The load balancer uses a just in time methodology by selecting the location of the primary and secondary replicas of a new database based on current load on nodes within a cluster.
负载均衡器使用的是一种即时的方法，它会基于集群中各节点的当前负载来选择主副本和二级副本的位置。
Primary effects include gravity and wind - but at a secondary level, you have to think about temperature and moisture changes, the materials slightly deforming under load.
初始效应包括重力和风——但在二次效应层面上，你就得考虑气温和水分变化，材料因负重导致的轻微变形。
Load Balancing: if one specific server is really busy, we can take a replica and move one of the secondary replicas and make it primary, we can also clone a replica and more it to another server.
负载平衡：如果某台服务器负载过大，我们可以复制一份并让某个次级服务器成为主服务器，同时还可以将某份复制移动到其他服务器上去。
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