The End of Slow Networks: It's Time for a Redesign
, Brown University
Date: Thursday, April 23, 2015
Time: 4:00 PM to 5:00 PM Note: all times are in the Eastern Time Zone
Refreshments: 3:45 PM
Host: Samuel Madden, CSAIL, MIT
Contact: Sheila M. Marian, 617-253-1996, email@example.com
Speaker URL: None
TALK: The End of Slow Networks: It's Time for a Redesign
Abstract: Next generation high-performance RDMA-capable networks will require a fundamental rethinking of the design and architecture of modern distributed DBMSs. These systems are commonly designed and optimized under the assumption that the network is the bottleneck: the network is slow and "thin", and thus needs to be avoided as much as possible. Yet this assumption no longer holds true. With InfiniBand FDR 4x, the bandwidth available to transfer data across network is in the same ballpark as the bandwidth of one memory channel, and it increases even further with the most recent EDR standard. Moreover, with the increasing advances of RDMA, the latency improves similarly fast.
In this talk, I will first argue that the ``old'' distributed database design is not capable of taking full advantage of the network. Second, I will propose architectural redesigns for OLTP, OLAP and advanced analytical frameworks to take better advantage of the improved bandwidth, latency and RDMA capabilities. Finally, for each of the workload categories, I show that remarkable performance improvements can be achieved.
Created by Sheila M. Marian at Thursday, April 23, 2015 at 9:37 AM.