Book Image

Seven NoSQL Databases in a Week

By : Sudarshan Kadambi, Xun (Brian) Wu
Book Image

Seven NoSQL Databases in a Week

By: Sudarshan Kadambi, Xun (Brian) Wu

Overview of this book

This is the golden age of open source NoSQL databases. With enterprises having to work with large amounts of unstructured data and moving away from expensive monolithic architecture, the adoption of NoSQL databases is rapidly increasing. Being familiar with the popular NoSQL databases and knowing how to use them is a must for budding DBAs and developers. This book introduces you to the different types of NoSQL databases and gets you started with seven of the most popular NoSQL databases used by enterprises today. We start off with a brief overview of what NoSQL databases are, followed by an explanation of why and when to use them. The book then covers the seven most popular databases in each of these categories: MongoDB, Amazon DynamoDB, Redis, HBase, Cassandra, In?uxDB, and Neo4j. The book doesn't go into too much detail about each database but teaches you enough to get started with them. By the end of this book, you will have a thorough understanding of the different NoSQL databases and their functionalities, empowering you to select and use the right database according to your needs.
Table of Contents (16 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
Index

Running Cassandra


With the configuration complete, start up your node.

If you used the Tarball install:

bin/cassandra -p cassandra.pid

Note

It is not recommended to run Cassandra as the root user or as a user with access to sudo. You should create a Cassandra user, and ensure that Cassandra runs as that user instead.

If you used apt-get for the install:

sudo service cassandra start

Cassandra comes with the nodetool utility, which is very useful for performing operational duties, as well as for assessing the health of your node and/or cluster. To verify that your node has started, running a nodetool status should return information on your cluster, based on the gossip information held by the node that you are logged into:

nodetool status

Datacenter: LakesidePark
===============
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns (effective) Host ID Rack
UN 192.168.0.100 1.33 MiB 256 100.0% 954d394b-f96f-473f-ad23-cbe4fd0672c8 R40

See the Using Cassandra section for...