Hi,
Our cluster nodes are behind a SLB(Service Load Balancer) with a VIP and the 
Cassandra client access the cluster by the VIP. 
System.log print the below IOException every several seconds. I guess it's the 
SLB service which Ping the port 9042 of the Cassandra node periodically and 
caused the exceptions print.
Any method to prevend the Ping caused exceptions been print?

INFO  [SharedPool-Worker-1] 2017-06-19 16:54:15,997 Message.java:605 - 
Unexpected exception during request; channel = [id: 0x332c09b7, 
/10.253.106.210:9042]
java.io.IOException: Error while read(...): Connection reset by peer
at io.netty.channel.epoll.Native.readAddress(Native Method) 
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at 
io.netty.channel.epoll.EpollSocketChannel$EpollSocketUnsafe.doReadBytes(EpollSocketChannel.java:675)
 ~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at 
io.netty.channel.epoll.EpollSocketChannel$EpollSocketUnsafe.epollInReady(EpollSocketChannel.java:714)
 ~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:326) 
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:264) 
~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at 
io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
 ~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at 
io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
 ~[netty-all-4.0.23.Final.jar:4.0.23.Final]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_85]

Cheer,
-Simon

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