Performance and Scalability

The Edgecast module connects your Drupal site to the CDN so that when you edit content the CDN knows to update it's cache quicker than the standard expiry time you've defined (usually hours or days).

When used in conjunction with the Cache Expiration module you'll get support for Nodes, User profiles, comments and more. When used standalone it will purge the cache just for node updates.

This is a fork of the LABjs module: http://drupal.org/project/labjs

The purpose for this is to improve the admin side of it, add in debugging functionality, and fix bugs as I encounter them.

Watchdog File Module

WATCHDOG FILE is a module that records all watchdog() events to a log file on your server rather than using the database. The goals are to reduce database load in general, and to provide an easier way of keeping track of your watchdog activity.

This module is intended to replace the Watchdog module.

It looks like the Raw Log module (http://drupal/project/rawlog) is similar to this module, but it is only available for Drupal 6.x.

This module is a lightweight add-on to the CDN module which will rewrite the URLs of any images generated within a View.

Installation:
Assuming you have the CDN module installed and configured properly, simple install the CDN Views module as any other module and you should see your Views output rewriten URLs. There is not an admin UI to this module or any sort of configuration.

This module provides a cache class exposing hooks allowing other code to intercept calls to the caching layer. by implementing those hooks it is possible to alter expiry before an object is saved to the database or to prevent a cache flush under some condition.

Installation

In order to expose the cache object hooks only for the cache_form bin, put the following lines into your settings.php:

Varnish Tagged Cache Invalidation

The aim of this module is to greatly reduce the load to the site's database by using "virtualized" fields instead of "real" FAPI fields.

If you render your content on multiple domains whilst editing your content via a sub domain then when it comes to a cache clear / purge it will get tricky sending all the purge urls to your proxy and CDN services.

The basic Content Expiration module only generates and sends urls based on the path where the content is being edited.

This module allows you to specify a list of domains which should all be purged at the same time.

Overview
This module allows you to speed up the loading of the page. The entire node object is stored in a single field nodes (serialize).

Installation
Download and install module.

Features

Drupal module for regression site testing.
It's a monitoring tool which is notifying the webmaster about a new changes on the specific pages. These changes can be marked as regression or can be ignored for the future changes.