[jira] [Created] (KAFKA-6889) Fix Streams system test to only specify used log files

["Matthias J. Sax (JIRA)" <ji...@apache.org>]

Matthias J. Sax created KAFKA-6889:
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             Summary: Fix Streams system test to only specify used log files
                 Key: KAFKA-6889
                 URL: https://issues.apache.org/jira/browse/KAFKA-6889
             Project: Kafka
          Issue Type: Task
          Components: streams, system tests
            Reporter: Matthias J. Sax


In `streams.py` the class `StreamsTestBaseService` lists many log files that are only used in certain tests. For all tests, that do not use those log files, during the test run WARN messages are produced:
{noformat}
[WARNING - 2018-05-09 13:51:22,065 - test - compress_service_logs - lineno:131]: Error compressing log /mnt/streams/streams.stdout.0-6: service <StreamsSmokeTestJobRunnerService-0-140502617565072: num_nodes: 1, nodes: ['worker7']>: ubuntu@worker7: Command 'cd "$(dirname /mnt/streams/streams.stdout.0-6)" && f="$(basename /mnt/streams/streams.stdout.0-6)" && tar czf "$f.tgz" "$f" && rm -rf /mnt/streams/streams.stdout.0-6' returned non-zero exit status 2. Remote error message: tar: streams.stdout.0-6: Cannot stat: No such file or directory
tar: Exiting with failure status due to previous errors
{noformat}
Those message spam the output and might be miss leading. We should update the Streams system tests accordingly such that each test only specifies the log-file names it actually uses to avoid the WARN message.



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