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https://issues.apache.org/jira/browse/HADOOP-7901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13166363#comment-13166363
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Todd Lipcon commented on HADOOP-7901:
-------------------------------------
Where are you seeing contention on the Configuration object? The downside of
rwlock is (a) increased memory usage, and (b) higher constant overhead, in my
experience. Not that I'm against it, just would like to know more about the
motivation.
> Have Configuration use Read/Write Locks
> ---------------------------------------
>
> Key: HADOOP-7901
> URL: https://issues.apache.org/jira/browse/HADOOP-7901
> Project: Hadoop Common
> Issue Type: Improvement
> Components: conf
> Affects Versions: 0.23.1
> Reporter: Robert Joseph Evans
> Assignee: Robert Joseph Evans
>
> We can potentially improve performance by moving to read/write locks for
> configuration instead of the current synchronization.
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