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https://issues.apache.org/jira/browse/FLUME-3100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16047682#comment-16047682
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ASF GitHub Bot commented on FLUME-3100:
---------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/flume/pull/137
> Support arbitrary header substitution for topic of Kafka
> --------------------------------------------------------
>
> Key: FLUME-3100
> URL: https://issues.apache.org/jira/browse/FLUME-3100
> Project: Flume
> Issue Type: Improvement
> Components: Sinks+Sources
> Reporter: Takafumi Saito
> Priority: Minor
>
> Kafka Sink supports arbitrary header substitution which replace a substring
> ${A} in "kafka.topic" property with a value of header named “A”.
> Using the substitution become possible to dynamically select the topic by
> combining one or more values of event headers.
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