I recently tried moving from MySQL to MariaDB, and was truly surprised with the results - everything works just fine, didn't even have to recreate users/databases. Well, everything except Redmine (and I would assume, and other Passenger app).
In the last post, I discussed why you need to bother with a project management tool like RedMine. And I'm quite certain I mentioned that it's kind of a pain to install in RedHat... so here's a step by step howto for future reference.
If you have ever been involved in any sort of project, you will know that one of the biggest pains involved in the process is communicating with whoever had the idea for the project. They always "thought it a bit different", or even better "didn't expect it would look like this", even when their project is 100% up to their specs. This post is about the what, next up is the how.