Strata buzzes. Other events go to sleep for long stretches. But Strata+Hadoop World, at least the one in Silicon Valley if not those held in New York and London, is the only event I’ve seen with buzz that comes close to the buzziest of all, the Tableau conference. And like Tableau, Strata is growing. It switched venues this year from the Santa Clara Convention Center to the much bigger San Jose Convention Center, and it still sold out.