21 April 2014

The Ruby Reflector

Topic

Apache Tomcat

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By Todd Hoff of High Scalability 2 months ago.
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Virginia with a smaller team in Dublin, Ireland.

In general the technology in use are Java 1.6, JavaServer Pages, Tomcat 5.5, Apache 2.2, CentOS 5, Git, Jenkins, Selenium, and jQuery 1.5 . There are some other technologies which are used outside that stack, but these are the main components.

Design Principles

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By Ashley Puls of New Relic 12 months ago.
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This graph displays information on the http-bio-8080 thread pool on a Tomcat 7.0 application server. It shows that the thread pool starts with 10 idle threads and never handles more than five active requests at a time. The 0.23% capacity indicates that the number of active threads is well under the limit.

Session Metrics

Location: Under the HTTP Sessions tab.

Supported Application Servers: Tomcat, JBoss 5 and 6, Resin, TomEE, Glassfish, and WebSphere

Use Cases

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By Hongli Lai of Phusion Corporate Blog over 1 year ago.
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So the only options left were J2EE app servers such as JBoss, Tomcat, GlassFish and TorqueBox; as well as the recently developed Puma, which is almost pure Ruby.

Thanks to the new ApplicationPool and Spawner architecture in Phusion Passenger 4, we're now able to support JRuby with ease. Because a lot of code has been moved into C++, we no longer need the Ruby implementation to support Unix features. We only needed an hour to add support for JRuby.

Phusion Passenger vs…

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By Sylvia Vu of New Relic over 1 year ago.
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APP New Relic RPM for Java Tomcat : For use with Tomcat5 and Tomcat6 ServerTemplates. Installs New Relic RPM for Java and configures it for use with Tomcat.

* APP New Relic RPM for .NET : Installs and configures the New Relic agent for .NET applications. Supports versions 2.0 and above running on Windows Server 2003, Windows Server 2008, Windows Vista, Windows 7 and Windows Azure.

* APP New Relic for Ruby : See our support documentation …

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By Sara of Heroku over 1 year ago.
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Tomcat 7 web app container

The open source Apache Tomcat container is the most popular way to run Java web applications. Heroku supports Tomcat 7 deployment through WAR files and Maven builds. Read more...

Memcache backed distributed HTTP session state

For maximum scalability Heroku applications can use a Memcache store for distributed session state. This alleviates the scalability limitations associated with typical session replication strategies. Externalized…

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By Dotan Horovits of High Scalability over 1 year ago.
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Many organizations are facing the challenge of migrating their IT to the cloud. But not many know how to actually approach this undertaking. In my previous post I took a hands-on example of SpringSource's PetClinic reference application with a Tomcat web server front-end and a Cassandra NoSQL database backend and showed how to onboard it to the cloud in a manageable fashion. But many think this methodology is only good for modern applications that were built with some dynamic/cloud …

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On Heroku over 2 years ago.
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Traditional application servers or containers such as Tomcat will fast become legacy methods for deploying Java applications. The next generation is elastic application platforms ( EAP) that are containerless.

In recent years, J2EE vendors have attempted to fix the problems (including a re-branding from J2EE to JEE). Unfortunately, it was too little too late. The Java space is now ripe for disruptive innovation by cloud application platforms.

Heroku for Java

If you've …

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…Love Torquebox (And Why You Should Too . Trinidad (an embedded command-line Tomcat for running Rack apps) and Torquebox ( JBoss AS plugins and standalone server for Rack, messaging, and more) are the two top web deployment options for JRuby these days. This is your chance to talk to the folks behind them and learn why you might choose one over the other.

Beyond JRuby Every good conference needs talks that are either non-technical or which push the boundaries of current tech. …

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By Barry Steinglass of Chef Blog almost 3 years ago.
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…application deployments. The first two Quickstarts automate deployments of Java Tomcat and Ruby on Rails for the Rackspace Cloud and Amazon EC2.

Opscode is the first vendor to provide an SLA for cloud infrastructure automation. The SLA includes a 99.9 percent monthly uptime guarantee with a service credit and is available to all Opscode Hosted Chef customers. In addition to the SLA, Opscode customers can now purchase enterprise level support with up to 24/7 committed …

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By Dr Nic Williams of Engine Yard Developer Blog almost 3 years ago.
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Trinidad allows you to run rails or rack compatible applications within an embedded Apache Tomcat, and it is the creation of Engine Yard's David Calavera.

Switching to Trinidad and JRuby in local development is very easy:

Add to your Gemfile: platforms :jruby do gem 'activerecord-jdbc-adapter' gem 'jruby-openssl' gem 'jdbc-mysql', :require => false gem 'trinidad' end platforms :ruby do gem 'mysql2' …

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