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David Jacot resolved KAFKA-13312. --------------------------------- Resolution: Fixed > 'NetworkDegradeTest#test_rate' should wait until iperf server is listening > -------------------------------------------------------------------------- > > Key: KAFKA-13312 > URL: https://issues.apache.org/jira/browse/KAFKA-13312 > Project: Kafka > Issue Type: Bug > Reporter: David Jacot > Assignee: David Jacot > Priority: Minor > > We have seen multiple failures with the following logs: > {noformat} > [DEBUG - 2021-09-17 09:57:58,603 - remoteaccount - _log - lineno:160]: > ubuntu@worker26: Running ssh command: iperf -i 1 -t 20 -f k -c worker25 [INFO > - 2021-09-17 09:57:58,611 - network_degrade_test - test_rate - lineno:114]: > iperf output connect failed: Connection refused > {noformat} > The iperf client can not connect to the iperf server. The test launches the > server and then immediately launches the client but there is not guarantee > that the server listens when the client is started. > It seems that we should add a condition to wait until the server prints > `Server listening` before starting the client. -- This message was sent by Atlassian Jira (v8.20.1#820001)