Wednesday Feb 25, 2015

Updated Coherence JVisualVM Plugin in Latest Coherence Patch by Tim Middleton

clip_image002We have just released Coherence 12.1.3.0.1, (Patch 18378184) which is the first patch set on top of 12.1.3.  As part of this patch there are a few updates to the Coherence JVisualVM Plugin that improve the range of functionality that we can support, a couple of UI tweaks as well as addressing an issue monitoring Coherence clusters in WebLogic Server environments.

The feature highlights are:

1. Added a tab for displaying information about Elastic Data

2. Added a tab for display JCache Information when using Coherence to store JCache (JSR-107) caches

3. Additional metrics to track partitions stats graphically for a service

4. Displaying extra details for some data via drill down.

Displaying Elastic Data Information

We have added support for displaying a tab when you are using Elastic Data. We support clusters running 3.7.x and above and display information about both the Ram Journal and Flash Journal usage as well as the number of compactions taking place. Read the complete article here.

WebLogic Partner Community

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Thursday Feb 19, 2015

WebLogic & Coherence customer presentations


At our WebLogic Community Workspace (WebLogic Community membership required) we posted customer WebLogic and Coherence customer presentations.

clip_image002WebLogic:

  • Cloud Application Foundation CVC Presentation - PPT
  • Cloud Application Foundation Technical Presentation - PPT
  • Approaches for Oracle WebLogic Server in the Cloud - Slideshare

Coherence:

  • Webcast: Top 3 Use-Cases for an In-Memory Data Grid - Replay
  • Coherence CVC, Technical and Roadmap Presentation - PPT
  • Updated Coherence JVisualVM Plugin in Latest Coherence Patch - Blog

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Friday Jan 16, 2015

Getting Started with Oracle Coherence

clip_image002

Part 2 of the Coherence Webinar Series

In this webinar we will demonstrate the principles of Oracle Coherence and develop the code to store data in and retrieve data from the grid. Watch the video here.

WebLogic Partner Community

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Saturday Nov 01, 2014

Cloud Application Foundation SIG in Munich November 4th 2014

On Nov., 4th there will be a Cloud Application Foundation Special Interest Group at Oracle in Munich. Oracle Product Management will talk about latest innovation and the future and plans of Java, Oracle WebLogic Server and Oracle Coherence.
The SIG is a good opportunity to meet partners, customer, and Oracle Product Management.
For more information please visit the registration page
If you would like to attend pls. click on the mail link (an email client should open with subject "Anmeldung zur Oracle  CAF SIG"  - which means "Registration to Oracle CAF SIG"). Please be so kind to add your name and contact data to the mail body and send it to barbara.frank@oracle.com She takes care of the registration process.

WebLogic Partner Community

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Thursday Oct 23, 2014

Discover popular uses for in-memory data grids – Webcast October 29th 2014

LogoTop Three Reasons to Use an In-Memory Data Grid
Date: Wednesday, October 29, 2014
Time: 10:00 AM PDT
As data volumes and customer expectations increase—driven by social, mobile, and cloud devices—so does the need to manage more data, often in real time. Companies facing this challenge benefit from the in-memory data grid technology of Oracle Coherence due to its ability to offload overburdened databases and shared data services and provide real-time data updates to applications. This saves infrastructure cost and ensures optimal performance.
Join the webcast to learn how companies like yours are:

  • Offloading their mainframes and shared services
  • Delivering real-time data to customers to provide the best experiences
  • Caching commonly used data to keep it highly available for application consumption

For details please visit our registration page here.

WebLogic Partner Community

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Wednesday Jul 23, 2014

Getting Started with Coherence*Web in WebLogic Server 12.1.2 by Tim Middleton

Coherence*Web is a great feature which allows you to store your HTTP sessions in a Coherence Cluster. Doing this allows your to de-couple the HTTP sessions from your JVM’s that are running your web apps, (which can free up JVM memory) and take advantage of the RASP (Reliability, Availability, Scalability and Performance) capabilities of Coherence for storage.

With this separation you can also more easily scale and manage and your HTTP session tier as well as utilise the wide array of session management options that Coherence*Web provides.

What I’d like to show you here is how to configure Coherence*Web in WebLogic Server 12.1.2 and deploy a basic web application that utilises this.

For more detailed information on Coherence*Web and the options available, see http://docs.oracle.com/middleware/1212/coherence/COHCW/start.htm#sthref11.
Setup

For this example, I’m assuming you already have installed WebLogic Server 12.1.2 and created a domain with node manager running.
If you are not familiar with how to do this, then you can use one of my posts here as a starting point or see the product documentation here.

We are going to create two WebLogic Server Clusters and a Coherence cluster into which we shall place both WLS clusters. This will ensure that the manages servers in both WLS clusters are associated with a common set of Coherence caching services. Read the complete article here.

WebLogic Partner Community

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Friday Mar 14, 2014

WebLogic section: Configure Coherence HotCache by Edwin Biemond

Coherence can really accelerate and improve your application because it's fast, high available, easy to setup and it's scalable. But when you even use it together with the JCache framework of Java 8 or the new Coherence Adapter in Oracle SOA Suite and OSB 12c it will even be more easier to use Coherence as your main HA Cache.

Before Coherence 12.1.2 when you want to use Coherence together with JPA for the database connectivity, you must make sure that there is no batch job or application doing modifications directly in the database. This will lead to an out of sync Coherence Cache. But with Coherence 12.1.2 together with GoldenGate you can capture these database changes and send updates to the Coherence Cache. This is called Coherence HotCache. Here you can see how it basically works. Read the complete article here.

WebLogic Partner Community

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Wednesday Feb 05, 2014

Coherence 12c (12.1.2) Proficiency

Coherence is am in-Memory Data Grid solution that provides predictable scalability for mission-critical applications, continuous data availability, and transactional integrity.

All videos and more can be found on the Coherence YouTube Playlist At our WebLogic Community Workspace ( WebLogic Community membership required).you can find the latest ppt presentations tagged with Coherence.


WebLogic Partner Community

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Monday Jan 06, 2014

Coherence 12c hands-on Bootcamp at Fusion Middleware Partner Community Forum February 18th-21st 2014

As part of the Fusion Middleware Partner Community Forum 2014 we offer hands-on Coherence 12c Bootcamp The conference is ONLY for Oracle Partners, for details please visit our registration page!maciej

Trainer: Maciej Gruszka, Senior Principal Product Manager at Oracle
Agenda Highlights

  • Basic knowledge in Java and JavaEE
  • Understanding the Application Server concept
  • Basic knowledge in older releases of WebLogic Server

Technical Requirements:

  • Laptop 6 GB RAM
  • Pentium 4 CPU with minimal 1.6 GHz (better Dual-Core)
  • Minimum 15 GB free disk space

Take this opportunity and register now for the Oracle Fusion Middleware Partner Community Forum that will be held in the Hilton Malta on February 18th and 19th 2014 with hands-on training on February 20th & 21st 2014- Like last year we expect that the conference is booked out – register asap!

  • SOA Suite 12c & Cloud integration
  • BPM Suite 12c & Adaptive Case Management 12c
  • Internet of Things & mobile strategy & fast data
  • WebLogic 12c the foundation of Oracle Fusion Middleware.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Monday Dec 23, 2013

Coherence*Web: Sharing an httpSession Among Applications in Different Oracle WebLogic Clusters by Jordi Villena

An easy approach to extending Coherence*Web to enable session sharing.
Downloads download-icon13-1 Oracle Coherence & download-icon13-1 Oracle WebLogic.

Standard Configuration

Coherence*Web permits a full session offload so Oracle WebLogic instances can be focused on processing Oracle WebLogic requests; however, in some cases, http sessions are large, and there is a trade-off between the benefits of offloading the whole user session, and reducing the network usage by offloading only the object that needs to be shared among the different web applications. Coherence*Web and Oracle Coherence itself are built with low-latency, non-blocking I/O as a prime function, but it still takes time and bandwidth to transmit when working with large volumes of data. In such situations, it would be useful to be able to select which session attributes must be stored in the local storage of the Oracle WebLogic instances, and which should be leveraged to an Oracle Coherence distributed cache.

The storage configuration in Coherence*Web can be configured in a wide variety of ways. To balance between offloading Oracle WebLogic instances and mitigating the performance lost by storing the whole http session in an Oracle Coherence dedicated node, a subset of session attributes can be stored in the Oracle Coherence external cache via the use of a custom session distribution controller.

Another reason to offload some session attributes from Oracle WebLogic is to share this set of attributes with web applications deployed in different Oracle WebLogic clusters. A session distribution controller allows us to add logic to deduce whether a session attribute must be stored in the distributed cache.

The following sample shows a session distribution controller that stores session attributes whose name begins with "shared_" in the distributed Coherence Layer, as well as any other attribute in the local storage of the Oracle WebLogic managed instance that handles the user request: Read the complete article here.

WebLogic Partner Community

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Friday Dec 20, 2013

Coherence Community on Java.net by Bob Rhubart

Brian Oliver (Senior Principal Solutions Architect, Oracle Coherence) and Randy Stafford (Architect At-Large, Oracle Coherence Product Development) discuss the evolution of the Oracle Coherence Community on Java.net and how developers can actively participate in product development through Coherence Community open projects.

Watch the interview on YouTube.

Visit the Coherence Community at: here.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Tuesday Nov 19, 2013

Harness the Power of Oracle WebLogic and Oracle Coherence Join our online virtual event on December 3rd

Java Developers and Architects can attend live, moderated sessions and hands-on labs to learn how to leverage existing skills to take advantage of features in Oracle WebLogic and Oracle Coherence, core components of Oracle's Cloud Application Foundation. For details please visit our registration page.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Tuesday Nov 12, 2013

New Coherence 12c White Paper: The Advantages of Coherence on Exalogic

This white paper provides you with an overview of both Oracle Coherence and Oracle Exalogic Elastic Cloud, and how businesses can realize even greater benefits from these technologies when they are used in tandem. Get the white paper here.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Thursday Sep 26, 2013

Planning a Successful Coherence Deployment

Hot off the press! A new white paper on planning a successful Coherence deployment is now available here.

This is a complete update of the previous white paper on this subject. It covers a range things you should consider, how the new features in 12c can be used, tips and tricks and practical advice about everything from application design to capacity planning. Whether you are an administrator looking to monitor and manage a Coherence application, a developer or architect just starting out with Coherence or an experienced Coherence user,  this guide should prove a useful companion to the existing Coherence help and documentation.

WebLogic Partner Community

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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Tuesday Jul 16, 2013

Coherence YouTube videos by Frank Munz

Frank Munz released three new videos on Youtube:

· Oracle Coherence Basics and Multicast Test, Firewalls - YouTube

· Oracle Coherence Command Line, Replication and Availability - YouTube

· Oracle Coherence NetBeans API and NamedCache - YouTube

For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center.

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