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https://issues.apache.org/jira/browse/KAFKA-9195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias J. Sax reassigned KAFKA-9195:
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Assignee: (was: Matthias J. Sax)
> 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
> Priority: Major
>
> 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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