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Hadoop 2.x Administration Cookbook

You're reading from Hadoop 2.x Administration Cookbook Administer and maintain large Apache Hadoop clusters

Product type Paperback

Published in May 2017

Publisher Packt

ISBN-13 9781787126732

Length 348 pages

Edition 1st Edition

Tools

Hadoop

Concepts

System Administration

Author (1):

Aman Singh

View More author details

Table of Contents (14) Chapters

Preface

1. Hadoop Architecture and Deployment FREE CHAPTER

2. Maintaining Hadoop Cluster HDFS

3. Maintaining Hadoop Cluster – YARN and MapReduce

4. High Availability

5. Schedulers

6. Backup and Recovery

7. Data Ingestion and Workflow

8. Performance Tuning

9. HBase Administration

10. Cluster Planning

11. Troubleshooting, Diagnostics, and Best Practices

12. Security

Index

HBase troubleshooting

In this recipe, we will look at HBase troubleshooting and how to identify some of the common issues in the HBase cluster.

Getting ready

Make sure that the user has completed the Setting up multi-node HBase cluster recipe in Chapter 9, HBase Administration for this section, and the assumption is that HDFS and YARN are working fine. Refer to previous recipes to troubleshoot any issues with the Hadoop cluster, before starting troubleshooting of HBase.

How to do it...

Connect to the master1.cyrus.com master node and switch to user hadoop.
Firstly, make sure ZooKeeper is up and the ensemble is healthy, as shown in the following screenshot — this is only if an external ZooKeeper is used:
Rather than starting the entire cluster in one go, start each component one-by-one. Start hbase master using the following command:
```
$ hbase-daemon.sh start master
```
Quickly check which nodes and services the HBase master is talking to. In the following screenshot, we can see connections to...

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Authors (1)

Aman Singh

Aman Singh

Gurmukh Singh is a seasoned technology professional with 14+ years of industry experience in infrastructure design, distributed systems, performance optimization, and networks. He has worked in big data domain for the last 5 years and provides consultancy and training on various technologies. He has worked with companies such as HP, JP Morgan, and Yahoo. He has authored Monitoring Hadoop by Packt Publishing

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