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https://issues.apache.org/jira/browse/KAFKA-6690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16605047#comment-16605047
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Nick Afshartous commented on KAFKA-6690:
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[~balaprassanna] There is a question today in the dev list, see subject
[DISCUSS] KIP-349 Priorities for Source Topics
about the use-cases and the need for this feature. Perhaps you could respond
and elaborate on your motivational use-cases.
> Priorities for Source Topics
> ----------------------------
>
> Key: KAFKA-6690
> URL: https://issues.apache.org/jira/browse/KAFKA-6690
> Project: Kafka
> Issue Type: New Feature
> Components: consumer
> Reporter: Bala Prassanna I
> Assignee: Nick Afshartous
> Priority: Major
>
> We often encounter use cases where we need to prioritise source topics. If a
> consumer is listening more than one topic, say, HighPriorityTopic and
> LowPriorityTopic, it should consume events from LowPriorityTopic only when
> all the events from HighPriorityTopic are consumed. This is needed in Kafka
> Streams processor topologies as well.
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