In this episode of Disseminate, we welcome Harry Gavrilidis back to the podcast to explore his latest research on fast and scalable data transfer across systems, soon to be presented at SIGMOD 2025. Building on his work with XDB, Harry introduces XDBC, a novel data transfer framework designed to balance performance and generalizability. They dive into the challenges of moving data across heterogeneous environments—ranging from cloud systems to IoT devices—and critique the limitations of current generic methods like JDBC and specialized point-to-point connectors.

Harry walks us through the architecture of XDBC, which modularizes the data transfer pipeline into configurable stages like reading, serialization, compression, and networking. The episode highlights how this architecture adapts to varying performance constraints and introduces a cost-based optimizer to automate tuning for different environments. We also touch on future directions, including dynamic reconfiguration, fault tolerance, and learning-based optimizations. If you're interested in systems, performance engineering, or database interoperability, this episode is a must-listen.

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