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Switching from Unicorn to Puma. Cloud hosting providers, like Amazon… | by Guy Callaghan | FiNC Tech Blog | Medium
Request timeouts (H12's) when switching from Unicorn to Puma on Heroku · Issue #681 · puma/puma · GitHub
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Comprehensive Comparison of Rack-Based Servers in Ruby: Puma, Unicorn, WEBrick, Thin, Rainbows!, and Passenger | by Ashvin Choudhary | Medium
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