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https://issues.apache.org/jira/browse/KAFKA-5588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16089819#comment-16089819
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Paolo Patierno commented on KAFKA-5588:
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I have just written the
[KIP-176|https://cwiki.apache.org/confluence/display/KAFKA/KIP-176%3A+Remove+deprecated+new-consumer+option+in+ConsoleConsumer+tool]
for this and I'm going to start the discussion in the dev mailing list.
> ConsoleConsumer : uselss --new-consumer option
> ----------------------------------------------
>
> Key: KAFKA-5588
> URL: https://issues.apache.org/jira/browse/KAFKA-5588
> Project: Kafka
> Issue Type: Bug
> Reporter: Paolo Patierno
> Assignee: Paolo Patierno
> Priority: Minor
>
> Hi,
> it seems to me that the --new-consumer option on the ConsoleConsumer is
> useless.
> The useOldConsumer var is related to specify --zookeeper on the command line
> but then the ----bootstrap-server option (or the --new-consumer) can't be
> used.
> If you use --bootstrap-server option then the new consumer is used
> automatically so no need for --new-consumer.
> It turns out the using the old or new consumer is just related on using
> --zookeeper or --bootstrap-server option (which can't be used together, so I
> can't use new consumer connecting to zookeeper).
> It's also clear when you use --zookeeper for the old consumer and the output
> from help says :
> "Consider using the new consumer by passing [bootstrap-server] instead of
> [zookeeper]"
> I'm going to remove the --new-consumer option from the tool.
> Thanks,
> Paolo.
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