Systems and methods are provided for managing a plurality of applications comprising application instances running on a plurality of computer servers. A system for managing application includes an application scheduler. The application scheduler receives at least one policy for managing the applications over the computer servers. The application scheduler also receives usage information indicating performance of the applications and the computer servers. The application scheduler then applies the at least one policy to the usage information to determine whether policy violations exist. The application scheduler then determines and executes a modification action of the applications in response to the policy violation.