Apache Cassandra & Java
Posted on July 1st, 2014
Caroline George, a Solutions Architect at DataStax
Followed by a lightning talk by Kenneth Scher at BNY Mellon
6/30/2014 @ BNY Mellon, 101 Barclay Street, New York, NY
Caroline George presented the system architecture and query language for Cassandra, a massively scalable NoSQL database. Cassandra is callable from Java and other languages through Cassandra Query Language, an open-source subset of SQL. Much of the presentation was a review of NoSQL databases and why they are different from relational databases: no joins, fast writes, appends that replace record updates, etc. Caroline also emphasized that Cassandra’s architecture is base on nodes that are equal in status which makes the system robust and easily scalable.
Caroline’s slides are available here.
Kenneth Scher presented a brief overview of methods that BNY Mellon uses to monitor the performance of their networks. Their tool, called Dynatrace, creates system statistics and network diagrams of the latencies between databases, servers and user interfaces.