Pieces of the puzzle
Wednesday, March 09, 2011
12:29 PM
Pieces of the puzzle so far
Google AppEngine/GWTJ: a platform for cloud computing. 
Map/Reduce: a core technology of cloud computing. 
Google Map/Reduce
closed system
real-time queries 
Can specify custom map operations (slowly).
Only one kind of reduce (collect).
Hadoop Map/Reduce
Open system
Specify map/combine/reduce operations. 
Not real-time. 
Requires another piece to expose data. 