August 2015
Intermediate to advanced
278 pages
5h 54m
English
Content preview from Learning YARNBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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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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