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https://issues.apache.org/jira/browse/KAFKA-14752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Philip Nee reopened KAFKA-14752:
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> improve kafka examples under examples package
> ---------------------------------------------
>
> Key: KAFKA-14752
> URL: https://issues.apache.org/jira/browse/KAFKA-14752
> Project: Kafka
> Issue Type: Improvement
> Reporter: Luke Chen
> Assignee: Federico Valeri
> Priority: Major
> Labels: newbie, newbie++
>
> Kafka provided some examples under "examples" package. Currently we provided
> * java-producer-consumer-demo, which is to produce 10000 records and then
> consume all of them
> * exactly-once-demo, which is to produce records -> consume -> process ->
> consume.
> Among them, the base component is producer and consumer. However, I found the
> producer and consumer example is not in a good form. For example:
> # Both consumer and producer doesn't gracefully close the resource after
> completed
> # The example doesn't provide a good example to handle different kind of
> exceptions. It's just a happy path example
> # No clear comment to instruct users why we should do this, and what it is
> doing for each operation.
>
> Furthermore, while running both the examples, I saw flood of logs output
> because we print one line for message sent, and one line for message
> received. In java-producer-consumer-demo, there will be 10000 records
> sent/received, so > 20000 lines of logs output. Same for exactly-once-demo.
> Maybe we should consider to reduce the record number.
>
> One more thing, in exactly-once-demo.java, there are clear class java doc in
> the demo file, but there's nothing in java-producer-consumer-demo.java. We
> should also improve that.
>
>
>
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