I looked for that too and couldn't find it either. This is a very annoying trend. I had the same problem checking out VoltDB. Is this free? What license? What

I looked for that too and couldn't find it either. This is a very annoying trend. I had the same problem checking out VoltDB. Is this free? What license? What price? In the end looking it up on Wikipedia is the fastest way; for MemSQL it states "Proprietary License".