"Hadoop" Hadoop MR performance optimization combiner mechanism

1. Concept

2. References

Improve the MapReduce job Efficiency Note II of Hadoop (use combiner as much as possible): Http://sishuo (k). com/forum/blogpost/list/5829.html

Hadoop Learning notes -8.combiner and custom Combiner:http://www.tuicool.com/articles/qazujav

Hadoop in-depth learning: combiner:http://blog.csdn.net/cnbird2008/article/details/23788233

(mean Scene) 0Hadoop using combiner to improve Map/reduce program efficiency: http://blog.csdn.net/jokes000/article/details/7072963

"Hadoop" Hadoop MR performance optimization combiner mechanism