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https://issues.apache.org/jira/browse/SPARK-19365?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shixiong Zhu resolved SPARK-19365.
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Resolution: Fixed
Fix Version/s: 2.2.0
> Optimize RequestMessage serialization
> -------------------------------------
>
> Key: SPARK-19365
> URL: https://issues.apache.org/jira/browse/SPARK-19365
> Project: Spark
> Issue Type: Improvement
> Reporter: Shixiong Zhu
> Assignee: Shixiong Zhu
> Fix For: 2.2.0
>
>
> Right now Netty PRC serializes RequestMessage using Java serialization, and
> the size of a single message (e.g., RequestMessage(..., "hello!")`) is about
> 1kb.
> This PR optimizes it by serializing RequestMessage manually, and reduces the
> above message size to 100+ bytes.
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