Request count increases drastically in tomcat 6.0.29

[rujin raj <ru...@gmail.com>]

Hi,

I am using an application in tomcat 6.0.29 and the java version is 1.6
 64 bit. I am facing the problem in my application when the request
count is more(this i am watching through Lambda probe).

Please give me some idea why this request count is keeps increasing
and how to destroy the idle requests.Herewith i attached the
screenshot of that application

--rujin

Re: Request count increases drastically in tomcat 6.0.29

[André Warnier <aw...@ice-sa.com>]

rujin raj wrote:
> MArk,
> 
> Its request count
> 
> Screen shot attached.
> 
> --rujin
> On 17/11/2010, Mark Thomas <ma...@apache.org> wrote:
>> On 17/11/2010 06:45, rujin raj wrote:
>>> Hi,
>>>
>>> I am using an application in tomcat 6.0.29 and the java version is 1.6
>>>  64 bit. I am facing the problem in my application when the request
>>> count is more(this i am watching through Lambda probe).
>>>
>>> Please give me some idea why this request count is keeps increasing
>>> and how to destroy the idle requests.Herewith i attached the
>>> screenshot of that application

************************************
>> The list strips attachments.       <=========== *****
************************************

>>
>> Do you really mean request count or do you actually mean thread count?
>>
>> Mark
>>
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>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
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> 
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Re: Request count increases drastically in tomcat 6.0.29

[André Warnier <aw...@ice-sa.com>]

Hi.

Again, I do not know LambdaProbe and I don't know precisely how it names things.
But what I believe is this :

 > http-443
 > Current thread count: 1149 Current threads busy: 1148 Max threads: 3000 Max
 > spare threads: 0 Min spare threads: 0 Max time (ms): 896953 Processing time
 > (ms): 166070125 *Request count: 148736* Error count: 527 Received: 687Kb
 > Sent: 143Mb


The "Request count" which you see there is probably a cumulative count of all the requests 
that Tomcat has already processed (or received) so far, since the time it was started.
If so, then it is normal that this number will always go up, and never go down.

What is more striking here, are the threads counts : the above says that Tomcat currently 
has 1149 threads started, and that all of them are busy.
To me it looks like either your server is too small for the load, or your application is 
too slow to respond.

Even if you told Tomcat that it can start a maximum of 3000 threads, that does not mean 
that it will do so.  It may not have enough memory available to do it.

How much RAM does your server have, and how much of it is being used ? (for a quick check, 
use the Windows Task Manager).

It may also be your back-end database system which is slow in responding, and keeping the 
threads busy.

Anyway, as per the information above, there are no "idle threads".  That explains why 
additional users would be rejected : your server is just too busy to answer them.
You need a bigger boat.


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Re: Request count increases drastically in tomcat 6.0.29

[Pid <pi...@pidster.com>]

On 17/11/2010 13:51, rujin raj wrote:
> s it the normal for any application to keeps increasing the request count.

Yes, if either the number of users is increasing, or you are counting
cumulative requests.


p

Re: Request count increases drastically in tomcat 6.0.29

[rujin raj <ru...@gmail.com>]

Warnier,

Herewith I given the details:

http-443
Current thread count: 1149 Current threads busy: 1148 Max threads: 3000 Max
spare threads: 0 Min spare threads: 0 Max time (ms): 896953 Processing time
(ms): 166070125 *Request count: 148736* Error count: 527 Received: 687Kb
Sent: 143Mb

Tomcat Version: Tomcat 6.0.29
Java:1.6.0 64 bit version
Os: Windows 2008 Enterprise edition 64 bit

The problem is when the request count is less the users can able to login
and submit the forms without delay.Meantime request time keeps increasing
and they are not able to login into application and submission of forms also
taking long time and finally page is expired.We set the session timeout as
30 min.Then we are forced to restart the tomcat to come to normal
condition.We are using the Oracle database.

Is it the normal for any application to keeps increasing the request count.
Is there any way to recycle this request count in my tomcat application
server?


--rujin

On 17 November 2010 17:41, André Warnier <aw...@ice-sa.com> wrote:

> Rujin,
>
> as it is phrased, your message is not very clear.
> It is probably a question of language or terminology.
> I don't know how LambdaProbe displays the information, but
>
> - a "request" is what the browser sends to Tomcat (like "GET /index.jsp")
> - when Tomcat receives the request, it selects an idle thread to process
> the request
> - while processing the request, the thread is no longer idle, it is working
> - the thread produces the response and sends it back to the client
> - then the thread becomes idle again, ready to process another request
>
> So, an "idle request" seems to be a contradiction in terms.
> Please explain better what you mean.
>
> And the list strips attachments, so sending screenshots does not help.
>
>
> rujin raj wrote:
>
>> MArk,
>>
>> Its request count
>>
>> Screen shot attached.
>>
>> --rujin
>> On 17/11/2010, Mark Thomas <ma...@apache.org> wrote:
>>
>>> On 17/11/2010 06:45, rujin raj wrote:
>>>
>>>> Hi,
>>>>
>>>> I am using an application in tomcat 6.0.29 and the java version is 1.6
>>>>  64 bit. I am facing the problem in my application when the request
>>>> count is more(this i am watching through Lambda probe).
>>>>
>>>> Please give me some idea why this request count is keeps increasing
>>>> and how to destroy the idle requests.Herewith i attached the
>>>> screenshot of that application
>>>>
>>> The list strips attachments.
>>>
>>> Do you really mean request count or do you actually mean thread count?
>>>
>>> Mark
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>>
>>>
>>
>> ------------------------------------------------------------------------
>>
>>
>>
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>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>
>
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> For additional commands, e-mail: users-help@tomcat.apache.org
>
>

Re: Request count increases drastically in tomcat 6.0.29

[André Warnier <aw...@ice-sa.com>]

Rujin,

as it is phrased, your message is not very clear.
It is probably a question of language or terminology.
I don't know how LambdaProbe displays the information, but

- a "request" is what the browser sends to Tomcat (like "GET /index.jsp")
- when Tomcat receives the request, it selects an idle thread to process the request
- while processing the request, the thread is no longer idle, it is working
- the thread produces the response and sends it back to the client
- then the thread becomes idle again, ready to process another request

So, an "idle request" seems to be a contradiction in terms.
Please explain better what you mean.

And the list strips attachments, so sending screenshots does not help.


rujin raj wrote:
> MArk,
> 
> Its request count
> 
> Screen shot attached.
> 
> --rujin
> On 17/11/2010, Mark Thomas <ma...@apache.org> wrote:
>> On 17/11/2010 06:45, rujin raj wrote:
>>> Hi,
>>>
>>> I am using an application in tomcat 6.0.29 and the java version is 1.6
>>>  64 bit. I am facing the problem in my application when the request
>>> count is more(this i am watching through Lambda probe).
>>>
>>> Please give me some idea why this request count is keeps increasing
>>> and how to destroy the idle requests.Herewith i attached the
>>> screenshot of that application
>> The list strips attachments.
>>
>> Do you really mean request count or do you actually mean thread count?
>>
>> Mark
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>
> 
> 
> ------------------------------------------------------------------------
> 
> 
> ---------------------------------------------------------------------
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Re: Request count increases drastically in tomcat 6.0.29

[rujin raj <ru...@gmail.com>]

MArk,

Its request count

Screen shot attached.

--rujin
On 17/11/2010, Mark Thomas <ma...@apache.org> wrote:
> On 17/11/2010 06:45, rujin raj wrote:
>> Hi,
>>
>> I am using an application in tomcat 6.0.29 and the java version is 1.6
>>  64 bit. I am facing the problem in my application when the request
>> count is more(this i am watching through Lambda probe).
>>
>> Please give me some idea why this request count is keeps increasing
>> and how to destroy the idle requests.Herewith i attached the
>> screenshot of that application
>
> The list strips attachments.
>
> Do you really mean request count or do you actually mean thread count?
>
> Mark
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>

Re: Request count increases drastically in tomcat 6.0.29

[Mark Thomas <ma...@apache.org>]

On 17/11/2010 06:45, rujin raj wrote:
> Hi,
> 
> I am using an application in tomcat 6.0.29 and the java version is 1.6
>  64 bit. I am facing the problem in my application when the request
> count is more(this i am watching through Lambda probe).
> 
> Please give me some idea why this request count is keeps increasing
> and how to destroy the idle requests.Herewith i attached the
> screenshot of that application

The list strips attachments.

Do you really mean request count or do you actually mean thread count?

Mark

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