> So far I'm sticking by my original hunch - that the problem
> is the PDC taking too long to respond, and not with Squid
> itself. But we'll see what the numbers reveal.
Since upping the # of children I still haven't had any
helperStatefulDefer's, but I am getting invalid callback's and since
I've increased NTLM logging I'm seeing a number of challenge exceeded
max lifetime by xxx seconds.
Here's an excerpt from cache.log:
2003/07/01 19:03:15| authenticateValidateUser: Auth_user_request was
NULL!
2003/07/01 19:03:15| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:15| authenticateNTLMChangeChallenge_p: Challenge
exceeded max lifetime by 52 seconds
2003/07/01 19:03:15| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:15| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:15| authenticateNTLMAuthenticateUser: proxy-auth cache
miss.
2003/07/01 19:03:15| authenticateValidateUser: Auth_user_request was
NULL!
2003/07/01 19:03:15| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:15| authenticateNTLMChangeChallenge_p: Challenge
exceeded max lifetime by 51 seconds
2003/07/01 19:03:15| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:15| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:15| authenticateNTLMAuthenticateUser: proxy-auth cache
miss.
2003/07/01 19:03:16| authenticateValidateUser: Auth_user_request was
NULL!
2003/07/01 19:03:16| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:16| authenticateNTLMChangeChallenge_p: Challenge
exceeded max lifetime by 52 seconds
2003/07/01 19:03:16| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:16| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:16| authenticateNTLMAuthenticateUser: proxy-auth cache
miss.
2003/07/01 19:03:16| authenticateValidateUser: Auth_user_request was
NULL!
2003/07/01 19:03:16| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:16| authenticateNTLMChangeChallenge_p: Challenge uses
(1) exceeded max uses (0)
2003/07/01 19:03:16| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:16| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:16| authenticateNTLMAuthenticateUser: proxy-auth cache
miss.
2003/07/01 19:03:20| authenticateValidateUser: Auth_user_request was
NULL!
2003/07/01 19:03:20| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:20| authenticateNTLMChangeChallenge_p: Challenge
exceeded max lifetime by 3125 seconds
2003/07/01 19:03:20| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:20| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:20| authenticateNTLMAuthenticateUser: proxy-auth cache
miss.
2003/07/01 19:03:20| authenticateValidateUser: Auth_user_request was
NULL!
2003/07/01 19:03:20| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:20| authenticateNTLMChangeChallenge_p: Challenge
exceeded max lifetime by 3124 seconds
2003/07/01 19:03:20| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:20| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:20| authenticateNTLMAuthenticateUser: proxy-auth cache
miss.
2003/07/01 19:03:23| authenticated
ch (removed)
auth NTLM (removed)
authuser (removed)
2003/07/01 19:03:23| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:23| authenticated
ch (removed)
auth NTLM (removed)
authuser (removed)
2003/07/01 19:03:23| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:23| AuthenticateNTLMHandleReply: invalid callback data.
Releasing helper '0x64d7c8'.
2003/07/01 19:03:23| authenticateNTLMHelperServerAvailable: not starving
- returning 1
2003/07/01 19:03:23| AuthenticateNTLMHandleReply: invalid callback data.
Releasing helper '0x64b718'.
All told there were 174 challenge exceeded max lifetime messages that
ranged between 1 and 24706 seconds. And 44 invalid callback data
messages.
At 20:42 this is what the cache manager report looked like.
NTLM Authenticator Statistics:
number running: 32 of 32
requests sent: 6218
replies received: 6218
queue length: 0
avg service time: 364 msec
# FD PID # Requests # Deferred Requests Flags Time Offset Request
1 7 7039 1027 0 A 51.515 0 (none)
2 8 7040 327 0 A 51.508 0 (none)
3 9 7041 127 0 A 51.434 0 (none)
4 10 7042 42 0 A 2781.871 0 (none)
5 11 7043 13 0 A 5545.033 0 (none)
6 12 7044 9 0 A 5545.012 0 (none)
7 13 7045 3 0 A 5544.775 0 (none)
8 14 7046 2 0 A 5544.755 0 (none)
9 15 7047 0 0 A 544276.436 0 (none)
(the rest were unused)
After 20:42 there were another 34 lifetime exceeded messages, ranging
from 36 to 2451 seconds.
~ Daniel
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Received on Wed Jul 02 2003 - 06:05:50 MDT
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