This document summarizes Jean Georges Perrin's notes from attending the 2017 Spark Summit. Some key points include: - The Summit had nearly 3000 attendees across 11 tracks and 50 sponsors. Significant growth was seen in the Spark community. - Spark 2.2 announcements focused on new features like a cost-based optimizer, structured streaming, and easier Python support. - Databricks announced new contributions around deep learning and streaming performance. - Sessions covered topics like machine learning as a service, natural language processing with Spark, and using Spark with GPUs/FPGAs. - Takeaways highlighted the performance improvements in Spark 2.2, and that analytics on GPUs/FPGAs is an emerging