If this optional parameter is set to non-zero, it specifies the time in seconds for spacing out refresh done by server farm workers. Defaults to not set which causes all farm workers to refresh client list at the same moment. This parameter has only effect when both RefreshPeriod and global FarmSize parameters are configured.

# Reread the client list every hour, use 30 second offset between each worker
RefreshPeriod 3600
FarmWorkerSpacing 30