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

Reply via email to