September | 2018

Fall is approaching quickly and as the season changes, so does the state of Resin! Let's take a look…

Newsletter at a glance

Korea case study – nationwide scalability in 3 days!
Bug fixes
Release schedule
JDK updates
Embedded Resin
Question for our users
Cookbooks available
Download verification

Case Study: Resin clustering = Nationwide Scalability

“We solved our nationwide scalability and performance problems using Resin clustering. Additionally, we have achieved major performance benefits to our high traffic sites. We’ve experienced enough that migrating to Resin Pro was a very well judged choice in performance increase and cost savings aspects. We see Resin as long-term solution.”

-Jung Sir. IT Team, Korea Chamber of Commerce and Industry

Case study pic

Case study pic 2

With service traffic averaging 30,000 daily visitors and 70 transactions per second, the Korea Chamber of Commerce apps must always be available for end users. As their audience grew, the need for geographically redundant clustering became vital. Resin Pro’s triad clustering kept network traffic to a minimum, while providing an alternative Hessian binary format for clustering any object. This allowed legacy applications to benefit from cloud clustering through configuration instead of code reworking.

Bottom line – KCCI migrated away from a popular web application server to Resin Pro and improved availability for their growing number of visitors. They went from test to deployment in just three days and the cost savings mean this will be a long term solution.

Bug Fixes:

Resin – 4.0.59 – in progress

==============

- 0006180: Double quotes not set through web server

- 0006181: SSL protocol update in Quercus

- 0006177: Deadlock starting ResinEmbed
- 0006184: Path-based XSS in redirects from FileServlet

Resin – 4.0.58 – currently available

==============

- 0006170: ByteCodeClassScanner fails for packages with JDK9 module-info.class files

- 0006168: AsyncServlet Wake-up occasionally looses events

- 0006171: <load-on-startup> retry logic customization

- 0006169: Enable/Disable Openssl protocols from resin.properties

- 0006166: All threads associated with a port disappear

- 0006172: request parameters not kept immutable – 0006167: cookie-same-site

Release Schedule

Resin 4 releases are scheduled every 5-7 weeks. With releases including performance enhancements, bug fixes, feature requests, and security patches it is advisable to be running the most current version of Resin in production.

For details or questions about specific fixes & vulnerabilities that have been patches in releases, email wiley@caucho.com

JDK Updates

Java development has a new release cadaence with releases coming every 6 months. The new release schedule calls for a feature release every six months, update releases every quarter, and a long-term support (LTS) release every three years.

The current release schedule is as follows:

Resin 4.0.57+ currently supports JDK 9 and can be downloaded on the Caucho website. Future releases of the JDK will be fully supported by Resin weeks after initial Java releases are made public.

If you need to start development with a new version of Java before our official Resin release, feel free to ask us about an early snapshot!

Embedded Resin

An embeddable version of the Resin server can be useful in instances where a user would like to package both the app & app server together, reducing potential complexities for deployment. With deployment orchestration and container platforms like Kubernetes & Docker gaining usage, embedding Resin can aid in creating deployable runtime environments.

Q: Are there any performance implications running Resin in this fashion?

Nope! The *Embed objects are only used to configure the regular Resin server. Once the server is configured they become discarded or unused.

The main Resin embed class is com.caucho.resin.ResinEmbed. Additionally, the http://javadoc4.caucho.com/ website provides documentation on embedding Resin.

The main Resin class: com.caucho.server.resin.Resin, can be bootstrapped for additional capabilities.
For a simple application, com.caucho.resin.ResinEmbed, HttpEmbed (for port) and WebAppEmbed are the classes you need first. An example is provided below:

Resin embed 2

How are you using Resin?

Comic Con 2018 We'd like to hear from you!!

Our quarterly newsletter reaches 8700 readers.

    If you have an application that deserves the
    spotlight, email Alexandra at garmon@caucho.com
    to share your story. We can create a case study
    or even a fun paragraph with a link to show off your work.

(Caucho CEO, Steve Montal @ Comic Con 2018)

Resin Cookbooks

Simple 10-minute overviews of various Resin topics are available on the Caucho website. For new users or even users who want brief refreshers on advanced Resin topics, the cookbooks are a great place to start.

Resin Deployment

–basic application deployment on Resin

Resin Debugging

–useful debugging tools for Resin deployments

Resin on Amazon EC2

–get setup on Amazon EC2 in minutes

Resin Security

– 4 ways to secure your deployment

Resin Checksum

For verifying your Resin download, the following url format and location can be used to view the sha256 checksum: