Comments
yourfanat wrote: I am using another tool for Oracle developers - dbForge Studio for Oracle. This IDE has lots of usefull features, among them: oracle designer, code competion and formatter, query builder, debugger, profiler, erxport/import, reports and many others. The latest version supports Oracle 12C. More information here.
Cloud Computing
Conference & Expo
November 2-4, 2009 NYC
Register Today and SAVE !..

2008 West
DIAMOND SPONSOR:
Data Direct
SOA, WOA and Cloud Computing: The New Frontier for Data Services
PLATINUM SPONSORS:
Red Hat
The Opening of Virtualization
GOLD SPONSORS:
Appsense
User Environment Management – The Third Layer of the Desktop
Cordys
Cloud Computing for Business Agility
EMC
CMIS: A Multi-Vendor Proposal for a Service-Based Content Management Interoperability Standard
Freedom OSS
Practical SOA” Max Yankelevich
Intel
Architecting an Enterprise Service Router (ESR) – A Cost-Effective Way to Scale SOA Across the Enterprise
Sensedia
Return on Assests: Bringing Visibility to your SOA Strategy
Symantec
Managing Hybrid Endpoint Environments
VMWare
Game-Changing Technology for Enterprise Clouds and Applications
Click For 2008 West
Event Webcasts

2008 West
PLATINUM SPONSORS:
Appcelerator
Get ‘Rich’ Quick: Rapid Prototyping for RIA with ZERO Server Code
Keynote Systems
Designing for and Managing Performance in the New Frontier of Rich Internet Applications
GOLD SPONSORS:
ICEsoft
How Can AJAX Improve Homeland Security?
Isomorphic
Beyond Widgets: What a RIA Platform Should Offer
Oracle
REAs: Rich Enterprise Applications
Click For 2008 Event Webcasts
In many cases, the end of the year gives you time to step back and take stock of the last 12 months. This is when many of us take a hard look at what worked and what did not, complete performance reviews, and formulate plans for the coming year. For me, it is all of those things plus a time when I u...
SYS-CON.TV
(R)Evolution of Content Delivery Networks into App Delivery Networks
What happens when we combine the power of the optimizing ADCs with the world's public clouds?

Content Delivery Networks (CDNs) are a traditional mechanism for both improving the delivery speed of a web site while also reducing the network load on the origin servers that provide the web site. The CDN accomplishes these two goals by offloading static content from the origin web servers into edge servers that are distributed around the Internet close to the users accessing the web site.

When a user on the Internet accesses a web site backed by a CDN, the dynamic content requests are typically serviced by the origin web servers while the static content requests are serviced by the CDN. Large CDNs are typically comprised of hundreds to thousands of edge servers globally distributed to be close to all of the Internet's users - making them ideal places to store web site content for fast retrieval by web site visitors.

The static content of a web site is what the CDN stores on behalf of the origin web site. The static content of a web site rarely changes and typically consists of the supporting files that define the content of the web site, such as, the JavaScript files, jpeg images, or CSS files. These same content files are sent to all users of the web site. In contrast, the dynamic content from a web site is personal to each web site user. The content of an eCommerce shopping cart is a great example of user specific dynamic content.

To use a CDN in web site delivery, the web site developer typically has to upload all of the site resources to the CDN manually or through an API. After upload, the developer has to rewrite all of their pages on the web site to reference the CDN location for all static assets. Consequently, the administrative cost is high, but the value is undeniable.

An alternative approach is to employ an Application Delivery Controller (ADC) in front of the web site, enhancing and securing site delivery. The modern ADC includes automated tools for optimizing web site resources. That includes reducing the size and number of static assets that have to be downloaded to complete the site - the same static content that was typically provided from the CDN. Further, images are often recompressed and optimized for the requesting device. That's right, the modern ADC will automatically tune images for iOS devices as well as high definition monitors. Because these optimizations are automated, there is near zero administrative cost to taking advantage of them. The only downside to the typical optimizing ADC is that it lives in one data center some place in the world - unlike the classic CDN.

What happens when we combine the power of the optimizing ADCs with the world's public clouds? This is the right question to ask to lead to a more manageable high-performance web site delivery platform. With software ADCs that are cloud provider independent, we can deploy an Application Delivery Network (ADN) using multiple ADCs distributed across multiple global public cloud locations. Thus, by coupling the distributed ADN with the networking logic needed to select the right ADC for each web site user, we can achieve CDN-like delivery performance for static assets directly from the ADN. That is, we can realize both the value of the traditional CDN and the value of the modern ADC to optimize the delivery of web sites for a global user base - all while keeping the administrative costs of the system relatively low.

Let's take this one step further. By augmenting the ADN with the predictive analytics necessary to accurately forecast user traffic, the ADN can be automatically placed and deployed where it can provide the absolute best performance for the users of the application - no matter where they are coming from, even as the web site user base changes over time. The tremendous value of this smart ADN is realized as the combined system continually evolves to deliver high performance to all users as the user population changes over time. This is more than an evolution from CDN to ADN, this is the revolution.

About Jay Smith
Jay Smith is the founder and CTO of Lagrange Systems, makers of an application delivery network (ADN) that improves website acceleration, availability and reliability. He has co-authored more than 30 peer reviewed articles in the area of parallel and distributed computing systems. Follow Lagrange Systems on Twitter: @LagrangeSystems

In order to post a comment you need to be registered and logged in.

Register | Sign-in

Reader Feedback: Page 1 of 1

SOA World Latest Stories
In his general session at 19th Cloud Expo, Manish Dixit, VP of Product and Engineering at Dice, discussed how Dice leverages data insights and tools to help both tech professionals and recruiters better understand how skills relate to each other and which skills are in high demand usin...
When building large, cloud-based applications that operate at a high scale, it’s important to maintain a high availability and resilience to failures. In order to do that, you must be tolerant of failures, even in light of failures in other areas of your application. “Fly two mistakes ...
Lori MacVittie is a subject matter expert on emerging technology responsible for outbound evangelism across F5's entire product suite. MacVittie has extensive development and technical architecture experience in both high-tech and enterprise organizations, in addition to network and sy...
Containers and Kubernetes allow for code portability across on-premise VMs, bare metal, or multiple cloud provider environments. Yet, despite this portability promise, developers may include configuration and application definitions that constrain or even eliminate application portabil...
Modern software design has fundamentally changed how we manage applications, causing many to turn to containers as the new virtual machine for resource management. As container adoption grows beyond stateless applications to stateful workloads, the need for persistent storage is founda...
Using new techniques of information modeling, indexing, and processing, new cloud-based systems can support cloud-based workloads previously not possible for high-throughput insurance, banking, and case-based applications. In his session at 18th Cloud Expo, John Newton, CTO, Founder an...
Subscribe to the World's Most Powerful Newsletters
Subscribe to Our Rss Feeds & Get Your SYS-CON News Live!
Click to Add our RSS Feeds to the Service of Your Choice:
Google Reader or Homepage Add to My Yahoo! Subscribe with Bloglines Subscribe in NewsGator Online
myFeedster Add to My AOL Subscribe in Rojo Add 'Hugg' to Newsburst from CNET News.com Kinja Digest View Additional SYS-CON Feeds
Publish Your Article! Please send it to editorial(at)sys-con.com!

Advertise on this site! Contact advertising(at)sys-con.com! 201 802-3021


SYS-CON Featured Whitepapers
Most Read This Week
ADS BY GOOGLE