John Fung created KAFKA-716: ------------------------------- Summary: SimpleConsumerPerformance does not consume all available messages Key: KAFKA-716 URL: https://issues.apache.org/jira/browse/KAFKA-716 Project: Kafka Issue Type: Bug Reporter: John Fung
To reproduce the issue: 1. Start 1 zookeeper 2. Start 1 broker 3. Send some messages 4. Start SimpleConsumerPerformance to consume messages. The only way to consume all messages is to set the fetch-size to be greater than the log segment file size. 5. This output shows that SimpleConsumerPerformance consumes only 6 messages: $ bin/kafka-run-class.sh kafka.perf.SimpleConsumerPerformance --server kafka://host1:9092 --topic topic_001 --fetch-size 2048 --partition 0 start.time, end.time, fetch.size, data.consumed.in.MB, MB.sec, data.consumed.in.nMsg, nMsg.sec 2013-01-21 15:09:21:124, 2013-01-21 15:09:21:165, 2048, 0.0059, 0.1429, 6, 146.3415 6. This output shows that ConsoleConsumer consumes all 5500 messages (same test as the above) $ bin/kafka-run-class.sh kafka.consumer.ConsoleConsumer --zookeeper host2:2181 --topic topic_001 --consumer-timeout-ms 5000 --formatter kafka.consumer.ChecksumMessageFormatter --from-beginning | grep ^checksum | wc -l Consumed 5500 messages 5500 -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira