Madhan Neethiraj created HDFS-17478:
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Summary: FSPermissionChecker to avoid obtaining a new
AccessControlEnforcer instance before each authz call
Key: HDFS-17478
URL: https://issues.apache.org/jira/browse/HDFS-17478
Project: Hadoop HDFS
Issue Type: Improvement
Components: namanode
Reporter: Madhan Neethiraj
An instance of AccessControlEnforcer is obtained from the registered
INodeAttributeProvider before every call made to authorizer. This can be
avoided by initializing the AccessControlEnforcer instance during construction
of FsPermissionChecker and using it in every subsequent call to the authorizer.
This will eliminate the unnecessary overhead in highly performance sensitive
authz code path.
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