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Cassandra 3.x High Availability

Cassandra 3.x High Availability

By : Strickland
3.8 (6)
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Cassandra 3.x High Availability

Cassandra 3.x High Availability

3.8 (6)
By: Strickland

Overview of this book

Apache Cassandra is a massively scalable, peer-to-peer database designed for 100 percent uptime, with deployments in the tens of thousands of nodes, all supporting petabytes of data. This book offers a practical insight into building highly available, real-world applications using Apache Cassandra. The book starts with the fundamentals, helping you to understand how Apache Cassandra’s architecture allows it to achieve 100 percent uptime when other systems struggle to do so. You’ll get an excellent understanding of data distribution, replication, and Cassandra’s highly tunable consistency model. Then we take an in-depth look at Cassandra's robust support for multiple data centers, and you’ll see how to scale out a cluster. Next, the book explores the domain of application design, with chapters discussing the native driver and data modeling. Lastly, you’ll find out how to steer clear of common anti-patterns and take advantage of Cassandra’s ability to fail gracefully.
Table of Contents (10 chapters)
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Connecting to the cluster


To get connected, you will start by creating a Cluster reference, which you will then construct using a builder pattern. You will specify each additional option by chaining method calls together to produce the desired configuration, then finally calling the build() method to initialize Cluster.

Let's build a cluster that's initialized with a list of possible initial contact points:

private Cluster cluster; // defined at class level 
// you should only build the cluster once per app 
cluster = Cluster.builder() 
   .addContactPoints("10.10.10.1", "10.10.10.2", "10.10.10.3") 
   .build(); 

Tip

You should only have one instance of Cluster in your application for each physical cluster, as this class controls the list of contact points and key connection policies such as compression, failover, request routing, and retries.

While this basic example will suffice for playing around with the driver locally, the Cluster builder supports a number of additional options that are...

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