fs.file-max //系统所有进程所能打开文件句柄的最大数,,系统级的。 man 5 proc
fs.file-nr //the number of file descriptors allocated since boot total free allocated file descriptors 最大句柄数 (ulimit -a ; unlimit -n 2048) (当前打开的文件句柄为第一列减去第二列)。
参考:
net.ipv4.tcp_tw_reuse = 1 //重用time-wait的socket
net.ipv4.tcp_tw_recycle = 1 //开启time-wait的socket的快速回收
net.ipv4.tcp_keepalive_intvl = 75 //time between tcp keepalive probe
net.ipv4.tcp_keepalive_probes = 9 //the max number of keepalive probe to send
net.ipv4.tcp_keepalive_time = 7200 //tcp发送keepalive的频率
net.ipv4.tcp_fin_timeout //The lifetime of orphaned FIN_WAIT2 state sockets
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