Distributed Key Stores: Roll your own!
Leonard Lin has some interesting notes on distributed key stores. He implemented a distributed key store for a client based on Tokyo Cabinet and a consistent hashing scheme to distribute data.
The really interesting part of this though, is that he had a look at a lot of the available options (admittedly on a pretty tight schedule) and his conclusion is that, given the maturity of the options available you could probably write your own in a day.
I'm pretty interested in retrying some of this evaluation with our own data. I'm not sure how the numbers will compare given that we're doing inverted indexing on the text in the items that we're storing, but it will be interesting to find out!
