Warning about out of memory/processes

[Tiago Marques <ti...@gmail.com>]

Hi all,

I'm not exactly new to Apache but there are some things that I'd like to ask
about, which I haven't been able to google with decent results.

So, I just noticed Apache doesn't handle multiple connections very well(like
1000) and it uses a lot of memory with our PHP and Rails apps. I've limited
the system to be able to handle about 2000 connections but since I haven't
tested it exhaustively, I may have to cut on that a bit to ensure there's
always available mem to use. The question is, how can I know that Apache is
not serving enough connections, for instance, if it hits the limit I would
like to be able to e-mail myself to know that it needs tuning or a server
upgrade. Does this show up on logs or can I program some kind of action to
do it? I can implement scripting to do this but need to find a way that
Apache warns about this, if at all. Or am I limited to periodically scanning
the number of processes running and e-mail when it hits a certain level?

Some insight on this is greatly appreciated. Thanks.

Best regards,
Tiago Marques

Re: Warning about out of memory/processes

[Tiago Marques <ti...@gmail.com>]

Thanks.

On Thu, Nov 11, 2010 at 5:01 PM, Jeff Trawick <tr...@gmail.com> wrote:

> On Thu, Nov 11, 2010 at 11:49 AM, Tiago Marques <ti...@gmail.com>
> wrote:
> > Hi all,
> > I'm not exactly new to Apache but there are some things that I'd like to
> ask
> > about, which I haven't been able to google with decent results.
>
> http://httpd.apache.org/lists.html#http-users
>
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> To unsubscribe, e-mail: community-unsubscribe@apache.org
> For additional commands, e-mail: community-help@apache.org
>
>

Re: Warning about out of memory/processes

[Jeff Trawick <tr...@gmail.com>]

On Thu, Nov 11, 2010 at 11:49 AM, Tiago Marques <ti...@gmail.com> wrote:
> Hi all,
> I'm not exactly new to Apache but there are some things that I'd like to ask
> about, which I haven't been able to google with decent results.

http://httpd.apache.org/lists.html#http-users

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Re: Warning about out of memory/processes

[Flavio Pellanda <fl...@logintas.ch>]

Hi,

Probably this is the wrong mailing-list, this is the community mailing-list. 
Please use one of the http server projects list. eg: dev@httpd.apache.org

See: http://projects.apache.org/projects/http_server.html

Btw. do you use mod-passenger for your rails application? I think this 
performs best.

Cheers, Flavio

On Thursday, November 11, 2010 05:49:59 pm Tiago Marques wrote:
> Hi all,
> 
> I'm not exactly new to Apache but there are some things that I'd like to
> ask about, which I haven't been able to google with decent results.
> 
> So, I just noticed Apache doesn't handle multiple connections very
> well(like 1000) and it uses a lot of memory with our PHP and Rails apps.
> I've limited the system to be able to handle about 2000 connections but
> since I haven't tested it exhaustively, I may have to cut on that a bit to
> ensure there's always available mem to use. The question is, how can I
> know that Apache is not serving enough connections, for instance, if it
> hits the limit I would like to be able to e-mail myself to know that it
> needs tuning or a server upgrade. Does this show up on logs or can I
> program some kind of action to do it? I can implement scripting to do this
> but need to find a way that Apache warns about this, if at all. Or am I
> limited to periodically scanning the number of processes running and
> e-mail when it hits a certain level?
> 
> Some insight on this is greatly appreciated. Thanks.
> 
> Best regards,
> Tiago Marques

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