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https://issues.apache.org/jira/browse/FLINK-23764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17406633#comment-17406633
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Fabian Paul commented on FLINK-23764:
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[~ruanhang1993] you made a good point. I will have a look into making the
group-id optional for the KafkaSource
https://issues.apache.org/jira/browse/FLINK-24051. Does it resolve your problem
or do you need more information from the RuntimeContext?
> add RuntimeContext to SourceReaderContext
> -----------------------------------------
>
> Key: FLINK-23764
> URL: https://issues.apache.org/jira/browse/FLINK-23764
> Project: Flink
> Issue Type: Improvement
> Components: Connectors / Common
> Reporter: Hang Ruan
> Priority: Major
> Labels: connector
>
> RuntimeContext is the important information for sourceReader. Not only the
> subtask index, we sometimes need to get other information in RuntimeContext
> like the operator id.
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