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Component | Description |
MaxScale | Read/write splitting across all nodes in Galera, to write to only one node. |
MariaDB Galera | Synchronous multi-master director cluster for MariaDB. |
HAproxy | Balancing across all Redis instances, but only master primary instance is active |
Redis | Stores volatile information such as tasks. |
Sentinel | Provides high availability for Redis. |
RabbitMQ | Queues for remote services. |
Zookeeper | Manages API leader selection (for more than one API server) |
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