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SUMMARY:Making Geo-Replicated Systems Fast as Possible\, Consistent when N
 ecessary - Allen Clement (MPI)
DTSTART:20121123T140000Z
DTEND:20121123T150000Z
UID:TALK41546@talks.cam.ac.uk
CONTACT:Eiko Yoneki
DESCRIPTION:Online services distribute and replicate state across geograph
 ically diverse data centers and direct user requests to the closest or lea
 st loaded site. While effectively ensuring low latency responses\, this ap
 proach is at odds with maintaining cross-site consistency. This talks pres
 ents RedBlue Consistency. RedBlue consistency enables blue operations to b
 e fast (and eventually consistent) while the remaining red operations are 
 strongly consistent (and slow). To make use of fast operation whenever pos
 sible and only resort to strong consistency when needed\, we identified co
 nditions delineating when operations can be blue and must be red\, and int
 roduced a method that increases the space of potential blue operations by 
 breaking them into separate generator and shadow phases.\n\nBio Author : A
 llen Clement is a faculty member at the Max Planck Institute for Software 
 Systems. His primary interests lie in fault tolerance\, consistency and bu
 ilding robust distributed systems. He obtained his PhD at the University o
 f Texas in 2010\, under the supervision of Lorenzo Alvisi\, working on byz
 antine fault tolerance.\n
LOCATION:FW26\, Computer Laboratory\, William Gates Builiding
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