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Fix too many FIN_WAIT_2 connections under freebsd

查看FIN_WAIT_2连接数:

bsd#netstat -an | grep FIN_WAIT_2 | wc -l
2523

修改Lighttpd配置文件,加入下面这条语句:

server.max-keep-alive-requests = 0
bsd#netstat -an | grep FIN_WAIT_2 | wc -l
91

如果服务器开启了ipfw2防火墙的话,还需要执行:

sysctl -w net.inet.ip.fw.dyn_keepalive=0

p.s. 若为APACHE服务器,同理。

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