Percona Distribution for MySQL provides two deployment variants: one is Percona Server for MySQL-based and another one is Percona XtraDB Cluster-based. Each deployment is available via its own repository and includes the base server (Percona Server for MySQL or Percona XtraDB Cluster) and components. The table below lists what components are available with each server:
|Components||Percona Server for MySQL||Percona XtraDB Cluster|
What deployment variant to choose?¶
The Percona Server-based deployment variant with asynchronous replication utilizes the primary / secondary replication model. It enables you to create geographically distributed infrastructures with the support for disaster recovery. However, this deployment variant does not guarantee data consistency on all nodes at the given moment and provides high availability of up to 4 nines.
The Percona Server-based deployment variant with Group Replication enables you to create fault-tolerant systems with redundancy by replicating the system state to a set of servers. Percona Server for MySQL-based deployment with Group Replication offers a high grade of high availability (4-5 nines) and almost instant fail over when associated with a proxy.
The Percona XtraDB Cluster-based deployment variant guarantees data consistency on all nodes and zero data loss. The Percona XtraDB Cluster-based deployment provides a high grade of high availability (4-5 nines) and almost instant failover.
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