I have Meteor application which is run on Heroku platform using 1 dyno. When I increase number of dynos it stops working, reporting some problems with XHR (ERROR 404) on client side.
Does anybody successfully run Meteor app on two or more Heroku dynos? If so, what should I do in order to get it working?
No, unfortunately Meteor does not work on Heroku with more than one dyno. Meteor needs session affinity, which Heroku does not currently offer.
Meteor needs session affinity: Running meteor in a cluster and real-time changes
Heroku does not support session affinity: https://devcenter.heroku.com/articles/intro-for-java-developers