[jira] [Created] (FLINK-16125) Make zookeeper.connect optional for Kafka connectors

[Shang Yuanchun (Jira)]

Jiangjie Qin created FLINK-16125:
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             Summary: Make zookeeper.connect optional for Kafka connectors
                 Key: FLINK-16125
                 URL: https://issues.apache.org/jira/browse/FLINK-16125
             Project: Flink
          Issue Type: Improvement
          Components: Connectors / Kafka
    Affects Versions: 1.10.0
            Reporter: Jiangjie Qin


FLINK-14649 accidentally changed the connector option {{zookeeper.connect}} from optional to required for all the Kafka connector versions, while it is only required for 0.8. 

The fix would be make it optional again. This does mean that people who are using Kafka 0.8 might miss this option and get an error from Kafka code instead of Flink code, but given that Kafka 0.8 probably has a small user base now and users will still get an error. I think it is fine.



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