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Re: 5.6 to 5.7 row-based replication performance issue
Posted by: JOSEPH MASK
Date: October 28, 2020 10:49PM

> You need a test system where you can enable performance_schema, find the slow queries that are replication bottlenecks, optimise them and/or find system tunings that handle them better.

It seems like slow queries usually deal with the actual execution of the SQL statements, and the optimizations are done in SQL. But in the case of row-based replication, the statement work is already done by the time it gets to the replica. How would you optimize a row-based event?

I agree that we need to enable performance_schema on a test system to find out what is causing this performance issue.

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