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https://issues.apache.org/jira/browse/FLINK-9621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16541390#comment-16541390
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Aljoscha Krettek commented on FLINK-9621:
-----------------------------------------
I think the problem is that we use the same properties for configuring both the
Flink portion and the connector and the Kafka portion. And Kafka issues
warnings about the flink-specific settings it doesn't know about.
> Warning when enabling partition discovery
> -----------------------------------------
>
> Key: FLINK-9621
> URL: https://issues.apache.org/jira/browse/FLINK-9621
> Project: Flink
> Issue Type: Improvement
> Components: Kafka Connector
> Affects Versions: 1.5.0
> Reporter: Olivier Zembri
> Priority: Minor
>
> When partition discovery is enabled by setting a non-negative value for
> {{flink.partition-discovery.interval-millis}} in the properties configuration
> when creating a new Kafka consumer using FlinkKafkaConsumer011 as described
> in link
> https://ci.apache.org/projects/flink/flink-docs-release-1.5/dev/connectors/kafka.html
> an unexpected warning is raised at runtime:
> The configuration 'flink.partition-discovery.interval-millis' was supplied
> but isn't a known config.
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