What is Cassandra DB used for?

Related questions

1. Is Dynamodb based on Cassandra?
2. Is Cassandra DB free?
3. What is datacenter in Cassandra?
4. How does Cassandra write data?
5. Is Kafka push or pull?
6. What is Kafka in simple words?
7. Is Cassandra column based?
8. Why do we need RabbitMQ?
9. What is AWS Cassandra?
10. How replication works in Cassandra?

Tags

1. #performance
2. #designed
3. #point
4. #distributed
5. #nosql
6. #amounts
7. #cassandra
8. #commodity
9. #handle
10. #apache
11. #highly
12. #availability
13. #scalable
14. #servers
15. #failure
16. #single
17. #providing
18. #database
19. #introduction
20. #across
21. #large