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ErlangTL;DR edition for busy    ruby peoples    A short presentation :D    • with bullet points :(    and no lolcats :(   ...
Erlang in 2 minutes• Functional• Built for reliability (nine nines)• Some nice adjectives include:   • concurrent, distrib...
Erlang in 2 minutes• Gotchas include:   • It looks a lot like Prolog   • Immutability   • No “loops” (use tail recursion, ...
OTP in 5 minutes• It’s an application framework• Release handling (sort of), hot code-swapping• Supervision Tree• Patterns...
Supervision Tree
Behaviours• gen_sup - supervisor, often linked to one of:• gen_server - generic module• gen_fsm - finite state machine• gen...
Supervision Tree
WTFBRO this ain’t Ruby• You might be using it already (hello, CouchDB?)• Integration options:   • Ruby-Erlang bridge (erle...
Build Something• rebar - a build tool (on steroids)• ChicagoBoss - (Rails-like MVC Framework)   • for immediate gratificati...
Hack Something• ChicagoBoss - http://github.com/evanmiller• http://github.com/languages/Erlang• Riak, RabbitMQ , eJabberd,...
Read Something                                              “Dont                                              drink too  ...
Erlang Pizzafest• Every 2mths @ RocketBoots• Next meetup Tues 5th June• http://bit.ly/erl_syd• No experience necessary (pi...
Double-Click to Edit      (this is the last slide)
Erlang: TL;DR
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Erlang: TL;DR

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A lightning talk presented at Rails Oceania Sydney, M

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  • Transcript of "Erlang: TL;DR"

    1. 1. ErlangTL;DR edition for busy ruby peoples A short presentation :D • with bullet points :( and no lolcats :( in a default keynote theme :( by Vaughan Allan :D http://github.com/vorn @vornstar
    2. 2. Erlang in 2 minutes• Functional• Built for reliability (nine nines)• Some nice adjectives include: • concurrent, distributed, “soft real-time” • fault tolerant • scalable (cloud-scale, web-scale) • green (sort of)
    3. 3. Erlang in 2 minutes• Gotchas include: • It looks a lot like Prolog • Immutability • No “loops” (use tail recursion, or map funs) • Strings are weird-ish
    4. 4. OTP in 5 minutes• It’s an application framework• Release handling (sort of), hot code-swapping• Supervision Tree• Patterns (behaviours)
    5. 5. Supervision Tree
    6. 6. Behaviours• gen_sup - supervisor, often linked to one of:• gen_server - generic module• gen_fsm - finite state machine• gen_event - event-driven pub/sub
    7. 7. Supervision Tree
    8. 8. WTFBRO this ain’t Ruby• You might be using it already (hello, CouchDB?)• Integration options: • Ruby-Erlang bridge (erlectricity, experimental) • ZeroMQ • DIY (REST/socket APIs are easy *)• It runs on Heroku ** • https://github.com/vorn/ChicagoBoss-on-Heroku
    9. 9. Build Something• rebar - a build tool (on steroids)• ChicagoBoss - (Rails-like MVC Framework) • for immediate gratification• webmachine by Basho (a “REST Toolkit”)• Emacs! (?)
    10. 10. Hack Something• ChicagoBoss - http://github.com/evanmiller• http://github.com/languages/Erlang• Riak, RabbitMQ , eJabberd, CouchDB
    11. 11. Read Something “Dont drink too much• http://learnyousomeerlang.com Kool-Aid”• “Programming Erlang” (pragprog.com)• “Erlang Programming” (O’Reilly) - good for learning OTP• “Erlang and OTP in Action” (Manning)• “7 Languages in 7 weeks” (pragprog.com)
    12. 12. Erlang Pizzafest• Every 2mths @ RocketBoots• Next meetup Tues 5th June• http://bit.ly/erl_syd• No experience necessary (pizza xp assumed)
    13. 13. Double-Click to Edit (this is the last slide)
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