From apache at lmem.icsurselva.ch  Thu Sep 25 17:29:42 2008
From: apache at lmem.icsurselva.ch (Valentin Schmid - ICSurselva AG)
Date: Thu, 25 Sep 2008 17:29:42 +0200 (CEST)
Subject: [mpm-itk] Feature Request
Message-ID: <3087110a4c4e0a0375f8b5abaf172561.squirrel@admin.mail1.icsurselva.ch>

Hello,

Here's my Problem:
http://marc.info/?l=php-install&m=122233435625755&w=2
Because there's no Solution for this Problem in php, I thought
it would be wise to do this in the mpm.

Would it be possible to add the following Process Limits per Virtualhost:
Limit the CPU consumption of the processes in this VHost
(e.g. via Configuration variable RLimitCPUVHost)
Limits the memory consumption of the processes in this VHost
(e.g. via Configuration variable RLimitMEMVHost)

I think this could be done like this...
In the file server/mpm/experimental/itk/itk.c procedure itk_post_read: Add
the following lines:
...
#ifdef RLIMIT_CPU
    if (sconf->rlimit_cpu_vhost != NULL) {
        if ((setrlimit(RLIMIT_CPU, rlimit_cpu_vhost)) != 0) {
            return an error;
        }
    }
#endif
#if defined(RLIMIT_AS)
    if (sconf->rlimit_mem_vhost != NULL) {
        if ((setrlimit(RLIMIT_AS, sconf->rlimit_mem_vhost)) != 0) {
            return an error;
        }
    }
#elif defined(RLIMIT_DATA)
    if (sconf->rlimit_mem_vhost != NULL) {
        if ((setrlimit(RLIMIT_DATA, sconf->rlimit_mem_vhost)) != 0) {
            return an error;
        }
    }
#elif defined(RLIMIT_VMEM)
    if (sconf->rlimit_mem_vhost != NULL) {
        if ((setrlimit(RLIMIT_VMEM, sconf->rlimit_mem_vhost)) != 0) {
            return an error;
        }
    }
#endif
...







From sgunderson at bigfoot.com  Fri Sep 26 13:35:22 2008
From: sgunderson at bigfoot.com (Steinar H. Gunderson)
Date: Fri, 26 Sep 2008 13:35:22 +0200
Subject: [mpm-itk] Feature Request
In-Reply-To: <3087110a4c4e0a0375f8b5abaf172561.squirrel@admin.mail1.icsurselva.ch>
References: <3087110a4c4e0a0375f8b5abaf172561.squirrel@admin.mail1.icsurselva.ch>
Message-ID: <20080926113522.GB19978@uio.no>

On Thu, Sep 25, 2008 at 05:29:42PM +0200, Valentin Schmid - ICSurselva AG wrote:
> Here's my Problem:
> http://marc.info/?l=php-install&m=122233435625755&w=2
> Because there's no Solution for this Problem in php, I thought
> it would be wise to do this in the mpm.

The MPM is probably not the right place for this -- it sounds like something
you could do in a separate Apache module. I don't know PHP, though, so I
cannot say anything about your specific case.

/* Steinar */
-- 
Homepage: http://www.sesse.net/



From apache at lmem.icsurselva.ch  Fri Sep 26 23:46:53 2008
From: apache at lmem.icsurselva.ch (Valentin Schmid - ICSurselva AG)
Date: Fri, 26 Sep 2008 23:46:53 +0200 (CEST)
Subject: [mpm-itk] Feature Request
In-Reply-To: <20080926113522.GB19978@uio.no>
References: <3087110a4c4e0a0375f8b5abaf172561.squirrel@admin.mail1.icsurselva.ch>
	<20080926113522.GB19978@uio.no>
Message-ID: <fbd97826df4f5bfcef02bee963519736.squirrel@webmail.icsurselva.ch>

Hello Steinar,

Thanks for your answer.
> The MPM is probably not the right place for this -- it sounds like
> something you could do in a separate Apache module.

You're probably right. I just found something like that what I need:
http://www.ucc.asn.au/~dagobah/things/mod_rlimit.c
(Unfortunately only for apache 1.3)

There's also an apache core patch with this issue:
http://archives.neohapsis.com/archives/openbsd/2005-12/1436.html

Kind regards valli