Book Image

HBase Administration Cookbook

By : Yifeng Jiang
Book Image

HBase Administration Cookbook

By: Yifeng Jiang

Overview of this book

As an Open Source distributed big data store, HBase scales to billions of rows, with millions of columns and sits on top of the clusters of commodity machines. If you are looking for a way to store and access a huge amount of data in real-time, then look no further than HBase.HBase Administration Cookbook provides practical examples and simple step-by-step instructions for you to administrate HBase with ease. The recipes cover a wide range of processes for managing a fully distributed, highly available HBase cluster on the cloud. Working with such a huge amount of data means that an organized and manageable process is key and this book will help you to achieve that.The recipes in this practical cookbook start from setting up a fully distributed HBase cluster and moving data into it. You will learn how to use all of the tools for day-to-day administration tasks as well as for efficiently managing and monitoring the cluster to achieve the best performance possible. Understanding the relationship between Hadoop and HBase will allow you to get the best out of HBase so the book will show you how to set up Hadoop clusters, configure Hadoop to cooperate with HBase, and tune its performance.
Table of Contents (16 chapters)
HBase Administration Cookbook
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface

Showing the disk utilization of HBase tables


In this recipe, we will show the answer to the following simple question:

How much space is HBase or a single HBase table using on HDFS?

It is a really simple task, but you might need to answer this question frequently. We will give you a tip to make it a bit easier.

Getting ready

Start your HBase cluster and log in to your HBase client node. We assume your HBase root directory on HDFS is /hbase.

How to do it...

The instructions to show the disk utilization of HBase tables are as follows:

  1. 1. Show the disk utilization for all HBase objects by executing the following command:

    $ $HADOOP_HOME/bin/hadoop fs -dus /hbase
    hdfs://master1:8020/hbase 1016842660
    
  2. 2. Show the disk utilization of a particular HBase table (hly_temp) by executing the following command:

    $ $HADOOP_HOME/bin/hadoop fs -dus /hbase/hly_temp
    hdfs://master1:8020/hbase/hly_temp 54738763
    
  3. 3. Show a list of the regions of an HBase table and their disk utilization, by executing the following command...