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Posted to users@httpd.apache.org by ricardo13 <ri...@gmail.com> on 2009/10/24 19:10:43 UTC
[users@httpd] Apache's strange
hi,
I'm doing some tests with reverse proxy in Apache Web Server.
I use HTTPERF to stress the server.
I imagine that load (requests/seg) increase consequently the response time
also increase.
But this doesn't happen.
At one point, the values of response time stabilize and dont increase.
My doubt's, Has Apache a control of overload ???
Is there any component that does not allow the server into overload ?
Ricardo
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Re: [users@httpd] Apache's strange
Posted by ricardo13 <ri...@gmail.com>.
&-(
I've read documentation. I imagined that you could forget this information.
But, I forgive you
Ricardo
Tom Evans-3 wrote:
>
> On Tue, 2009-10-27 at 10:35 -0700, ricardo13 wrote:
>> I thought that discovered what was stabilizing Apache
>>
>> I wrote in httpd.conf:
>> MaxClient 4000
>>
>> My question's, What value do I assign the value to unlimited MaxClient
>> ??? 0
>> ??
>>
>> Ricardo
>>
>>
>
> There is this wonderful thing called the internet. On the internet they
> have wonderful things called manuals. Here is the apache manual
> homepage:
>
> http://httpd.apache.org/docs/2.2/
>
> You can see there is a link there called 'Directive Quick-Reference'.
> Follow this link, and there is a quick reference for _every_ directive!
> Crazy! If you click on the 'M' in the index, you can even see the
> reference for MaxClients!
>
> http://httpd.apache.org/docs/2.2/mod/mpm_common.html#maxclients
>
> Free information - crazy! It doesn't even require a subscription!
>
> Tom
>
>
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Re: [users@httpd] Apache's strange
Posted by Tom Evans <te...@googlemail.com>.
On Tue, 2009-10-27 at 10:35 -0700, ricardo13 wrote:
> I thought that discovered what was stabilizing Apache
>
> I wrote in httpd.conf:
> MaxClient 4000
>
> My question's, What value do I assign the value to unlimited MaxClient ??? 0
> ??
>
> Ricardo
>
>
There is this wonderful thing called the internet. On the internet they
have wonderful things called manuals. Here is the apache manual
homepage:
http://httpd.apache.org/docs/2.2/
You can see there is a link there called 'Directive Quick-Reference'.
Follow this link, and there is a quick reference for _every_ directive!
Crazy! If you click on the 'M' in the index, you can even see the
reference for MaxClients!
http://httpd.apache.org/docs/2.2/mod/mpm_common.html#maxclients
Free information - crazy! It doesn't even require a subscription!
Tom
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RE: [users@httpd] Apache's strange
Posted by ricardo13 <ri...@gmail.com>.
Ok !!!
I've written 20000 to MaxClient and ServerLimit.
Now, I hope that is "unlimited" or at least with maximum value.
At night I'll test Apache and analyze your behavior.
Ricardo
Berube, Steve (HP Software) wrote:
>
> I'm not sure you can truly have an unlimited number
> Based on this:
> http://httpd.apache.org/docs/2.2/mod/mpm_common.html
>
> MaxClients is based on ServerLimit which is hardcoded at 20000
>
>
> -----Original Message-----
> From: ricardo13 [mailto:ricardoogrande@gmail.com]
> Sent: Tuesday, October 27, 2009 1:36 PM
> To: users@httpd.apache.org
> Subject: Re: [users@httpd] Apache's strange
>
>
> I thought that discovered what was stabilizing Apache
>
> I wrote in httpd.conf:
> MaxClient 4000
>
> My question's, What value do I assign the value to unlimited MaxClient ???
> 0
> ??
>
> Ricardo
>
>
> Eric Covener wrote:
>>
>> On Sat, Oct 24, 2009 at 1:10 PM, ricardo13 <ri...@gmail.com>
>> wrote:
>>>
>>> hi,
>>>
>>> I'm doing some tests with reverse proxy in Apache Web Server.
>>> I use HTTPERF to stress the server.
>>>
>>> I imagine that load (requests/seg) increase consequently the response
>>> time
>>> also increase.
>>> But this doesn't happen.
>>>
>>> At one point, the values of response time stabilize and dont increase.
>>
>> You have to drive it until there isn't enough request procesing
>> threads, CPU, disk IO, or bandwidth to go around. Are you measuring
>> any of those?
>>
>> --
>> Eric Covener
>> covener@gmail.com
>>
>> ---------------------------------------------------------------------
>> The official User-To-User support forum of the Apache HTTP Server
>> Project.
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>>
>>
>>
>
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> View this message in context:
> http://www.nabble.com/Apache%27s-strange-tp26041076p26081920.html
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> Nabble.com.
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>
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RE: [users@httpd] Apache's strange
Posted by "Berube, Steve (HP Software)" <st...@hp.com>.
I'm not sure you can truly have an unlimited number
Based on this:
http://httpd.apache.org/docs/2.2/mod/mpm_common.html
MaxClients is based on ServerLimit which is hardcoded at 20000
-----Original Message-----
From: ricardo13 [mailto:ricardoogrande@gmail.com]
Sent: Tuesday, October 27, 2009 1:36 PM
To: users@httpd.apache.org
Subject: Re: [users@httpd] Apache's strange
I thought that discovered what was stabilizing Apache
I wrote in httpd.conf:
MaxClient 4000
My question's, What value do I assign the value to unlimited MaxClient ??? 0
??
Ricardo
Eric Covener wrote:
>
> On Sat, Oct 24, 2009 at 1:10 PM, ricardo13 <ri...@gmail.com>
> wrote:
>>
>> hi,
>>
>> I'm doing some tests with reverse proxy in Apache Web Server.
>> I use HTTPERF to stress the server.
>>
>> I imagine that load (requests/seg) increase consequently the response
>> time
>> also increase.
>> But this doesn't happen.
>>
>> At one point, the values of response time stabilize and dont increase.
>
> You have to drive it until there isn't enough request procesing
> threads, CPU, disk IO, or bandwidth to go around. Are you measuring
> any of those?
>
> --
> Eric Covener
> covener@gmail.com
>
> ---------------------------------------------------------------------
> 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] Apache's strange
Posted by ricardo13 <ri...@gmail.com>.
I thought that discovered what was stabilizing Apache
I wrote in httpd.conf:
MaxClient 4000
My question's, What value do I assign the value to unlimited MaxClient ??? 0
??
Ricardo
Eric Covener wrote:
>
> On Sat, Oct 24, 2009 at 1:10 PM, ricardo13 <ri...@gmail.com>
> wrote:
>>
>> hi,
>>
>> I'm doing some tests with reverse proxy in Apache Web Server.
>> I use HTTPERF to stress the server.
>>
>> I imagine that load (requests/seg) increase consequently the response
>> time
>> also increase.
>> But this doesn't happen.
>>
>> At one point, the values of response time stabilize and dont increase.
>
> You have to drive it until there isn't enough request procesing
> threads, CPU, disk IO, or bandwidth to go around. Are you measuring
> any of those?
>
> --
> Eric Covener
> covener@gmail.com
>
> ---------------------------------------------------------------------
> 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] Apache's strange
Posted by ricardo13 <ri...@gmail.com>.
I'm not.
But If components (CPU, disk IO, ...) are overloaded the value of response
time increases and not stabilize.
For example:
req/s = 500 ----> 1.23 seconds
req/s = 1000 ----> 2.44 seconds
req/s = 1500 ----> 5.78 seconds
req/s = 2000 ----> 10.5 seconds
req/s = 3000 ----> 17.5 seconds
req/s = 4000 ----> 39 seconds
Here, it's happen this:
req/s = 500 ----> 1.23 seconds
req/s = 1000 ----> 2.44 seconds
req/s = 1500 ----> 5.78 seconds
req/s = 2000 ----> 4.77 seconds
req/s = 3000 ----> 6.15 seconds
req/s = 4000 ----> 5.5 seconds
Very stranger !!
What's happen ??
Ricardo
But I dont thought that components (CPU, disk IO) can be .
Because my machines have good perfomance (Core 2 Quad, 4GB RAM, network
1GB/s).
Ricardo
Eric Covener wrote:
>
> On Sat, Oct 24, 2009 at 1:10 PM, ricardo13 <ri...@gmail.com>
> wrote:
>>
>> hi,
>>
>> I'm doing some tests with reverse proxy in Apache Web Server.
>> I use HTTPERF to stress the server.
>>
>> I imagine that load (requests/seg) increase consequently the response
>> time
>> also increase.
>> But this doesn't happen.
>>
>> At one point, the values of response time stabilize and dont increase.
>
> You have to drive it until there isn't enough request procesing
> threads, CPU, disk IO, or bandwidth to go around. Are you measuring
> any of those?
>
> --
> Eric Covener
> covener@gmail.com
>
> ---------------------------------------------------------------------
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>
>
>
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Re: [users@httpd] Apache's strange
Posted by Eric Covener <co...@gmail.com>.
On Sat, Oct 24, 2009 at 1:10 PM, ricardo13 <ri...@gmail.com> wrote:
>
> hi,
>
> I'm doing some tests with reverse proxy in Apache Web Server.
> I use HTTPERF to stress the server.
>
> I imagine that load (requests/seg) increase consequently the response time
> also increase.
> But this doesn't happen.
>
> At one point, the values of response time stabilize and dont increase.
You have to drive it until there isn't enough request procesing
threads, CPU, disk IO, or bandwidth to go around. Are you measuring
any of those?
--
Eric Covener
covener@gmail.com
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