[users@httpd] Multiple Apache servers advice

["Andrew E. White" <ae...@uark.edu>]

Due to a set of requirements, I am having to setup apache to run with multiple instances. For the most part we want the httpd.conf files to be the same. I realize that I must set each instance to bind to its own set of ports, but what else should I worry about?

Are there going to be any issues with log file sharing? I don't know if writes are atomic. 
Any common modules that might have problems with this scheme?
Are there any other problems/risks I should consider?

I have read the following...
http://www.arcknowledge.com/gmane.comp.apache.user/2002-05/msg00972.html

But the thread doesn't address *how* to "make sure that each Apache instance has its own lock files, scoreboard files, PID file, log files, proxy cache directory [etc]"
 
Thanks in advance,
Andrew


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Re: [users@httpd] Multiple Apache servers advice

[Jonathan Mangin <jo...@comcast.net>]

----- Original Message ----- 
From: "Andrew E. White" <ae...@uark.edu>
To: <us...@httpd.apache.org>
Sent: Monday, March 19, 2007 3:48 PM
Subject: [users@httpd] Multiple Apache servers advice


> Due to a set of requirements, I am having to setup apache to run with
multiple instances. For the most part we want the httpd.conf files to be the
same. I realize that I must set each instance to bind to its own set of
ports, but what else should I worry about?
>
> Are there going to be any issues with log file sharing? I don't know if
writes are atomic.
> Any common modules that might have problems with this scheme?
> Are there any other problems/risks I should consider?
>
> I have read the following...
> http://www.arcknowledge.com/gmane.comp.apache.user/2002-05/msg00972.html
>
> But the thread doesn't address *how* to "make sure that each Apache
instance has its own lock files, scoreboard files, PID file, log files,
proxy cache directory [etc]"
>
> Thanks in advance,
> Andrew
>
>
I configured/installed two instances of 2.0.59 recently, with
different --prefix(es).  Without a 'make clean' after the first
install, both were sharing the original's log files.  PID and
logging are now separate.  Don't know about other files.
--Jon


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