libcluster
epmdless
| libcluster | epmdless | |
|---|---|---|
| 10 | 1 | |
| 1,886 | 173 | |
| - | - | |
| 6.4 | 1.0 | |
| 5 months ago | about 1 month ago | |
| Elixir | Erlang | |
| MIT License | Apache License 2.0 |
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libcluster
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Elixir clustering using Postgres
libcluster is the go-to package for connecting multiple BEAM instances and setting up healing strategies. libcluster provides out-of-the-box strategies and it allows users to define their own strategies by implementing a simple behavior that defines cluster formation and healing according to the supporting service you want to use.
- Phoenix 1.7 for Elixir: Edit a Form in a Modal
- Elixir for Ruby developers: the three most important differences
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cannot query kubernetes (unauthorized): endpoints is forbidden: User cannot list endpoints in the namespace
I am using libcluster to connect my nodesI get the following error:
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We used Elixir's Observer to hunt down bottlenecks
Distributed Elixir can be done with Docker containers too, see https://github.com/bitwalker/libcluster which by default has some Kubernetes support but you can also have third party (or custom) clustering strategies. I've not done this myself but I've seen articles about this a lot during the past years.
Hot code updates for most applications aren't really worth it in my opinion, assuming you do something like blue/green rollover deployments. It's cool that it's possible though. But it requires appup files and afaik Distillery is one of the release tools that has support for it built-in.
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If you were in charge of a startup tech stack, how would you use elixir to actually scale and make every work seamlessly?
On the deployment level, you can use synchronous communication using API-based solutions or asynchronous communication using external solutions (RabbitMQ, Kafka,...) or Erlang/Elixir tools (message passing, pg2, PubSub, Libcluster,...)
- Nodes
- Nodes Elixir
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Clustering nodes with different basenames
Looking throught libcluster code (https://github.com/bitwalker/libcluster/blob/master/lib/strategy/kubernetes_dns.ex#L150) it does seem to require that both nodes share the same basename.
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Building a Distributed Turn-Based Game System in Elixir
libcluster – Automatic cluster formation/healing for Elixir applications.
epmdless
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We used Elixir's Observer to hunt down bottlenecks
Other replies are a bit outdated. It got a lot easier in OTP-23 to go without EPMD, https://blog.erlware.org/epmdlessless/ -- if you run with the same port. If not using the same port across nodes then you may want to look at epmdless https://github.com/tsloughter/epmdless
What are some alternatives?
Nomad - Elixir/Phoenix Cloud SDK and Deployment Tool
walex - Postgres change events (CDC) in Elixir
horde - Horde is a distributed Supervisor and Registry backed by DeltaCrdt
Kubex - Kubex is the kubernetes integration for Elixir projects and it is written in pure Elixir.
ex_aws - A flexible, easy to use set of clients AWS APIs for Elixir
erlcloud - AWS APIs library for Erlang (Amazon EC2, S3, SQS, DDB, ELB and etc)
discovery - An OTP application for auto-discovering services with Consul
Cloudi - A Cloud at the lowest level!
aws - AWS clients for Elixir
Oceanex
IElixir - Jupyter's kernel for Elixir programming language
flyctl - Command line tools for fly.io services