#MQTT never was a specification for distributed messaging. Its origins date back to when a server was one server with one CPU. Modern brokers like VerneMQ offer distributed messaging, but there are always #Distsys decisions & tradeoffs.
A fascinating topic to us! :)

I got nerdsniped by @tef & @sushee to demonstrate how relatively easy it is to build a CRAQ (https://timilearning.com/posts/mit-6.824/lecture-9-craq/) system atop @couchdb — Showing that as much as CouchDB is a distributed database in itself, it is also a very nice toolkit to build other kinds of distributed databases with it :)

The demo is in Node.js with some private JS/HTTP API glue that is not relevant to the demo: https://gist.github.com/janl/d0ba3544631e054e59fbd5f4d3ee96f8

Let me know if you ahave any questions.

#CouchDB #DistSys #Databases #NoSQL #CRAQ

I just published https://github.com/lant/maelstrom-java in the central maven repository.

This project is a simple java wrapper over the Maelstrom distributed system workbench. (https://github.com/jepsen-io/maelstrom)

If you want to play with Maelstrom using JVM languages, this library will hopefully take away the pain of writing tons of boilerplate.

#distsys

#introduction

Hey everyone, I'm a Computer Programmer from Pune, India.

My tech interests are #CommonLisp #Rakulang #distsys #databases #openbsd #linux

Also interested in lot of other random things which I may discuss over here.

Some of my favourite animals include cephalopods, fish.

I've just moved accounts over from mastodon.social.

I just completed challenge 3 (a-e) and I've got some nice code that works but I'm not happy with it. I'm also not happy with the grading mechanism being number of messages not size of messages. I feel like I've cheated.

The challenge is to keep X number of nodes in sync with these numeric broadcast messages that go to random nodes, so it with network partitions and do it without flooding your network. Eventual consistency.

#distsys

:pika: Unison: A new approach to
Distributed programming
— @unison #Unison #FunctionalProgramming #DistSys #Distributed
https://www.unison-lang.org/

Btw you can always send me an email (DM if you don't know) pick my brain for a chat about #eventsourcing #dotnet, #rest or #distsys via:

https://cal.com/alexzeitler

“Tokyo Electric Power Company's (TEPCO) worried that training for severe accidents might suggest the possibility of severe accidents.”

―Japan: The Paradox of Harmony. 2014
#Fukushima #FaultTolerance #DistSys

“Tokyo Electric Power Company's (TEPCO) worried that training for severe accidents might suggest the possibility of severe accidents.”

―Japan: The Paradox of Harmony. 2014
#Fukushima #FaultTolerance #DistSys

How Paxos and Two-Phase Commit Differ
— @predrag
#Distsys #DistributedSystems #Paxos
https://predr.ag/blog/paxos-vs-2pc/?utm_source=pocket_mylist

Follow-up poll w.r.t. unique identifier generation in distributed systems... What other properties of the identifiers are important to you?

#distsys

Your preferred method for generating unique identifiers in a medium to large distributed system?

#uuid
#ULID
#snowflakeid
#hashids
#nanoid
#distsys

#bookmark https://github.com/aphyr/distsys-class
Aphyr's #distsys summary.