# 查看系统默认的值 ulimit -n # 设置最大打开文件数 ulimit -n 1000000# 用户级别设置 /etc/security/limits.conf (重启服务器或重新登陆生效) root soft nofile 1040000 root hard nofile 1040000root soft nofile 1040000 root hard nproc 1040000root soft core unlimited root hard core unlimited* soft nofile 1040000 * hard nofile 1040000* soft nofile 1040000 * hard nproc 1040000* soft core unlimited * hard core unlimited# 系统全局设置 /proc/sys/fs/file-max (大于limits) 9223372036854775807# 系统全局设置 /etc/sysctl.conf net.ipv4.tcp_tw_reuse = 1 net.ipv4.tcp_tw_recycle = 0 net.ipv4.ip_local_port_range = 1024 65000 net.ipv4.tcp_mem = 786432 2097152 3145728 net.ipv4.tcp_rmem = 4096 4096 16777216 net.ipv4.tcp_wmem = 4096 4096 16777216 # 运行【 sudo sysctl -p 】生效
