I know that redis really wants to be a persistent kvstore. I had a problem with a large website when I increased caching by 2 orders of magnitude (enough RAM t

I know that redis really wants to be a persistent kvstore. I had a problem with a large website when I increased caching by 2 orders of magnitude (enough RAM to play with). When it came time to write a snapshot to disk, everything died for 5 minutes. Turned it off and haven't thought about it since. I'm not sure I'll ever shed my RDBMS predelections.