Daryn Sharp created HADOOP-9748:
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Summary: Reduce blocking on UGI.ensureInitialized
Key: HADOOP-9748
URL: https://issues.apache.org/jira/browse/HADOOP-9748
Project: Hadoop Common
Issue Type: Sub-task
Components: security
Affects Versions: 2.0.0-alpha, 0.23.0, 3.0.0
Reporter: Daryn Sharp
Assignee: Daryn Sharp
Priority: Critical
EnsureInitialized is always sync'ed on the class, when it should only sync if
it actually has to initialize.
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