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  Thursday, May 21, 2020    Sveta Smirnova

It is common knowledge that built-in asynchronous master-master (active-active) replication is not safe. I remember times when the official MySQL User Reference Manual stated that such an installation is not recommended for production use. Some experts repeat this claim even now.

While this statement is generally true, I worked with thousands of shops that successfully avoided asynchronous replication limitations in active-active setups.

In this talk, I will show how they did it, demonstrate situations when asynchronous master-master replication is the best possible high availability option and beats such solutions as Galera or InnoDB Clusters. I will also cover common mistakes, leading to disasters.


About the Author

Sveta Smirnova

Sveta joined Percona in 2015. Her main professional interests are problem solving, working with tricky issues, bugs, finding patterns which can solve typical issues quicker, teaching others how to deal with MySQL issues, bugs and gotchas effectively. Before joining Percona Sveta worked as Support Engineer in MySQL Bugs Analysis Support Group in MySQL AB-Sun-Oracle. She is author of book "MySQL Troubleshooting" and JSON UDF functions for MySQL.