Alot of TIME_WAIT connections? - CentOS

Question

I'm having a huge problem, ok first let me go over my setup.

I have 4 web servers running php which saves sessions to a memcache over my private network. Today just about every hour I have my logs filled up with this error

ERROR - 2010-11-07 16:31:33 --> Severity: Notice --> session_start() [function.session-start]: Server 10.xx.xx.xx (tcp 11211) failed with: Connection timed out (110) Session.php 212

I checked the memcache server and it doesn't have alot of connections to it just a about 5 or so established connections, but when I check web3 server for an example it has 13446 connections in TIME_WAIT and about 6962 of those are port 11211. My question is, is this high number of time_waits causes my server to connection time out to the memcache server or is there something else i need to be looking at ?

Answer 1

TIME_WAIT can be a side effect of NATing or of firewall configuration, but in neither case does it generally represent an issue, although it may be a symptom of a bigger problem. If you do in fact have a firewall separating the two machines, consider eliminating it.

Answer 2

it is normal, you have not problems