Krishna Sankar has a ☞ great summary of a recent talk of Google’s Jeff Dean on Google’s systems and infrastructure: An interesting set of statistics of MapReduce over time: MapReduce at Google, now at 4 million jobs; processing ~1000 PB with 130 PB intermediate data and 45 PB outputData has doubled while the number of machines have been constant from ‘07 to ‘10.Machine usage has quadrupled while t
![Google: A Study in Scalability, MapReduce Evolution](https://cdn-ak-scissors.b.st-hatena.com/image/square/5dccd0617f65f04e01679ebba751d4dc17d20b26/height=288;version=1;width=512/https%3A%2F%2F64.media.tumblr.com%2F63e0eae481663921988d8340a9b7caa2%2Fc8d1d6494a4bdca9-28%2Fs500x750%2F16ce0aba3d123a046d836d60bea25d2e4f2e1b00.jpg)