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Garnet: A faster cache store drop in replacement for Redis
(www.microsoft.com)
GitHub: https://github.com/microsoft/garnet
Just saw this today and I am pretty stoked. It's just a drop in replacement and performs > 10x faster under workloads with many client connections. Not that I found redis slow, but in Enterprise workloads that's a lot of money saved. $50k Garnet clusters handling similar workloads for $5k would be significant.
It being essentially entirely written in C# makes it pretty easy to read, understand, contribe to, and extend. Custom functions in C# have a pretty low barrier to entry.
I get that there's probably going to be a lot of hate just because this is released by Microsoft developers.... But in my opinion the C# ecosystem is one of the best to build on.
They changed the licensing: https://redis.com/blog/redis-adopts-dual-source-available-licensing/