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.
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