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[KIP-1136](https://cwiki.apache.org/confluence/display/KAFKA/KIP-1136%3A+Make+ConsumerGroupMetadata+an+interface) Marking ConsumerGroupMetadata class constructors deprecated. since 4.2.0 Reviewers: Andrew Schofield <aschofield@confluent.io>
Kafka client examples
This module contains some Kafka client examples.
- Start a Kafka 2.5+ local cluster with a plain listener configured on port 9092.
- Run
examples/bin/java-producer-consumer-demo.sh 10000to asynchronously send 10k records to topic1 and consume them. - Run
examples/bin/java-producer-consumer-demo.sh 10000 syncto synchronous send 10k records to topic1 and consume them. - Run
examples/bin/exactly-once-demo.sh 6 3 10000to create input-topic and output-topic with 6 partitions each, start 3 transactional application instances and process 10k records.