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Cluster-on-Demand (COD): Virtual Cluster Manager for Efficient Resource Management

Explore the Cluster-on-Demand (COD) system developed by Justin Moore at Duke University. Discover how COD simplifies managing cluster resources, automates configurations, and fosters collaboration. Learn about the benefits, features, and potential applications of COD.

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Cluster-on-Demand (COD): Virtual Cluster Manager for Efficient Resource Management

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  1. Cluster-on-Demand (COD) Justin Moore Duke University

  2. How Big Is It? • 500? 5000? 25,000? • Clusters are growing • Clusters are expensive • Power, A/C, Management … • How to manage {heat, power, failures}? • How to keep everything organized? • How to divide resources?

  3. How Do You Use It? • We’ve got good middleware • Batch queues, Internet Services, research apps … • But customers are very picky • “Linux!” “FreeBSD!” “Windows!” “Minix!” “Minix??” • “I only need it for 30 minutes!!” • Customers != administrators • Contributing to the problem, not the solution • How to share and manage our clusters? “Can’t we all just get along??”

  4. COD: The More the Merrier • Automated framework for resource management • Owners define policies, customers define configs • COD creates, configures dynamic virtual clusters • Isolated, secure collection of nodes • Backed by network storage • Automatic configuration: fast and OS-agnostic • Middleware negotiates allocations with COD • Virtual Cluster Manager: COD-aware layer

  5. Dynamic Virtual Clusters Reserve pool (off-power) DB Ninja Virtual Cluster COD Manager Node reallocation Example: CNN on 9/11 SGE Virtual Cluster

  6. Those Wonderful Toys • Leverage open standards and open source • DHCP, NFS, NIS, XML • Only constraint is that Linux must support hardware • PXELinux-based installer, RHAT/Debian tools • Currently testing working COD prototype • Core of policy-based scheduling engine: CSP-solver • Framework of node requests + allocation negotiation • OS- and filesystem-agnostic installer • Testbed to examine policies and microbenchmarks

  7. COD: Size Doesn’t Matter • Enable management scalability for hosting centers • Hierarchical policy-driven mechanisms • Empower owners and customers Details and paper at http://www.cs.duke.edu/~justin/cod/

  8. Questions?

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