Hi Expert, I have this error in the Cassandra logs,the nodes are ok and behave as normal, INFO [epollEventLoopGroup-2-8] 2018-05-05 16:57:45,537 Message.java:623 - Unexpected exception during request; channel = [id: 0xa4879fdd, L:/10.175.20.112:9042 - R:/10.175.20.73:2508] io.netty.channel.unix.Errors$NativeIoException: syscall:read(...)() failed: Connection reset by peer at io.netty.channel.unix.FileDescriptor.readAddress(...)(Unknown Source) ~[netty-all-4.0.44.Final.jar:4.0.44.Final] INFO [epollEventLoopGroup-2-9] 2018-05-05 16:57:45,537 Message.java:623 - Unexpected exception during request; channel = [id: 0x86e1a3d9, L:/10.175.20.112:9042 - R:/10.175.20.37:44006] io.netty.channel.unix.Errors$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] INFO [HintsDispatcher:43] 2018-05-05 16:57:49,991 HintsStore.java:126 - Deleted hint file 5696cbef-edd1-42a6-b4f1-3c2f0881b8cb-1525510648347-1.hints INFO [HintsDispatcher:43] 2018-05-05 16:57:49,991 HintsDispatchExecutor.java:282 - Finished hinted handoff of file 5696cbef-edd1-42a6-b4f1-3c2f0881b8cb-1525510648347-1.hints to endpoint /10.175.20.114: 5696cbef-edd1-42a6-b4f1-3c2f0881b8cb INFO [Service Thread] 2018-05-05 16:58:01,159 GCInspector.java:284 - ParNew GC in 309ms. CMS Old Gen: 1258291920 -> 1258482424; Par Eden Space: 503316480 -> 0; Par Survivor Space: 700080 -> 782256 WARN [GossipTasks:1] 2018-05-05 16:58:23,273 Gossiper.java:791 - Gossip stage has 2 pending tasks; skipping status check (no nodes will be marked down) INFO [HintsDispatcher:44] 2018-05-05 16:58:33,913 HintsStore.java:126 - Deleted hint file 21033fe2-dca9-42a5-8e68-496dd3517f53-1525510690633-1.hints INFO [HintsDispatcher:44] 2018-05-05 16:58:33,913 HintsDispatchExecutor.java:282 - Finished hinted handoff of file 21033fe2-dca9-42a5-8e68-496dd3517f53-1525510690633-1.hints to endpoint /10.175.20.113: 21033fe2-dca9-42a5-8e68-496dd3517f53 INFO [epollEventLoopGroup-2-10] 2018-05-05 16:58:41,750 Message.java:623 - Unexpected exception during request; channel = [id: 0xc640c7a2, L:/10.175.20.112:9042 - R:/10.175.20.37:56784] 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] the limit setting in CentOS 6.8 is setting as below : * hard memlock unlimited * hard nofile 100000 * soft nofile 100000 * soft memlock unlimited * hard nproc 32768 * hard as unlimited * soft nproc 32768 * soft as unlimited root soft nofile 32768 root hard nofile 32768
can I ignore this error or do you have any suggestions about this error? Best Regards, 倪项菲/ David Ni 中移德电网络科技有限公司 Virtue Intelligent Network Ltd, co. Add: 2003,20F No.35 Luojia creative city,Luoyu Road,Wuhan,HuBei Mob: +86 13797007811|Tel: + 86 27 5024 2516