[jira] [Created] (KAFKA-9195) Use Randomized State Directory Names in Streams System Tests

["Bruno Cadonna (Jira)" <ji...@apache.org>]

Bruno Cadonna created KAFKA-9195:
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             Summary: Use Randomized State Directory Names in Streams System Tests 
                 Key: KAFKA-9195
                 URL: https://issues.apache.org/jira/browse/KAFKA-9195
             Project: Kafka
          Issue Type: Improvement
          Components: streams, system tests
            Reporter: Bruno Cadonna


Currently, the state directory property in streams' system tests is set to the {{PERSISTENT_ROOT}} variable. Since Streams applications in different tests have the same application ID and the state directory path consists of state directory property + application ID + task ID, it might happen that a dirty state directory of one test is re-used by another test if the state directory is not properly cleaned up. This may lead to unexpected results and false positive and/or flaky failures.

The state directory property shall be set to a randomized path inside {{PERSISTENT_ROOT}} to ensure that tests may not interfere with each other in the case of missing state clean-ups.    



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