How Safe is Asynchronous Master-Master Setup? Sveta Smirnova - Percona Tech Days - MySQL Tutorial

It is common knowledge that built-in asynchronous 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.

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While this statement is generally true, I worked with thousands of
shops that successfully avoided asynchronous replication limitations
in active-active setups.
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In this talk, I will show how they did it, demonstrate situations when
asynchronous source-source 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.

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