Github user JoshRosen commented on the pull request:
https://github.com/apache/spark/pull/1338#issuecomment-50211345
Whoops, I was thinking of `destroy` instead of `unpersist.` Since the
driver keeps a copy of the broadcast variable, it should always be safe to
unpersist.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
