Book Image

YARN Essentials

By : Fasale, Nirmal Kumar
Book Image

YARN Essentials

By: Fasale, Nirmal Kumar

Overview of this book

If you have a working knowledge of Hadoop 1.x but want to start afresh with YARN, this book is ideal for you. You will be able to install and administer a YARN cluster and also discover the configuration settings to fine-tune your cluster both in terms of performance and scalability. This book will help you develop, deploy, and run multiple applications/frameworks on the same shared YARN cluster.
Table of Contents (12 chapters)
Free Chapter
1
1. Need for YARN
9
9. YARN – Alternative Solutions
11
Index

Web interfaces of the Ecosystem

It's all about the Hadoop and YARN setup and configurations and commanding over Hadoop and YARN. Here are some web interfaces used by Hadoop and YARN administrators for admin tasks:

Web interfaces of the Ecosystem

The URL for the NameNode is http://<namenode_host>:<port>/ and the default HTTP port is 50070.

The URL for the ResourceManager is http://<resourcermanager_host>:<port>/ and the default HTTP port is 8088. TheWeb UI for the NameNode can be seen as follows:

Web interfaces of the Ecosystem

The URL for the MapReduce JobHistory Server is http://<jobhistoryserver_host>:<port>/ and the default HTTP port is 19888.