[jira] [Created] (CASSANDRA-15537) Local Read/Write Path: Upgrade and Diff Test

["Josh McKenzie (Jira)" <ji...@apache.org>]

Josh McKenzie created CASSANDRA-15537:
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             Summary: Local Read/Write Path: Upgrade and Diff Test
                 Key: CASSANDRA-15537
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15537
             Project: Cassandra
          Issue Type: Task
          Components: Test/dtest
            Reporter: Josh McKenzie
            Assignee: Yifan Cai


Execution of upgrade and diff tests via cassandra-diff have proven to be one of the most effective approaches toward identifying issues with the local read/write path. These include instances of data loss, data corruption, data resurrection, incorrect responses to queries, incomplete responses, and others. Upgrade and diff tests can be executed concurrent with fault injection (such as host or network failure); as well as during mixed-version scenarios (such as upgrading half of the instances in a cluster, and running upgradesstables on only half of the upgraded instances).

Upgrade and diff tests are expected to continue through the release cycle, and are a great way for contributors to gain confidence in the correctness of the database under their own workloads.



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