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https://issues.apache.org/jira/browse/KAFKA-7849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16888340#comment-16888340
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Matthias J. Sax commented on KAFKA-7849:
----------------------------------------
Thanks for you interest [~omarsmak]. Assigned the ticket to you; you can also
self-assign.
The subscription happens in `StreamThread` methods `runLoop()` and
`enforceRebalance()`. Hope this helps to get started. Let us know if you have
any other question.s
> Warning when adding GlobalKTable
> --------------------------------
>
> Key: KAFKA-7849
> URL: https://issues.apache.org/jira/browse/KAFKA-7849
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 2.1.0
> Reporter: Dmitry Minkovsky
> Assignee: Omar Al-Safi
> Priority: Minor
> Labels: newbie
>
> Per
> https://lists.apache.org/thread.html/59c119be8a2723c501e0653fa3ed571e8c09be40d5b5170c151528b5@%3Cusers.kafka.apache.org%3E
>
> When I add a GlobalKTable for topic "message-write-service-user-ids-by-email"
> to my topology, I get this warning:
>
> [2019-01-19 12:18:14,008] WARN
> (org.apache.kafka.clients.consumer.internals.ConsumerCoordinator:421)
> [Consumer
> clientId=message-write-service-55f2ca4d-0efc-4344-90d3-955f9f5a65fd-StreamThread-2-consumer,
> groupId=message-write-service] The following subscribed topics are not
> assigned to any members: [message-write-service-user-ids-by-email]
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