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Load Balancing¶
Galera Cluster guarantees node consistency regardless of where and when the query is issued. In other words, you are free to choose a load-balancing approach that best suits your purposes. If you decide to place the load balancing mechanism between the database and the application, you can consider, for example, the following tools:
- HAProxy an open source TCP/HTTP load balancer.
- Pen another open source TCP/HTTP load balancer. Pen performs better than HAProxy on SQL traffic.
- Galera Load Balancer inspired by Pen, but is limited to balancing generic TCP connections only.
For more information or ideas on where to use load balancers in your infrastructure, see Cluster Deployment Variants.
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