With the emergence of mobile devices constantly connected to the Internet, the nature of user-generated data has changed on most Web 2.0 sites. Today, people produce and share data more often and the lifespan of the data is shorter. Analyzing this data leads to new requirements for analytical systems: real-time processing and database-intensive workloads. Driven by these requirements, we have developed a new system for real-time analytics. Our system extends a key-value store, Cassandra, with push-based processing, transactional task execution, and synchronization. To demonstrate our system, we have built a service to reorganize news sites using real-time feedback from social media.