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MySQL 5.7 Reference Manual
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17.1.2.1 Examples of Use Case Scenarios

The following examples are typical use cases for Group Replication.

  • Elastic Replication - Environments that require a very fluid replication infrastructure, where the number of servers has to grow or shrink dynamically and with as few side-effects as possible. For instance, database services for the cloud.

  • Highly Available Shards - Sharding is a popular approach to achieve write scale-out. Use MySQL Group Replication to implement highly available shards, where each shard maps to a replication group.

  • Alternative to Master-Slave replication - In certain situations, using a single master server makes it a single point of contention. Writing to an entire group may prove more scalable under certain circumstances.

  • Autonomic Systems - Additionally, you can deploy MySQL Group Replication purely for the automation that is built into the replication protocol (described already in this and previous chapters).


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