[jira] [Created] (KAFKA-21047) Make Kafka Connect KIP-909 ready

["Matthias J. Sax (Jira)" <ji...@apache.org>]

Matthias J. Sax created KAFKA-21047:
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             Summary: Make Kafka Connect KIP-909 ready
                 Key: KAFKA-21047
                 URL: https://issues.apache.org/jira/browse/KAFKA-21047
             Project: Kafka
          Issue Type: Improvement
          Components: connect
    Affects Versions: 4.4.0
            Reporter: Matthias J. Sax


KIP-909 ships improved error handling behavior for Kafka clients with regard to DNS changes, and broker re-discovery. However, it also introduces behavior changes and new exceptions when enabled. For this reason, it's locked down in Kafka Connect at the moment and cannot be enable.

This ticket is about updating KC code base do become KIP-909 ready: we need to change the code to allow to handle the new exceptions correctly.

Open question: KIP-909 is disabled on the clients because it requires code changes to handle the new behavior correctly. We could consider to enable it by default in Kafka Connect right away, w/o the need of a major release. If we update KC code to handle it correctly, there should not be any backward compatibility concerns requiring to wait for 5.0 release.



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