Sunday Sep 16, 2007

Provisioning GlassFish V2 with N1SPS

No matter how many efforts the team has put into making managing GlassFish v2 deployments easier, there will always be a point where some users (service providers or anyone else doing massive deployments) would like some extra help. This is where the N1 Service Provisioning System comes to the rescue. The idea is to help manage hundreds of hosts spread across many geographic locations by provisioning the software - describing it once, deploying it many times. Installing the bits, configuring the product (creating resources), and deploying applications to it can all be taken care of by N1 SPS. This same product can provision just about anything else your architecture requires - database, web servers, etc... This blog gives an overview of N1 Service Provisioning System (N1SPS) Plugin (version 6.0) for Sun Java System Application Server (Productized version of GlassFish V2). This has detailed instructions with some scenarios on how the Application Server plugin works.[Read More]

Wednesday Sep 12, 2007

Setting up Load Balancing and Highly Available Cluster in GlassFish V2

You must have seen many blogs talking about the different parts of configuring a load balancer that will work with GlassFish V2. This blog is an effort to put that content together to create a scenario which you can try and which will work. This document covers the various options in terms of replication and load-balancing using either software (web servers) or hardware solutions. It also touches more advanced topics such as establishing a secure connection between the DAS (Domain Admin Server) and the web server.[Read More]

Tuesday Sep 04, 2007

GlassFish V2: Improved startup performance

This blog discusses the efforts put to bring the startup and shutdown time of GlassFish v2 (DAS, single instance or entire cluster) to the best (smallest) possible number. The improvements are broken into modules.[Read More]

Saturday May 19, 2007

Load balancing for Glassfish V2 deployments using BIG-IP System

There was some interest from people visiting glassfish booth at this years Javaone, on how to use F5 Networks BIG-IP system with Glassfish. This blog explains on how to do this.[Read More]

Wednesday May 02, 2007

LoadBalancer administration for GlassFish

LoadBalancer administration for GlassFish GlassFish V2 Beta, the next major version of the open-source Java EE 5 application server, provides enterprise features such as clustering, administration, Web Services Interoperability Technology (WSIT), NetBeans IDE integration, native SOA support through Java Business Integration (JBI), and load balancing to support highly scalable, volume enterprise deployments for service-oriented architecture (SOA) and Web 2.0 applications.


With the experience of working on Load balancer administration of glassfish, I can say the glassfish has Best in Class Load balancer administration. Reasons being

  • Enhanced GUI capability and CLI commands to administer the LB configuration (Easy to use with a single command and single GUI page).
  • Configuration changes can be pushed from DAS (Glassfish's Domain Administration Server) to Load Balancer automatically (pushed when events like deploy/undeploy/create/ delete-instance etc., occur). This can be achieved by setting up a SSL connection between DAS and load balancer. This will avoid the manual copying of loadbalancer.xml to the WebServer location.
  • The monitoring data about load balancer can also be obtained, once SSL is setup (Currently we support this with AMX interface, the next release will have CLI and Admin Console support). More about this at Satish's Blog
  • Support for Rolling Upgrade.
  • Enhanced the LB configuration on glassfish to support LB policy (round robin, weighted and user defined) and configuration of weights for the glassfish Instances.
Also see the article by me on 'Setting Up F5 Networks' BIG-IP System With Sun Java System Application Server'. Expect to see a similar one for glassfish (shouldn't be much different, If you want to give it a try yourself).

Blog About GlassFish for a Chance to Win a 52-Inch LCD HD TV

GlassFish V2 Beta, the next major version of the open-source Java EE 5 application server, provides enterprise features such as clustering, administration, Web Services Interoperability Technology (WSIT), NetBeans IDE integration, native SOA support through Java Business Integration (JBI), and load balancing to support highly scalable, volume enterprise deployments for service-oriented architecture (SOA) and Web 2.0 applications. [Read More]
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