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So the central piece of data is something like a 10 million element RDD of (UserId, (MovieId, Rating))? If so, it sounds like that data would fit into a single
by iskander 12y ago
So the central piece of data is something like a 10 million element RDD of (UserId, (MovieId, Rating))? If so, it sounds like that data would fit into a single in-memory sparse array, how does Spark's performance compare with a local implementation?
By comparison, I'm trying (and failing) to work with RDDs of 100+ billion elements.
- platz 12y agoWhat is the difference between Spark and Storm? They both seem like "realtime compute engines" *edit - from what I can see Spark is a replacement for hadoop (offline jobs), where Storm deals with online stream processing
- ironchef 12y agoStorm is generally more of a dataflow "per event" real/near time computation system (with each event flowing through N spouts and bolts) whereas Spark is more of an in-memory data processing system (with Spark streaming being the "equivalent" to the storm system).