OSCON was a blast! I can't compare it to other conventions since it's my first, but the organization was a very well-oiled machine and it really allowed everyone - exhibitors and visitors alike - to really focus on the heart of this event: Open Source. Being invited by GitHub (thanks Jono, Brian and the whole team), we were located in a pretty central booth at the Open Source Alley, where we had to handle a lot of traffic (but that's cool, we're Varnish, we know how to handle that).
Heading into this summer, based only on the things we know will happen, we are likely to see the most web-traffic-intensive summer and fall ever with one major sports or political event happening after the other: European Championship Football is taking place in France in June and July, the Summer Olympic Games in Rio de Janeiro take place in August, and also during the summer, the US political party conventions, which officially name each party’s nominee, take place - to be followed later in the year by the US presidential election itself - probably one of the more dramatic ones in recent history.
Microservices emerged as a pattern some years ago. Initially it was an even fuzzier and more vague pattern than what it is today. One of Varnish Cache’s earliest supporters, Amedia, decided to redesign their infrastructure and went for a microservice pattern. They did something a bit different from what most others have done. They decided to stick Varnish in the middle of their microservices. Instead of having the microservices talk directly to each other they would connect them to Varnish and Varnish would proxy the connections.