Hydrolix CEO Marty Kagan. (LinkedIn Photo) Hydrolix, a Portland, Ore.-based “streaming data lake” startup that helps companies store and analyze huge volumes of log data, raised $80 million in a Series C round led by QED. What Hydrolix does: The company stores, compresses, and queries huge volumes of log data — everything that happens in a digital system —  in real time. Fintech, media, and e-commerce companies use log data to detect security threats, debug issues, monitor live streams, and more...