Knoldus organized a KnolX session on Friday, 07 October 2016. In that session, we had an introductory session on Apache Cassandra.
Cassandra is a distributed database which allows us to store data on multiple nodes with multiple replicas in such a way that even if a node goes down, another node can take charge of that node.
The slides for the session are as follows:
And, the youtube video link is as follows: