edx/configuration — pull request #537 by wedaly (2013-12-09 16:34:30+00:00)
Title: Configure NLTK_DATA environment variable for ORA celery workers

The `nltk` library uses the `NLTK_DATA` environment variable to find data, which we store in `/edx/var/ora` instead of the default location. We had this correctly configured for ORA, but not for the ORA celery workers. As a result, ML model creation was failing in the sandbox.