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https://issues.apache.org/jira/browse/SPARK-58712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18103666#comment-18103666
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Uroš Bojanić commented on SPARK-58712:
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In progress: https://github.com/apache/spark/pull/57930.
> Fix incorrect usage strings in four examples
> --------------------------------------------
>
> Key: SPARK-58712
> URL: https://issues.apache.org/jira/browse/SPARK-58712
> Project: Spark
> Issue Type: Bug
> Components: Examples
> Affects Versions: 4.3.0
> Reporter: Uroš Bojanić
> Priority: Major
> Labels: pull-request-available
>
> Four usage strings disagree with the code around them.
> DirectKafkaWordCount and DirectKerberizedKafkaWordCount document "<brokers>
> <topics>" in the class comment, but both require three arguments: the arity
> check is args.length < 3, the arguments are destructured as brokers, groupId
> and topics, the runtime usage message already prints the three argument form,
> and the comment itself documents <groupId> on the following line. SPARK-27973
> corrected the runtime message for the first example but left the comment
> behind.
> SkewedGroupByTest documents "Usage: GroupByTest", naming a different example
> that also exists, so copying the line runs the wrong job.
> JavaRecoverableNetworkWordCount prints "You arguments were"; its Scala
> counterpart already reads "Your arguments were".
> Comment and message text only.
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