Arun Gupta, Miles to go ...

LOTD #20: How to create a JPA application using GlassFish Tools Bundle for Eclipse ?

Here is a great screencast (from the community) that shows how to create a JPA application using EclipseLink and deploy on GlassFish v2.1 - all using GlassFish Tools Bundle for Eclipse.

Click on the image below for the video:



Thanks!

I'll work on a MySQL version of it :)

All previous links in this series are archived at LOTD.

Technorati: lotd glassfish eclipse jpa javadb screencast

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LOTD #18: Campus Ambassadors presenting on GlassFish - France & India

Agnieszka and Julien, the Sun Campus Ambassadors at INSA Lyon presented on GlassFish. Read the complete report here and enjoy a picture:



Here is another report on Hibernate/NetBeans/GlassFish presentation - again at INSA Lyon.

Dwarkanath, the Campus Ambassador at Sastra, presented on GlassFish as part of Student Technology Camp. Read the complete report here and enjoy a picture:



If you are interested in learning/talking about GlassFish at your university, spotlight.dev.java.net/start provides a comprehensive set of slides (with speaker notes), demos, screencasts, training materials and other resources to get you started!

All previous links in this series are archived at LOTD.

Technorati: lotd glassfish students campusambassadors france india spotlight

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LOTD #17: Sun GlassFish Enterprise Server Administration and Deployment Course - SAS 4455

Interested in learning how to configure, administer, and deploy web applications, EJB applications, and Web services on GlassFish ? This 4-day instructor-led workshop (with numerous hands-on labs) introduces you to various Sun GlassFish Enterprise Server (GlassFish) concepts and functions ranging from introductory to advanced and provides you with hands-on experience via remote labs. You also learn to enable various advanced GlassFish features, such as in-memory replication, high availability database (HADB), load balancing, monitoring and logging, clustering, and security.

• Install, upgrade, migrate, and uninstall GlassFish
• Configure GlassFish
• Create a clustered GlassFish environment
• Deploy applications in GlassFish
• Perform logging and monitoring in GlassFish
• Install and configure the load balancer plug-in
• Configure and use in-memory replication
• Configure and use HADB for high availability
• Configure advanced features of GlassFish
• Configure the security features of GlassFish
• Configure and work with databases
• Work with Sun Java System Message Queue (Message Queue) Clustered Application Server

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LOTD #16: Hotspot Flags, JRuby Version String, and JRuby/MRI Benchmark

This post shares 3 links that were recently published.

The first one is about the Favorite Hotspot JVM Flags by Charlie. See how you can use them for tweaking performance or investigating runtime metrics.

The second one is about using JRuby Version String. It explains the detailed meaning of the version string printed by "jruby --version". If you read it carefully then you know the date, hardware, platform, SVN revision and even state of Charlie's local git-svn clone.

The third and the last one is about benchmark results between MRI and JRuby with the following summary:

From my tests it appears that MRI is faster in single threaded mode, but JRuby makes up for the loss big time in the multi-threaded tests. It's also interesting to see that the multi-threaded mode gives MRI(green threads) a performance boost, but it's nowhere close to the boost that JRuby(native threads) can squeeze out from using multiple threads.

Read Igor's report for more results.

And while you are reading this entry, did you know that GlassFish Gem 0.9.2 was recently released ? Use it for running your Rails applications seamlessly :)

All previous entries in this series are archived at LOTD.

Technorati: lotd glassfish v3 gem jruby ruby hotspot vm

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LOTD #15: Deploying Merb application on GlassFish v3 using Warbler

GlassFish v3 with Merb and Warbler explains how to use Warbler to deploy a Merb application on GlassFish v3. Here is a quote from the blog:

this lovely server had a gem which you can use to fire up a Glassfish server. Easy as pie and within no time at all we were developing our Merb app on Glassfish.

The blog requires some workaround for Warbler and Nick is planning to fix them in the next rev. And other workaround is required because of Webrat's recently introduced dependency on Nokogiri which does not run on JRuby yet.

In addition, TOTD #52 explains how to deploy a Merb application using GlassFish gem and TOTD #53 explains how to create a scaffold in Merb.

Submit your Merb/GlassFish bugs here, talk to us using GlassFish Forum, and get the latest information on JRuby wiki.

All previous entries in this series are archived at LOTD.

Technorati: lotd glassfish v3 gem warbler merb

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LOTD #14: New Whitepaper: GlassFish High Availability Reference Configurations for a Virtualized Environment

GlassFish v2 allows you to configure cluster of multiple nodes/instances to meet various availability requirements, from the highly scalable service availability configuration to the business-critical, 99.999% service-and-data availability configuration. A cluster can be deployed using different toplogies with a choice of service/data availability, in-Memory/HADB, co-located/non-colocated and other factors. This new white paper explains reference configurations on that can be used for deploying business services.

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LOTD #13: Warbling with RMagick on GlassFish

GlassFish with RMagick explains the Warbler configuration required for using RMagick with GlassFish.

Did you know Rails application can be natively deployed on GlassFish v3 Prelude ? And you can even buy production support!

All previous entries in this series are archived at LOTD.

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LOTD #12: Technorati State of the Blogosphere 2008

Technorati.com released State of the Blogosphere 2008. Here are some results from the report:


































All previous entries in this series are archived at LOTD.

Technorati: lotd blogosphere technorati 2008

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LOTD #10: Running GlassFish on Joyent Accelerator

Joyent provides a cloud computing environment for all your needs.

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LOTD #9: Advantages of JRuby over MRI

Andreas blogged about why he likes JRuby even though he dislikes Java.

JRuby is "It's just Ruby" with more than 50,000 tests to ensure MRI compliance. The blog highlights that there is no need to know Java, at all, to run JRuby. Here are some advantages that are described in the blog:

1. JVM runtime optimization
2. Efficient memory usage
3. Native threads to spread work on multiple cores
4. Great garbage collection to make memory usage more efficient
5. JIT and AOT compilation
6. Inegration with Java libraries
7. Running Rails applications on existing Java application servers
8. Documentation and specs

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LOTD #8: sun.com/students launched: Everything about Sun and Students

sun.com/students is one-stop for all students interested in Sun Microsystems.

It has content related to all students:

• Student Lounge where students can hang out (facebook, friendfeed, flickr and others)
• Student Blogs
• OSUM community (Open Source University Meetup, pronounced "awesome")
• Campus Ambassadors

• GlassFish and MySQL Contest - 3 steps to earn $500
• spotlight.dev.java.net - one-stop resource for all students interested in GlassFish

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LOTD #7: Happy User of FREE GlassFish Hosting @ OStatic/LayerTech

Alex De Marco is a happy user of FREE 12-months GlassFish Hosting @ OStatic. Here is what he has to say:

Many thanks to OStatic and LayeredTech for offering free hosting, and to Sun for providing a powerful yet free application development stack: Glassfish, Java, MySQL, and OpenSolaris. VERY MUCH appreciated!

You can avail this exclusive and limited-time offer here!

Technorati: glassfish startup hosting ostatic layeredtech

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LOTD #6: Rails Deployment on GlassFish in 4 steps and 15 minutes

Charlie describes, in 4 easy steps, how to deploy any Rails application on GlassFish:



The main steps are:

Step 1: The App Server
Step 2: Package your App
Step 3: Deploy your application
Step 4: Tweaking (Optional)

And it should only take 15 minutes on GlassFish v2!

The conclusion of the blog is:

Hopefully this walkthrough clears up some confusion around JRuby on Rails deployment to an app server. It's really a simple process, despite the not-so-simple history surrounding Enterprise Application Servers, and GlassFish almost makes it fun :)

The next version, GlassFish v3, allows Rails application to be deployed natively, i.e. no packaging is required. You create a Rails application and run it - just the way you are used to! Read all about it here.

All previous entries in this series are archived at LOTD.

Technorati: lotd rubyonrails jruby ruby glassfish

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