Linuxtcp connection is too high

The number of Linuxtcp connections is too high-Linux Enterprise applications-Linux server application information. For details, refer to the following section. The mrtg statistics of yesterday show that the number of connections exceeds 1000, so I checked:

[Root @ localhost db] # netstat-n | awk '/^ tcp/{++ S [$ NF]} END {for (a in S) print, S [a]}'

LAST_ACK 92
SYN_RECV 246
CLOSE_WAIT 12
ESTABLISHED 547
FIN_WAIT1 33
CLOSING 1
SYN_SENT 6
TIME_WAIT 2243

TIME_WAIT is too high, check the online information, refer to: http://blog.csdn.net/Avoid/archive/2007/11/29/1908038.aspx