Wednesday, October 30, 2013

Getting Started with Oracle WebLogic 12c Dynamic Clusters

One of the new features introduced on WebLogic 12c (12.1.2) is the ability to create and add new managed servers to a clustered environment dynamically. Dynamic Clusters make the task of creating additional servers for scaling out your environment really easy.
 You no longer have to configure managed servers individually but instead you configure a cluster with the number of servers you want and the server template or the domain default values. From there the system maps out managed servers with attributes inherited from the server template.

Dynamic clusters can absolutely be a building block for elasticity in the cloud environment.

To create a sample WebLogic Dynamic Cluster configuration, follow the steps below:

- Download and install Oracle WebLogic Server 12.1.2 at

- Create a new domain called mydomain. If you need the instructions on how to create a WebLogic domain, go to:

- Start WebLogic Admin Server by running $WLS_HOME/user_projects/domains/my_domain/ | .bat where WLS_HOME is the directory where you have installed WebLogic

- Navigate to WebLogic console at http://localhost:7001/console (default settings used here)

- Under the domain structure, click on Machines and configure a new Machine called myMachine and the default settings.

- Create the Dynamic Cluster. Click on Cluster under the Domain Structure menu

- Click on the New button and then select Dynamic Cluster

- Specify the name for your Dynamic Cluster (i.e. myDynamicCluster) and press Next

- Select the number of dynamic server you want to configure, select the server name prefix and the template to be used when creating new servers. Click Next

- For this simple local configuration, specify the Machine Binding to be using the machine you created (myMachine) previously. Click Next

- Select the listen port for the first server in the dynamic cluster and then the SSL lister port for the first server in the dynamic cluster. The subsequent servers will be assigned with an incremental port number. Click Next

- You will be presented with the summary of your New Dynamic Cluster configuration. Click Finish and it will be created for you.

- The Summary of Clusters screens should show you the recently created Dynamic Cluster.

- Click on myDynamicCluster and then go to the Control tab. 

Before you can start any of the dynamic cluster members, make sure you have started the Node Manager on your machine with the following command: $WLS_HOME/user_projects/domains/my_domain/bin/ | .bat

As soon as the Node Manager is started, then go back to the WebLogic Admin Console, then select one of the servers in the cluster and then click Start. As a result of that operation, you should see the selected server up and running.

- The next step here is to start the other servers configured in your cluster and as a bonus you can dynamically add new members to the dynamic cluster.

I hope you found this sample tutorial and stay tuned for more!

Tuesday, October 22, 2013

Oracle Mobile Development Platform Workshop

It has been almost five months since I started at Oracle and I have been busy working on a bunch of different technologies including WebLogic, Coherence, Service Bus, API Gateway and obviously Mobile. If you are interested in the Oracle Mobile Development Platform, we are offering a free technical webinar on October 30th at 9:30 AM Pacific/10:30 AM Mountain.  This is going to be a 90 minute technical presentation and demonstration where you will see how:
  • You can develop Mobile Applications once and deploy natively to both iOS and Android
  • Resulting  Applications allow your company’s employees and customers to securely access your internal packaged and custom applications from any device
  • Your Mobile Applications are written Java and HTML5, but leverage native device functionality such as GPS, Camera, Address Book and Accelerometer
  • The Resulting Applications look, feel, and perform as though they were natively developed, i.e., these are not just web applications running in a phone’s browser
  • Oracle is using the Mobile Development Platform for their own application delivery
  • Oracle’s Mobile Platform enables full lifecycle support of Mobile Applications covering their development, end-to-end security, service connectivity and integration, deployment, distribution and management
To attend the webinar, please contact me at: mqjabali [at] gmail dot com

See you online...

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