Tee filter seems to work asynchronously. With a too high pace tee filter looses some statements.
It would be nice to make tee filter switchable to synchronous working as well so it works more reliable in certain scenarios:
- Simulate a Push Replication from a secure zone to a non-secure zone (vs. M/S replication).
- Copy production traffic to QA/testing system
- Testing/comparing an old and a new MariaDB server version
- Testing/comparing MySQL and MariaDB during a migration phase to MariaDB