这是配置文件里的一段

    upstream openfire9090{
        server 192.168.10.211:9090;
        server 192.168.10.212:9090;
        hash $http_x_forwarded_for;//说是这里没有 hash指令？
         }
    server {
        listen 9090;
        server_name localhost;
        location / {
            proxy_pass http://openfire9090;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }
    }

service nginx reload

nginx: [emerg] unknown directive "hash" in /usr/local/nginx/conf/nginx.conf:55
nginx: configuration file /usr/local/nginx/conf/nginx.conf test failed

你用的nginx版本是不是太老了。

 Syntax:    hash key [consistent];
Default:    —
Context:    upstream
This directive appeared in version 1.7.2.