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https://issues.apache.org/jira/browse/FLINK-12548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hugo Louro reassigned FLINK-12548:
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Assignee: Hugo Louro
> FlinkKafkaConsumer issues configuring underlying KafkaConsumer
> --------------------------------------------------------------
>
> Key: FLINK-12548
> URL: https://issues.apache.org/jira/browse/FLINK-12548
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Kafka
> Affects Versions: 1.8.0
> Reporter: Leonid Ilyevsky
> Assignee: Hugo Louro
> Priority: Major
> Attachments: KafkaError.txt
>
>
> I observe two issues that are possibly related, or at least belong to the
> same part of the code.
> I am running multiple instances of pipelines (by setting parallelism) under
> Flink cluster.
> First problem I see is the "Error registering AppInfo mbean", see attached
> stack trace [^KafkaError.txt] . From the trace I understand that it tries to
> use consumer group id as the bean name; obviously this fails as I have
> multiple instances using the same group id under the same task manager.
> Second problem is, the client id is not set at all (I do provide the
> "client.id" property when invoking FlinkKafkaConsumer constructor). This
> creates problems tracking consumers on Kafka side. On the other hand, I
> obviously do not want to set the same client id on all instances - preferably
> Flink should add maybe some UUID suffix to it or something to make it unique.
> The same unique name could be used for that mbean, this way solving the first
> problem.
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