Nginx シリーズ (14 個の nginx キャッシュ)

<code><span>#注：proxy_temp_path和proxy_cache_path指定的路径必须在同一分区</span>
proxy_temp_path /web/tmp/nginx;
<span>#设置Web缓存区名称为cache_one，内存缓存空间大小为100MB，1天没有被访问的内容自动清除，硬盘缓存空间大小为1GB。</span>
proxy_cache_path /web/cache/nginx levels=<span>1</span>:<span>2</span> keys_z>100m inactive=<span>1</span>d max_size=<span>1</span>g;
</code>

<code>location / {
            <span>#如果后端的服务器返回502、504、执行超时等错误，自动将请求转发到upstream负载均衡池中的另一台服务器，实现故障转移。</span>
            proxy_next_upstream http_502 http_504 error timeout invalid_header;
            proxy_cache cache_one;
            <span>#对不同的HTTP状态码设置不同的缓存时间</span>
            proxy_cache_valid <span>200</span><span>304</span><span>1</span>h;
            <span>#以域名、URI、参数组合成Web缓存的Key值，Nginx根据Key值哈希，存储缓存内容到二级缓存目录内</span>
            proxy_cache_key <span>$host</span><span>$uri</span><span>$is_args</span><span>$args</span>;
            proxy_pass http://webserver;
            proxy_redirect off;
            proxy_<span>set</span>_header Host <span>$host</span>;
            proxy_<span>set</span>_header X-Real-IP <span>$remote_addr</span>;
            proxy_<span>set</span>_header X-Forwarded-For <span>$proxy_add_x_forwarded_for</span>;
        }</code>