Website Vital Signs
By: Johnathon Wright on: July 16, 2008
Here's a list I'm keeping of website Vital Signs I want to implement in my "Ruby Website Telemetry":http://blog.mustmodify.com/2008/07/ruby-website-telemetry.html application:
Database -- Primary / Backup / Reporting Database Availability -- Queries per Second -- Average Query Time -- Sort Buffer Size -- Query Cache Hit Ratio -- Thread Pool -- InnoDB Buffer Pool size / free -- IO threads -- Log Size
OS -- CPU Usage -- Available RAM -- Available Disk Space
Apache / Mongrel -- Total Users -- Total vs Available instances -- Request Queue Length -- Availability of All Expected Ports -- Log Growth
Ruby / Rails - MySQL availability - Benchmarking - Session Stability
Availability - Web Service Availability - Site Availability (using external proxy?) - email availability? - feed availability