Development status Active Operating system | ||
Stable release 4.0.49 / 19 October 2016; 5 months ago (2016-10-19) |
Resin is a web server and Java application server from Caucho Technology. In addition to Resin (GPL), Resin Pro is available for enterprise and production environments. Resin supports the Java EE standard as well as a mod_php/PHP like engine called Quercus.
Contents
Resin Pro includes optimizations such as built-in caching and features such as clustering support, advanced administration, and the health system that includes HTTP session replication, Java Monitoring, distributed cache replication, and JMS queue replication. While Caucho describes these as "features and enhancements commonly needed in a production environment", Resin Open Source is used without these features.
Although a Java-based server, key pieces of Resin's core networking are written in highly optimized C. Caucho states Java is the layer that allows Resin to be "full featured" while C provides the speed. Resin, which was released in 1999, predates Apache Tomcat, and is one of the oldest application servers and web servers.
Product features
Scalability
Development
Production Ready
App Server'
Web Server
Usage
Resin's market share is small in the grand scheme of Java Application Servers, but some high traffic sites use it, such as Toronto Stock Exchange, SalesForce.com, Condé Nast (parent company of Wired, Vogue, GQ), CNET. NetCraft's February 2012 Survey stated Resin grew to 4,700,000 sites; Resin was the only Java-based web server mentioned.
A 2012-page on a Caucho wiki site describes a test procedure with results showing that tested 0k (empty HTML page), 1K, 8K and 64K byte files. At every level Resin matched or exceeded nginx web server performance.
Quercus
Quercus is a Java-based implementation of the PHP language that is included with Resin. According to a slideshow presented by Emil Ong (from Caucho), to a San Francisco Java Meetup Group in April 2008 pertaining to Resin 3.1, an essential difference in the operation of Quercus between the Resin Open Source and the Resin Professional editions is that in Resin Professional the PHP is compiled to Java bytecode whereas in the open source version PHP is executed by an interpreter.
Caucho states that Quercus is faster than standard PHP although this is only true for the JIT-compiled version in Resin Professional. Quercus ships with Resin.
Licensing
One license covers all components of the Resin architecture.
Resin is provided in both an open source GPL license and a Pro version with enhancements for enterprises.
Resin Pro is geared towards businesses, governments, and enterprises such as:
These are the areas where the aforementioned Open Source components are not well suited and where Resin Pro has been engineered to include: