今天机器的日志有下面的报错:

Oct 22 15:22:19 web1 kernel: TCP: time wait bucket table overflow

Oct 22 15:22:19 web1 kernel: TCP: time wait bucket table overflow

Oct 22 15:22:19 web1 kernel: TCP: time wait bucket table overflow

Oct 22 15:22:19 web1 kernel: TCP: time wait bucket table overflow

Oct 22 15:22:19 web1 kernel: TCP: time wait bucket table overflow

Oct 22 15:22:19 web1 kernel: TCP: time wait bucket table overflow

Oct 22 15:22:19 web1 kernel: TCP: time wait bucket table overflow

Oct 22 15:22:20 web1 kernel: TCP: time wait bucket table overflow

Oct 22 15:22:20 web1 kernel: TCP: time wait bucket table overflow

Oct 22 15:22:20 web1 kernel: TCP: time wait bucket table overflow



解决方法:

添加在 /etc/sysctl.conf 添加如下记录:

net.ipv4.tcp_max_tw_buckets = 20000  


然后执行 sysctl -p


通过执行 sysctl -a | grep tcp_max_tw_buckets  验证修改是否起效。