Ranked in these QuestionsQuestion Ranking
Pro Highly available cluster
Once setup database is set up, it becomes highly available without any downtime.
Pro Highly scalable
Cassandra is very scalable and achieves the highest throughput for the maximum number of nodes compared to other alternatives. Unfortunately this also brings rather high write and read latencies.
Pro Familiar to developers used to SQL
The query language that Cassandra uses (CQL) is similar to SQL even though it's a NoSQL database.
Pro Rapid writing and lightning-fast reading
After measuring the read/write performance values on one server, you can simply calculate how many more servers you should add to the cluster to reach the required performance levels, and scale easily.
Con No JOINS
Cassandra has no support for JOINS.