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https://issues.apache.org/jira/browse/FLINK-7224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16097927#comment-16097927
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ASF GitHub Bot commented on FLINK-7224:
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Github user tzulitai closed the pull request at:
https://github.com/apache/flink/pull/4363
> Incorrect Javadoc description in all Kafka consumer versions
> ------------------------------------------------------------
>
> Key: FLINK-7224
> URL: https://issues.apache.org/jira/browse/FLINK-7224
> Project: Flink
> Issue Type: Improvement
> Components: Kafka Connector
> Affects Versions: 1.3.1, 1.4.0
> Reporter: Tzu-Li (Gordon) Tai
> Assignee: Tzu-Li (Gordon) Tai
> Fix For: 1.4.0, 1.3.2
>
>
> Currently, all Kafka consumer version still have this in the Javadoc:
> {code}
> The implementation currently accesses partition metadata when the consumer
> is constructed. That means that the client that submits the program needs to
> be able to
> reach the Kafka brokers or ZooKeeper.
> {code}
> This is also the case for the documentation:
> {code}
> The current FlinkKafkaConsumer implementation will establish a connection
> from the client (when calling the constructor) for querying the list of
> topics and partitions.
> For this to work, the consumer needs to be able to access the consumers from
> the machine submitting the job to the Flink cluster. If you experience any
> issues with the Kafka consumer on the client side, the client log might
> contain information about failed requests, etc.
> {code}
> These statements are no longer true since starting from Flink 1.3. partition
> metadata happens only in {{open()}}.
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