MongoDB options When you deploy your Meteor server, you need a MONGO_URL that points to your MongoDB database. Either —warning or —critical, or both, may be specified as times, and jobs will be checked for failures withing the specified periods of time before the current time. The option —symlinks is a shorter way of saying —action=rebuild_symlinks The options —include and —exclude can be combined to limit which things are checked, depending on the action. Kadira’s documentation is extensive and invaluable, but we’ll discuss a few key areas here. While monitoring will work with a cluster running a single node, you need a minimum of three monitoring nodes to make monitoring highly available.