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https://issues.apache.org/jira/browse/SPARK-21701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16123004#comment-16123004
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Sean Owen commented on SPARK-21701:
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I think you'd have to show evidence that it's worth the extra buffer size and
how it impacts performance
> Add TCP send/rcv buffer size support for RPC client
> ---------------------------------------------------
>
> Key: SPARK-21701
> URL: https://issues.apache.org/jira/browse/SPARK-21701
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 1.6.0
> Reporter: neoremind
> Priority: Trivial
>
> For TransportClientFactory class, there are no params derived from SparkConf
> to set ChannelOption.SO_RCVBUF and ChannelOption.SO_SNDBUF for netty.
> Increasing the receive buffer size can increase the I/O performance for
> high-volume transport.
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