[jira] [Commented] (KAFKA-3829) Warn that kafka-connect group.id must not conflict with connector names

["Jason Gustafson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-3829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15517622#comment-15517622 ] 

Jason Gustafson commented on KAFKA-3829:
----------------------------------------

[~liquanpei] Going to go ahead and pick this up since the code freeze is just a week out. Let me know if you have time and would rather finish it yourself.

> Warn that kafka-connect group.id must not conflict with connector names
> -----------------------------------------------------------------------
>
>                 Key: KAFKA-3829
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3829
>             Project: Kafka
>          Issue Type: Improvement
>          Components: KafkaConnect
>    Affects Versions: 0.9.0.1
>            Reporter: Barry Kaplan
>            Assignee: Liquan Pei
>            Priority: Critical
>              Labels: documentation
>             Fix For: 0.10.1.0
>
>
> If the group.id value happens to have the same value as a connector names the following error will be issued:
> {quote}
> Attempt to join group connect-elasticsearch-indexer failed due to: The group member's supported protocols are incompatible with those of existing members.
> {quote}
> Maybe the documentation for Distributed Worker Configuration group.id could be worded:
> {quote}
> A unique string that identifies the Connect cluster group this worker belongs to. This value must be different than all connector configuration 'name' properties.
> {quote}



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