Github user NicoK commented on the issue:
https://github.com/apache/flink/pull/4293
sounds like a good plan but in the past it wasn't clear where the caches
got corrupted, i.e. by travis during cache restore, or by mvn during the build.
If the former is still possible, we could only fix it for the next build.
Should I try to introducing this technique?
---
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.
---
