Hi Renoy, The message below shows there are connection hick-ups between Remote and Local machines. Unexpected exception during request; channel = [id: 0x08a9bc0f, L:/ 10.50.11.123:9042 ! R:/10.50.11.182:44734]
L stands for local machine address and R stands for Remote machine address. Please check if there are any connection issues or if any firewall restrictions between two machines. As you have upgraded the driver recently, I will suggest checking if any configuration is missing. Thanks, Sunil Pawar On Mon, Apr 26, 2021 at 12:50 PM velocix cephusers < velocixcephus...@gmail.com> wrote: > Hi, > > We are having a 5 node Cassandra cluster running in version 3.0.13. > Recently we upgrade the Cassandra cpp driver on the application side > from cassandra-cpp-driver-2.6.0-1.el7.centos.x86_64 > to cassandra-cpp-driver-2.15.3-1.el7.x86_64. After the upgrade, Cassandra > system.log is continuously filled with the below message. > > INFO [SharedPool-Worker-11] 2021-04-26 07:11:18,445 Message.java:615 - > Unexpected exception during request; channel = [id: 0x08a9bc0f, L:/ > 10.50.11.123:9042 ! R:/10.50.11.182:44734] > io.netty.channel.unix.Errors$NativeIoException: syscall:read(...)() > failed: Connection reset by peer > at io.netty.channel.unix.FileDescriptor.readAddress(...)(Unknown > Source) ~[netty-all-4.0.44.Final.jar:4.0.44.Final] > > Even though these INFO level log prints are causing system.log to be > rotated 4 or 5 times a day, there is no functional impact seen. > > What could be the problem here? Let me know if more details are needed. > > Regards, > Renoy Paulose >
