HARC: the highly-available resource co-allocator

摘要: HARC--the Highly-Available Resource Co-allocator--is an open-source system for reserving multiple resources in a coordinated fashion. HARC can handle different types of resource, and has been used to reserve time on supercomputers across US-wide testbed, together with dedicated lightpaths connecting the machines. At HARC's core are distributed set processes called Acceptors, which provide coallocation service. functions normally provided majority Acceptors working; this replication gives its high availability. The Paxos Commit protocol ensures that consistency all is maintained. This paper overview HARC, explains both how it works used. We show design makes easy community contribute new components co-allocating while stability overall