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Top 23 Elixir Erlang Projects
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WalEx instead of pub/sub (listen/subscribe): https://github.com/cpursley/walex
Supavisor connection pooler: https://github.com/supabase/supavisor
Project mention: Show HN: I rewrote the 1990's LambdaMOO server from scratch | news.ycombinator.com | 2023-09-23> State has to be owned by a process - who owns the state of the world? ... Keep in mind, when data is passed "between" processes it is deep copied.
The Erlang runtime has other stateful things besides processes, and manipulating data within these and/or getting a handle on data in these places doesn't necessarily involve copying.
• ETS tables, which hold state privately to themselves (with copying in/out) in a similar way to how processes do. If you manipulate data inside ETS tables by "sending compute to data" (think Redis INCR) rather than by "sending data to compute", then no copying happens.
• "Globals" in the form of data compiled into read-only versioned modules loaded into the modules table and available to be referenced from any/all active processes, only copied if the module gets unloaded before the process dies. (Originally this was just a design pattern — https://github.com/discord/fastglobal — but it eventually became its own runtime feature in Erlang 22, https://www.erlang.org/doc/man/persistent_term).
• Large binaries (anything over 64 bytes) aren't allocated in an actor's memory arena, but instead are allocated in a special global-per-node binaries heap, and then ref-counted, where each actor-process holds one reference to each large-binary it's using, and then each read-only slice of that binary, in turn holds a reference to the per-actor reference handle for the binary. One clever technique for sharing a large "database" of data between many actors, is to store the data encoded in a large binary in an encoding that is efficient to partwise-decode; and have the "lookup" operation just parse+decode the appropriate data out of the binary. (This is how erlang:module_info/2 used to work — the global modules-table itself holding a set of references to the loaded modules' binaries, which module_info would then parse metadata out of on demand.)
Project mention: Work Distribution with Jump Consistent Hashing [Elixir] | news.ycombinator.com | 2023-06-08Worth noting Discord's consistent hash ring implementation in pure Elixir. It's very easy to use and maintained by Discord (yay): https://github.com/discord/ex_hash_ring/
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Elixir Erlang related posts
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Supavisor 1.0: a scalable connection pooler for Postgres
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PgBouncer 1.21.0 released with prepared statement support
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Crawly – Elixir web scraping framework
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Firefly – A new compiler and runtime for BEAM languages
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An Introduction to Mocking Tools for Elixir
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Elixir and Rust is a good mix
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Distributed² Machine Learning Notebooks with Elixir and Livebook
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A note from our sponsor - InfluxDB
www.influxdata.com | 18 May 2024
Index
What are some of the best open-source Erlang projects in Elixir? This list will help you:
| Project | Stars | |
|---|---|---|
| 1 | floki | 1,998 |
| 2 | supavisor | 1,601 |
| 3 | desktop | 1,421 |
| 4 | fastglobal | 1,126 |
| 5 | Wobserver | 927 |
| 6 | graphql | 861 |
| 7 | Crawly | 845 |
| 8 | memento | 710 |
| 9 | kafka_ex | 592 |
| 10 | ex_hash_ring | 493 |
| 11 | matrex | 479 |
| 12 | Bonny | 362 |
| 13 | Ace | 304 |
| 14 | ecto_mnesia | 242 |
| 15 | rexbug | 239 |
| 16 | extreme | 127 |
| 17 | matcha | 87 |
| 18 | website | 79 |
| 19 | wireguardex | 64 |
| 20 | iex_history2 | 52 |
| 21 | re | 43 |
| 22 | panoramix | 39 |
| 23 | allydb | 32 |
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