[jira] [Created] (KAFKA-7367) Verify that Streams never creates RocksDB stores unless they are needed

["John Roesler (JIRA)" <ji...@apache.org>]

John Roesler created KAFKA-7367:
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             Summary: Verify that Streams never creates RocksDB stores unless they are needed
                 Key: KAFKA-7367
                 URL: https://issues.apache.org/jira/browse/KAFKA-7367
             Project: Kafka
          Issue Type: Improvement
          Components: streams
            Reporter: John Roesler


We have gotten some reports of Streams creating RocksDB stores unnecessarily for stateless processes.

We can and should verify this doesn't happen by creating integration tests for *every* stateless operator that verify that after processing, the state directory is still empty.

These tests could potentially be backported as far as we care to so that we can identify and fix potential unnecessary stores in past versions as well.



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