[jira] [Created] (FLINK-14943) make callback and related members protected so that user can override the callback handling

[Shang Yuanchun (Jira)]

Steven Zhen Wu created FLINK-14943:
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             Summary: make callback and related members protected so that user can override the callback handling
                 Key: FLINK-14943
                 URL: https://issues.apache.org/jira/browse/FLINK-14943
             Project: Flink
          Issue Type: Improvement
          Components: Connectors / Kafka
    Affects Versions: 1.9.1
            Reporter: Steven Zhen Wu


FlinkKafkaProducer's `logFailuresOnly` is either log everything or fail everything. We want to selectively drop/skip records on certain exceptions, like `RecordTooLargeException`. So we want to override the callback when extending FlinkKafkaProducer class. Hence this request of making callback, asyncException, and acknowledgeMessage protected.



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