Maximize your drupal performance with Mercury

What is Mercury?:

Mercury is a standardized best-practice server configuration for running your Drupal website that takes the best of the collected community practices, combines them with cutting-edge open-source tools for high-performance hosting, and delivers it all in a complete package.

Mercury is combination of below mentioned server configurations.

* Varnish :
Varnish is an HTTP accelerator designed for content-heavy dynamic web sites. In contrast to other HTTP accelerators, many of which began life as client-side proxies or origin servers, Varnish was designed from the ground up as an HTTP accelerator. You can check more here. http://varnish-cache.org/

* Memcache :
Memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load. Find out more from here. http://memcached.org/

* Apache Solr :
Solr is the popular, blazing fast open source enterprise search platform from the Apache Lucene project. Its major features include powerful full-text search, hit highlighting, faceted search, dynamic clustering, database integration, and rich document (e.g., Word, PDF) handling. Solr is highly scalable, providing distributed search and index replication, and it powers the search and navigation features of many of the world's largest internet sites. Find apache solr in depth here. http://lucene.apache.org/solr

You can find article related to how to integrate with drupal 6 here. http://www.anilsagar.com/blog/how-integrate-apache-solr-drupal-6-windows...

* Press flow : http://fourkitchens.com/pressflow-makes-drupal-scale
Pressflow is a distribution of Drupal with integrated performance, scalability, availability, and testing enhancements.
Pressflow addresses a long-standing problem: High-traffic sites use stable versions of Drupal, and stable versions of Drupal are ineligible for enhancements to solve performance bottlenecks discovered after widespread deployment. Its basically a fork of drupal optimized for performance.

You can install all these things with a few clicks to configure your high performance site. Find out more from here. http://getpantheon.com/mercury/what-is-mercury

Cheers,
Anil