HP Integrity NonStop H-Series - Manual (Page 177)

calls. The first request is always routed to an NSJSP instance through TS/MP using Pathsend
calls. TS/MP determines the least loaded instance of NSJSP and routes the request to it.
Subsequent requests from the web client are either routed to a particular instance of NSJSP
through file system calls or are sent to an instance of NSJSP through TS/MP using Pathsend
calls.
For more information on Pathsend calls, see the HP NonStop TS/MP Pathsend and Server
Programming Manual.
4. The Axis2/Java application, which is an instance of NSJSP, processes the request and performs
validations based on user interface. If the request is for a database operation it connects to
SQL/MX database using JDBC.
5. Axis2/Java prepares the response.
6. The response is forwarded by the Axis2/Java application back to the NSJSP and iTP
Webserver, to be displayed to the user.
NOTE: Because JDBC Type 2 is a dynamic-link library (DLL), it is loaded as a part of the
Axis2/Java application process. However, when the JDBC Type 4 driver is used, the JDBC process
runs as a separate process external to the Axis2/Java application process.
Message Flow in an Axis2/Java Application on NonStop 177