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https://issues.apache.org/jira/browse/KAFKA-6020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17768241#comment-17768241
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Fiachra Corcoran commented on KAFKA-6020:
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Looking to revive this topic to gauge the level of interest. Is this something
that the community would see as beneficial?
See also https://issues.apache.org/jira/browse/KAFKA-10280
> Broker side filtering
> ---------------------
>
> Key: KAFKA-6020
> URL: https://issues.apache.org/jira/browse/KAFKA-6020
> Project: Kafka
> Issue Type: New Feature
> Components: consumer
> Reporter: Pavel Micka
> Priority: Major
> Labels: needs-kip
>
> Currently, it is not possible to filter messages on broker side. Filtering
> messages on broker side is convenient for filter with very low selectivity
> (one message in few thousands). In my case it means to transfer several GB of
> data to consumer, throw it away, take one message and do it again...
> While I understand that filtering by message body is not feasible (for
> performance reasons), I propose to filter just by message key prefix. This
> can be achieved even without any deserialization, as the prefix to be matched
> can be passed as an array (hence the broker would do just array prefix
> compare).
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