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Re:Yahoo Open Sources S4 Real-Time MapReduce Framework by DanielRibeiro on Wednesday November 03, 2010 @04:22PM (#1866331)
Seems very much like Percolator from google: http://www.infoq.com/news/2010/10/google-percolator
Re:Yahoo Open Sources S4 Real-Time MapReduce Framework by schumihan on Wednesday November 03, 2010 @10:22PM (#1867355)
I don't think so. Percolator does not support stream operators, and it supports transaction semantic. Streaming process engine like s4 will never handle the race conditions brought by multiple writers.