nginx实现负载均衡有哪几个模式

upstream serverList {

    server 1.2.3.4;

    server 1.2.3.5;

    server 1.2.3.6;

    hash $request_uri;

    hash_method crc32;

}

upstream serverList {

    server 1.2.3.4;

    server 1.2.3.5;

    server 1.2.3.6;

    fair;

}