Github user smarthi commented on the pull request:
https://github.com/apache/flink/pull/1952#issuecomment-216409045
ElasticSearch 2.x requires jackson >= 2.6.2, hence the Elastic 2.x
connector jackson version is set at 2.7.x. Locally, I changed the Jackson
version to be 2.7.x in the parent pom and didn't see any issues or tests
failures. I think its safe to change the jackson.version to 2.7.4 in parent
pom. If so, please remove the <jackson.version> in ElasticSearch2/pom.xml
---
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.
---
