Whether to use a worker role or a web role : Windows Azure

Question

I am writing a small computation program with lot of read operations on blob files... Should I have to go for worker role or a web role....

Answer 1

The only difference between a web role and a worker role is that in the web role, IIS (actually Hosted Web Core) gets started and pointed at your app data directory. You can still put code in WebRole.cs that does exactly the same thing as you would do in your worker role, so the decision should really be "Do you want IIS?" If so, use a web role. If not, use a worker role.

Answer 2

Definitively a worker role, web role is, as the name suggest, designed to answer web requests, and depending on IIS settings, web requests are likely to timeout after 1min or so.