In Greek mythology, Calliope (/kəˈlaɪ.əpiː/ kə-ly-ə-pee; Ancient Greek: Καλλιόπη Kalliopē "beautiful-voiced") was the muse of epic poetry. Calliope was the daughter of Zeus and Mnemosyne, and is believed she was the muse of the poet Homer who inspired the Odyssey and the Iliad.
Calliope is the bridge between Cassandra and Spark that allows us to create fast real-time data apps with ease. Calliope is a library that provides an interface to consume Cassandra data into Spark and vice versa; and to store Spark Resilient Distributed Datasets into Cassandra. As we saw, we can use Spark on Cassandra without Calliope, but Calliope make it all easier.
Calliope was started by Tuplejump Inc in 2013, when there was no other solution available to work with Cassandra Data in Spark. In 2014 Tuplejump worked on the core stabilization while Calliope was adopted and deployed at many organizations.