/tags/nginx/ Recent content in Nginx on Laily's Note Hugo -- gohugo.io zh Wed, 12 Dec 2018 11:10:11 +0800 /post/nginx/usage/ Wed, 12 Dec 2018 11:10:11 +0800 /post/nginx/usage/ <h1 id="nginx-使用"> Nginx 使用 <a href="#nginx-%e4%bd%bf%e7%94%a8" class="h-anchor" aria-hidden="true">#</a> </h1> <h1 id="配置文件"> 配置文件 <a href="#%e9%85%8d%e7%bd%ae%e6%96%87%e4%bb%b6" class="h-anchor" aria-hidden="true">#</a> </h1> <h3 id="全局配置部分"> 全局配置部分 <a href="#%e5%85%a8%e5%b1%80%e9%85%8d%e7%bd%ae%e9%83%a8%e5%88%86" class="h-anchor" aria-hidden="true">#</a> </h3> <div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-yaml" data-lang="yaml"><span style="display:flex;"><span><span style="color:#ae81ff">user www www;</span> </span></span><span style="display:flex;"><span><span style="color:#ae81ff">worker_process 2;</span> </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#ae81ff">error_log logs/error.log;</span> </span></span><span style="display:flex;"><span><span style="color:#75715e">#error_log logs/error.log notice;</span> </span></span><span style="display:flex;"><span><span style="color:#75715e">#error_log logs/error.log info;</span> </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#ae81ff">pid logs/nginx.pid</span> </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#ae81ff">events {</span> </span></span><span style="display:flex;"><span> <span style="color:#ae81ff">use epoll;</span> </span></span><span style="display:flex;"><span> <span style="color:#ae81ff">worker_connections 2048;</span> </span></span><span style="display:flex;"><span>} </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span><span style="color:#ae81ff">http {</span> </span></span><span style="display:flex;"><span> <span style="color:#ae81ff">...</span> </span></span><span style="display:flex;"><span> <span style="color:#ae81ff">server {</span> </span></span><span style="display:flex;"><span> </span></span><span style="display:flex;"><span> } </span></span><span style="display:flex;"><span>} </span></span></code></pre></div><ul> <li>user www www</li> </ul> <p>nginx 的运行用户和组。</p> <ul> <li>worker_process 2</li> </ul> <p>再配置文件的顶级 main 部分，表示 worker 角色的工作进程的个数。nginx 进程分为 master 和 worker。master负责接收并分配请求给 worker 处理。这个数值可以简单设置为 cpu 的核数 <code>grep ^processor /proc/cpuinfo | wc -l</code>， 也即是 auto 值。如果开启了 ssl 和 gzip 更应该设置成于逻辑 cpu 数目一样或者 2 倍，可以减少 io 操作。如果 nginx 服务器上还有其他服务，可以适当减少。</p>