一. 先看下官方对NSNotification通知的解释 1. NSNotification 通知 @interface NSNotification : NSObject <NSCopying, NSCoding> 接口通知,继承NSObject,实现NSCopying,NSCoding协议 A container for information broadcast through a notification center to all registered observers. 通过通知
http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-common/yarn-default.xml 3.0.0 yarn.scheduler.minimum-allocation-mb 1024 The minimum allocation for every container request at the RM in MBs. Memory requests lower than this will be set to