多节点 Orchestrator 部署模型，可提高容量、可扩展性和冗余

If your deployment has grown and you need to increase capacity, expanding your Orchestrator to a multi-node installation is the next logical step.

It offers both better performance and failure resistance as multiple Orchestrator nodes are available - when one fails, the other(s) can pick up the load. Horizontal scalability is also available, as it is possible to add additional nodes as your Robot needs grow further.

This deployment model should not, however, be confused with High Availability, as the lone HAA node remains as a potential single point of failure.

请注意，此模型比单个节点安装更消耗资源，需要额外的组件，如 Orchestrator 的或其他测试的解决方案，以及网络负载均衡器。

下图描述了使用单个 HAA 节点同步的两个或多个 Orchestrator 节点的简单多节点部署：

图 1. 多节点部署