David Arthur created KAFKA-10701:
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Summary: First line of detailed stats from consumer-perf-test.sh
incorrect
Key: KAFKA-10701
URL: https://issues.apache.org/jira/browse/KAFKA-10701
Project: Kafka
Issue Type: Bug
Components: tools
Reporter: David Arthur
When running the console perf test with {{--show-detailed-stats}}, the first
line out of output has incorrect results
{code}
$ ./bin/kafka-consumer-perf-test.sh --bootstrap-server localhost:9092 --topic
test --messages 10000000 --reporting-interval 1000 --show-detailed-stats
time, threadId, data.consumed.in.MB, MB.sec, data.consumed.in.nMsg, nMsg.sec,
rebalance.time.ms, fetch.time.ms, fetch.MB.sec, fetch.nMsg.sec
2020-11-06 11:57:01:420, 0, 275.3878, 275.3878, 288765, 288765.0000,
1604681820723, -1604681819723, 0.0000, 0.0000
2020-11-06 11:57:02:420, 0, 952.1456, 676.7578, 998397, 709632.0000, 0, 1000,
676.7578, 709632.0000
2020-11-06 11:57:03:420, 0, 1654.2940, 702.1484, 1734653, 736256.0000, 0, 1000,
702.1484, 736256.0000
2020-11-06 11:57:04:420, 0, 2492.1389, 837.8448, 2613197, 878544.0000, 0, 1000,
837.8448, 878544.0000
2020-11-06 11:57:05:420, 0, 3403.2993, 911.1605, 3568618, 955421.0000, 0, 1000,
911.1605, 955421.0000
2020-11-06 11:57:06:420, 0, 4204.1540, 800.8547, 4408375, 839757.0000, 0, 1000,
800.8547, 839757.0000
2020-11-06 11:57:07:420, 0, 4747.1275, 542.9735, 4977724, 569349.0000, 0, 1000,
542.9735, 569349.0000
2020-11-06 11:57:08:420, 0, 5282.2266, 535.0990, 5538816, 561092.0000, 0, 1000,
535.0990, 561092.0000
2020-11-06 11:57:09:420, 0, 5824.3732, 542.1467, 6107298, 568482.0000, 0, 1000,
542.1467, 568482.0000
{code}
This seems to be due to incorrect initialization of the {joinStart} variable.
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