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

Full shutdown backup using distcp


distcp (distributed copy) is a tool provided by Hadoop for copying a large dataset on the same, or different HDFS cluster. It uses MapReduce to copy files in parallel, handle error and recovery, and report the job status.

As HBase stores all its files, including system files on HDFS, we can simply use distcp to copy the HBase directory to either another directory on the same HDFS, or to a different HDFS, for backing up the source HBase cluster.

Note that this is a full shutdown backup solution. The distcp tool works because the HBase cluster is shut down (or all tables are disabled) and there are no edits to files during the process. Do not use distcp on a live HBase cluster. Therefore, this solution is for the environment that can tolerate a periodic full shutdown of their HBase cluster. For example, a cluster that is used for backend batch processing and not serving frontend requests.

We will describe how to use distcp to back up a fully shut down HBase...