Github user dain commented on the issue:
https://github.com/apache/orc/pull/163
We were considering doing this internally and then we ran into a production
bug where files got truncated to zero bytes. Since empty files are illegal we
could find all of the effected partitions easily, but without this you would be
stuck. A good work around would be to require empty files to end with ".empty"
but I'm not sure you can do that with M/R.
---
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.
---
