Like many startups, Coursera began its data storage journey with MySQL, a familiar and industry-proven database. As Coursera's user base grew from several thousand to many millions, we found that MySQL provided limited availability and restricted our ability to scale easily. New product initiatives and requirements provided a perfect opportunity to revisit our choice of core workhorse database.

Social media has become the new frontier for cyber-attackers. The explosive growth of this new communications platform, combined with the potential to reach millions of people through a single post, has provided a low barrier for exploitation. In this talk, we will focus on how Cassandra is used to enable our fight against bad actors on social media.

This session will illustrate how to tackle these challenges by taking advantage of both Cassandra and Microsoft's next generation PaaS infrastructure called Azure Service Fabric.

Our product presents an aggregated view of metadata collected for billions of objects (files, emails, sharepoint objects etc.). We used Cassandra to store those billions of objects along with aggregated view of that metadata.

Cassandra is commonly perceived as a write heavy NOSQL database. However at TeleStax, Cassandra is used for even read operations!

Learn how Capital One is using Cassandra to report operational data internally and optimize business decisions.

The graph database, TitanDB, with Cassandra as its backing store, provides a powerful platform for modeling and extracting insights from the connected world of today's internet of things.

In 2014, with the launch of Call of Duty: Advanced Warfare, Activision released a system for messaging its users with highly personalized and contextually relevant communications designed to enhance the user experience and deepen user engagement. Now, in year two, the system is being extended to serve all Activision titles and to deliver these experiences in reaction to player behaviors.

After more than a year of development, we present Monacella, a relational object database that uses Cassandra as the datastore. In this talk we'll examine the architecture of Monacella, its features and use cases, and plans for future development.

At BlackRock, we use Apache Cassandra in a variety of ways to help power our Aladdin investment management platform. In this talk I will give an overview of our use of Cassandra, with an emphasis on how we manage multi-tenancy in our Cassandra infrastructure.