We had initially started to develop a chat app with ejabberd and quickly ran into hurdles with documentation and support. I came across Openfire and was pretty impressed with the documentation and community support.
I was able to also build a OF on ubuntu server (AWS) fairly easily but I was wondering how well this platform scales? If you have specifics with AWS instances and/ or costs that would be extremely helpful. We have the basics, 1-on-1/ group chat, presence, photo and video will be only sent thru as a link after uploaded to the cloud (s3). No voice or video conference as of yet.
Thank you in advance!