如果英文好的话建议直接看官网:http://hadoop.apache.org/docs... 这句话应该可以解答你的疑问了:Previously this was supported purely for MapReduce jobs by the Application History Server. With the introduction of the timeline server, the Application History Server becomes just one use of the Timeline Server. historyserver所完成的功能只是timeline server的一部分而已。
本质上的区别吗?具体能做什