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 the default algorithm does not suit your requirements, you can 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
Complete the following steps on each computer running the Interview Service.
1 Make a copy of the following 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 following registry key so that it has the full path to the new script file as its value:
HKEY_LOCAL_MACHINE\Software\SPSS\mrInterview\3\LoadBalancing\LoadBalancingScript
4 Stop IIS, and then start it again.
If you are running Windows 2003, you can stop and restart the UNICOM Intelligence Interviewer - Server application pool (usually SPSSmrInterviewPool) instead of restarting IIS if you prefer. This method does not affect any other applications that are using IIS.
See