[
https://issues.apache.org/jira/browse/HADOOP-9748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Daryn Sharp updated HADOOP-9748:
--------------------------------
Attachment: HADOOP-9748.patch
Minor change. This helps reduce unnecessary class lock contention between such
common methods as {{UGI#getGroupNames}} and {{UGI.getCurrentUser}}, etc.
> 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: 0.23.0, 2.0.0-alpha, 3.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Critical
> Attachments: HADOOP-9748.patch
>
>
> EnsureInitialized is always sync'ed on the class, when it should only sync if
> it actually has to initialize.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
