Co-allocation of Compute and Network resources using HARC
نویسنده
چکیده
HARC—the Highly-Available Resource Co-allocator—is a system for reserving multiple resources in a coordinated fashion. HARC can handle multiple types of resource, and has been used to reserve time on supercomputers distributed across a nationwide testbed in the United States, together with dedicated lightpaths connecting the machines. HARC makes these multiple allocations in a single atomic step; if any resource is not available as required, then nothing is reserved. To achieve this “all or nothing” behavior, HARC treats the allocation process as a Transaction, and uses a phased commit protocol. The Paxos Commit protocol to ensure that there is no single point of failure in the system, which, if correctly deployed, has a very long Mean Time To Failure.
منابع مشابه
HARC: The Highly-Available Resource Co-allocator
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 a US-wide testbed, together with dedicated lightpaths connecting the machines. At HARC’s core are a distributed set of processes called Acceptors, which provide ...
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