[squid-users] R: R: [squid-users] Two squid processes can run as squid users ?!

When I say squid user, I reference to proxy user for 2.7 version.

This is my output of squid processes:

A) root 3617 1 0 Jun03 ? 00:00:00 /usr/sbin/squid -D -YC
B) proxy 3621 3617 0 Jun03 ? 00:00:01 (squid) -D -YC
C) proxy 3622 3621 0 Jun03 ? 00:00:00 (unlinkd)

There are 3 processes, where A is the squid monitor.
I'd like knowing if I can run only processes B+C, excluding A; if I remember
right many years ago I had problems with monitor process because squid
starting went loop. Monitor tried to start squid until 10 times.
I'm also interesting to know how start squid without using monitor process
(A). What do you think ?

>I don't quite understand what you are meaning by "two processes".
>

It means only B+C

>I'd also recommend getting rid of cache_effective_group and ensuring the
> OS group privileges are correctly set for the squid user

I have not to use "cache_effective_group" directive but what means "ensuring
the OS group privileges are correctly set for the squid user" ?

thanks

-----Messaggio originale-----
Da: Amos Jeffries [mailto:squid3_at_treenet.co.nz]
Inviato: Friday, June 05, 2009 5:33 AM
A: Riccardo Castellani
Oggetto: Re: R: [squid-users] Two squid processes can run as squid users ?!

Riccardo Castellani wrote:
> About "I'm not sure from that info why the unlinkd is not also showing up"
> I forgot this entry in SQUID 2.7 infact reduced output with grep but only
> "squid" word.
>
> proxy 3622 3621 0 Jun03 ? 00:00:00 (unlinkd)
>
> If I want 2 squid running processes excluding 3rd root process (which
> monitors squid), how can I set this behaviour ?
>

I don't quite understand what you are meaning by "two processes".

* two "(squid) -D -YC" processes?
  http://wiki.squid-cache.org/MultipleInstances

* two processing running as 'squid' user?
     "cache_effective_user squid"

Amos

>
>
> I forgot this lines
>
> -----Messaggio originale-----
> Da: Amos Jeffries [mailto:squid3_at_treenet.co.nz]
> Inviato: Thursday, June 04, 2009 2:07 PM
> A: Riccardo Castellani
> Cc: squid-users_at_squid-cache.org
> Oggetto: Re: [squid-users] Two squid processes can run as squid users ?!
>
> Riccardo Castellani wrote:
>> I'm migrating from "Squid 2.5.STABLE3" to "Squid 2.7.STABLE3" but I noted
>> this point:
>>
>>
>> SQUID 2.5
>>
>> There are 2 squid processes which run both as squid user:
>>
>> squid 11959 1 6 May25 ? 15:44:49 (squid) -D
>> squid 12022 11959 0 May25 ? 00:01:38 (unlinkd)
>>
>> This is a part of my squid.conf:
>> #cache_effective_user squid
>> #cache_effective_group squid
>>
>>
>>
>> SQUID 2.7
>>
>> There are 2 squid processes which run one as root user and other as squid
>> user:
>>
>> root 3617 1 0 Jun03 ? 00:00:00 /usr/sbin/squid -D
> -YC
>> proxy 3621 3617 0 Jun03 ? 00:00:01 (squid) -D -YC
>>
>> This is a part of my squid.conf:
>> # cache_effective_user proxy
>> # cache_effective_group proxy
>>
>>
>>
>> 1- In squid 2.7, can I start both processes as squid user ?
>> 2- What behaviour is't suggested ? 2 processes which run as squid user
>> (Squid 2.5) or 2 processes as root+squid users (Squid 2.7) ?
>>
>
> You can, though its not recommended. The process you see running as root
> is the master process which acts like the obsolete RunCache/RunAccel.
>
> Its primary purpose is to monitor the other low-privilege process and
> restart it if there are any problems. To maintain constant uptime from a
> user viewpoint.
>
> It's also responsible for controlling issues such as reconfiguration and
> restarts happen cleanly.
>
> I'm not sure from that info why the unlinkd is not also showing up.
>
>
> I would recommend starting the master as root when using 2.7.
> I'd also recommend getting rid of cache_effective_group and ensuring the
> OS group privileges are correctly set for the squid user. Squid detects
> them just fine these days.
>
> Amos

-- 
Please be using
   Current Stable Squid 2.7.STABLE6 or 3.0.STABLE15
   Current Beta Squid 3.1.0.8 or 3.0.STABLE16-RC1