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POHow to detect SqlServer connection leaks in a ASP.net applications?
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copied!<p>I'm currently doing some GUI testing on a ASP.net 2.0 application. The RDBMS is SQL Server 2005. The host is Win Server 2003 / IIS 6.0.</p> <p>I do not have the source code of the application because it was programmed by an external company who's not releasing the code.</p> <p>I've noticed that the application performs well when I restart IIS but after some testing, after I have opened and closed my browser for a couple of hours, the application starts to get slower and slower. I was wondering if this behaviour was due to a bad closing connection practice from the programmers : I'm suspecting an open connection leak on the database here.</p> <p>I guess the .Net garbage collector will eventually close them but... that can take a while, no?</p> <p>I've got SQL Server Management Studio and I do notice from the activity monitor that there are quite a few connections opened on the database.</p> <p>From all that's being said above, here are some questions related to the main question : </p> <ol> <li><p>Is there any way to know in SQL Server 2005 if connections are open because they're waiting to be used in a connection pool or if they're open because they are used by an application?</p></li> <li><p>Does somone know of good online/paper resources where I could learn how to use performance counters or some other kind of tools to help track down these kind of issues?</p></li> <li><p>If performance counters are the best solution, what are the variables that I should watch?</p></li> </ol>

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