Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Learning Hbase

You're reading from   Learning Hbase Learn the fundamentals of HBase administration and development with the help of real-time scenarios

Arrow left icon
Product type Paperback
Published in Nov 2014
Publisher
ISBN-13 9781783985944
Length 326 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
Shashwat Shriparv Shashwat Shriparv
Author Profile Icon Shashwat Shriparv
Shashwat Shriparv
Arrow right icon
View More author details
Toc

Table of Contents (12) Chapters Close

Preface 1. Understanding the HBase Ecosystem FREE CHAPTER 2. Let's Begin with HBase 3. Let's Start Building It 4. Optimizing the HBase/Hadoop Cluster 5. The Storage, Structure Layout, and Data Model of HBase 6. HBase Cluster Maintenance and Troubleshooting 7. Scripting in HBase 8. Coding HBase in Java 9. Advance Coding in Java for HBase 10. HBase Use Cases Index

Some advance topics in brief

In this section, we will discuss some advanced topics useful for developers that will enable them to interact with HBase more closely.

Coprocessors

Coprocessors are similar to Linux kernel modules. They provide a way to run server-level code against locally stored data. This provides a very powerful functionality. It runs in the process on each RegionServer. All the regions contain references to the coprocessor implementation classes associated. It can be loaded either from local JAR files on the RegionServer class path or through the HDFS class loader. These are not designed to be used by the users of HBase but by developers who add additional functionalities to HBase. These can be used for server-side operations such as region splits, major compactions, and client-side operations such as create, read, update, and delete operations, and also can be used to implement a custom use case such as user-defined functionalities.

Types of coprocessors

The following are...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €18.99/month. Cancel anytime