In the tree component select the Configurations node.
Select the instance to configure:
Select the Thread Pools node.
Under Current Pools select the name of the thread pool to be changed.
Enter the minimum number of threads in the thread pool servicing requests in this queue in the Minimum Thread Pool Size field.
These threads are created up front when this thread pool is instantiated.
Enter the maximum number of threads in the thread pool servicing requests in this queue in the Maximum Thread Pool Size field.
This is the upper limit on the number of threads that exist in the thread pool.
Restart the Application Server.