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https://issues.apache.org/jira/browse/FLINK-5128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15692944#comment-15692944
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Renkai Ge commented on FLINK-5128:
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I want to work for this.
> Get Kafka partitions in FlinkKafkaProducer only if a partitioner is set
> -----------------------------------------------------------------------
>
> Key: FLINK-5128
> URL: https://issues.apache.org/jira/browse/FLINK-5128
> Project: Flink
> Issue Type: Improvement
> Components: Kafka Connector
> Reporter: Tzu-Li (Gordon) Tai
> Priority: Minor
>
> The fetched partitions list is only used when calling {{open(...)}} for a
> user supplied custom partitioner in {{FlinkKafkaProducer}}.
> Therefore, we can actually only fetch the partition list if the user used a
> partitioner (right now we always do the partition fetching).
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