Rails on Heroku with JRuby

Warning: This is not for production use.

Tested with:

• Rails 3.2.1
• JRuby 1.6.7 (1.9 mode)
• trinidad

Benchmark

http://i.imgur.com/Hk9X9.png

The result is probably worse than one thin/unicorn on one dyno. And one dyno can run 3-4 unicorns.

Known issues

• Error H99 (Platform error) encountered.
• Memory warnings were received for larger applications because of the 512MB memory limit on heroku.

Based on

• http://chris.chowie.net/2011/08/28/Sinatra-with-JRuby-on-Heroku/
• https://github.com/Soliah/sinatra-jruby-heroku
• https://github.com/tomasmuller/sinatra-jruby-heroku