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Posted to users@httpd.apache.org by Tony Rosete <to...@tsgrp.com> on 2002/03/20 18:27:57 UTC
Hung http processes
Has anybody out there encountered the problem where httpd processes just
hang? We've noticed that at times httpd jumps to the top of the 'top' list
and never dies while taking a huge chunk of the CPU. There seems to be no
pattern to what starts them, but just a few of them bring the server to its
knees. Anybody encounter this with any form of resolution?
Thanks.
RE: Hung http processes
Posted by Tony Rosete <to...@tsgrp.com>.
will do. Thanks for the help..
-----Original Message-----
From: Artiom Morozov [mailto:artiom@phreaker.net]
Sent: Wednesday, March 20, 2002 1:38 PM
To: users@httpd.apache.org
Subject: Re: Hung http processes
just realized ps may not help if no process was spawned. i think you
should at first set loglevel to debug and wait for a hang. once you get
it, post appropriate log part here.
îÁ 2002.03.20 20:33 Tony Rosete ÎÁÐÉÓÁÌ:
>
> What would you expect to see when you run that? When do that it gives
> me a
> few more parameters, but doesn't really tell me what is hanging on to
> the
> hung http process.
>
>
>
> -----Original Message-----
> From: Artiom Morozov [mailto:artiom@phreaker.net]
> Sent: Wednesday, March 20, 2002 11:38 AM
> To: users@httpd.apache.org
> Subject: Re: Hung http processes
>
>
> Probably you have CGI or SSI <#include virtual> or <#exec> or php or
> whatever else hanging, not apache itself. On linux, type "ps wfax |
> fgrep PID_of_time_consuming_process" and you'll see what is there
>
> On 2002.03.20 19:27 Tony Rosete wrote:
> >
> > Has anybody out there encountered the problem where httpd processes
> > just
> > hang? We've noticed that at times httpd jumps to the top of the
> 'top'
> > list
> > and never dies while taking a huge chunk of the CPU. There seems to
> > be no
> > pattern to what starts them, but just a few of them bring the server
> > to its
> > knees. Anybody encounter this with any form of resolution?
> >
>
> ---------------------------------------------------------------------
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> Project.
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Re: Hung http processes
Posted by Artiom Morozov <ar...@phreaker.net>.
just realized ps may not help if no process was spawned. i think you
should at first set loglevel to debug and wait for a hang. once you get
it, post appropriate log part here.
îÁ 2002.03.20 20:33 Tony Rosete ÎÁÐÉÓÁÌ:
>
> What would you expect to see when you run that? When do that it gives
> me a
> few more parameters, but doesn't really tell me what is hanging on to
> the
> hung http process.
>
>
>
> -----Original Message-----
> From: Artiom Morozov [mailto:artiom@phreaker.net]
> Sent: Wednesday, March 20, 2002 11:38 AM
> To: users@httpd.apache.org
> Subject: Re: Hung http processes
>
>
> Probably you have CGI or SSI <#include virtual> or <#exec> or php or
> whatever else hanging, not apache itself. On linux, type "ps wfax |
> fgrep PID_of_time_consuming_process" and you'll see what is there
>
> On 2002.03.20 19:27 Tony Rosete wrote:
> >
> > Has anybody out there encountered the problem where httpd processes
> > just
> > hang? We've noticed that at times httpd jumps to the top of the
> 'top'
> > list
> > and never dies while taking a huge chunk of the CPU. There seems to
> > be no
> > pattern to what starts them, but just a few of them bring the server
> > to its
> > knees. Anybody encounter this with any form of resolution?
> >
>
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server
> Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
---------------------------------------------------------------------
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RE: Hung http processes
Posted by Tony Rosete <to...@tsgrp.com>.
What would you expect to see when you run that? When do that it gives me a
few more parameters, but doesn't really tell me what is hanging on to the
hung http process.
-----Original Message-----
From: Artiom Morozov [mailto:artiom@phreaker.net]
Sent: Wednesday, March 20, 2002 11:38 AM
To: users@httpd.apache.org
Subject: Re: Hung http processes
Probably you have CGI or SSI <#include virtual> or <#exec> or php or
whatever else hanging, not apache itself. On linux, type "ps wfax |
fgrep PID_of_time_consuming_process" and you'll see what is there
On 2002.03.20 19:27 Tony Rosete wrote:
>
> Has anybody out there encountered the problem where httpd processes
> just
> hang? We've noticed that at times httpd jumps to the top of the 'top'
> list
> and never dies while taking a huge chunk of the CPU. There seems to
> be no
> pattern to what starts them, but just a few of them bring the server
> to its
> knees. Anybody encounter this with any form of resolution?
>
---------------------------------------------------------------------
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To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
For additional commands, e-mail: users-help@httpd.apache.org
---------------------------------------------------------------------
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Re: Hung http processes
Posted by Artiom Morozov <ar...@phreaker.net>.
Probably you have CGI or SSI <#include virtual> or <#exec> or php or
whatever else hanging, not apache itself. On linux, type "ps wfax |
fgrep PID_of_time_consuming_process" and you'll see what is there
On 2002.03.20 19:27 Tony Rosete wrote:
>
> Has anybody out there encountered the problem where httpd processes
> just
> hang? We've noticed that at times httpd jumps to the top of the 'top'
> list
> and never dies while taking a huge chunk of the CPU. There seems to
> be no
> pattern to what starts them, but just a few of them bring the server
> to its
> knees. Anybody encounter this with any form of resolution?
>
---------------------------------------------------------------------
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See <URL:http://httpd.apache.org/userslist.html> for more info.
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Re: Hung http processes
Posted by Martin Haase-Thomas <mh...@meome-ag.de>.
Hi,
I really don't want to look arrogant, but to me a hanging process
consuming most of the CPU power points directly to an endless loop
someone has sent it into. Maybe it is your code, and not apache?
Regards
Martin
Tony Rosete wrote:
>Has anybody out there encountered the problem where httpd processes just
>hang? We've noticed that at times httpd jumps to the top of the 'top' list
>and never dies while taking a huge chunk of the CPU. There seems to be no
>pattern to what starts them, but just a few of them bring the server to its
>knees. Anybody encounter this with any form of resolution?
>
>Thanks.
>
>
>
>
>
>
>------------------------------------------------------------------------
>
>---------------------------------------------------------------------
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--
http://www.meome.de
-------------------------------------------------------
Martin Haase-Thomas | Tel.: 030 43730-558
meOme AG | Fax.: 030 43730-555
Software Development | mht@meome-ag.de
-------------------------------------------------------
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RE: Hung http processes
Posted by Tony Rosete <to...@tsgrp.com>.
httpd -l isn't valid on our Linux system. We do have database type calls
that are getting hit. They can be CPU intensive, but they usually spike and
then drop right away. Once or a few times a day we see these rogue httpd
things show up and never go away. I have seen this type of problem on
several newsgroups out there, but so far nothing in terms of a patch or some
way to prevent it without restarting the apache server..
Tony
-----Original Message-----
From: Andrew Hawkes [mailto:ahawkes@unicon.net]
Sent: Wednesday, March 20, 2002 1:07 PM
To: users@httpd.apache.org
Subject: Re: Hung http processes
How about if you provide a list of what modules you are running. Do an
httpd -l to get that. Are you doing anything with dynamic content, like
PHP, CGI's, or anything that has to hit a database or do something CPU
intensive?
-Andy
On Wed, 20 Mar 2002 11:27:57 -0600
"Tony Rosete" <to...@tsgrp.com> wrote:
>
> Has anybody out there encountered the problem where httpd processes just
> hang? We've noticed that at times httpd jumps to the top of the 'top'
> list and never dies while taking a huge chunk of the CPU. There seems
> to be no pattern to what starts them, but just a few of them bring the
> server to its knees. Anybody encounter this with any form of
> resolution?
>
> Thanks.
---------------------------------------------------------------------
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Re: Hung http processes
Posted by Andrew Hawkes <ah...@unicon.net>.
How about if you provide a list of what modules you are running. Do an
httpd -l to get that. Are you doing anything with dynamic content, like
PHP, CGI's, or anything that has to hit a database or do something CPU
intensive?
-Andy
On Wed, 20 Mar 2002 11:27:57 -0600
"Tony Rosete" <to...@tsgrp.com> wrote:
>
> Has anybody out there encountered the problem where httpd processes just
> hang? We've noticed that at times httpd jumps to the top of the 'top'
> list and never dies while taking a huge chunk of the CPU. There seems
> to be no pattern to what starts them, but just a few of them bring the
> server to its knees. Anybody encounter this with any form of
> resolution?
>
> Thanks.
---------------------------------------------------------------------
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See <URL:http://httpd.apache.org/userslist.html> for more info.
To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
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