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3.0.1-RC-SNAPSHOT
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<div class="section" id="arthas">
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<span id="arthas"></span><h1>启动 Arthas<a class="headerlink" href="#arthas" title="永久链接至标题">¶</a></h1>
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</div>
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<div class="section" id="">
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<span id="id1"></span><h1>交互模式启动<a class="headerlink" href="#" title="永久链接至标题">¶</a></h1>
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<blockquote>
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<div>./as.sh</div></blockquote>
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<div class="highlight-sh notranslate"><div class="highlight"><pre><span></span>➜ bin git:<span class="o">(</span>develop<span class="o">)</span> ✗ ./as.sh
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Found existing java process, please choose one and hit RETURN.
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<span class="o">[</span><span class="m">1</span><span class="o">]</span>: <span class="m">3088</span> org.jetbrains.idea.maven.server.RemoteMavenServer
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* <span class="o">[</span><span class="m">2</span><span class="o">]</span>: <span class="m">12872</span> org.apache.catalina.startup.Bootstrap
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<span class="o">[</span><span class="m">3</span><span class="o">]</span>: <span class="m">2455</span>
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Attaching to <span class="m">12872</span>...
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,---. ,------. ,--------.,--. ,--. ,---. ,---.
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/ O <span class="se">\ </span><span class="p">|</span> .--. <span class="s1">''</span>--. .--<span class="s1">'| '</span>--<span class="s1">' | / O \ '</span> .-<span class="s1">'</span>
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<span class="s1">| .-. || '</span>--<span class="s1">'.'</span> <span class="p">|</span> <span class="p">|</span> <span class="p">|</span> .--. <span class="o">||</span> .-. <span class="p">|</span><span class="sb">`</span>. <span class="sb">`</span>-.
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<span class="p">|</span> <span class="p">|</span> <span class="p">|</span> <span class="o">||</span> <span class="p">|</span><span class="se">\ </span> <span class="se">\ </span> <span class="p">|</span> <span class="p">|</span> <span class="p">|</span> <span class="p">|</span> <span class="p">|</span> <span class="o">||</span> <span class="p">|</span> <span class="p">|</span> <span class="p">|</span>.-<span class="s1">' |</span>
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<span class="s1">`--'</span> <span class="sb">`</span>--<span class="s1">'`--'</span> <span class="s1">'--'</span> <span class="sb">`</span>--<span class="s1">' `--'</span> <span class="sb">`</span>--<span class="s1">'`--'</span> <span class="sb">`</span>--<span class="s1">'`-----'</span>
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$
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</pre></div>
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</div>
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</div>
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<div class="section" id="">
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<span id="id2"></span><h1>非交互模式启动<a class="headerlink" href="#" title="永久链接至标题">¶</a></h1>
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<p>启动脚本如下：</p>
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<blockquote>
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<div>./as.sh <PID>[@IP:PORT]</div></blockquote>
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<div class="section" id="">
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<span id="id3"></span><h2>参数说明<a class="headerlink" href="#" title="永久链接至标题">¶</a></h2>
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<ul class="simple">
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<li>PID：目标 Java 进程 ID（请确保执行当前执行命令的用户必须有足够的权限操作对应的 Java 进程）</li>
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<li>IP：目标服务器 IP 地址，当 Arthas Server 启动后，其他人可以通过指定 IP 的形式加载到对应目标机器的 Java 进程中，从而实现远程协助。Arthas 允许多个用户同时访问，并且各自的命令不会相互干扰执行</li>
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<li>PORT：目标服务器 Arthas Server 的端口号，默认的端口号是 3658</li>
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</ul>
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</div>
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<div class="section" id="">
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<span id="id4"></span><h2>示例<a class="headerlink" href="#" title="永久链接至标题">¶</a></h2>
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<ul>
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<li><p class="first">如果不指定 IP 和 PORT，默认是 127.0.0.1 和 3658</p>
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<blockquote>
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<div><p>./as.sh 12345</p>
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</div></blockquote>
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<p>上述命令等价于：</p>
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<blockquote>
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<div><p>./as.sh 12356@127.0.0.1:3658</p>
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</div></blockquote>
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</li>
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</ul>
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</div>
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<div class="section" id="">
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<span id="id5"></span><h2>远程诊断<a class="headerlink" href="#" title="永久链接至标题">¶</a></h2>
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<p>服务器启动 Arthas Server 后，其他人可以使用 Arthas Console Client 远程连接上去进程诊断，请参考：</p>
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<blockquote>
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<div>./as.sh PID@RemoteIP:RemotePort</div></blockquote>
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<p>其中 PID 为远程服务器上的 Java 进程 ID，RemoteIP 为远程服务器的 IP 地址，RemotePort 为远程服务器上 Arthas Server 的端口，默认为 3658。</p>
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</div>
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<div class="section" id="sudo">
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<span id="sudo"></span><h2>sudo 支持<a class="headerlink" href="#sudo" title="永久链接至标题">¶</a></h2>
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<p>成熟的线上管理环境一般都不会直接开放 JVM 部署用户权限给你，而是通过 sudo-list 来控制和监控用户的越权操作。由于 as.sh 脚本中会对当前用户的环境变量产生感知，所以需要加上 -H 参数</p>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="o">></span> <span class="n">sudo</span> <span class="o">-</span><span class="n">u</span> <span class="n">admin</span> <span class="o">-</span><span class="n">H</span> <span class="o">./</span><span class="k">as</span><span class="o">.</span><span class="n">sh</span> <span class="mi">12345</span>
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</pre></div>
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</div>
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</div>
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<div class="section" id="telnet">
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<span id="telnet"></span><h2>telnet 的支持<a class="headerlink" href="#telnet" title="永久链接至标题">¶</a></h2>
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<p>Arthas 支持通过 telnet 来访问服务端，如果当你手头的机器没有安装 Arthas Console Client，你可以简单的通过 telnet 命令来进行访问。</p>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="o">></span> <span class="n">telnet</span> <span class="mf">10.232</span><span class="o">.</span><span class="mf">12.113</span> <span class="mi">3658</span>
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</pre></div>
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</div>
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<p>当然了，telnet 命令没有 <code class="docutils literal notranslate"><span class="pre">Tab</span></code> 自动补全，各种操作体验也不如 Arthas Client Console。</p>
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</div>
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<div class="section" id="windows">
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<span id="windows"></span><h2>Windows 环境支持<a class="headerlink" href="#windows" title="永久链接至标题">¶</a></h2>
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<ul class="simple">
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<li>目前 Arthas 提供了 <code class="docutils literal notranslate"><span class="pre">as.bat</span></code> 脚本，用于 Windows 环境下的诊断场景；此脚本暂时只接受一个参数 pid，即只能诊断本机上的 Java 进程；</li>
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<li>另外，<code class="docutils literal notranslate"><span class="pre">as.bat</span></code> 脚本在体验方面还有一些问题，如果需要更好的体验，可以在本地使用 <code class="docutils literal notranslate"><span class="pre">as.bat</span> <span class="pre">pid</span></code> 启动 Arthas Server 后，然后在另外的 Linux/Mac 上使用 as.bat pid@ip:port 来远程诊断；</li>
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