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https://issues.apache.org/jira/browse/SPARK-24093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16508814#comment-16508814
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Mingjie Tang commented on SPARK-24093:
--------------------------------------

The related topic could be viewed when users want to look at the kafka 
streaming topic information. For example, the third party job listener want to 
track this streaming job and record the topic information. 

> Make some fields of KafkaStreamWriter/InternalRowMicroBatchWriter visible to 
> outside of the classes
> ---------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-24093
>                 URL: https://issues.apache.org/jira/browse/SPARK-24093
>             Project: Spark
>          Issue Type: Wish
>          Components: Structured Streaming
>    Affects Versions: 2.3.0
>            Reporter: Weiqing Yang
>            Priority: Minor
>
> To make third parties able to get the information of streaming writer, for 
> example, the information of "writer" and "topic" which streaming data are 
> written into, this jira is created to make relevant fields of 
> KafkaStreamWriter and InternalRowMicroBatchWriter visible to outside of the 
> classes.



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