peshopetrov edited a comment on issue #20512: [SPARK-23182][CORE] Allow 
enabling TCP keep alive on the master RPC connections.
URL: https://github.com/apache/spark/pull/20512#issuecomment-452470912
 
 
   TCP keepalive will be disabled unless explicitly set per transport type. 
E.g.:
   ```
   spark.rpc.io.enableTcpKeepAlive      true
   spark.shuffle.io.enableTcpKeepAlive  true
   ```
   We actually set both, but if only `spark.rpc.io.enableTcpKeepAlive` is set 
then it only applies for RPCs, or am I missing something?
   

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