YARN-2188. [YARN-1492] Client service for cache manager. (Chris Trezzo and Sangjin Lee via kasha)
Revert "MAPREDUCE-5785. Derive heap size or mapreduce.*.memory.mb automatically. (Gera Shegalov and Karthik Kambatla via kasha)"

This reverts commit a4df9eed059977374c8e889cb85d79e8e514ad30.