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Devops + Erlang Location Transparency

Devops + Erlang Location Transparency. Michael Bakkemo Noah Gift @ Loggly. Loggly Stack. EC2 Mongo Python Erlang Java Solr Javascript. Cloud Pain: Six Months of Alerts. Problem: Process Management In The Cloud. They all Fail. Or rather…. They all Fail. Or rather….

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Devops + Erlang Location Transparency

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  1. Devops + Erlang Location Transparency Michael Bakkemo Noah Gift @Loggly

  2. Loggly Stack • EC2 • Mongo • Python • Erlang • Java • Solr • Javascript

  3. Cloud Pain: Six Months of Alerts

  4. Problem: Process Management In The Cloud

  5. They all Fail Or rather….

  6. They all Fail Or rather….

  7. What We Used Before • Supervisord(Python based process management tool) • We added a new tool that forked off child processes….. • It blew up • Didn’t restart things reliably • Not cluster aware • Doesn’t have good monitoring or logging integration

  8. Why Not Other Process Management Solutions • Armstrong Corollary on Greenspun's 10th Rule of Programming • We need to heavily customize it • Pick the right tool for the job • A few us knew Erlang….

  9. Armstrong Corollary on Greenspun's 10th Rule of Programming All sufficiently complicated distributed systems contain ad hoc, informally-specified, bug-ridden, slow implementation of half of Erlang–and if they don't they are probably severely mis-designed.

  10. Doesn’t OTP Do That?

  11. Doesn’t OTP Do That? • YES!

  12. Doesn’t OTP Do That? • YES! • Kinda, for Erlang processes only

  13. Doesn’t OTP Do That? • YES! • Kinda, for Erlang processes only

  14. Doesn’t OTP Do That? • YES! • Kinda, for Erlang processes only • YES! • Oh, crap…

  15. Doesn’t OTP Do That? • YES! • Kinda, for Erlang processes only • Ick…

  16. Doesn’t OTP Do That? • YES! • Kinda, for Erlang processes only • Ick… • That shim needs to be smart

  17. Doesn’t OTP Do That? Let’s talk about Loom…….

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