O'Reilly logo

Cassandra High Availability by Robbie Strickland

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Replication across data centers

In the previous chapters, we touched on the idea that Cassandra can automatically replicate across multiple data centers. There are other systems that allow similar replication; however, the ease of configuration and general robustness set Cassandra apart. Let's take a detailed look at how this works.

Setting the replication factor

You will recall from Chapter 3, Replication, that specifics about replication are configured via CQL at the keyspace level. Since we're on the topic of multiple data centers, it's important to understand that you'll always have to use the NetworkTopologyStrategy, since the SimpleStrategy does not allow you to set replication factor for each data center.

Using our example physical topology ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required