The YARN Timeline server
It keeps the information for current and historic applications executed on the YARN cluster. It performs the following two important tasks:
Generic information about the completed applications. It provides the following information for an application:
Queue name
User information
Application attempts
Containers that ran for every application attempt
Containers
Per framework information of running and completed applications:
Application or framework-specific information, such as the number of map reduce tasks for a MapReduce application.
The user published information from client or application master.
To configure and start the YARN Timeline server, you can refer to Chapter 3, Administering a Hadoop-YARN Cluster.
