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https://issues.apache.org/jira/browse/HADOOP-10278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13890260#comment-13890260
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Benoy Antony commented on HADOOP-10278:
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You can get a small performance gain using _volatile_ instead of _AtomicRef_
since this case does not require the guarantee of AtomicRef's compareAndSwap.
> Refactor to make CallQueue pluggable
> ------------------------------------
>
> Key: HADOOP-10278
> URL: https://issues.apache.org/jira/browse/HADOOP-10278
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: ipc
> Reporter: Chris Li
> Attachments: HADOOP-10278-atomicref.patch, HADOOP-10278.patch,
> subtask1.3.patch, subtask1.4.patch, subtask1.5.patch
>
>
> * Refactor CallQueue into an interface, base, and default implementation that
> matches today's behavior
> * Make the call queue impl configurable, keyed on port so that we minimize
> coupling
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