passenger-ruby-heroku-demo
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phusion
min-instances and max-pool-size
Hi, first of all, I'm slightly confused why the Procfile in this example differs slightly from your new deployment walkthrough - is there a reason for this?
Secondly, in your Optimization Guide you write that process spawning should be minimized by setting max-pool-size and min-instances to the same value. Isn't heroku the perfect place to follow this advice, because there will always only be 1 app on a server? If it is indeed like that, maybe it makes sense to either adjust this example repo, or add this advice to the README.
What do you think?
All the best, Fabian
first of all, I'm slightly confused why the Procfile in this example differs slightly from your new deployment walkthrough - is there a reason for this?
I do not understand what you mean. The Procfile in the README is the exact same as the one in the deployment walkthrough. They both tell you to set web: bundle exec passenger start -p $PORT --max-pool-size 3.
Secondly, in your Optimization Guide you write that process spawning should be minimized by setting max-pool-size and min-instances to the same value. Isn't heroku the perfect place to follow this advice, because there will always only be 1 app on a server? If it is indeed like that, maybe it makes sense to either adjust this example repo, or add this advice to the README.
Yes, you have a point there. On the other hand, I do not want to bother people too much with configuration options when they are just starting to understand Passenger.
Ah, I'm sorry about the first point, you are rights that in the README it is identical - however the file in the repository (https://github.com/phusion/passenger-ruby-heroku-demo/blob/master/Procfile) is slightly different. That's what I looked at.