[squid-users] Re: squid_kerb_auth High CPU load.

From: Markus Moeller <huaraz_at_moeller.plus.com>
Date: Sat, 4 Aug 2012 11:54:41 +0100

Hi Viorel,

   It is the first time I hear that x64 performs differently to x86. I have
no idea how to debug such a situation.

Markus

"Viorel Robu" <viorelrobu_at_yahoo.com> wrote in message
news:loom.20120803T121805-748_at_post.gmane.org...
> Simon Dwyer <mail <at> simmyd.net> writes:
>
>>
>> Hi all,
>>
>> I have got kerberos working and moved it to production but then the
>> server started smashing its cpu. It seems that the squid_kerb_auth
>> processes are killing the cpu.
>>
>> I have the following in my config.
>>
>> /etc/sysconfig/squid/
>>
>> KRB5RCACHETYPE=none
>> export KRB5RCACHETYPE
>>
>> /etc/squid/squid.conf
>>
>> auth_param negotiate program /usr/bin/negotiate_wrapper
>> --kerberos /usr/lib64/squid/squid_kerb_auth -i -r -s GSS_C_NO_NAME
>> --ntlm /usr/bin/ntlm_auth --helper-protocol=squid-2.5-ntlmssp
>> --domain=DOMAIN.EXAMPLE
>> auth_param negotiate children 30
>> auth_param negotiate keep_alive on
>>
>> From what i have read the first part should fix the high cpu issue but
>> it doesnt seem to help.
>>
>> More the case i am having trouble getting that variable active.
>>
>> Anyone else come up on this?
>>
>> Simon
>>
>>
>
> Hi Simon and Markus!
>
> Have you any progress in invetigation performance issue on squid 3.1.10
> with
> squid_kerb_auth 1.07?
> Because I ran in the same situation as Simon and found that issue apear
> only on
> x64 linux. I build two identical systems on Centos 6.3 + Squid 3.1.10 with
> x64
> and x86 system architecture. And I have to say that x86 sistem is behave
> adequate to its load. Kerberos libraries, squid and kerberos helper are
> the same
> version, the only difference is processor architecture.
>
>
>
Received on Sat Aug 04 2012 - 13:27:16 MDT

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