[jira] [Created] (FLINK-27318) KafkaSink: when init transaction, it take too long to get a producerId with epoch=0

["Zhengqi Zhang (Jira)" <ji...@apache.org>]

Zhengqi Zhang created FLINK-27318:
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             Summary: KafkaSink: when init transaction, it take too long to get a producerId with epoch=0
                 Key: FLINK-27318
                 URL: https://issues.apache.org/jira/browse/FLINK-27318
             Project: Flink
          Issue Type: Improvement
          Components: Connectors / Kafka
    Affects Versions: 1.14.4
            Reporter: Zhengqi Zhang
         Attachments: image-2022-04-20-17-34-48-207.png

as we can see, the new KafkaSink aborts all transactions that have been created by a subtask in a previous run, only return when get a producerId was unused before(epoch=0). But this can take a long time, especially if the task has been started and cancelled many times before. In my tests, it even took {*}10 minutes{*}. Is there a better way to solve this problem, or {*}do what FlinkKafkaProducer did{*}.

!image-2022-04-20-17-34-48-207.png|width=556,height=412!



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