|
|
|
|
|
|
|
|
<!DOCTYPE html>
|
|
|
<!--[if IE 8]><html class="no-js lt-ie9" lang="zh-CN" > <![endif]-->
|
|
|
<!--[if gt IE 8]><!--> <html class="no-js" lang="zh-CN" > <!--<![endif]-->
|
|
|
<head>
|
|
|
<meta charset="utf-8">
|
|
|
|
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
|
|
|
|
<title>进阶使用 — Arthas 3.1.2 文档</title>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<link rel="shortcut icon" href="_static/favicon.ico"/>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<script type="text/javascript" src="_static/js/modernizr.min.js"></script>
|
|
|
|
|
|
|
|
|
<script type="text/javascript" id="documentation_options" data-url_root="./" src="_static/documentation_options.js"></script>
|
|
|
<script type="text/javascript" src="_static/jquery.js"></script>
|
|
|
<script type="text/javascript" src="_static/underscore.js"></script>
|
|
|
<script type="text/javascript" src="_static/doctools.js"></script>
|
|
|
<script type="text/javascript" src="_static/language_data.js"></script>
|
|
|
<script type="text/javascript" src="_static/translations.js"></script>
|
|
|
|
|
|
<script type="text/javascript" src="_static/js/theme.js"></script>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="_static/css/theme.css" type="text/css" />
|
|
|
<link rel="stylesheet" href="_static/pygments.css" type="text/css" />
|
|
|
<link rel="stylesheet" href="_static/overrides.css" type="text/css" />
|
|
|
<link rel="index" title="索引" href="genindex.html" />
|
|
|
<link rel="search" title="搜索" href="search.html" />
|
|
|
<link rel="next" title="Web Console" href="web-console.html" />
|
|
|
<link rel="prev" title="快速入门" href="quick-start.html" />
|
|
|
<script src="_static/center_page.js"></script>
|
|
|
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/styles/github.min.css">
|
|
|
|
|
|
|
|
|
</head>
|
|
|
|
|
|
<body class="wy-body-for-nav">
|
|
|
|
|
|
|
|
|
<div class="wy-grid-for-nav">
|
|
|
|
|
|
<nav data-toggle="wy-nav-shift" class="wy-nav-side">
|
|
|
<div class="wy-side-scroll">
|
|
|
<div class="wy-side-nav-search" >
|
|
|
|
|
|
|
|
|
|
|
|
<a href="index.html" class="icon icon-home"> Arthas
|
|
|
|
|
|
|
|
|
|
|
|
</a>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div class="version">
|
|
|
3.1.2
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div role="search">
|
|
|
<form id="rtd-search-form" class="wy-form" action="search.html" method="get">
|
|
|
<input type="text" name="q" placeholder="Search docs" />
|
|
|
<input type="hidden" name="check_keywords" value="yes" />
|
|
|
<input type="hidden" name="area" value="default" />
|
|
|
</form>
|
|
|
</div>
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<ul class="current">
|
|
|
<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/en/">English Docs</a></li>
|
|
|
<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=cn">在线教程(推荐)</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="install-detail.html">安装</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="download.html">下载</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="quick-start.html">快速入门</a></li>
|
|
|
<li class="toctree-l1 current"><a class="current reference internal" href="#">进阶使用</a><ul>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="#id2">基础命令</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="#jvm">jvm相关</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="#class-classloader">class/classloader相关</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="#monitor-watch-trace">monitor/watch/trace相关</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="#options">options</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="#id3">管道</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="#id4">后台异步任务</a></li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="#web-console">Web Console</a><ul>
|
|
|
<li class="toctree-l3"><a class="reference internal" href="web-console.html">Web Console</a></li>
|
|
|
</ul>
|
|
|
</li>
|
|
|
<li class="toctree-l2"><a class="reference internal" href="#id5">其他特性</a><ul>
|
|
|
<li class="toctree-l3"><a class="reference internal" href="async.html">异步命令支持</a></li>
|
|
|
<li class="toctree-l3"><a class="reference internal" href="save-log.html">执行结果存日志</a></li>
|
|
|
<li class="toctree-l3"><a class="reference internal" href="batch-support.html">批处理的支持</a></li>
|
|
|
<li class="toctree-l3"><a class="reference external" href="https://github.com/alibaba/arthas/issues/11">ognl表达式的用法说明</a></li>
|
|
|
</ul>
|
|
|
</li>
|
|
|
</ul>
|
|
|
</li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="commands.html">命令列表</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="web-console.html">WebConsole</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="docker.html">Docker</a></li>
|
|
|
<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/issues?q=label%3Auser-case">用户案例</a></li>
|
|
|
<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/issues?q=label%3Aquestion-answered">常见问题</a></li>
|
|
|
<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas">Fork me at GitHub</a></li>
|
|
|
<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/blob/master/CONTRIBUTING">编译调试/参与贡献</a></li>
|
|
|
<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/releases">Release Notes</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="contact-us.html">QQ群/钉钉群</a></li>
|
|
|
</ul>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
</div>
|
|
|
</nav>
|
|
|
|
|
|
<section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
|
|
|
|
|
|
|
|
|
<nav class="wy-nav-top" aria-label="top navigation">
|
|
|
|
|
|
<i data-toggle="wy-nav-top" class="fa fa-bars"></i>
|
|
|
<a href="index.html">Arthas</a>
|
|
|
|
|
|
</nav>
|
|
|
|
|
|
|
|
|
<div class="wy-nav-content">
|
|
|
|
|
|
<div class="rst-content">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div role="navigation" aria-label="breadcrumbs navigation">
|
|
|
|
|
|
<ul class="wy-breadcrumbs">
|
|
|
|
|
|
<li><a href="index.html">Docs</a> »</li>
|
|
|
|
|
|
<li>进阶使用</li>
|
|
|
|
|
|
|
|
|
<li class="wy-breadcrumbs-aside">
|
|
|
|
|
|
|
|
|
|
|
|
<a href="https://github.com/alibaba/arthas/blob/master/site/src/site/sphinx/advanced-use.md" class="fa fa-github"> Edit on GitHub</a>
|
|
|
|
|
|
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
|
|
|
|
|
<hr/>
|
|
|
</div>
|
|
|
<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
|
|
|
<div itemprop="articleBody">
|
|
|
|
|
|
<div class="section" id="id1">
|
|
|
<h1>进阶使用<a class="headerlink" href="#id1" title="永久链接至标题">¶</a></h1>
|
|
|
<div class="section" id="id2">
|
|
|
<h2>基础命令<a class="headerlink" href="#id2" title="永久链接至标题">¶</a></h2>
|
|
|
<ul class="simple">
|
|
|
<li><p>help——查看命令帮助信息</p></li>
|
|
|
<li><p><a class="reference internal" href="cat.html"><span class="doc">cat</span></a>——打印文件内容，和linux里的cat命令类似</p></li>
|
|
|
<li><p><a class="reference internal" href="pwd.html"><span class="doc">pwd</span></a>——返回当前的工作目录，和linux命令类似</p></li>
|
|
|
<li><p>cls——清空当前屏幕区域</p></li>
|
|
|
<li><p>session——查看当前会话的信息</p></li>
|
|
|
<li><p><a class="reference internal" href="reset.html"><span class="doc">reset</span></a>——重置增强类，将被 Arthas 增强过的类全部还原，Arthas 服务端关闭时会重置所有增强过的类</p></li>
|
|
|
<li><p>version——输出当前目标 Java 进程所加载的 Arthas 版本号</p></li>
|
|
|
<li><p>history——打印命令历史</p></li>
|
|
|
<li><p>quit——退出当前 Arthas 客户端，其他 Arthas 客户端不受影响</p></li>
|
|
|
<li><p>shutdown——关闭 Arthas 服务端，所有 Arthas 客户端全部退出</p></li>
|
|
|
<li><p><a class="reference internal" href="keymap.html"><span class="doc">keymap</span></a>——Arthas快捷键列表及自定义快捷键</p></li>
|
|
|
</ul>
|
|
|
</div>
|
|
|
<div class="section" id="jvm">
|
|
|
<h2>jvm相关<a class="headerlink" href="#jvm" title="永久链接至标题">¶</a></h2>
|
|
|
<ul class="simple">
|
|
|
<li><p><a class="reference internal" href="dashboard.html"><span class="doc">dashboard</span></a>——当前系统的实时数据面板</p></li>
|
|
|
<li><p><a class="reference internal" href="thread.html"><span class="doc">thread</span></a>——查看当前 JVM 的线程堆栈信息</p></li>
|
|
|
<li><p><a class="reference internal" href="jvm.html"><span class="doc">jvm</span></a>——查看当前 JVM 的信息</p></li>
|
|
|
<li><p><a class="reference internal" href="sysprop.html"><span class="doc">sysprop</span></a>——查看和修改JVM的系统属性</p></li>
|
|
|
<li><p><a class="reference internal" href="sysenv.html"><span class="doc">sysenv</span></a>——查看JVM的环境变量</p></li>
|
|
|
<li><p><a class="reference internal" href="vmoption.html"><span class="doc">vmoption</span></a>——查看和修改JVM里诊断相关的option</p></li>
|
|
|
<li><p><a class="reference internal" href="logger.html"><span class="doc">logger</span></a>——查看和修改logger</p></li>
|
|
|
<li><p><a class="reference internal" href="getstatic.html"><span class="doc">getstatic</span></a>——查看类的静态属性</p></li>
|
|
|
<li><p><a class="reference internal" href="ognl.html"><span class="doc">ognl</span></a>——执行ognl表达式</p></li>
|
|
|
<li><p><a class="reference internal" href="mbean.html"><span class="doc">mbean</span></a>——查看 Mbean 的信息</p></li>
|
|
|
<li><p><a class="reference internal" href="heapdump.html"><span class="doc">heapdump</span></a>——dump java heap, 类似jmap命令的heap dump功能</p></li>
|
|
|
</ul>
|
|
|
</div>
|
|
|
<div class="section" id="class-classloader">
|
|
|
<h2>class/classloader相关<a class="headerlink" href="#class-classloader" title="永久链接至标题">¶</a></h2>
|
|
|
<ul class="simple">
|
|
|
<li><p><a class="reference internal" href="sc.html"><span class="doc">sc</span></a>——查看JVM已加载的类信息</p></li>
|
|
|
<li><p><a class="reference internal" href="sm.html"><span class="doc">sm</span></a>——查看已加载类的方法信息</p></li>
|
|
|
<li><p><a class="reference internal" href="jad.html"><span class="doc">jad</span></a>——反编译指定已加载类的源码</p></li>
|
|
|
<li><p><a class="reference internal" href="mc.html"><span class="doc">mc</span></a>——内存编绎器，内存编绎<code class="docutils literal notranslate"><span class="pre">.java</span></code>文件为<code class="docutils literal notranslate"><span class="pre">.class</span></code>文件</p></li>
|
|
|
<li><p><a class="reference internal" href="redefine.html"><span class="doc">redefine</span></a>——加载外部的<code class="docutils literal notranslate"><span class="pre">.class</span></code>文件，redefine到JVM里</p></li>
|
|
|
<li><p><a class="reference internal" href="dump.html"><span class="doc">dump</span></a>——dump 已加载类的 byte code 到特定目录</p></li>
|
|
|
<li><p><a class="reference internal" href="classloader.html"><span class="doc">classloader</span></a>——查看classloader的继承树，urls，类加载信息，使用classloader去getResource</p></li>
|
|
|
</ul>
|
|
|
</div>
|
|
|
<div class="section" id="monitor-watch-trace">
|
|
|
<h2>monitor/watch/trace相关<a class="headerlink" href="#monitor-watch-trace" title="永久链接至标题">¶</a></h2>
|
|
|
<blockquote>
|
|
|
<div><p>请注意，这些命令，都通过字节码增强技术来实现的，会在指定类的方法中插入一些切面来实现数据统计和观测，因此在线上、预发使用时，请尽量明确需要观测的类、方法以及条件，诊断结束要执行 <code class="docutils literal notranslate"><span class="pre">shutdown</span></code> 或将增强过的类执行 <code class="docutils literal notranslate"><span class="pre">reset</span></code> 命令。</p>
|
|
|
</div></blockquote>
|
|
|
<ul class="simple">
|
|
|
<li><p><a class="reference internal" href="monitor.html"><span class="doc">monitor</span></a>——方法执行监控</p></li>
|
|
|
<li><p><a class="reference internal" href="watch.html"><span class="doc">watch</span></a>——方法执行数据观测</p></li>
|
|
|
<li><p><a class="reference internal" href="trace.html"><span class="doc">trace</span></a>——方法内部调用路径，并输出方法路径上的每个节点上耗时</p></li>
|
|
|
<li><p><a class="reference internal" href="stack.html"><span class="doc">stack</span></a>——输出当前方法被调用的调用路径</p></li>
|
|
|
<li><p><a class="reference internal" href="tt.html"><span class="doc">tt</span></a>——方法执行数据的时空隧道，记录下指定方法每次调用的入参和返回信息，并能对这些不同的时间下调用进行观测</p></li>
|
|
|
</ul>
|
|
|
</div>
|
|
|
<div class="section" id="options">
|
|
|
<h2>options<a class="headerlink" href="#options" title="永久链接至标题">¶</a></h2>
|
|
|
<ul class="simple">
|
|
|
<li><p><a class="reference internal" href="options.html"><span class="doc">options</span></a>——查看或设置Arthas全局开关</p></li>
|
|
|
</ul>
|
|
|
</div>
|
|
|
<div class="section" id="id3">
|
|
|
<h2>管道<a class="headerlink" href="#id3" title="永久链接至标题">¶</a></h2>
|
|
|
<p>Arthas支持使用管道对上述命令的结果进行进一步的处理，如<code class="docutils literal notranslate"><span class="pre">sm</span> <span class="pre">java.lang.String</span> <span class="pre">*</span> <span class="pre">|</span> <span class="pre">grep</span> <span class="pre">'index'</span></code></p>
|
|
|
<ul class="simple">
|
|
|
<li><p>grep——搜索满足条件的结果</p></li>
|
|
|
<li><p>plaintext——将命令的结果去除ANSI颜色</p></li>
|
|
|
<li><p>wc——按行统计输出结果</p></li>
|
|
|
</ul>
|
|
|
</div>
|
|
|
<div class="section" id="id4">
|
|
|
<h2>后台异步任务<a class="headerlink" href="#id4" title="永久链接至标题">¶</a></h2>
|
|
|
<p>当线上出现偶发的问题，比如需要watch某个条件，而这个条件一天可能才会出现一次时，异步后台任务就派上用场了，详情请参考<a class="reference internal" href="async.html"><span class="doc">这里</span></a></p>
|
|
|
<ul class="simple">
|
|
|
<li><p>使用 > 将结果重写向到日志文件，使用 & 指定命令是后台运行，session断开不影响任务执行（生命周期默认为1天）</p></li>
|
|
|
<li><p>jobs——列出所有job</p></li>
|
|
|
<li><p>kill——强制终止任务</p></li>
|
|
|
<li><p>fg——将暂停的任务拉到前台执行</p></li>
|
|
|
<li><p>bg——将暂停的任务放到后台执行</p></li>
|
|
|
</ul>
|
|
|
</div>
|
|
|
<div class="section" id="web-console">
|
|
|
<h2>Web Console<a class="headerlink" href="#web-console" title="永久链接至标题">¶</a></h2>
|
|
|
<p>通过websocket连接Arthas。</p>
|
|
|
<div class="toctree-wrapper compound">
|
|
|
<ul>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="web-console.html">Web Console</a></li>
|
|
|
</ul>
|
|
|
</div>
|
|
|
</div>
|
|
|
<div class="section" id="id5">
|
|
|
<h2>其他特性<a class="headerlink" href="#id5" title="永久链接至标题">¶</a></h2>
|
|
|
<div class="toctree-wrapper compound">
|
|
|
<ul>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="async.html">异步命令支持</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="save-log.html">执行结果存日志</a></li>
|
|
|
<li class="toctree-l1"><a class="reference internal" href="batch-support.html">批处理的支持</a></li>
|
|
|
<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/issues/11">ognl表达式的用法说明</a></li>
|
|
|
</ul>
|
|
|
</div>
|
|
|
</div>
|
|
|
</div>
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
<footer>
|
|
|
|
|
|
<div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
|
|
|
|
|
|
<a href="web-console.html" class="btn btn-neutral float-right" title="Web Console" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a>
|
|
|
|
|
|
|
|
|
<a href="quick-start.html" class="btn btn-neutral float-left" title="快速入门" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
<hr/>
|
|
|
|
|
|
<div role="contentinfo">
|
|
|
<p>
|
|
|
© Copyright 2018-2019, Alibaba Middleware Group, and contributors
|
|
|
|
|
|
</p>
|
|
|
</div>
|
|
|
Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/rtfd/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
|
|
|
|
|
|
</footer>
|
|
|
|
|
|
</div>
|
|
|
</div>
|
|
|
|
|
|
</section>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<script type="text/javascript">
|
|
|
jQuery(function () {
|
|
|
SphinxRtdTheme.Navigation.enable(true);
|
|
|
});
|
|
|
</script>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<div class="github-fork-ribbon-wrapper right">
|
|
|
<div class="github-fork-ribbon">
|
|
|
<a href="https://github.com/alibaba/arthas" target="_blank">Fork me at GitHub</a>
|
|
|
</div>
|
|
|
</div>
|
|
|
|
|
|
<script type="text/javascript" src="_static/add_badges.js"></script>
|
|
|
|
|
|
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/highlight.min.js"></script>
|
|
|
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlightjs-line-numbers.js/2.5.0/highlightjs-line-numbers.min.js"></script>
|
|
|
<script>
|
|
|
document.querySelectorAll('div.hljs > pre').forEach(function(block) {
|
|
|
hljs.highlightBlock(block);
|
|
|
hljs.lineNumbersBlock(block);
|
|
|
});
|
|
|
</script>
|
|
|
|
|
|
<script>
|
|
|
var _hmt = _hmt || [];
|
|
|
(function() {
|
|
|
var hm = document.createElement("script");
|
|
|
hm.src = "https://hm.baidu.com/hm.js?d5c5e25b100f0eb51a4c35c8a86ea9b4";
|
|
|
var s = document.getElementsByTagName("script")[0];
|
|
|
s.parentNode.insertBefore(hm, s);
|
|
|
})();
|
|
|
</script>
|
|
|
|
|
|
|
|
|
|
|
|
</body>
|
|
|
</html> |