YARN-2780. Log aggregated resource allocation in rm-appsummary.log. Contributed by Eric Payne
(cherry picked from commit f8aefa5e9c8c6d2817205b5ed8d914db31f56ae7)
YARN-2236. [YARN-1492] Shared Cache uploader service on the Node Manager. (Chris Trezzo and Sanjin Lee via kasha)

(cherry picked from commit a04143039e7fe310d807f40584633096181cfada)
HADOOP-9576. Merging to branch-2.6 for hadoop-2.6.0-rc1.
YARN-2841. Merging to branch-2.6 for hadoop-2.6.0-rc1.
YARN-2843. Merging to branch-2.6 for hadoop-2.6.0-rc1.
YARN-2794. Fixed log messages about distributing system-credentials. Contributed by Jian He.

(cherry picked from commit be7bf956e96dd0fd9b521ca71df9124b9cc5ebd0)
HDFS-7387. Merging to branch-2.6 for hadoop-2.6.0-rc1.