don't use heroku's scheduler - it's a best effort scheduler that doesn't guarantee it will even execute your jobs at the times you set.

the company i work for runs a rails app and we've ported almost everything over to running with the clock gem instead of with heroku's scheduler.

this has taken openredis offline: https://twitter.com/openredis

heroku is also reporting issues:

https://status.heroku.com/incidents/554

this affected me as well, i had to provision a new database and promote it to master in order to bring my app back online

I had to do the same and Heroku support is non-responsive. This is beyond frustrating.