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<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom">
<title>defke's notes</title>
<subtitle>专业搬砖</subtitle>
<link href="/atom.xml" rel="self"/>
<link href="https://www.defke.top/"/>
<updated>2019-06-25T13:29:02.627Z</updated>
<id>https://www.defke.top/</id>
<author>
<name>defke</name>
</author>
<generator uri="http://hexo.io/">Hexo</generator>
<entry>
<title>aritle</title>
<link href="https://www.defke.top/2019/06/25/aritle-3/"/>
<id>https://www.defke.top/2019/06/25/aritle-3/</id>
<published>2019-06-25T13:29:02.000Z</published>
<updated>2019-06-25T13:29:02.627Z</updated>
<summary type="html">
</summary>
</entry>
<entry>
<title>gin结合endless实现服务平滑重启</title>
<link href="https://www.defke.top/2019/06/24/gin%E7%BB%93%E5%90%88endless%E5%AE%9E%E7%8E%B0%E6%9C%8D%E5%8A%A1%E5%B9%B3%E6%BB%91%E9%87%8D%E5%90%AF/"/>
<id>https://www.defke.top/2019/06/24/gin结合endless实现服务平滑重启/</id>
<published>2019-06-24T14:14:33.000Z</published>
<updated>2019-06-25T13:47:12.811Z</updated>
<content type="html"><![CDATA[<p>新建一个项目</p><p><img src="/2019/06/24/gin结合endless实现服务平滑重启/1561459924.jpg" alt></p><p> 用go-module进行包管理（需要go版本>=1.11.0）</p><p>打开命令行，运行如下命令</p><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">set GO111MODULE=on//打开包管理</span><br><span class="line">set GOPROXY= https://goproxy.io//设置下载包代理</span><br></pre></td></tr></table></figure><p>运行命令,初始化项目</p><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">go mod init</span><br></pre></td></tr></table></figure><p>在main.go 文件导入如下包</p><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">import (</span><br><span class="line"> "github.com/gin-gonic/gin"</span><br><span class="line"> "github.com/fvbock/endless"</span><br><span class="line">)</span><br></pre></td></tr></table></figure><p>运行</p><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">go mod vendor</span><br></pre></td></tr></table></figure><p>这时候，go包管理工具就会为我们下载导入的包跟需要的关联包到vendor目录下</p><p><img src="/2019/06/24/gin结合endless实现服务平滑重启/%E5%BE%AE%E4%BF%A1%E6%88%AA%E5%9B%BE_20190625191018.png" alt></p><p>在main.go 下编写demo，代码如下</p><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br></pre></td><td class="code"><pre><span class="line">package main</span><br><span class="line"></span><br><span class="line">import (</span><br><span class="line"> "github.com/fvbock/endless"</span><br><span class="line"> "github.com/gin-gonic/gin"</span><br><span class="line"> "log"</span><br><span class="line"> "net/http"</span><br><span class="line"> "time"</span><br><span class="line">)</span><br><span class="line"></span><br><span class="line">func handle(c *gin.Context) {</span><br><span class="line"> duration,err := time.ParseDuration(c.Query("duration"))</span><br><span class="line"> if err != nil {</span><br><span class="line"> log.Println("err:",err)</span><br><span class="line"> return</span><br><span class="line"> }</span><br><span class="line"> time.Sleep(duration)</span><br><span class="line"> c.String(http.StatusOK,"hello world")</span><br><span class="line">}</span><br><span class="line"></span><br><span class="line">func main() {</span><br><span class="line"> router := gin.Default()</span><br><span class="line"> router.GET("/sleep",handle)</span><br><span class="line"> err := endless.ListenAndServe(":8080",router)</span><br><span class="line"> if err != nil {</span><br><span class="line"> log.Println("err:",err)</span><br><span class="line"> }</span><br><span class="line">}</span><br></pre></td></tr></table></figure><p>将代码打包到linux服务器运行</p><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">go build && nohup ./hot-upgrade-demo &</span><br></pre></td></tr></table></figure><p>现在将打印输出改成 “hello world”,重新编译</p><p><img src="/2019/06/24/gin结合endless实现服务平滑重启/%E5%BE%AE%E4%BF%A1%E6%88%AA%E5%9B%BE_20190625205539.png" alt></p><p>在命令行使用curl请求</p><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">curl "http://localhost:8080/sleep?duration=60s"</span><br></pre></td></tr></table></figure><p>另起一个终端，在另一个终端输入如下命令</p><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">curl "http://localhost:8080/sleep?duration=1s"</span><br></pre></td></tr></table></figure><p>结果：</p><p>第一个终端返回：</p><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">hello world</span><br></pre></td></tr></table></figure><p>第二个终端返回:</p><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">hello friend</span><br></pre></td></tr></table></figure><p>ps -ef 命令下的程序运行图</p><p><img src="/2019/06/24/gin结合endless实现服务平滑重启/%E5%BE%AE%E4%BF%A1%E6%88%AA%E5%9B%BE_20190625210230.png" alt></p><p>如图所示，在关闭pid 540 的程序之后，程序会另起一个子进程，等连接断开后，关闭父进程，如图：</p><p><img src="/2019/06/24/gin结合endless实现服务平滑重启/%E5%BE%AE%E4%BF%A1%E6%88%AA%E5%9B%BE_20190625210445.png" alt></p><p>这说明第一个请求的连接并没有关闭，用的还是原来的连接，这样就实现程序的平滑重启</p><p>注意：</p><p>程序在windows运行会报错</p><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line"># hot-upgrade-demo/vendor/github.com/fvbock/endless</span><br><span class="line">vendor\github.com\fvbock\endless\endless.go:64:3: undefined: syscall.SIGUSR1</span><br><span class="line">vendor\github.com\fvbock\endless\endless.go:65:3: undefined: syscall.SIGUSR2</span><br><span class="line">vendor\github.com\fvbock\endless\endless.go:68:3: undefined: syscall.SIGTSTP</span><br><span class="line">vendor\github.com\fvbock\endless\endless.go:111:5: undefined: syscall.SIGUSR1</span><br><span class="line">vendor\github.com\fvbock\endless\endless.go:112:5: undefined: syscall.SIGUSR2</span><br><span class="line">vendor\github.com\fvbock\endless\endless.go:115:5: undefined: syscall.SIGTSTP</span><br><span class="line">vendor\github.com\fvbock\endless\endless.go:119:5: undefined: syscall.SIGUSR1</span><br><span class="line">vendor\github.com\fvbock\endless\endless.go:120:5: undefined: syscall.SIGUSR2</span><br><span class="line">vendor\github.com\fvbock\endless\endless.go:123:5: undefined: syscall.SIGTSTP</span><br><span class="line">vendor\github.com\fvbock\endless\endless.go:224:3: undefined: syscall.Kill</span><br><span class="line">vendor\github.com\fvbock\endless\endless.go:224:3: too many errors</span><br></pre></td></tr></table></figure>]]></content>
<summary type="html">
<p>新建一个项目</p>
<p><img src="/2019/06/24/gin结合endless实现服务平滑重启/1561459924.jpg" alt></p>
<p> 用go-module进行包管理（需要go版本&gt;=1.11.0）</p>
<p>打开命令行
</summary>
<category term="gin学习" scheme="https://www.defke.top/categories/gin%E5%AD%A6%E4%B9%A0/"/>
<category term="运维" scheme="https://www.defke.top/tags/%E8%BF%90%E7%BB%B4/"/>
<category term="gin" scheme="https://www.defke.top/tags/gin/"/>
</entry>
<entry>
<title>aritle</title>
<link href="https://www.defke.top/2019/06/24/aritle-2/"/>
<id>https://www.defke.top/2019/06/24/aritle-2/</id>
<published>2019-06-24T12:12:58.000Z</published>
<updated>2019-06-24T12:12:59.013Z</updated>
<summary type="html">
</summary>
</entry>
<entry>
<title>aritle</title>
<link href="https://www.defke.top/2019/06/24/aritle-1/"/>
<id>https://www.defke.top/2019/06/24/aritle-1/</id>
<published>2019-06-24T12:06:35.000Z</published>
<updated>2019-06-24T12:06:35.274Z</updated>
<summary type="html">
</summary>
</entry>
<entry>
<title>文章</title>
<link href="https://www.defke.top/2019/06/23/aritle/"/>
<id>https://www.defke.top/2019/06/23/aritle/</id>
<published>2019-06-23T15:06:46.000Z</published>
<updated>2019-06-24T14:46:58.492Z</updated>
<content type="html"><![CDATA[<iframe frameborder="no" border="0" marginwidth="0" marginheight="0" width="330" height="86" src="//music.163.com/outchain/player?type=2&id=461153715&auto=1&height=66"></iframe>]]></content>
<summary type="html">
<iframe frameborder="no" border="0" marginwidth="0" marginheight="0" width="330" height="86" src="//music.163.com/outchain/player?type=2&id=
</summary>
</entry>
<entry>
<title>docker容器使用</title>
<link href="https://www.defke.top/2019/06/23/docker%E5%AE%B9%E5%99%A8%E4%BD%BF%E7%94%A8/"/>
<id>https://www.defke.top/2019/06/23/docker容器使用/</id>
<published>2019-06-23T14:09:09.000Z</published>
<updated>2019-06-23T14:12:24.937Z</updated>
<summary type="html">
</summary>
</entry>
<entry>
<title>git常用命令</title>
<link href="https://www.defke.top/2019/06/23/git%E5%B8%B8%E7%94%A8%E5%91%BD%E4%BB%A4/"/>
<id>https://www.defke.top/2019/06/23/git常用命令/</id>
<published>2019-06-23T13:49:29.000Z</published>
<updated>2019-06-23T14:12:39.768Z</updated>
<summary type="html">
</summary>
</entry>
<entry>
<title>vps服务器自建梯子</title>
<link href="https://www.defke.top/2019/06/23/vps%E6%9C%8D%E5%8A%A1%E5%99%A8%E8%87%AA%E5%BB%BA%E6%A2%AF%E5%AD%90/"/>
<id>https://www.defke.top/2019/06/23/vps服务器自建梯子/</id>
<published>2019-06-23T13:48:55.000Z</published>
<updated>2019-06-23T14:08:30.674Z</updated>
<summary type="html">
</summary>
<category term="网络" scheme="https://www.defke.top/categories/%E7%BD%91%E7%BB%9C/"/>
<category term="vps" scheme="https://www.defke.top/tags/vps/"/>
</entry>
<entry>
<title>hexo搭建自己的博客</title>
<link href="https://www.defke.top/2019/06/22/hexo%E6%90%AD%E5%BB%BA%E8%87%AA%E5%B7%B1%E7%9A%84%E5%8D%9A%E5%AE%A2/"/>
<id>https://www.defke.top/2019/06/22/hexo搭建自己的博客/</id>
<published>2019-06-22T13:25:24.000Z</published>
<updated>2019-06-23T14:13:12.598Z</updated>
<content type="html"><![CDATA[<p>什么都还没写，哈哈哈哈</p>]]></content>
<summary type="html">
<p>什么都还没写，哈哈哈哈</p>
</summary>
</entry>
</feed>