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Hbase Essentials

Hbase Essentials

By : Garg
3.5 (2)
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Hbase Essentials

Hbase Essentials

3.5 (2)
By: Garg

Overview of this book

This book is intended for developers and Big Data engineers who want to know all about HBase at a hands-on level. For in-depth understanding, it would be helpful to have a bit of familiarity with HDFS and MapReduce programming concepts with no prior experience with HBase or similar technologies. This book is also for Big Data enthusiasts and database developers who have worked with other NoSQL databases and now want to explore HBase as another futuristic, scalable database solution in the Big Data space.
Table of Contents (9 chapters)
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Preface
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Free Chapter
1
1. Introducing HBase
1. Introducing HBase
The world of Big Data
The origin of HBase
Use cases of HBase
Installing HBase
Understanding HBase cluster components
Summary
2
2. Defining the Schema
2. Defining the Schema
Data modeling in HBase
Designing tables
Accessing HBase
Summary
3
3. Advanced Data Modeling
3. Advanced Data Modeling
Understanding keys
HBase table scans
Implementing filters
Summary
4
4. The HBase Architecture
4. The HBase Architecture
Data storage
Data replication
Securing HBase
HBase and MapReduce
Summary
5
5. The HBase Advanced API
5. The HBase Advanced API
Counters
Coprocessors
The administrative API
Summary
6
6. HBase Clients
6. HBase Clients
The HBase shell
Kundera – object mapper
REST clients
The Thrift client
The Hadoop ecosystem client
Summary
7
7. HBase Administration
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7. HBase Administration
Cluster management
Cluster monitoring
Performance tuning
Troubleshooting
Summary
8
Index
Index

Cluster management

HBase is a Hadoop-based, highly available, distributed NoSQL database. In a production environment, an HBase cluster is quite responsive to node failures but there are many administration jobs that are performed by the cluster administrator. This job list includes important tasks such as starting or stopping the cluster, upgrading the OS on the nodes, replacing bad hardware, and backing up data. Also, these jobs need to be done properly to keep the cluster running smoothly. Under this section, we will be covering the details of these cluster management tasks.

The Start/stop HBase cluster

Starting or stopping an HBase cluster is a very common task that is performed by any administrator; any kind of configuration change for tuning is a very common scenario. The dependent systems such as HDFS and ZooKeeper are assumed to be running before HBase starts/stops. Apache HBase provides the following script files under the $HBASE_HOME/bin directory to be used for the start/stop operation...

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