GlassFish can support multiple Ruby frameworks ... really ?

GlassFish can support multiple Ruby frameworks ... really ? Arun Gupta, Oracle Corp blogs.sun.com/arungupta, @arungupta

What is GlassFish ?

GlassFish: It's a Community!

GlassFish: Lives on java.net Since 2005

GlassFish: Reference Implementation

GlassFish v3

JRuby • Ruby interpreter written in Java • Current Version: 1.4.0 • 1.5 RC coming soon • Ruby 1.8.7 compatible • Some Ruby 1.9 support • --1.9 flag (80%)

• Solid performance (~Ruby 1.9) • Startup is poor, execution usually better than 1.9 • Runs native threads • Foreign Function Interface (FFI)for C libraries • Adopted from Rubinius, CRuby gem • Runs Rails great!

Ruby Frameworks on GlassFish

GlassFish v3 Architecture JSF Grails ... Rails Merb ... Django ... Servlet Spec Rack WSGI Web JRuby Jython Container Container Container V3 Kernel Grizzly JVM Key GlassFish v3 Modules Java Framework Python Framework Web Framework Ruby Framework Interface

Why Ruby on GlassFish ? - Agile

Why ? - Easy prototyping, yet powerful

Why ? - Best of both worlds

Why ? - Database Connection Pooling

Why ? - Management

Why ? - Monitoring

Rails Deployment choices Directory, WAR, Gem

jruby -S gem install glassfish jruby -S rails helloworld cd helloworld jruby -S glassfish http://blogs.sun.com/arungupta/entry/totd_70_jruby_and_glassf sh i

jruby -S glassfish -h -c: change the context root -e: environment -d: Runs as daemon -P: location of PID file -l: log file location -log-level: Logging level (0-7)

asadmin start-domain asadmin deploy --property "jruby.home=JRUBY_HOME" helloworld Complete Absolute Path

http://wiki.glassf sh.java.net/Wiki.jsp?page=GlassFishV3CapistranoRecipes i

jruby -S gem install warbler jruby -S warble http://blogs.sun.com/arungupta/entry/totd_73_jruby_and_glassf sh i

WAR Deployment: Packaging

http://blogs.sun.com/arungupta/entry/totd_80_sinatra_crud_application

Any Rack-based framework ... http://weblogs.java.net/blog/vivekp/archive/2009/04/plugin_any_ruby.html

Deployment Options http://blogs.sun.com/arungupta/entry/totd_81_how_to_use http://blog.headius.com/2009/04/apache-jruby-rails-glassf sh-easy.html i

NetBeans: Develop with Pleasure http://blogs.sun.com/arungupta/entry/screencast_26_develop_run_debug

Ruby Monitoring • Basic Monitoring • jinfo: System properties and VM CLI flags • jmap: Shared object memory map • jstack: Stack traces of Java threads • jstat: Performance statistics on class, JIT compiler, GC, ... • Advanced • jconsole / Visual VM • NewRelic, FiveRuns, ...

jConsole http://blogs.sun.com/arungupta/tags/rubyonrails+jmx

Who loves Ruby on GlassFish ?

Turbo charging your JRuby Startup • “-client” or “-server” ? (Upto 50%) • Faster startup or solid runtime ? • export JAVA_OPTS=”-client -D32” • Upto 50% improvement • For Linux: Class Data Sharing • Delay or disable JRuby's JIT (Upto 10%) • -X-C • jruby.compile.mode=OFF • Avoid spawning “sub-Rubies” • Nailgun for small JRuby CLI invocations • Favorite JVM Flags http://blog.headius.com/2010/03/jruby-startup-time-tips.html

Resources • glassfish.org • blogs.sun.com/theaquarium • glassfish-scripting.dev.java.net • @glassfish

GlassFish can support multiple Ruby frameworks ... really ? Arun Gupta, Oracle Corp blogs.sun.com/arungupta, @arungupta

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GlassFish can support multiple Ruby frameworks ... really ?

by Arun Gupta on Mar 21, 2010

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