Github user mengxr commented on the pull request:
https://github.com/apache/spark/pull/929#issuecomment-50380948
@witgo We don't need to checkpoint both users and products, but only the
smaller one. For the initial version, it is fine to checkpoint either of them.
We should also do checkpointing in explicit ALS to clean intermediate shuffle
data. Could you add that as well and help test? Thanks!
---
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.
---
