Hello all.
As of about 3 months ago I got CF9 64-bit running successfully on a Windows 2008 R2 64-bit server, as well as 64-bit PHP.
It was a long couple of days getting all of this to work happily together, but that's an entirely different discussion, which I'm happy to assist with if anyone need some help.
My question is for someone with some experience and understanding of the relationship between IIS 7, Cold Fusion and App Pools.
We have 8GB of RAM on a 3.2GHz dual processor box. And on this particular server we have about 350 cold fusion websites. All very low traffic sites, I should add. Like maybe averaging 1000 page clicks a day each. Anyway these sites were running flawlessly on a 2GB of RAM box with dual 1 GHz processors. And honestly it ran more reliably than it does now.
What role do Application Pools play in a dedicated Cold Fusion environment?
Since only one instance of JRun is ever initiated, CF crashes when any request overwhelms the box and locks it up. So, kind of defeats the purpose of independent App Pools in my opinion.
During my setup and transfer of these site, I gave them each their own independent App Pool, which are now individual IIS Worker Process instances, each using about 10MB of RAM. So, for example, if interaction is happening with 200 websites they eat up 2GB of RAM, which, although not great, is fine right now. The problem is that I plan to let this machine grow to 500 sites before adding another box, but I'm concerned about performance.
THE BASIC QUESTIONS:
Does cold fusion need independent App Pools for each web site or can all of these websites run under the DefaultAppPool?
And what are the pros and cons of both options?
Is there some default setting I should change that will tell active w3wp.exe instances to shutdown if no activity occurs for a certain period of time to free up memory.
Thanks for any input.