Deploying OpenStack

Scheduler

There are many choices for your scheduler. As stated earlier, this is a conceptually simple, but vitally important part of your deployment. The scheduler places instances (virtual servers) onto specific compute hosts. While this may not be vitally important if you only have one or two compute nodes, it is absolutely critical once you start to grow. Most installations will start with the simple scheduler and then write their own scheduler as they grow. If writing your own scheduler is not feasible for your installation, the next version of Nova (“Diablo”) will feature more choices.