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  1. MariaDB Server
  2. MDEV-25553

Avoid unnecessary rollbacks with SR

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      This task changes statement rollback for streaming replication. Previously, a statement rollback was turned into full transaction rollback in the case where the transaction had already replicated a fragment. This was introduced in the initial implementation of streaming replication due to the fact that we do not have a mechanism to perform a statement rollback on the applying side. This policy is however overly pessimistic, causing full rollbacks even in cases where a local statement rollback, would not require a statement rollback on the applying side. This happens to be case when the statement itself has not replicated any fragments. So the patch changes the condition that determines if a statement rollback should be turned into a full rollback accordingly.

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            Assignee:
            jplindst Jan Lindström
            Reporter:
            jplindst Jan Lindström
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