Changing the interview engine load balancing algorithm
The interview engine load balancing algorithm tries to ensure that interviews are evenly distributed across computers running the Interviewing Service. If you find that the default algorithm does not suit your requirements you may change it.
For more information about this feature, and examples of load balancing algorithms, see
Load balancing interviewing engines.
To change the load balancing algorithm for distributing interviews
Perform the following steps on each computer running the Interview Service.
1 Make a copy of this file:
[INSTALL_FOLDER]\IBM\SPSS\DataCollection\7\Interviewer Server\Server\defaultload.mrs
2 Edit the copy of the script to implement the type of load balancing you require.
3 Change the registry key:
HKEY_LOCAL_MACHINE\Software\SPSS\mrInterview\3\LoadBalancing\LoadBalancingScript
so that it has the full path to the new script file as its value.
4 Stop and restart IIS. If you are running Windows 2003, you can stop and restart the UNICOM Intelligence Interviewer - Server application pool (usually SPSSmrInterviewPool) rather than restarting IIS if you prefer. This has the advantage of not affecting any other applications that may be using IIS.
See