Phibee Network Operation Center wrote:
Hi
i have a lot of error into my cache.log of squid:
2009/03/16 07:44:47| WARNING: up to 149 pending requests queued
2009/03/16 07:44:47| Consider increasing the number of ntlmauthenticator
processes to at least 184 in your config file.
2009/03/16 07:45:17| WARNING: All ntlmauthenticator processes are busy.
2009/03/16 07:45:17| WARNING: up to 156 pending requests queued
2009/03/16 07:45:17| Consider increasing the number of ntlmauthenticator
processes to at least 191 in your config file.
2009/03/16 07:45:32| storeDirWriteCleanLogs: Starting...
2009/03/16 07:45:32| Finished. Wrote 0 entries.
2009/03/16 07:45:32| Took 0.0 seconds ( 0.0 entries/sec).
FATAL: Too many queued ntlmauthenticator requests (176 on 35)
Squid Cache (Version 2.6.STABLE1): Terminated abnormally.
CPU Usage: 110.491 seconds = 56.740 user + 53.751 sys
Maximum Resident Size: 0 KB
Page faults with physical i/o: 0
Memory usage for squid via mallinfo():
total space in arena: 9240 KB
Ordinary blocks: 7030 KB 243 blks
Small blocks: 0 KB 0 blks
Holding blocks: 224 KB 1 blks
Free Small blocks: 0 KB
Free Ordinary blocks: 2209 KB
Total in use: 7254 KB 79%
Total free: 2209 KB 24%
I think's it's this config:
auth_param ntlm program /usr/bin/ntlm_auth
--helper-protocol=squid-2.5-ntlmssp
auth_param ntlm children 35
#auth_param ntlm use_ntlm_negotiate on
#auth_param ntlm max_challenge_reuses 0
#auth_param ntlm max_challenge_lifetime 10 minutes
auth_param basic program /usr/bin/ntlm_auth
--helper-protocol=squid-2.5-basic
auth_param basic children 15
auth_param basic realm Squid proxy-caching web server
auth_param basic credentialsttl 2 hours
Correct ?
What is the best configuration for NTLM ?
NTLM helpers are blocking processes. You need at least one per
concurrent client at your peak load times.
Using "ntlm credentialsttl" and following Squids advice on how many
children to configure to match your peak load is the best we can say.
Amos
--
Please be using
Current Stable Squid 2.7.STABLE6 or 3.0.STABLE13
Current Beta Squid 3.1.0.6
