Re: [squid-users] Re: squid 3.2.0.5 even slower than squid 3.1 and doesn't work with workers >1

On Mon, 21 Mar 2011, david_at_lang.hm wrote:

> one thing that I've found is that even with --disable-ipv6 squid will still
> use IPv6 on a system that has it configured (next I'll try and see if that's
> what's going wrong on the systems that don't have it configured, but those
> systems don't have strace on them, so I'll have to build a throw-away system
> instead of using one of my standard build test systems)

if the kernel doesn't support IPv6 squid doesn't try to use it, but it
does try to use it even if configured with --disable-ipv6 if the kernel
does support it.

the problem turns out to be that with more than one worker, the workers
try to write to /var/run when they start (to write their pid file) and if
that fails they won't start.

on my debian systems, /var/run is 755 root root and that seems like a very
sane setting to use, what is it set for on your systems where you have
been testing this feature?

David Lang

> David Lang
>
> On Mon, 21 Mar 2011, david_at_lang.hm wrote:
>
>> Date: Mon, 21 Mar 2011 17:07:42 -0700 (PDT)
>> From: david_at_lang.hm
>> To: squid-users_at_squid-cache.org
>> Subject: [squid-users] Re: squid 3.2.0.5 even slower than squid 3.1 and
>> doesn't work with workers >1
>>
>> resending without the attachments since this doesn't appear to have gotten
>> through to the list. if this gets through I'll reply with them.
>>
>> David Lang
>>
>> On Mon, 21 Mar 2011, david_at_lang.hm wrote:
>>
>>> Date: Mon, 21 Mar 2011 16:41:19 -0700 (PDT)
>>> From: david_at_lang.hm
>>> To: squid-users_at_squid-cache.org
>>> Subject: Re: squid 3.2.0.5 even slower than squid 3.1 and doesn't work
>>> with
>>> workers >1
>>>
>>> testing on a different system that has IPv6 enabled I don't get the
>>> permission denied messages.
>>>
>>> but I also don't end up with squid listening on _any_ TCP port according
>>> to lsof.
>>>
>>> note that this is with the same config file (with the exception of the
>>> workers line) in all three cases.
>>>
>>> David Lang
>>>
>>> On Mon, 21 Mar 2011, david_at_lang.hm wrote:
>>>
>>>> Date: Mon, 21 Mar 2011 16:23:51 -0700 (PDT)
>>>> From: david_at_lang.hm
>>>> To: squid-users_at_squid-cache.org
>>>> Subject: squid 3.2.0.5 even slower than squid 3.1 and doesn't work with
>>>> workers >1
>>>>
>>>> In my testing of different squid versions, I attempted to use squid
>>>> 3.2.0.5
>>>>
>>>> with workers 1 it's even slower than squid 3.1 (3.0 will do 4200
>>>> requests/sec, 3.1 will do 2100 requests/sec, 3.2 will do 1400
>>>> requests/sec)
>>>>
>>>> when I set workers 2, squid won't even startup, see the attached logs of
>>>> startup for all the gory details, but short version is that with workers
>>>> 2 both threads fail to bind to the port, getting permission denied.
>>>>
>>>> below is the config options used to build this version, in case there is
>>>> something I should have put in (or shouldn't have put in) that would
>>>> affect either the speed or the ability to startup
>>>>
>>>> Squid Cache: Version 3.2.0.5
>>>> configure options: '--prefix=' '--bindir=/usr/squid/bin'
>>>> '--sbindir=/usr/squid/sbin' '--libexecdir=/usr/squid/libexec'
>>>> '--datadir=/usr/squid/share' '--sysconfdir=/etc/squid'
>>>> '--localstatedir=/usr/squid/var' '--mandir=/usr/squid/man'
>>>> '--disable-ident-lookups' '--disable-wccp' '--enable-kill-parent-hack'
>>>> '--disable-loadable-modules' '--disable-ssl' '--disable-translation'
>>>> '--with-large-files' '--with-logdir=/var/log' '--disable-ipv6'
>>>> '--with-filedescriptors=65535' '--disable-auto-locale'
>>>> --enable-ltdl-convenience
>>>>
>>>> note that the system this is on doesn't have IPv6 compiled into the
>>>> kernel, but I used '--disable-ipv6' to disable it in squid as well.
>>>>
>>>> David Lang
>>
>
Received on Tue Mar 22 2011 - 01:49:39 MDT