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https://issues.apache.org/jira/browse/KAFKA-1175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15622198#comment-15622198
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Helena Edelson commented on KAFKA-1175:
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Hoping this hasn't totally fizzled out and the ZK portion isn't a complete
barrier. If further justification is needed, in terms of distributed systems
design patterns this enables many I use. For instance if you want some
consumers on topics behaviors.anomalies.x, others on behaviors.anomalies.y and
also want to watch behaviors.anomalies.*
This is a strategy leveraged in other messaging systems which is helpful, and
lends to securing particular topics as well, for instance consumers of
behaviors.anomalies.{x or y} should not have permissions to any namespace above
x or y and should not be able to subscribe to behaviors.anomalies.*
> Hierarchical Topics
> -------------------
>
> Key: KAFKA-1175
> URL: https://issues.apache.org/jira/browse/KAFKA-1175
> Project: Kafka
> Issue Type: New Feature
> Reporter: Pradeep Gollakota
>
> Allow for creation of hierarchical topics so that related topics can be
> grouped together.
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