postgrex
libcluster
| postgrex | libcluster | |
|---|---|---|
| 3 | 10 | |
| 1,050 | 1,886 | |
| 0.8% | - | |
| 6.6 | 6.4 | |
| 16 days ago | 5 months ago | |
| Elixir | Elixir | |
| Apache License 2.0 | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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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.
postgrex
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Elixir clustering using Postgres
Now we can replicate the same behavior in Elixir and Postgrex within IEx (Elixir's interactive shell).
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TIL: Non standard postgres types in livebook
But I found a problem when the data type is not supported by postgrex. In this case, you can either have to write a custom postgrex extension like the example here. In postgrex GitHub repo, there are many examples for common data types, but XML is missing there.
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Realtime: Multiplayer Edition
It sounds like Supabase is pulling out the WAL listening bits into its own library?
https://supabase.com/blog/supabase-realtime-multiplayer-gene...
If so, y'all might want to look into: https://github.com/elixir-ecto/postgrex/blob/master/lib/post...
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.
What are some alternatives?
ecto - A toolkit for data mapping and language integrated query.
Nomad - Elixir/Phoenix Cloud SDK and Deployment Tool
eventstore - Event store using PostgreSQL for persistence
horde - Horde is a distributed Supervisor and Registry backed by DeltaCrdt
mariaex - Pure Elixir database driver for MariaDB / MySQL
Kubex - Kubex is the kubernetes integration for Elixir projects and it is written in pure Elixir.
mongodb_ecto - MongoDB adapter for Ecto
ex_aws - A flexible, easy to use set of clients AWS APIs for Elixir
amnesia - Mnesia wrapper for Elixir.
erlcloud - AWS APIs library for Erlang (Amazon EC2, S3, SQS, DDB, ELB and etc)
couchdb_connector - A couchdb connector for Elixir
discovery - An OTP application for auto-discovering services with Consul