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Posted to issues@flink.apache.org by "Danny Chen (Jira)" <ji...@apache.org> on 2020/08/31 09:24:00 UTC

[jira] [Comment Edited] (FLINK-19099) consumer kafka message repeat

    [ https://issues.apache.org/jira/browse/FLINK-19099?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17187592#comment-17187592 ] 

Danny Chen edited comment on FLINK-19099 at 8/31/20, 9:23 AM:
--------------------------------------------------------------

Before FLINK-15221, the SQL Kafka connector only supports "at least once" semantic, where the records may duplicate when there are failures. You can use data stream instead.


was (Author: danny0405):
Before Flink-15221, the SQL Kafka connector only supports "at least once" semantic, where the records may duplicate when there are failures. You can use data stream instead.

> consumer kafka message repeat
> -----------------------------
>
>                 Key: FLINK-19099
>                 URL: https://issues.apache.org/jira/browse/FLINK-19099
>             Project: Flink
>          Issue Type: Bug
>          Components: API / DataStream, Connectors / Kafka
>    Affects Versions: 1.11.0
>            Reporter: zouwenlong
>            Priority: Major
>
> when taksmanager be killed ,my job consume some message , but the offset in not commit,
> then restart it ,my job consume kafka message repeat,  I used checkpoint  and set 5 seconds ,
> I think this is a very common problem，how to solve this problem？



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