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Posted to dev@kafka.apache.org by "Jason Gustafson (JIRA)" <ji...@apache.org> on 2019/06/07 18:36:00 UTC

[jira] [Created] (KAFKA-8509) Add downgrade system tests

Jason Gustafson created KAFKA-8509:
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             Summary: Add downgrade system tests
                 Key: KAFKA-8509
                 URL: https://issues.apache.org/jira/browse/KAFKA-8509
             Project: Kafka
          Issue Type: Improvement
            Reporter: Jason Gustafson


We've been bitten a few times by downgrade incompatibilities. It should be straightforward to adapt our current upgrade system tests to support downgrades as well. The basic procedure should be: 
 # Roll the cluster with the updated binary, keep IBP on old version
 # Verify produce/consume
 # Roll the cluster with the old binary, keep IBP the same.
 # Verify produce/consume



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