- 论坛徽章:
- 0
|
tcp 0 0 192.168.113.101:40312 192.168.113.202:3306 TIME_WAIT
tcp 0 0 192.168.113.101:40315 192.168.113.202:3306 TIME_WAIT
tcp 0 0 192.168.113.101:40293 192.168.113.202:3306 TIME_WAIT
tcp 0 0 192.168.113.101:40289 192.168.113.202:3306 TIME_WAIT
tcp 0 0 192.168.113.101:40291 192.168.113.202:3306 TIME_WAIT
tcp 0 0 192.168.113.101:40300 192.168.113.202:3306 TIME_WAIT
tcp 0 0 192.168.113.101:40296 192.168.113.202:3306 TIME_WAIT
tcp 0 0 192.168.113.101:40647 192.168.113.172:3306 TIME_WAIT
[root@web1 etc]# netstat -n |grep :3306|wc -l
2726
[root@web1 etc]# netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}'
ESTABLISHED 508
FIN_WAIT1 53
CLOSING 1
TIME_WAIT 4782
[root@web1 etc]#
一般的优化都已经做过:
net.ipv4.tcp_syncookies=1
net.ipv4.tcp_max_syn_backlog=2048
net.ipv4.tcp_synack_retries=2
net.ipv4.tcp_syn_retries=3
net.ipv4.tcp_timestamps=0
net.ipv4.tcp_fin_timeout=30
net.ipv4.tcp_keepalive_time=1800
net.ipv4.window_scaling=0
net.ipv4.tcp_sack=0
net.ipv4.tcp_tw_recycle=1
net.ipv4.tcp_tw_reuse=1
大伙帮看看是什么原因?
是php调用MYSQL时执行后没有关闭连接造成的吗?默认情况下PHP也会自动关闲的啊。
郁闷! |
|