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https://issues.apache.org/jira/browse/SPARK-5124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14335264#comment-14335264
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Reynold Xin commented on SPARK-5124:
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It seems to me the 2nd would be useful in some cases, but not really necessary,
and maybe even belongs in a layer higher than what is proposed here. It might
also be too expensive to track, considering you can have thousands of RPC
messages a second. And it is also subject to memory leaks, if the receiver
doesn't properly discard the message. As you said, none of the Spark code uses
it at the moment.
> Standardize internal RPC interface
> ----------------------------------
>
> Key: SPARK-5124
> URL: https://issues.apache.org/jira/browse/SPARK-5124
> Project: Spark
> Issue Type: Sub-task
> Components: Spark Core
> Reporter: Reynold Xin
> Assignee: Shixiong Zhu
> Attachments: Pluggable RPC - draft 1.pdf, Pluggable RPC - draft 2.pdf
>
>
> In Spark we use Akka as the RPC layer. It would be great if we can
> standardize the internal RPC interface to facilitate testing. This will also
> provide the foundation to try other RPC implementations in the future.
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