Connection has nothing to do with session. A session lives across
several connections to server. Are you trying to prevent 2 different
user from logging in at the same time? This is an application specific
issue and should be handled, probably using an HttpSessionListener. It's
not the tomcat's job.

A connection is something that last for a few milli seconds. A session
is something that id identified by a SessionId and live for a long as it
is used. The sessions get destroyed after a certain amount of idle time
(usually 30 minutes).

An no, there is no way for a web server to count the number of web
browser who have a page opened on your server. You can count the
session, but this count include browser that have closed less than 30
minutes ago.

En l'instant précis du 01/19/07 14:04, Frankbl s'exprimait en ces termes:
> ok. i know. nothing will be work is not correct.
> i mean. i can allways connect 4 until 6 times at the same time. I have not
> tested more. i have open 3 session on my local pc with localhost and 3
> session on a remote pc with the ip address.
>
> what i need is. that i can only connect with localhost or ip address with 2
> sessions. My application open two browser windows allways. for me this is 2
> connection and only 1 sessions at the same time. the first browser window
> shows only the company banner. from here i start the second browser window
> with my sesseion where i work. Here i get my session no.
>
> The application is a local installation on a pc for running a spareparts
> catalogue. here we have the same layout and funcitionality as our Web
> server.
>
>
> The application comes from a external company and i'am serv this here by us.
> i'am not the big profi with tomcat and that's my problem.  At first i have
> ask the external company. but he has no reason. i must pay when we wont
> this. 
> i would rather spend the time for lern more about tomcat and to give better
> service to our customer.
>
> ok, at last. I have try the parameter maxkeepaliverequest. But the same. i
> can connect with the same result as before.
>
> Frank
>
>
>
>
> David Delbecq wrote:
>   
>> Can you describe with more details the "nothing will work" and your
>> intended behaviour. Explain how you tested configuration. According to
>> your configuration, the connector should work like this:
>>
>> 1) Serves exactly one request at a time (maxProcessors).
>> 2) When another connection is attempted and your Http Thread is already
>> serving another request, it will queue that request and serve it later
>> (queue has a size of acceptCount)
>> 3) If there is a third simultaneous connection attempt (the first being
>> served, the second waiting to be served), the server will refuse it (It
>> will behave to client as if server was down!!).
>>
>> There is also the problem of 'keepAlive' request that might interfer in
>> your case, try to add |maxKeepAliveRequests="1"
>>
>> Last but not least, limiting tomcat to 1 connection will behave
>> erratically in the browser's view, browsers tend to open several
>> connections at a time to same server, to get pictures, css, favicon in
>> parallel.
>>
>> |En l'instant précis du 01/19/07 10:32, Frankbl s'exprimait en ces termes:
>>     
>>> I will limited the connection for tomcat to one. I have tryed any
>>> configuration with the connector in server.xml. but nothing will work.
>>> Can anyone say what i must do to get the right parameters. here my last
>>> configuration string.
>>>
>>> <Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
>>> port="8080"
>>> maxThreads="1" minSpareThreads="1" maxSpareThreads="1" minProcessors="1"
>>> maxProcessors="1" enableLookups="false" acceptCount="1" debug="0"
>>> connectionTimeout="20000" useURIValidationHack="false"/>
>>>
>>> Thanks for your help.
>>>
>>> Frank
>>>
>>>   
>>>       
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>>
>>     
>
>   


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