[Backport 1.2] Update the key generator on replay #8158
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On replay, update the key generator with the replayed record's key. This fixes an issue where the follower would restart with a snapshot where nothing needed to be replayed, and would thus not update its generated key, leading to processing starting with the wrong key and duplicate keys, causing state inconsistencies.
Test should verify key column, to make sure on replay and processing key column family is filled.
Regression test which verifies that no duplicated keys are generated on the log, after fail over
In order to work with the old transition logic, the regression test need to take snapshots so we restart from the snapshot and not replay the complete log on the new leader
saig0
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saig0
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Nov 5, 2021
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Description
Backports the fix from #8156 and adjusts the IT test to get it work with 1.2. Snapshot need to be taken so the new leader will not replay the complete log and start with the latest state he had.
Related issues
related to #8129
Definition of Done
Not all items need to be done depending on the issue and the pull request.
Code changes:
backport stable/0.25) to the PR, in case that fails you need to create backports manually.Testing:
Documentation: