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

["Martijn Visser (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-27318?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martijn Visser closed FLINK-27318.
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    Resolution: Won't Fix

> 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: Bug
>          Components: Connectors / Kafka
>    Affects Versions: 1.14.4
>            Reporter: Zhengqi Zhang
>            Priority: Major
>         Attachments: image-2022-04-20-17-34-48-207.png, image-2022-04-20-17-59-27-397.png, image-2022-05-01-16-50-27-264.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-2022-04-20-17-59-27-397.png|width=534,height=256!
> !image-2022-04-20-17-34-48-207.png|width=556,height=412!



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