I'm not sure what is going on and have done so much tracing that I've just probably confused things more then anything else. i'm running Squid Cache: Version 2.6.STABLE12, on Fedora Core 6. It's configured to point to a single parent (which is a Virtual IP on the LB) with multiple servers sitting behind that virtual (so yes a pool). If i run wget's, socket scrpts etc, against squid pointing to a single host, or have all 4 hosts listed as parents, there is no issue. If I have squid pointing at the above mentioned VIP I see a 3 second delay every x connections, can be the 9th, 30th or 100th connection (again the 3 second delays are very random, but very bothersome). Another point of interest, running thru a Netapp Cache there are zero delays.. Socket level test: Fri Jul 27 08:56:53 2007: Iteration #28 Fri Jul 27 08:56:53 2007: Connecting to localhost:80... Fri Jul 27 08:56:53 2007: Connected. Fri Jul 27 08:56:53 2007: Sending request... Fri Jul 27 08:56:53 2007: Sent. Fri Jul 27 08:56:53 2007: Receiving response... <--- 3 second delay.. Fri Jul 27 08:56:56 2007: Received complete response. Fri Jul 27 08:56:56 2007: Closing socket. Fri Jul 27 08:56:56 2007: Socket closed. Squid http debug: 3 second delay at end ---------------------------------------- 2007/07/26 15:36:35| getMaxAge: 'http://host/abc/directorytest/c/i-1.JPG?rand=859749' 2007/07/26 15:36:35| ctx: enter level 0: 'http://host/abc/directorytest/c/i-1.JPG?rand=859749' 2007/07/26 15:36:35| refreshCheck: 'http:/host/abc/directorytest/c/i-1.JPG?rand=859749' 2007/07/26 15:36:35| STALE: expires 1185489395 < check_time 1185489455 2007/07/26 15:36:35| Staleness = 60 2007/07/26 15:36:35| refreshCheck: Matched '<none> 0 20% 259200' 2007/07/26 15:36:35| refreshCheck: age = 60 2007/07/26 15:36:35| check_time: Thu, 26 Jul 2007 22:37:35 GMT 2007/07/26 15:36:35| entry->timestamp: Thu, 26 Jul 2007 22:36:35 GMT 1185489395.994 SWAPOUT 00 00081DFD 741C0A705149FFD54F8CE6B6B4486D77 200 1185489396 1185383126 1185489396 image/jpeg 42492/42492 GET http://host/abc/directorytest/c/i-1.JPG? 2007/07/26 15:36:38| ctx: exit level 0 <--- shows the 3 second delay More Squid debug (different times) 3 second delay at end ------------------------------------------------- 2007/07/26 15:06:54| fwdStateFree: 0x85b9388 2007/07/26 15:06:54| fwdStart: 'http://host/abc/directorytest/c/i-1.JPG?rand=279660' 2007/07/26 15:06:54| fwdStartComplete: http://host/abc/directorytest/c/i-1.JPG?rand=279660 2007/07/26 15:06:54| fwdConnectStart: http://host/abc/directorytest/c/i-1.JPG?rand=279660 2007/07/26 15:06:54| fwdConnectStart: got addr 0.0.0.0, tos 0 2007/07/26 15:07:03| fwdConnectDone: FD 17: 'http://host/abc/directorytest/c/i-1.JPG?rand=279660' 2007/07/26 15:07:03| fwdDispatch: FD 16: Fetching 'GET http://host/abc/directorytest/c/i-1.JPG?rand=279660' 2007/07/26 15:07:03| fwdComplete: http://hostabc/directorytest/c/i-1.JPG?rand=279660 status 200 2007/07/26 15:07:03| fwdReforward: http://hostabc/directorytest/c/i-1.JPG?rand=279660? 2007/07/26 15:07:03| fwdReforward: No, ENTRY_FWD_HDR_WAIT isn't set 2007/07/26 15:07:03| fwdComplete: not re-forwarding status 200 1185487623.236 SWAPOUT 00 0008077B 8AB49FB3B897FB721E06A8ED91EE1AF 200 1185487623 1185383126 1185487623 image/jpeg 42492/42492 GET http://host/abc/directorytest/c/i-1.JPG? 2007/07/26 15:07:03| fwdServerClosed: FD 17 http://host/abc/directorytest/c/i-1.JPG?rand=279660
