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Posted to issues@ignite.apache.org by "Ivan Bessonov (Jira)" <ji...@apache.org> on 2023/04/18 12:31:00 UTC

[jira] [Created] (IGNITE-19302) Phantom reads protection is broken

Ivan Bessonov created IGNITE-19302:
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             Summary: Phantom reads protection is broken
                 Key: IGNITE-19302
                 URL: https://issues.apache.org/jira/browse/IGNITE-19302
             Project: Ignite
          Issue Type: Bug
            Reporter: Ivan Bessonov


{{SortedIndexLocker#acquireLockNextKey}} is poorly implemented and not tested properly. It ignores the documented contract of {{hasNext}} and {{peek}} from {{{}PeekCursor{}}}.

"Has next" checks must essentially be replaced with {{{}peek() != null{}}}.
Unit tests, that would simulate concurrent operations, or maybe even do concurrent operations, must be implemented.



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