Luke Chen created KAFKA-14752: --------------------------------- Summary: 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
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)