[SPARK-21701] Add TCP send/rcv buffer size support for RPC client

• Type: Improvement
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 1.6.0
• Fix Version/s: 2.3.0
• Component/s: Spark Core
• Assignee: Xu Zhang
• Reporter: Xu Zhang
• Created: 11/Aug/17 03:16
• Updated: 24/Aug/17 21:29
• Resolved: 24/Aug/17 21:28

Description

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.