Update:Archive/2.0/Architecture and General Design/Infrastructure

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Update: Home Page » Infrastructure

Introduction

This page will describe the UMO infrastructure supporting the UMO service.

Caching

We are currently using Squid for caching of images and content. This has been quite scalable but we need to start considering using Apache2 + mod_cache/mod_proxy to be able to handle more types of HTTP 1.1 requests.

Database

We are using MySQL 4.0.22 for the database. Moving forward, we will be looking at using MySQL 4.1.x in order to take advantage of subselects. We currently have this all on one database server but moving forward we need to consider a master/slave arrangement for redundancy sake.

Web/Application Servers

We are using Apache2 + PHP 4 on top of Linux machines right now. Right now, we only have one application server and we need to fix that asap. The current application server is running RHEL 3.

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