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

On Tue, 22 Mar 2011, Amos Jeffries wrote:

> On Mon, 21 Mar 2011 18:34:41 -0700 (PDT), 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)
>>
>> David Lang
>>
>
> There are several extremely strange things going on here.
> I'm cc'ing squid-dev in on this so if the workers behaviour continues after
> this test Alex can be aware of it. Please followup to that list.
>
> Can you try a clean build (brand new build directory, fresh copy of the
> sources, re-./configure and re-make) using the 3.2 daily snapshot (tarball or
> rsync) ?
>
> If that still fails with either the v6 or the workers issue please provide a
> copy of the include/autoconf.h and config.log files generated.

I tracked down that it doesn't use IPv6 if the kernel doesn't support it,
but if the kernel does support it squid ignores the --disable-ipv6 flag

I found that my startup problem was attempting to write the .pid files.
with more than one worker, they try to write their pid file after they
have changed their effective userid, and the userid 'proxy' was not
allowed to write to /var/run where I had the pidfiles set to write.

the major problem here is the horrible logging that didn't make it clear
what was failing (and why failing to write a pid file would break the rest
of squid also doesn't make sense)

I put this in other e-mails, but since the developers are being copied on
this one, I figured I'd put it here to make it easier to find.

David Lang

> NP: I have not read the earlier mails
> Amos
>
>> 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 - 02:39:16 MDT