Re: [squid-users] Too many queued ntlmauthenticator requests (26 on 5)

 On Tue, 28 Jun 2011 13:17:56 -0300, Usuário do Sistema wrote:
> Hello everyone, sometimes my squid process go to down and quickly to
> up again.maybe less of 3 seconds.

 Yes. An automatic restart after the crash.

>
> in the logs ( /var/log/messages ) appear follow message:
>
> Jun 27 07:23:11 jvelnxfw02 squid[25247]: Too many queued
> ntlmauthenticator requests (26 on 5)
> Jun 27 07:23:11 jvelnxfw02 squid[25245]: Squid Parent: child process
> 25247 exited due to signal 6
> Jun 27 07:23:14 jvelnxfw02 squid[25245]: Squid Parent: child process
> 26127 started
>
> I'm using the Active Directory to authentication. follow my squid
> parameters about ntlm
>
> auth_param ntlm program /usr/bin/ntlm_auth
> --helper-protocol=squid-2.5-ntlmssp
>
> auth_param basic children 20
>
> auth_param basic realm Acesso a Internet Tigre SA
>
> auth_param basic credentialsttl 2 hours

 "basic" authentication protocol settings have no effect on "ntlm"
 authentication protocol.

 What this means is that you are using the default value of "auth_param
 ntlm children 5".

 The message Squid announced also said "(26 on 5)", meaning the
 configured _5_ ntlm helpers were trying to handle 26 requests
 simultaneously. They can handle at most one, and have one queued
 waiting. So a total capacity of 10 new client connections to your Squid
 at any one time. Modern web browsers will consume a large chunk of that
 low capacity (4-6 of the 10) loading a single web page.

 Amos
Received on Wed Jun 29 2011 - 00:41:47 MDT