Hi All, First post. I am returning to web development after a period of 2 1/2 years. I have the requirements for a project which are as follows. The application is for a Bank, the number of users concurrently hitting the DB is 3000 and it would be using Struts/Hibernate/MDB/SQL Server 2005 with an App server I want to ask you the following questions. Would appreciate any points/URL's from your end 1. What is the ideal connection pool size that I should specify in the configuration file 2. Any Best practices for implementing connection pools 3. If I do want to have a transaction that involves MDB and DB updates, how should I link them up 4. Any other best practices/Do's and Don’ts for Struts/Hibernate/MDB/SQL Server 2005 would also help. Cheers, Amit

Any Best practices for implementing connection pools

Why do you want to implement the connection pool your self? Better use an opensource connection pool like C3p0 or DBCP. hibernate has support for most of them. SN jsptube