Ten Questions to Consider Before Choosing Cassandra

  1. Do you know what your queries will look like ? In traditional SQL you design your data model to represent your business objects. Your queries can then evolve over time and can be ad-hoc. You can even create views, materialized or otherwise, to facilitate even more complex analytical queries. Cassandra does not offer … Continue reading Ten Questions to Consider Before Choosing Cassandra

We Need a Cloud Version of Cassandra

Google recently launched Cloud BigTable - a cloud NoSQL service that is compatible with Apache HBase API. What this means is that an existing ecosystem of Hadoop applications is immediately binary-compatible with this new service and it doesn't require any changes to the API. Google is not only marketing this as an alternative to Hadoop, … Continue reading We Need a Cloud Version of Cassandra

Apple is (or was) the Biggest User of Apache Cassandra

One thing I did not realize about Cassandra is that Apple is (or was) one of the biggest Cassandra users out there: Word in Goldmacher's circles is that Apple will be “replacing” its huge Cassandra noSQL implementation with FoundationDB. Apple uses Cassandra for “iMessage, iTunes passwords, a bunch of stuff,” he says. In fact, Apple … Continue reading Apple is (or was) the Biggest User of Apache Cassandra

Trying to Replace Cassandra with DynamoDB ? Not so fast

In November last year I pointed out how tempted I was to replace Cassandra with DynamoDB. Since then I have done some research and things are not as straightforward as they may seem at first. I'd like to revisit my post and clarify a few things. On elasticity of Cassandra I said the following: Scaling … Continue reading Trying to Replace Cassandra with DynamoDB ? Not so fast

Why I am Tempted to Replace Cassandra With DynamoDB

I have written about Cassandra in the past. I have been using Cassandra actively for the past three years, and I am one of the big advocates of technology out there. However, as I have pointed in this blog and on my Twitter page - if you plan on scaling Cassandra out, be prepared to … Continue reading Why I am Tempted to Replace Cassandra With DynamoDB

Cassandra: a key puzzle piece in a design for failure

When building out a data center in the cloud (AWS in particular) Cassandra can play a crucial role in the design for failure. SQL and NoSQL databases have drastically different redundancy profiles: A NoSQL database (and I hate the term NoSQL with the passion of a billion white hot suns) trades off data consistency for … Continue reading Cassandra: a key puzzle piece in a design for failure

Things I wish Apache Cassandra was better at

At first I wanted to name this article “My personal list of grievances against Apache Cassandra”, but I decided to take a more positive approach. Only Java developers need apply Surely you can use Cassandra with non-Java clients but the reality is that administering and maintaining Cassandra itself requires very significant knowledge of Java and … Continue reading Things I wish Apache Cassandra was better at