I'm planning to move my prototype confluence installation at least a couple times, from a basic PC, to a powerful PC, and then (I'm sorta guessing here) to a Linux server, and then maybe an enterprise server. It occurs to me to use my fav opensource database (MySQL) as the storage mechanism so I can just unload/reload data at each step. Does this make sense? Am I over-complicating things? Should just trust Atlassian migration tools and take the path of least resistance with each installation? For example: just use the built-in database for my PCs and wait to use a database with the Linux server.
It turns out that importing from a backup is pretty "safe". I used it to convert my little installation from a built-in database to an external Postgresql database.
We apparently hung confluence by doing a huge nasty import (from word) running on the internal database, so I started to get nervous. We abandoned that little database and started again since we had only done some learning experiments. I restared quickly with the built-in base again and then, after a couple weeks of getting some nice test content looking decent, I created the new install with Postgresql and ported the data over. It worked perfectly. And the benefit (besides the comfort that I have a proper database running) is that, even with the little system I'm hosting this on, the whole thing seems to run a lot faster.
For those who might be curious about my "little installation", I have an aging 4-core (8-thread) I7 portable computer with 8 GB member running Windows 7 pro. Confluence is running on an Ubuntu 12.04 guest of Virtual Box. I gave it 4GB of the memory and 4 of the processors. Confluence is very snappy in this environment - kudo's to the performance team.
The ubuntu/confluence installation with postgresql was a piece of cake (compared to MySQL, at least). Using a VM means that if someone bequeathes me better hardware (and if I get money for more licences), there's no rebuilding. I just run-up Virtual Box again on any kind of monster host and copy the Ubuntu image to it. My backups are being sent to a large external drive managed by Windows.
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