KeyDB CEO Interview: Getting into YC with a Fork of Redis

• KeyDB

  24 10,780 8.4 C++

  A Multithreaded Fork of Redis

  

I went through the wiki, certainly it was interesting. I believe the implementation is at fastlock.cpp [0], I will go through it. You said earlier:

> If we spin too long the thread will sleep although we wait much longer than any other lock you’ll find.

Did you do any tweaks to mitigate this?

> Generally speaking you don't want to be dealing with this stuff unless you really have to.

Ofcourse. I am just way too curious and excited to learn about these!

[0] - https://github.com/EQ-Alpha/KeyDB/blob/v6.0.16/src/fastlock....

• mini-redis

  13 3,562 5.5 Rust

  Incomplete Redis client and server implementation using Tokio - for learning purposes only

  

Tokio async runtime for Rust has a tutorial in its user guide https://tokio.rs/tokio/tutorial on writing a mini-redis (https://github.com/tokio-rs/mini-redis).

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• memKeyDB

  1 75 0.0 C

  MemKeyDB is a fork of Redis, adjusted to store objects on both Intel Optane Persistent Memory and DRAM.

  

• edis

  2 468 0.0 Erlang

  An Erlang implementation of Redis

We (me and some folks at my old consultancy) wrote an Erlang version of Redis (https://github.com/cbd/edis) for some of the same reasons - multithreading changes some of the scaling semantics in interesting ways. It was mostly for fun but ended up in some real projects as a simple REDIS protocol implementation front-end where the backend could be replaced with whatever the implementor wants.

• raids

  2 4 6.1 C++

  Cache distribution services: http, websock, redis, memcached

  

https://github.com/raitechnology/raids/.

If you go to the landing page of the above, scroll down to the bottom, there is a TCP bypass solution graphed, using Solarflare Open Onload and it is capable of running several times as fast as the Linux Kernel TCP. I didn't test Redis with Open Onload, but I'm pretty sure you'll get a similar results since TCP is a major performance bottleneck in Redis as well.

• Tendis

  8 2,836 8.2 C++

  Tendis is a high-performance distributed storage system fully compatible with the Redis protocol.

  

Does anyone have any experience with these other Redis clones? I need to write a benchmark on these someday (the outline for the blog post is already written), but have restricted my yak shaving recently:

- https://github.com/Tencent/Tendis

- https://github.com/Netflix/dynomite

On a separate note, is FLASH supposed to be an acronym? I can't tell if they're referring to flash storage (SSD, NVMe) or they're referring to perhaps a special algorithm that uses flash storage +/- some other features, or some altogether proprietary hardware.

• dynomite

  3 4,164 0.0 C

  A generic dynamo implementation for different k-v storage engines

  

Does anyone have any experience with these other Redis clones? I need to write a benchmark on these someday (the outline for the blog post is already written), but have restricted my yak shaving recently:

- https://github.com/Tencent/Tendis

- https://github.com/Netflix/dynomite

On a separate note, is FLASH supposed to be an acronym? I can't tell if they're referring to flash storage (SSD, NVMe) or they're referring to perhaps a special algorithm that uses flash storage +/- some other features, or some altogether proprietary hardware.

• SaaSHub

  www.saashub.com featured

  SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

  

• SSDB

  14 8,133 0.0 C++

  SSDB - A fast NoSQL database, an alternative to Redis

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