Hasthi is a system management framework that allows users to define management logic through rules. It addresses the challenge of enforcing user-defined logic that requires a global view of the system on large-scale distributed systems. Hasthi scales through a distributed manager cloud architecture, a meta-model that provides a summarized global state view, and prioritizing asynchronous and decentralized control. Experiments showed Hasthi could scale to manage over 100,000 resources and 1,000 managers through this approach.

1. ENFORCING USER-DEFINED MANAGEMENT LOGIC IN LARGE SCALE SYSTEMS Srinath Perera, Dennis Gannon Indiana University, Bloomington

5. System Management As a Potential Solution + Role of User Defined Management Logic

7. Approach Scalable Robust Ease of Writing management logic Problems Decentralized control (e.g. DMonA , and Deugo et al .) Highly Yes Hard Hard for users to write rules to achieve emergent behavior Complex Event processing (DREAM) Yes Possible Not Easy Event model has limited Memory Consistent view across managers (e.g. Georgiadis et al. ) No Yes Yes Need ordered reliable multicast – does not scale Hierarchical control with aggregation (Monalisa) Highly Possible Not Easy Lose identity of a single resource due to aggregation Hierarchy with Policies at each level (e. g. WildCat) Yes Possible Possible Policies are not as explicit as rules. State Machine (Dubey et al. ) Yes Possible Not Easy Users have to construct this state machine, which is hard

16. Measurements (Metrics)

26. Questions