Nginx基于权重的轮询算法实现
Nginx平滑的基于权重轮询算法描述为： Algorithm is as follows: on each peer selection we increase current_weight of each eligible peer by its weight, select peer with greatest current_weight and reduce its current_weight by total number of weight points distributed among peers. 算法执行2步，选择出1个当前节点： 每个节点，用它们的当前值加上它们自己的权重。 选择当前值……