July 2016
Intermediate to advanced
150 pages
4h 24m
English
Content preview from Deploying with JRuby 9k
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Porting to JRuby
Before deploying any existing MRI-based Rails application on JRuby, you must make a few essential changes to its dependencies. To ensure that you keep track of your changes, initialize a Git repository and create a branch with the following commands:
| | $ cd ~/code/twitalytics |
| | $ git init |
| | $ git add -A |
| | $ git commit -m "initial commit" |
| | $ git checkout -b jruby |
| | Switched to a new branch 'jruby' |
In the past, preparing an app for JRuby required a number of library and code changes because many gems and commands such as Kerenel#exec couldn’t be used reliably. But today, JRuby 9k uses native operations for most I/O and process APIs. This makes it the only POSIX-friendly ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.