Welcome to another packed “This week in Erlang” newsletter! I wanted to start with pointing to this tweet by Jesper Louis (@jlouis666) that I found funny/interesting.

“Note that systems with less than 1024 schedulers (cores) are not affected by the bug” .. Since OTP 18.0 :) #OTP-14548 #erlang

— Jesper L. Andersen (@jlouis666) October 5, 2017

Now for the real stuff:

Articles and Blog posts

• Amazing milestone for Loïc Hoguin (@lhoguin) for his release of Cowboy 2.0. Read the announcement for yourself.

• Erlang solutions ran a webinar with Martin Sumner (@masleeds), a technical consultant at NHS (National Health Service for England) on their planned enhancements for Riak. Watch/listen to the YouTube upload.

• Dmytro Lytovchenko (@kvakvs) did the inevitable and started working on a Rust implementation of the BEAM VM. While people may refer to this as “rust syndrome”, I think it would be a huge help to the community even as practice. Checkout the repo for progress or contribute.

• Shakthi Kannan (@shakthimaan) wrote an article on using Ansible for building OTP VMs. Take a look and maybe learn from his experiences.

• There was an interesting discussion happening on the Erlang mailing lists about McErlang and Concuerror libraries. Have a read here: https://groups.google.com/forum/#!topic/erlang-programming/G6Zxs_LrkVc

• Kacper Mentel (@mkacper) wrote an article on using ErlangPL on a real world project and what he found out. He broke down the problem, the solution, and the process really well.

Library Updates

• kerl was updated by Mark Allen (@bytemeorg) this week to support older versions of Erlang on High Sierra (MacOS 10.13). You can read about the problem and the solution here: https://github.com/kerl/kerl/pull/230

OTP Updates

• A very important (and exciting) PR that we talked about a few weeks ago finally got merged into the master OTP branch. This is the multi IO polling threads that is expected to bring a significant performance improvements to heavily utilized systems. Check out the details here: https://github.com/erlang/otp/pull/1552

Library of the week

This week we have another library from Fred Hèbert (@mononcqc)! Fancyflow is a library that allows you to nicely manage your application flow. It is written as a parse transform and could really clean-up your messy code :):

https://github.com/ferd/fancyflow

Events and Meetups

• London Erlang User group is sponsoring a talk on Oct 11th. The talk, hosted by Areegee (@AreegeAlZubaidi), is about “Building the ideal betting stack”, checkout the details here: https://www.meetup.com/erlangusergroup/events/243643887/

Employment

• Helium is looking for Erlang/Rust engineers: https://angel.co/helium-2/jobs/281695-software-engineer

Announcements

• I should have thought about this earlier, but if you want to be featured on the newsletter you can use the #twie hashtag in your tweets and I’ll pick them up at the end of the week!

• There is an Atom feed of this newsletter here: https://gootik.github.io/this-week-in-erlang/feed.xml

• You can also signup for the weekly mailing list here: http://eepurl.com/c2xmWr