Ishai Menache

Network-Aware Scheduling for Data-Parallel Jobs: Plan When You Can

By: 
Virajith Jalaparti, Peter Bodik, Ishai Menache, Sriram Rao, Konstantin Makarychev, Matthew Caesar
Appears in: 
CCR August 2015

To reduce the impact of network congestion on big data jobs, cluster management frameworks use various heuristics to schedule compute tasks and/or network flows. Most of these schedulers consider the job input data fixed and greedily schedule the tasks and flows that are ready to run. However, a large fraction of production jobs are recurring with predictable characteristics, which allows us to plan ahead for them.

Calendaring for wide area networks

By: 
Srikanth Kandula, Ishai Menache, Roy Schwartz, Spandana Raj Babbula
Appears in: 
CCR August 2014

Datacenter WAN traffic consists of high priority transfers that have to be carried as soon as they arrive, alongside large transfers with preassigned deadlines on their completion. The ability to offer guarantees to large transfers is crucial for business needs and impacts overall cost-of-business. State-of-the-art traffic engineering solutions only consider the current time epoch or minimize maximum utilization and hence cannot provide pre-facto promises to long-lived transfers.

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