[squid-users] Slow response times on certain websites

From: Matthew Ceroni <matthewceroni_at_gmail.com>
Date: Thu, 29 Aug 2013 09:47:03 -0700

Hi:

I am seeing a peculiar symptom of slow responses times for certain websites.

On my production proxy server (which has a large on disk cache and in
memory cache) if I navigate to www.wellsfargo.com and click on
Comericial and then login, the login page takes upwards of 60 seconds
to display. Tailing the access logs shows this as the total response
time is 60k ms.

As I was using CentOS and it only has 3.1 in the official repositories
I spun up a test proxy and upgraded to the latest squid 3.8.1. I then
tested going to the same website. Everything appeared great. The
WellsFargo site loaded up instantly.

Therefore I upgraded my physical production proxy to 3.8.1 and hoped
to see the same thing. Unfortunately that did not happen. I still saw
60 seconds response times.

I then went back to my test proxy and tried to test again. While point
to the test proxy the page loaded just fine. However the peculiar
thing is in the access log I wasn't see a log message logged right
away. Then after 60 seconds or so I would see

29/Aug/2013:09:39:22 -0700 41553 192.168.2.123 TCP_MISS/200 23273
CONNECT wellsoffice.wellsfargo.com:443
HIER_DIRECT/wellsoffice.wellsfargo.com -

So while the page loaded instantly (I even cleared the browser cache,
restarted squid so the memory cache was cleared, there is no disk
cache on my test proxy) squid reported that it took 41 seconds to
service.

Thanks
Received on Thu Aug 29 2013 - 16:47:12 MDT

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