### 18.1.1 Replication Technologies

[18.1.1.1 Source to Replica Replication](group-replication-primary-secondary-replication.html)
[18.1.1.2 Group Replication](group-replication-summary.html)

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 Before getting into the details of MySQL Group Replication, this section introduces some background concepts and an overview of how things work. This provides some context to help understand what is required for Group Replication and what the differences are between classic asynchronous MySQL Replication and Group Replication.

