Cassandra Tutorial for free
Aarusha
APACHE CASSANDRA TUTORIAL
This tutorial gives you an overview and talks about the fundamentals of Apache Cassandra.
WHY NOSQL AND WHAT IS NOSQL?
The RDBMS has been the de-facto standard for managing data since it first appeared from IBM in the mid-1980s. The RDBMS really exploded in the 1990s with Oracle, Sybase, Microsoft SQL Server, and other similar databases appearing in the data centers of nearly every enterprise – databases you likely use today.
With the first wave of Web applications, open source RDBMS’s such as MySQL and Postgres emerged and became a standard at many companies that desired alternatives to expensive proprietary databases sold by vendors such as Oracle.
However, it wasn’t long before things began to change, and the application and data center requirements of key Internet players like Amazon, Facebook, and Google began to outgrow the RDBMS. The need for more flexible data models that supported agile development methodologies and the requirements to consume large amounts of fast-incoming data from millions of Web and mobile users around the globe – while maintaining extreme amounts of performance and uptime – necessitated the introduction of a new data management platform.
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