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Posted to users@httpd.apache.org by Hamma <ha...@planetside-universe.net> on 2003/12/08 20:07:28 UTC
[users@httpd] Optimizing Guide
Does anyone know a good optimizing guide for Apache? My site is becoming fairly high traffic and at times images load very slowly, among other things.
Re: [users@httpd] Optimizing Guide
Posted by Joshua Slive <jo...@slive.ca>.
[Please keep it on the list.]
On Mon, 8 Dec 2003, Patrick O'Neal wrote:
> I thought that, so what is the solution. I figured there must be a
> better way.
>
>
> On Mon, 2003-12-08 at 18:57, Joshua Slive wrote:
> > On Mon, 8 Dec 2003, Patrick O'Neal wrote:
> > >
> > > <Location /server-status>
> > > SetHandler server-status
> > > Order deny,allow
> > > Deny from all < this is the line that I commented out and then it
> > > began to work.
> > > Allow from .mydomain.info
> > > </Location>
> >
> > By commenting out that line, you are allowing everyone in the world to see
> > your /server-status.
Most likely you have a DNS issue. When you do a DNS lookup on your IP
address do you get something in .mydomain.info? It is usually easier to
use an IP address in the Allow line to make things cleaner.
Joshua.
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Re: [users@httpd] Optimizing Guide
Posted by Joshua Slive <jo...@slive.ca>.
On Mon, 8 Dec 2003, Patrick O'Neal wrote:
>
> <Location /server-status>
> SetHandler server-status
> Order deny,allow
> Deny from all < this is the line that I commented out and then it
> began to work.
> Allow from .mydomain.info
> </Location>
By commenting out that line, you are allowing everyone in the world to see
your /server-status.
Joshua.
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Re: [users@httpd] Optimizing Guide
Posted by Hamma <ha...@planetside-universe.net>.
Yea thats what it was, its also what was causing apache to slow down it
seems. I'll have to digup some logrotating scripts heh
----- Original Message -----
From: "Joshua Slive" <jo...@slive.ca>
To: <us...@httpd.apache.org>
Cc: <pa...@oneal.net>
Sent: Monday, December 08, 2003 7:56 PM
Subject: Re: [users@httpd] Optimizing Guide
>
> On Mon, 8 Dec 2003, Hamma wrote:
>
> > Ok.. I found something odd that could be a culprit:
>
> > [Mon Dec 8 18:59:58 2003] [notice] child pid 1986 exit signal File size
> > limit exceeded (25)
> >
> >
> > Repeating over and over again.. what does it mean?
>
> My best guess is that your access_log has exceeded the OS file size limit
> (2GB?). You need to do some log rotation.
>
> Joshua.
>
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Re: [users@httpd] Optimizing Guide
Posted by Joshua Slive <jo...@slive.ca>.
On Mon, 8 Dec 2003, Hamma wrote:
> Ok.. I found something odd that could be a culprit:
> [Mon Dec 8 18:59:58 2003] [notice] child pid 1986 exit signal File size
> limit exceeded (25)
>
>
> Repeating over and over again.. what does it mean?
My best guess is that your access_log has exceeded the OS file size limit
(2GB?). You need to do some log rotation.
Joshua.
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Re: [users@httpd] Optimizing Guide
Posted by Hamma <ha...@planetside-universe.net>.
Ok.. I found something odd that could be a culprit:
[Mon Dec 8 18:59:49 2003] [notice] child pid 1979 exit signal File size
limit exceeded (25)
[Mon Dec 8 18:59:50 2003] [notice] child pid 1980 exit signal File size
limit exceeded (25)
[Mon Dec 8 18:59:54 2003] [notice] child pid 1983 exit signal File size
limit exceeded (25)
[Mon Dec 8 18:59:54 2003] [notice] child pid 1982 exit signal File size
limit exceeded (25)
[Mon Dec 8 18:59:56 2003] [notice] child pid 1985 exit signal File size
limit exceeded (25)
[Mon Dec 8 18:59:58 2003] [notice] child pid 1995 exit signal File size
limit exceeded (25)
[Mon Dec 8 18:59:58 2003] [notice] child pid 1987 exit signal File size
limit exceeded (25)
[Mon Dec 8 18:59:58 2003] [notice] child pid 1986 exit signal File size
limit exceeded (25)
Repeating over and over again.. what does it mean?
----- Original Message -----
From: "Patrick O'Neal" <pa...@oneal.net>
To: <us...@httpd.apache.org>; <ha...@planetside-universe.net>
Sent: Monday, December 08, 2003 6:48 PM
Subject: Re: [users@httpd] Optimizing Guide
> I had that same problem until I looked closer at the directive
> controlling server-status, I had to comment a line out here is what I am
> talking about:
>
> <Location /server-status>
> SetHandler server-status
> Order deny,allow
> Deny from all < this is the line that I commented out and then it
> began to work.
> Allow from .mydomain.info
> </Location>
>
> Patrick O'Neal
> Webmaster
>
> On Mon, 2003-12-08 at 17:42, Hamma wrote:
> > I have enabled server-status but I get a forbidden message no matter
waht,
> > If i change the allow from i get a 404
> > ----- Original Message -----
> > From: "Joshua Slive" <jo...@slive.ca>
> > To: <us...@httpd.apache.org>
> > Sent: Monday, December 08, 2003 5:13 PM
> > Subject: Re: [users@httpd] Optimizing Guide
> >
> >
> > >
> > > On Mon, 8 Dec 2003, Daniel Lopez wrote:
> > >
> > > >
> > > > > I did many of those things already with no big luck, small
improvments
> > > > > but images still seem to take a bit to load.
> > > >
> > > > Can you just serve static images and static content from a
different,
> > > > dedicated server?
> > > > thats what slashdot does for example, having Apache 1.3 to generate
the
> > > > pages and a separate machine for images (it used to be threaded
Apache
> > 2, it
> > > > seems it is Boa nowadays)
> > >
> > > That seems like a premature suggestion. We have absolutely no idea
what
> > > version of apache this guy is using, what kind of load, what his
> > > configuration looks like, where the performance bottleneck is, etc.
> > >
> > > Performance tuning is hard. Without a detailed assessment of what is
> > > going on, any suggestion would be a wild guess.
> > >
> > > I'd start here:
> > > http://httpd.apache.org/docs-2.0/mod/mod_status.html
> > >
> > > Joshua.
> > >
> > > ---------------------------------------------------------------------
> > > The official User-To-User support forum of the Apache HTTP Server
Project.
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> > >
> >
> >
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Project.
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> >
> >
>
>
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Re: [users@httpd] Optimizing Guide
Posted by Patrick O'Neal <pa...@oneal.net>.
I had that same problem until I looked closer at the directive
controlling server-status, I had to comment a line out here is what I am
talking about:
<Location /server-status>
SetHandler server-status
Order deny,allow
Deny from all < this is the line that I commented out and then it
began to work.
Allow from .mydomain.info
</Location>
Patrick O'Neal
Webmaster
On Mon, 2003-12-08 at 17:42, Hamma wrote:
> I have enabled server-status but I get a forbidden message no matter waht,
> If i change the allow from i get a 404
> ----- Original Message -----
> From: "Joshua Slive" <jo...@slive.ca>
> To: <us...@httpd.apache.org>
> Sent: Monday, December 08, 2003 5:13 PM
> Subject: Re: [users@httpd] Optimizing Guide
>
>
> >
> > On Mon, 8 Dec 2003, Daniel Lopez wrote:
> >
> > >
> > > > I did many of those things already with no big luck, small improvments
> > > > but images still seem to take a bit to load.
> > >
> > > Can you just serve static images and static content from a different,
> > > dedicated server?
> > > thats what slashdot does for example, having Apache 1.3 to generate the
> > > pages and a separate machine for images (it used to be threaded Apache
> 2, it
> > > seems it is Boa nowadays)
> >
> > That seems like a premature suggestion. We have absolutely no idea what
> > version of apache this guy is using, what kind of load, what his
> > configuration looks like, where the performance bottleneck is, etc.
> >
> > Performance tuning is hard. Without a detailed assessment of what is
> > going on, any suggestion would be a wild guess.
> >
> > I'd start here:
> > http://httpd.apache.org/docs-2.0/mod/mod_status.html
> >
> > Joshua.
> >
> > ---------------------------------------------------------------------
> > 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
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> > For additional commands, e-mail: users-help@httpd.apache.org
> >
>
>
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>
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Re: [users@httpd] Optimizing Guide
Posted by Hamma <ha...@planetside-universe.net>.
I have enabled server-status but I get a forbidden message no matter waht,
If i change the allow from i get a 404
----- Original Message -----
From: "Joshua Slive" <jo...@slive.ca>
To: <us...@httpd.apache.org>
Sent: Monday, December 08, 2003 5:13 PM
Subject: Re: [users@httpd] Optimizing Guide
>
> On Mon, 8 Dec 2003, Daniel Lopez wrote:
>
> >
> > > I did many of those things already with no big luck, small improvments
> > > but images still seem to take a bit to load.
> >
> > Can you just serve static images and static content from a different,
> > dedicated server?
> > thats what slashdot does for example, having Apache 1.3 to generate the
> > pages and a separate machine for images (it used to be threaded Apache
2, it
> > seems it is Boa nowadays)
>
> That seems like a premature suggestion. We have absolutely no idea what
> version of apache this guy is using, what kind of load, what his
> configuration looks like, where the performance bottleneck is, etc.
>
> Performance tuning is hard. Without a detailed assessment of what is
> going on, any suggestion would be a wild guess.
>
> I'd start here:
> http://httpd.apache.org/docs-2.0/mod/mod_status.html
>
> Joshua.
>
> ---------------------------------------------------------------------
> The official User-To-User support forum of the Apache HTTP Server Project.
> See <URL:http://httpd.apache.org/userslist.html> for more info.
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>
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Re: [users@httpd] Optimizing Guide
Posted by Joshua Slive <jo...@slive.ca>.
On Mon, 8 Dec 2003, Daniel Lopez wrote:
>
> > I did many of those things already with no big luck, small improvments
> > but images still seem to take a bit to load.
>
> Can you just serve static images and static content from a different,
> dedicated server?
> thats what slashdot does for example, having Apache 1.3 to generate the
> pages and a separate machine for images (it used to be threaded Apache 2, it
> seems it is Boa nowadays)
That seems like a premature suggestion. We have absolutely no idea what
version of apache this guy is using, what kind of load, what his
configuration looks like, where the performance bottleneck is, etc.
Performance tuning is hard. Without a detailed assessment of what is
going on, any suggestion would be a wild guess.
I'd start here:
http://httpd.apache.org/docs-2.0/mod/mod_status.html
Joshua.
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Re: [users@httpd] Optimizing Guide
Posted by Daniel Lopez <da...@rawbyte.com>.
> I did many of those things already with no big luck, small improvments but
> images still seem to take a bit to load.
Can you just serve static images and static content from a different,
dedicated server?
thats what slashdot does for example, having Apache 1.3 to generate the
pages and a separate machine for images (it used to be threaded Apache 2, it
seems it is Boa nowadays)
Cheers
Daniel
--
Teach Yourself Apache 2 -- http://apacheworld.org/ty24/
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Re: [users@httpd] Optimizing Guide
Posted by Hamma <ha...@planetside-universe.net>.
I did many of those things already with no big luck, small improvments but
images still seem to take a bit to load.
How do I go about using mod_status ?
----- Original Message -----
From: "Joshua Slive" <jo...@slive.ca>
To: <us...@httpd.apache.org>
Sent: Monday, December 08, 2003 3:28 PM
Subject: Re: [users@httpd] Optimizing Guide
>
>
>
> On Mon, 8 Dec 2003, Hamma wrote:
>
> > Does anyone know a good optimizing guide for Apache? My site is becoming
> > fairly high traffic and at times images load very slowly, among other
> > things.
>
> Start here:
> http://httpd.apache.org/docs-2.0/misc/perf-tuning.html
>
> One good place to start is mod_status to see what is really going on.
> Feel free to come back with more specific questions.
>
> Joshua.
>
> ---------------------------------------------------------------------
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Re: [users@httpd] Optimizing Guide
Posted by Joshua Slive <jo...@slive.ca>.
On Mon, 8 Dec 2003, Hamma wrote:
> Does anyone know a good optimizing guide for Apache? My site is becoming
> fairly high traffic and at times images load very slowly, among other
> things.
Start here:
http://httpd.apache.org/docs-2.0/misc/perf-tuning.html
One good place to start is mod_status to see what is really going on.
Feel free to come back with more specific questions.
Joshua.
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Re: [users@httpd] Server-status analysis
Posted by Joshua Slive <jo...@slive.ca>.
On Tue, 9 Dec 2003, Richard Correia wrote:
> 1> Total accesses: 6633895 => Does this means I have actual 6633895
> GET,POST request to my server in 4 days ?
Yep.
> 2> There are so many .[dots] In ASCII graphic at the end Open slot with
> no current process, I have set MaxClients to 256.
> Why I am getting 8 idle server.
Apache always tries to keep the number of idle servers inbetween
MinSpareServers and MaxSpareServers. Since 8 is between 5 and 20, this
seems fine.
>
> 3> If I am getting 50 hits per second, which are being processed in a
> second, what should be the MinSpareServers and MaxSpareServers ?
> Currently it is 5 and 20 resp.
The Min/MaxSpareServers directives are really not that important. They
only come into play if the server needs to ramp-up or ramp-down quickly
(ie, if the load changes rapidly). Even then, Apache adjusts quite
well regardless. The numbers you have seem just fine.
(The only mistake I see often is people setting MinSpareServers very high.
This just has the effect of forcing lots of idle processes.)
>
> Any help will be highly appriceated. Furthermore any links to document
> which explains this Server process,childs,MinSpareServers and
> MaxSpareServers,Keepalive for bigger sites are most welcome .
http://httpd.apache.org/docs-2.0/misc/perf-tuning.html
http://httpd.apache.org/docs-2.0/mod/prefork.html
As I said, these things are not very important, really. You just need to
make sure you have enough child processes available (MaxClients) to serve
the maximum simultaneous load you expect. Turning down the
KeepAliveTimeout can help push clients off your server more quickly if
they tend to make only a few quick requests.
Joshua.
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[users@httpd] Server-status analysis
Posted by Richard Correia <ri...@ugamsolutions.com>.
Hi,
Here is the server-status for my dear apache server. [I really love it]
I wanted to know what some of the field means in server-status.
1> Total accesses: 6633895 => Does this means I have actual 6633895
GET,POST request to my server in 4 days ?
2> There are so many .[dots] In ASCII graphic at the end Open slot with
no current process, I have set MaxClients to 256.
Why I am getting 8 idle server.
3> If I am getting 50 hits per second, which are being processed in a
second, what should be the MinSpareServers and MaxSpareServers ?
Currently it is 5 and 20 resp.
Any help will be highly appriceated. Furthermore any links to document
which explains this Server process,childs,MinSpareServers and
MaxSpareServers,Keepalive for bigger sites are most welcome .
Sincerely,
Richard
--------------------------------------------------------
Server uptime: 4 days 1 hour 23 minutes 14 seconds
Total accesses: 6633895 - Total Traffic: 2.3 GB
CPU Usage: u2926.43 s2553.78 cu3587.22 cs214.94 - 2.65% CPU load
18.9 requests/sec - 6.8 kB/second - 368 B/request
4 requests currently being processed, 8 idle servers
W___WW_____W....................................................
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Re: [users@httpd] Optimizing Guide
Posted by Patrick O'Neal <pa...@oneal.net>.
The first place to start is in the conf directory of your apache
install, in it you find some sample conf files that give you some
information and then they will point you to another file
/manual/misc/perf-tuning.html
These should give you some help when it comes to fine tuning Apache.
Patrick O'Neal
Webmaster
www.awofm.info
On Mon, 2003-12-08 at 13:07, Hamma wrote:
> Does anyone know a good optimizing guide for Apache? My site is
> becoming fairly high traffic and at times images load very slowly,
> among other things.
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