ADO.NET

Monitoring Connection Pooling

To monitor your application's use of connection pooling, you can use the Profiler tool that ships with SQL Server, or the Performance Monitor tool that ships with the Microsoft Windows® 2000 operating system. 


To monitor connection pooling with SQL Server Profiler
  1. Click Start, point to Programs, point to Microsoft SQL Server, and then click Profiler to start Profiler.
  2. On the File menu, point to New, and then click Trace.
  3. Supply connection details, and then click OK.
  4. In the Trace Properties dialog box, click the Events tab.
  5. In the Selected event classes list, ensure that the Audit Login and Audit Logout events are shown beneath Security Audit. To make the trace clearer, remove all other events from the list.
  6. Click Run to start the trace. You will see Audit Login events when connections are established and Audit Logout events when connections are closed.
To monitor connection pooling with Performance Monitor
  1. Click Start, point to Programs, point to Administrative Tools, and then click Performance to start Performance Monitor.
  2. Right-click the graph background, and then click Add Counters.
  3. In the Performance object drop-down list, click SQL Server: General Statistics.
  4. In the list that appears, click User Connections.
  5. Click Add, and then click Close.

Managing Security


Although database connection pooling improves the overall scalability of your application, it means you can no longer manage security at the database. This is because to support connection pooling, the connection strings must be identical. If you need to track database operations on a per user basis, consider adding a parameter through which you can pass the user identity and manually log user actions in the database. You need to add this parameter to each operation.
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