Load balancing is a feature of the SAS Object Spawner that balances workloads across SAS server processes and across server machines. If you need to troubleshoot load balancing problems or need to get more information about how requests are being distributed, it is helpful to turn on additional logging.

Steps to enable Load Balancing logging for the SAS Object Spawner

1. Modify the SAS Object Spawner's logconfig.xml file.

   This file should be located at: .../Lev1/ObjectSpawner/logconfig.xml

2. Add the following logger to the logconfig.xml file:

    <!-- Monitor Load Balancing - IOM Load Balancing message logger -->
    <logger name="IOM.LoadBalancing">
       <level value="Trace"/>
    </logger>
   

Add the above logger under the following logger:

 <logger name="IOM">
    <level value="Info" /> 
 </logger>

3. Restart your SAS Object Spawner to activate the change.

4. The SAS Object Spawner log file will contain COST messages that provide information about Load Balancing.

1. SAS Usage Note 34114 provides information about Creating a detailed SAS^® Stored Process Server log.
   
2. The SAS Stored Process Server log file will contain COST messages that provide information about Load Balancing.

Operating System and Release Information