ra
horde
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| ra | horde | |
|---|---|---|
| 7 | 5 | |
| 777 | 1,246 | |
| 1.3% | - | |
| 8.9 | 5.8 | |
| 5 days ago | 15 days ago | |
| Erlang | Elixir | |
| GNU General Public License v3.0 or later | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
ra
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The Erlang Runtime System
Erlang/OTP doesn't handle leader election, and by itself is bad at handling netsplits.
There is https://github.com/rabbitmq/ra which is a Raft implementation in Erlang that is Jepsen-tested. You could use it to build "etcd in Erlang", or https://github.com/rabbitmq/khepri which is built on top of Ra.
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Ask HN: Good examples of fault-tolerant Erlang code?
Just to add to this, there are some implementations of things like consensus algorithms in Erlang such as Ra: https://github.com/rabbitmq/ra
- Elixir at Ramp
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An Animated Introduction to Elixir
You may find these interesting...
- "The Onion Layer Theory" https://learnyousomeerlang.com/building-applications-with-ot...
- "On Erlang, State and Crashes" http://jlouisramblings.blogspot.com/2010/11/on-erlang-state-...
- "Why Restarting Works" https://ferd.ca/the-zen-of-erlang.html (search for "Heisenbug")
> you should store the state in the external system
Disk works too, but if you're multi-node this means you now have a distributed database embedded in your system, which may or may not be your goal :)
RabbitMQ does this, they developed a library for "persistent, fault-tolerant and replicated state machines" based on Raft: https://github.com/rabbitmq/ra.
- Question about a Decentralized Timeline
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Building Aggregates in Elixir and PostgreSQL
Here is link number 1 - Previous text "Ra"
horde
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Elixir for Ruby developers: the three most important differences
[^3]: https://github.com/derekkraan/horde
- People (even open source maintainers) have lives and jobs and other interests
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Question about a Decentralized Timeline
CRDTs are one solution to “eventual consistency”. Horde is one option: https://github.com/derekkraan/horde
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Building a Distributed Turn-Based Game System in Elixir
Horde – Elixir library that provides a distributed and supervised process registry.
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Write libraries instead of services, where possible
No, typically you register a node and instruct it on what processes to run. But there are libraries to help instrument this kind of behavior.
For elixir:
- https://github.com/derekkraan/horde
- https://github.com/bitwalker/swarm
What are some alternatives?
lasp - Prototype implementation of Lasp in Erlang.
libcluster - Automatic cluster formation/healing for Elixir applications
MicroRaft - Feature-complete implementation of the Raft consensus algorithm in Java
libgit2 - A cross-platform, linkable library implementation of Git that you can use in your application.
khepri - Khepri is a tree-like replicated on-disk database library for Erlang and Elixir.
Elixir - Elixir is a dynamic, functional language for building scalable and maintainable applications
asdf - Extendable version manager with support for Ruby, Node.js, Elixir, Erlang & more
tictac - Demonstration of building a clustered, distributed, multi-player, turn-based game server written in Elixir.
Atomix - A Kubernetes toolkit for building distributed applications using cloud native principles
citus - Distributed PostgreSQL as an extension
buffstreams - A library to simplify writing applications using TCP sockets to stream protobuff messages
Phoenix - Peace of mind from prototype to production