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Philip Nee reopened KAFKA-14752: -------------------------------- > 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. > > > -- This message was sent by Atlassian Jira (v8.20.10#820010)