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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