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Posted to jira@kafka.apache.org by "Matthias J. Sax (Jira)" <ji...@apache.org> on 2020/05/14 21:19:00 UTC

[jira] [Resolved] (KAFKA-9984) Should fail the subscription when pattern is empty

     [ https://issues.apache.org/jira/browse/KAFKA-9984?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias J. Sax resolved KAFKA-9984.
------------------------------------
    Fix Version/s: 2.6.0
       Resolution: Fixed

> Should fail the subscription when pattern is empty
> --------------------------------------------------
>
>                 Key: KAFKA-9984
>                 URL: https://issues.apache.org/jira/browse/KAFKA-9984
>             Project: Kafka
>          Issue Type: Bug
>          Components: consumer
>            Reporter: Boyang Chen
>            Assignee: HaiyuanZhao
>            Priority: Major
>             Fix For: 2.6.0
>
>
> We have seen a case where the consumer subscribes to an empty string pattern:
> ```
> [Consumer ...  ] Subscribed to pattern:  ''
> ```
> which doesn't make any sense and usually indicate a configuration error. The `consumer.subscribe(pattern)` call should fail with illegal argument for this case.



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