![【hadoop2.6.0】一句话形容mapreduce 【hadoop2.6.0】一句话形容mapreduce](https://image.shishitao.com:8440/aHR0cHM6Ly9ia3FzaW1nLmlrYWZhbi5jb20vdXBsb2FkL2NoYXRncHQtcy5wbmc%2FIQ%3D%3D.png?!?w=700&webp=1)
网上看到的:
We want to count all the books in the library. You count up shelf #1, I count up shelf #2. That's map. The more people we get, the faster it goes.
我们要数图书馆中的所有书。你数1号书架,我数2号书架。这就是“Map”。我们人越多,数书就更快。
Now we get together and add our individual counts. That's reduce.
现在我们到一起,把所有人的统计数加在一起。这就是“Reduce”。