this is the second post documenting my adventures writing jdb. jdb is a distributed key-value store written in python. i took on this project to a) learn more about distributed databases and b) get better at writing python. the first post on cluster membership and implementing a gossip protocol can be found here.


working on jdb has provided me with an opportunity to not only deepen my understanding of distributed programming in a multi-node environment, but also in a local, multi-threaded environment. …


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one of my favorite topics of extracurricular reading over the past year has been distributed systems, specifically as they relate to database technologies and peer-to-peer networks.

some additional time at home due to the COVID-19 pandemic provided me with an opportunity to exercise a bit of healthy(?) and productive escapism in which i attempted to improve my understanding in this area by writing a distributed database from scratch.

this first post outlines the gossip protocol i implemented to keep node peer lists up to date throughout the cluster.

code is available here:


jdb is entirely decentralized, meaning each node…


software engineer @ facebook

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