Error working with large YAML files
As part of my Application migration project, I need to pre-populate the new database with zip code data. The Rails Recipes book (very useful) has a nice recipe on extracting fixtures from live data. So, I’ve created a zips.yml file that contains all the zip code data that I can insert into the new database. However, when I try to load the fixture using this very cool rake task from Technoweenie, the YAML library throws the following exception: SystemStackError: stack level too deep.
It is possible to work-around the error by increasing the stack limit on the command-line. on Mac OSX (and probably Linux/Unix), the following command can be run before running the rake task: ulimit -s 32768. This increases the default stack limit to 32MB, which should be enough, unless the yaml file is really large, I suppose.
Does anyone know if somebody is working on fixing the YAML library to be nicer to the stack?