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<link rel="icon" href="/images/favicon.ico"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta property="og:title" content="Arthas"><meta property="og:image:alt" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><meta property="og:image" content="/images/arthas_mate_image.png"><meta property="og:description" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><meta property="og:image:width" content="1200"><meta property="og:image:height" content="600"><meta property="twitter:image:src" content="/images/arthas_mate_image.png"><meta property="twitter:image:alt" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><meta itemprop="name" content="Arthas"><meta itemprop="image" content="/images/arthas_mate_image.png"><meta itemprop="description" content="Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas - alibaba/arthas: Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas"><script>
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<div id="app"><!--[--><div class="theme-container"><!--[--><header class="navbar"><div class="toggle-sidebar-button" title="切换侧边栏" aria-expanded="false" role="button" tabindex="0"><div class="icon" aria-hidden="true"><span></span><span></span><span></span></div></div><span><a href="/" class="" data-v-61144abc><!----><span class="site-name can-hide" data-v-61144abc>arthas</span><span class="navbar-version" data-v-61144abc>v3.6.5</span></a></span><div class="navbar-items-wrapper" style=""><!--[--><!--]--><nav class="navbar-items can-hide"><!--[--><div class="navbar-item"><a href="/" class="" aria-label="首页"><!--[--><!--]--> 首页 <!--[--><!--]--></a></div><div class="navbar-item"><a class="external-link" href="/doc/arthas-tutorials.html?language=cn&id=arthas-basics" rel="noopener noreferrer" target="_blank" aria-label="在线教程"><!--[--><!--]--><span>在线教程</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/" class="router-link-active" aria-label="文档"><!--[--><!--]--> 文档 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/commands.md" class="" aria-label="命令列表"><!--[--><!--]--> 命令列表 <!--[--><!--]--></a></div><div class="navbar-item"><a href="/doc/download.md" class="" aria-label="下载"><!--[--><!--]--> 下载 <!--[--><!--]--></a></div><div class="navbar-item"><div class="navbar-dropdown-wrapper"><button class="navbar-dropdown-title" type="button" aria-label="解决方案"><span class="title">解决方案</span><span class="arrow down"></span></button><button class="navbar-dropdown-title-mobile" type="button" aria-label="解决方案"><span class="title">解决方案</span><span class="right arrow"></span></button><ul style="display:none;" class="navbar-dropdown"><!--[--><li class="navbar-dropdown-item"><a class="external-link" href="https://cn.aliyun.com/product/aliware/mse?spm=arthas.topbar.0.0.0" rel="noopener noreferrer" target="_blank" aria-label="微服务解决方案"><!--[--><!--]--><span>微服务解决方案</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a></li><li class="navbar-dropdown-item"><a class="external-link" href="https://www.aliyun.com/aliware/txc?spm=arthas.topbar.0.0.0" rel="noopener noreferrer" target="_blank" aria-label="分布式事务解决方案"><!--[--><!--]--><span>分布式事务解决方案</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a></li><li class="navbar-dropdown-item"><a class="external-link" href="https://www.aliyun.com/product/ahas?spm=artha
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Started recording 1. No limit specified, using maxsize=250MB as default.
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><div class="custom-container tip"><p class="custom-container-title">提示</p><p>默认情况下，开启的是默认参数的 jfr 记录</p></div><p>启动 jfr 记录，指定记录名，记录持续时间，记录文件保存路径。</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>$ jfr start -n myRecording --duration 60s -f /tmp/myRecording.jfr
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Started recording 2. The result will be written to:
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/tmp/myRecording.jfr
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="查看-jfr-记录状态" tabindex="-1"><a class="header-anchor" href="#查看-jfr-记录状态" aria-hidden="true">#</a> 查看 JFR 记录状态</h2><p>默认是查看所有 JFR 记录信息</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ jfr status
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Recording: <span class="token assign-left variable">recording</span><span class="token operator">=</span><span class="token number">1</span> <span class="token assign-left variable">name</span><span class="token operator">=</span>Recording-1 <span class="token punctuation">(</span>running<span class="token punctuation">)</span>
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Recording: <span class="token assign-left variable">recording</span><span class="token operator">=</span><span class="token number">2</span> <span class="token assign-left variable">name</span><span class="token operator">=</span>myRecording <span class="token assign-left variable">duration</span><span class="token operator">=</span>PT1M <span class="token punctuation">(</span>closed<span class="token punctuation">)</span>
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>查看指定记录 id 的记录信息</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ jfr status <span class="token parameter variable">-r</span> <span class="token number">1</span>
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Recording: <span class="token assign-left variable">recording</span><span class="token operator">=</span><span class="token number">1</span> <span class="token assign-left variable">name</span><span class="token operator">=</span>Recording-1 <span class="token punctuation">(</span>running<span class="token punctuation">)</span>
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><p>查看指定状态的记录信息</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ jfr status <span class="token parameter variable">--state</span> closed
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Recording: <span class="token assign-left variable">recording</span><span class="token operator">=</span><span class="token number">2</span> <span class="token assign-left variable">name</span><span class="token operator">=</span>myRecording <span class="token assign-left variable">duration</span><span class="token operator">=</span>PT1M <span class="token punctuation">(</span>closed<span class="token punctuation">)</span>
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="dump-jfr-记录" tabindex="-1"><a class="header-anchor" href="#dump-jfr-记录" aria-hidden="true">#</a> dump jfr 记录</h2><p>指定记录输出路径</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ jfr dump <span class="token parameter variable">-r</span> <span class="token number">1</span> <span class="token parameter variable">-f</span> /tmp/myRecording1.jfr
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Dump recording <span class="token number">1</span>, The result will be written to:
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/tmp/myRecording1.jfr
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>不指定文件输出路径，默认是保存到<code>arthas-output</code>目录下</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ jfr dump <span class="token parameter variable">-r</span> <span class="token number">1</span>
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Dump recording <span class="token number">1</span>, The result will be written to:
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/tmp/test/arthas-output/20220819-200915.jfr
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h2 id="停止-jfr-记录" tabindex="-1"><a class="header-anchor" href="#停止-jfr-记录" aria-hidden="true">#</a> 停止 jfr 记录</h2><p>不指定记录输出路径，默认是保存到<code>arthas-output</code>目录下</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ jfr stop <span class="token parameter variable">-r</span> <span class="token number">1</span>
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Stop recording <span class="token number">1</span>, The result will be written to:
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/tmp/test/arthas-output/20220819-202049.jfr
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</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><blockquote><p>注意一条记录只能停止一次。</p></blockquote><p>也可以指定记录输出路径。</p><h2 id="通过浏览器查看-arthas-output-下面-jfr-记录的结果" tabindex="-1"><a class="header-anchor" href="#通过浏览器查看-arthas-output-下面-jfr-记录的结果" aria-hidden="true">#</a> 通过浏览器查看 arthas-output 下面 JFR 记录的结果</h2><p>默认情况下，arthas 使用 8563 端口，则可以打开： <a href="http://localhost:8563/arthas-output/" target="_blank" rel="noopener noreferrer">http://localhost:8563/arthas-output/<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span></a> 查看到<code>arthas-output</code>目录下面的 JFR 记录结果：</p><p><img src="/images/arthas-output-recording.png" alt=""></p><p>生成的结果可以用支持 jfr 格式的工具来查看。比如：</p><ul><li>JDK Mission Control ： https://github.com/openjdk/jmc</li></ul></div><!--[--><!--]--></div><footer class="page-meta right-menu-padding" data-v-fdd717e0><div class="meta-item edit-link"><a class="external-link meta-item-label" href="https://github.com/alibaba/arthas/edit/master/site/docs/doc/jfr.md" rel="noopener noreferrer" target="_blank" aria-label="在 GitHub 上编辑此页"><!--[--><!--]--><span>在 GitHub 上编辑此页</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a></div><div class="meta-item last-updated"><span class="meta-item-label">Last Updated: </span><!----></div><div class="meta-item contributors"><span class="meta-item-label">贡献者: </span><span class="meta-item-info"><!--[--><!--[--><span class="contributor" title="email: 108991596+longxu0509@users.noreply.github.com">longxu0509</span><!----><!--]--><!--]--></span></div></footer><nav class="page-nav right-menu-padding" data-v-fdd717e0><p class="inner"><span class="prev"><a href="/doc/profiler.html" class="" aria-label="profiler"><!--[--><!--]--> profiler <!--[--><!--]--></a></span><span class="next"><a href="/doc/auth.html" class="" aria-label="auth"><!--[--><!--]--> auth <!--[--><!--]--></a></span></p></nav><!--[--><!--]--></main><!--]--></div><!----><!--]--></div>
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