如何将Resque作业锁定到一台服务器

I have a "cluster" of Resque servers in my infrastructure. They all have the same exact job priorities etc. I automagically scale the number of Resque servers up and down based on how many pending jobs there are and available resources on the servers to handle said jobs. I always have a minimum of two Resque servers up. I have a "cluster" of Resque servers in my infr