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PUBLIC MARKS from camel with tags code & application

November 2008

Developer's Guide - AJAX Libraries API - Google Code

The AJAX Libraries API is a content distribution network and loading architecture for the most popular open source JavaScript libraries. By using the google.load() method, your application has high speed, globally available access to a growing list of the most popular JavaScript open source libraries.

April 2008

scalr - Google Code

by 3 others
Scalr is a fully redundant, self-curing and self-scaling hosting environment utilizing Amazon's EC2. It allows you to create server farms through a web-based interface using prebuilt AMI's for load balancers (pound or nginx), app servers (apache, others), databases (mysql master-slave, others), and a generic AMI to build on top of. The health of the farm is continuously monitored and maintained. When the Load Average on a type of node goes above a configurable threshold a new node is inserted into the farm to spread the load and the cluster is reconfigured. When a node crashes a new machine of that type is inserted into the farm to replace it. 4 AMI's are provided for load balancers, mysql databases, application servers, and a generic base image to customize. Scalr allows you to further customize each image, bundle the image and use that for future nodes that are inserted into the farm. You can make changes to one machine and use that for a specific type of node. New machines of this type will be brought online to meet current levels and the old machines are terminated one by one. The project is still very young, but we're hoping that by open sourcing it the AWS development community can turn this into a robust hosting platform and give users an alternative to the current fee based services available.

March 2008

Automating deployment and activation of virtual images

Virtualization offers advantages that include server consolidation, isolation, rapid provisioning, and improved change management processes. Since virtualization breaks the hardware dependency and isolates virtual machines from details about the physical servers on which they are hosted, virtual images can be moved from one hosting platform to another. They can also be cloned to create more virtual machines, as desired. One of the challenges with cloning virtual images is handling operating system, network, and application specific customization. This article provides a sample framework for automating virtual image activation on new host platforms. This article, along with a previous article on Using virtual image templates to deploy WebSphere Application Server, demonstrates an automated approach for quickly and easily provisioning new WebSphere Application Server environments. The sample deployment and activation code included with this article is independent of WebSphere Application Server and can be used in conjunction with other software inside a virtual image. The specific example provided here is for WebSphere Application Server V6 in VMware or XEN virtual images, using SUSE V10 as the guest operating system. The activation techniques described in this article can be used in conjunction with IBM Tivoli® Provisioning Manager as described in Using Tivoli Provisioning Manager to deploy composite virtual appliances.

February 2008

Le tuning Apache pour augmenter les performances de votre application web : Ergonomie, Rails et Architecture de l'information web (2.0)

by 1 other
Les problèmes de montée en charge sont choses courantes pour un site ou une application web une fois atteint un certain succès. Ces derniers sont bien trop souvent négligés, généralement jusqu’au jour où se trouve atteinte la limite critique entre l’inconfort et l’instabilité. Le trend actuel veut qu’il soit à la fois plus simple et moins cher de rajouter des machines que de reprendre son code en profondeur pour l’optimiser. Encore faut-il que l’application permette un redimensionnement de ce genre sans rentrer dans une phase de refactoring complet. Évidemment, avant d’en arriver à une solution aussi lourde, il vaut mieux s’assurer que tout a été fait pour exploiter au mieux les ressources disponibles, et cela passe notamment par un peu d’optimisation côté serveur.

ath - Google Code

full featured application load balancer for reverse proxy apache httpd mod_proxy

December 2006

Nexen.net : portail PHP et MySQL - Générateur de profils de tests

Fake Name Generator génère des fiches d'identitée complètes et crédibles, du point de vue des bases de données. Nom, prénom, carte visa, adresse, téléphone, code postal, en fonction de la langue, du pays (format) et du pays (identité). Ces informations, totalement inventées, sont très utiles pour réaliser des tests d'interface, avec des valeurs crédibles, mais inventée.

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