What do you understand by Cassandra?

It is a NoSQL based technology which is highly selected by the users and customers. This company is run by Apache. Cassandra is so popular because it is very capable to store and manage huge data without any loss or damages. It is written in Java. The most amazing feature of Cassandra is that it has no chance of failure. Cassandra is the mixture of the key-value store and column-oriented where Key-value represents the external chamber for an application while column represents the keyspace thing.