"migrate" is taking forever

Problem

When running a native installation, the "edxapp: migrate" step seems stuck:

TASK [edxapp : migrate] ********************************************************

Solution

Normally, "migrate" should take about 20-30 minutes.  If it's taken longer than that (an hour or more), then the problem is likely that your machine doesn't have enough RAM.  You will need to start the install over on a larger machine.