is spending 45% of its time on serving
setPermission calls. Further investigation has revealed that most calls are
redundantly made on /mapred/logs/<user>/logs. Also mkdirs calls are made before
this.
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