While I was away on vacation last week, Drupaltherapy.com got hosed by the shared hosting provider I've grown to hate. Days later I was informed that "due to dozens of database queries per second for several hours", all account services were suspended. Dozens of queries is exactly what a database should do, but apparently not for my twitchy host.
This reinforces one of my workshop lessons about shared web hosting services, the you-get-what-you-pay-for lesson. I've configured and managed Drupal in environments from shared to dedicated and the difference in price is reflected most brightly by the level of response and accountability. Dollar per pound, customers shouldn't really expect top levels of service for $4.99/mo.
There are good tips out there on reducing resource consumption, from caching and CSS aggregating as told by John Forsythe to optimizing your custom database queries especially in views.
But nothing can prepare you for a cheapo host pulling the plug and heading home for the weekend. No sites and no email, I was inches from a nice cliff I could have thrown myself from (pictured above). Drupaltherapy is now hosted by a new company and shouldn't be winking out any time soon.
Apologies to any folks who looked but could not find.

