Monday, March 13, 2006

IIS Worker Process Recycling and Prime Numbers

To prevent all your application pools from recycling at the same time ... you should follow the way of the cicada! No I haven't been smoking crack. The theory goes like this: if you have two application pools recycled every M and N hours respectively (where M and N are both prime) then their recycles will only coincide every M x N hours. So, for the default 1740 minutes (29 hours) and the next prime up (31 hours), you're only going to have the problem once every 37ish days!

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