The epoll mode definitely exists in spark, but the official documentation does not mention it, nor any of the other settings that appear to be unofficially documented in:
https://github.com/jaceklaskowski/mastering-apache-spark-book/blob/master/spark-rpc-netty.adoc I don't seem to have any particular performance problems with the default NIO impl, but the "lower gc pressure" mentioned in the official netty docs https://github.com/netty/netty/wiki/Native-transports does seem attractive. However, the fact that it's not even documented gives me pause. Is it deprecated, or perhaps just not useful? Do I have to stick the native library jar into the spark classpath to use it? -- *CONFIDENTIALITY NOTICE: This email message, and any documents, files or previous e-mail messages attached to it is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message.* --------------------------------------------------------------------- To unsubscribe e-mail: user-unsubscr...@spark.apache.org
