• A+


  • 在http节点下面,添加upstream的节点。
  1. upstream birdteam {
  2. server;
  3. server;
  4. }
  • 将server节点下的location节点中的proxy_pass配置为http://+upstream名称,如http://birdteam。
  1. location / {
  2. proxy_pass http://birdteam;
  3. }
  • 现在负载均衡就初步完成了。upstream会按照轮询方式进行负载,每个请求按时间顺序逐一分配到不同的后端服务器,如果后端服务器宕掉了,可以自动剔除。虽然这种方式简便、成本低廉。但缺点是:可靠性低和负载分配不均衡。适用图片服务器集群和纯静态页面服务器集群。
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