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A little known story about how @paulg, writing a comment in the newborn Hacker News, inspired the creation of Redis. At some point he wrote that in certain Lisp programs he wrote there was this pattern of just storing data in memory, logging on disk what it was stored in memory.
When the application would be restarted, reading back the log would recreate the in memory data structures. I thought that it was cool, and that databases themselves could be that way instead of using the programming language data structures without a networked API.
However I quickly forgot about this idea and continued with my stuff. At some point a year or so later I was facing with a very write heavy application, and at that point it made sense to try doing exactly that. Ideas exchange is a key part of building things.
