Github user fhueske commented on the pull request:
https://github.com/apache/flink/pull/983#issuecomment-127693034
The empty file is exactly the problem.
What happens if you read that file with a TypeSerializerInpitFormat typed
for Tuple0? It will not return the same amount of Tuple0 objects as were
"written" to it. That's the problem with de/serializers that do not read/write
anything. This problem can occur anywhere in Flink's engine where data is
serialized.
---
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 infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
