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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><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas/releases" rel="noopener noreferrer" target="_blank" aria-label="Release Notes"><!--[--><!--]--><span>Release Notes</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><a href="/doc/contact-us.md" class="sidebar-item" aria-label="QQ群/钉钉群"><!--[--><!--]--> QQ群/钉钉群 <!--[--><!--]--></a><!----></li><!--]--></ul></li><!--]--></ul><!--[--><!--]--></aside><!--]--><!--[--><main class="page" data-v-e0e60120><!--[--><!--]--><div class="right-menu-padding theme-default-content" data-v-e0e60120><!--[--><!--]--><div class="right-menu-wrapper" data-v-e0e60120 data-v-7f642c19><div class="right-menu-margin" data-v-7f642c19><div class="right-menu-title" data-v-7f642c19>目录</div><div class="right-menu-content" data-v-7f642c19><!--[--><!--]--></div></div></div><div data-v-e0e60120><h1 id="thread" tabindex="-1"><a class="header-anchor" href="#thread" aria-hidden="true">#</a> thread</h1><p><a href="https://arthas.aliyun.com/doc/arthas-tutorials.html?language=cn&id=command-thread" target="_blank" rel="noopener noreferrer"><code>thread</code>在线教程<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></p><div class="custom-container tip"><p class="custom-container-title">提示</p><p>查看当前线程信息，查看线程的堆栈</p></div><h3 id="参数说明" tabindex="-1"><a class="header-anchor" href="#参数说明" aria-hidden="true">#</a> 参数说明</h3><table><thead><tr><th style="text-align:right;">参数名称</th><th style="text-align:left;">参数说明</th></tr></thead><tbody><tr><td style="text-align:right;"><em>id</em></td><td style="text-align:left;">线程 id</td></tr><tr><td style="text-align:right;">[n:]</td><td style="text-align:left;">指定最忙的前 N 个线程并打印堆栈</td></tr><tr><td style="text-align:right;">[b]</td><td style="text-align:left;">找出当前阻塞其他线程的线程</td></tr><tr><td style="text-align:right;">[i <code><value></code>]</td><td style="text-align:left;">指定 cpu 使用率统计的采样间隔，单位为毫秒，默认值为 200</td></tr><tr><td style="text-align:right;">[--all]</td><td style="text-align:left;">显示所有匹配的线程</td></tr></tbody></table><h3 id="cpu-使用率是如何统计出来的" tabindex="-1"><a class="header-anchor" href="#cpu-使用率是如何统计出来的" aria-hidden="true">#</a> cpu 使用率是如何统计出来的？</h3><p>这里的 cpu 使用率与 linux 命令<code>top -H -p <pid></code> 的线程<code>%CPU</code>类似，一段采样间隔时间内，当前 JVM 里各个线程的增量 cpu 时间与采样间隔时间的比例。</p><h4 id="工作原理说明" tabindex="-1"><a class="header-anchor" href="#工作原理说明" aria-hidden="true">#</a> 工作原理说明：</h4><ul><li>首先第一次采样，获取所有线程的 CPU 时间(调用的是<code>java.lang.management.ThreadMXBean#getThreadCpuTime()</code>及<code>sun.management.HotspotThreadMBean.getInternalThreadCpuTimes()</code>接口)</li><li>然后睡眠等待一个间隔时间（默认为 200ms，可以通过<code>-i</code>指定间隔时间）</li><li>再次第二次采样，获取所有线程的 CPU 时间，对比两次采样数据，计算出每个线程的增量 CPU 时间</li><li>线程 CPU 使用率 = 线程增量 CPU 时间 / 采样间隔时间 * 100%</li></ul><div class="custom-container warning"><p class="custom-container-title">注意</p><p>注意： 这个统计也会产生一定的开销（JDK 这个接口本身开销比较大），因此会看到 as 的线程占用一定的百分比，为了降低统计自身的开销带来的影响，可以把采样间隔拉长一些，比如 5000 毫秒。</p></div><div class="custom-container tip"><p class="custom-container-title">提示</p><p>另外一种查看 Java 进程的线程 cpu 使用率方法：可以使用<a href="https://github.com/oldratlee/useful-scripts/blob/dev-2.x/docs/java.md#-show-busy-java-threads" target="_blank" rel="noopener noreferrer"><code>show-busy-java-threads</code><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>这个脚本。</p></div><h3 id="使用参考" tabindex="-1"><a class="header-anchor" href="#使用参考" aria-hidden="true">#</a> 使用参考</h3><h4 id="支持一键展示当前最忙的前-n-个线程并打印堆栈" tabindex="-1"><a class="header-anchor" href="#支持一键展示当前最忙的前-n-个线程并打印堆栈" aria-hidden="true">#</a> 支持一键展示当前最忙的前 N 个线程并打印堆栈：</h4><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ thread -n <span class="token number">3</span>
|
||
<span class="token string">"C1 CompilerThread0"</span> <span class="token punctuation">[</span>Internal<span class="token punctuation">]</span> <span class="token assign-left variable">cpuUsage</span><span class="token operator">=</span><span class="token number">1.63</span>% <span class="token assign-left variable">deltaTime</span><span class="token operator">=</span>3ms <span class="token assign-left variable">time</span><span class="token operator">=</span>1170ms
|
||
|
||
|
||
<span class="token string">"arthas-command-execute"</span> <span class="token assign-left variable">Id</span><span class="token operator">=</span><span class="token number">23</span> <span class="token assign-left variable">cpuUsage</span><span class="token operator">=</span><span class="token number">0.11</span>% <span class="token assign-left variable">deltaTime</span><span class="token operator">=</span>0ms <span class="token assign-left variable">time</span><span class="token operator">=</span>401ms RUNNABLE
|
||
at java.management@11.0.7/sun.management.ThreadImpl.dumpThreads0<span class="token punctuation">(</span>Native Method<span class="token punctuation">)</span>
|
||
at java.management@11.0.7/sun.management.ThreadImpl.getThreadInfo<span class="token punctuation">(</span>ThreadImpl.java:466<span class="token punctuation">)</span>
|
||
at com.taobao.arthas.core.command.monitor200.ThreadCommand.processTopBusyThreads<span class="token punctuation">(</span>ThreadCommand.java:199<span class="token punctuation">)</span>
|
||
at com.taobao.arthas.core.command.monitor200.ThreadCommand.process<span class="token punctuation">(</span>ThreadCommand.java:122<span class="token punctuation">)</span>
|
||
at com.taobao.arthas.core.shell.command.impl.AnnotatedCommandImpl.process<span class="token punctuation">(</span>AnnotatedCommandImpl.java:82<span class="token punctuation">)</span>
|
||
at com.taobao.arthas.core.shell.command.impl.AnnotatedCommandImpl.access<span class="token variable">$100</span><span class="token punctuation">(</span>AnnotatedCommandImpl.java:18<span class="token punctuation">)</span>
|
||
at com.taobao.arthas.core.shell.command.impl.AnnotatedCommandImpl<span class="token variable">$ProcessHandler</span>.handle<span class="token punctuation">(</span>AnnotatedCommandImpl.java:111<span class="token punctuation">)</span>
|
||
at com.taobao.arthas.core.shell.command.impl.AnnotatedCommandImpl<span class="token variable">$ProcessHandler</span>.handle<span class="token punctuation">(</span>AnnotatedCommandImpl.java:108<span class="token punctuation">)</span>
|
||
at com.taobao.arthas.core.shell.system.impl.ProcessImpl<span class="token variable">$CommandProcessTask</span>.run<span class="token punctuation">(</span>ProcessImpl.java:385<span class="token punctuation">)</span>
|
||
at java.base@11.0.7/java.util.concurrent.Executors<span class="token variable">$RunnableAdapter</span>.call<span class="token punctuation">(</span>Executors.java:515<span class="token punctuation">)</span>
|
||
at java.base@11.0.7/java.util.concurrent.FutureTask.run<span class="token punctuation">(</span>FutureTask.java:264<span class="token punctuation">)</span>
|
||
at java.base@11.0.7/java.util.concurrent.ScheduledThreadPoolExecutor<span class="token variable">$ScheduledFutureTask</span>.run<span class="token punctuation">(</span>ScheduledThreadPoolExecutor.java:304<span class="token punctuation">)</span>
|
||
at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor.runWorker<span class="token punctuation">(</span>ThreadPoolExecutor.java:1128<span class="token punctuation">)</span>
|
||
at java.base@11.0.7/java.util.concurrent.ThreadPoolExecutor<span class="token variable">$Worker</span>.run<span class="token punctuation">(</span>ThreadPoolExecutor.java:628<span class="token punctuation">)</span>
|
||
at java.base@11.0.7/java.lang.Thread.run<span class="token punctuation">(</span>Thread.java:834<span class="token punctuation">)</span>
|
||
|
||
|
||
<span class="token string">"VM Periodic Task Thread"</span> <span class="token punctuation">[</span>Internal<span class="token punctuation">]</span> <span class="token assign-left variable">cpuUsage</span><span class="token operator">=</span><span class="token number">0.07</span>% <span class="token assign-left variable">deltaTime</span><span class="token operator">=</span>0ms <span class="token assign-left variable">time</span><span class="token operator">=</span>584ms
|
||
</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 class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>没有线程 ID，包含<code>[Internal]</code>表示为 JVM 内部线程，参考<a href="/doc/dashboard.html" class="">dashboard</a>命令的介绍。</li><li><code>cpuUsage</code>为采样间隔时间内线程的 CPU 使用率，与<a href="/doc/dashboard.html" class="">dashboard</a>命令的数据一致。</li><li><code>deltaTime</code>为采样间隔时间内线程的增量 CPU 时间，小于 1ms 时被取整显示为 0ms。</li><li><code>time</code> 线程运行总 CPU 时间。</li></ul><p>注意：线程栈为第二采样结束时获取，不能表明采样间隔时间内该线程都是在处理相同的任务。建议间隔时间不要太长，可能间隔时间越大越不准确。 可以根据具体情况尝试指定不同的间隔时间，观察输出结果。</p><h4 id="当没有参数时-显示第一页线程的信息" tabindex="-1"><a class="header-anchor" href="#当没有参数时-显示第一页线程的信息" aria-hidden="true">#</a> 当没有参数时，显示第一页线程的信息</h4><p>默认按照 CPU 增量时间降序排列，只显示第一页数据。</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ thread
|
||
Threads Total: <span class="token number">33</span>, NEW: <span class="token number">0</span>, RUNNABLE: <span class="token number">9</span>, BLOCKED: <span class="token number">0</span>, WAITING: <span class="token number">3</span>, TIMED_WAITING: <span class="token number">4</span>, TERMINATED: <span class="token number">0</span>, Internal threads: <span class="token number">17</span>
|
||
ID NAME GROUP PRIORITY STATE %CPU DELTA_TIME TIME INTERRUPT DAEMON
|
||
-1 C2 CompilerThread0 - -1 - <span class="token number">5.06</span> <span class="token number">0.010</span> <span class="token number">0</span>:0.973 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
-1 C1 CompilerThread0 - -1 - <span class="token number">0.95</span> <span class="token number">0.001</span> <span class="token number">0</span>:0.603 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
<span class="token number">23</span> arthas-command-execute system <span class="token number">5</span> RUNNABLE <span class="token number">0.17</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.226 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
-1 VM Periodic Task Thread - -1 - <span class="token number">0.05</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.094 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
-1 Sweeper thread - -1 - <span class="token number">0.04</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.011 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
-1 G1 Young RemSet Sampling - -1 - <span class="token number">0.02</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.025 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
<span class="token number">12</span> Attach Listener system <span class="token number">9</span> RUNNABLE <span class="token number">0.0</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.022 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
<span class="token number">11</span> Common-Cleaner InnocuousThrea <span class="token number">8</span> TIMED_WAI <span class="token number">0.0</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.000 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
<span class="token number">3</span> Finalizer system <span class="token number">8</span> WAITING <span class="token number">0.0</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.000 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
<span class="token number">2</span> Reference Handler system <span class="token number">10</span> RUNNABLE <span class="token number">0.0</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.000 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
<span class="token number">4</span> Signal Dispatcher system <span class="token number">9</span> RUNNABLE <span class="token number">0.0</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.000 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
<span class="token number">15</span> arthas-NettyHttpTelnetBootstra system <span class="token number">5</span> RUNNABLE <span class="token number">0.0</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.029 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
<span class="token number">22</span> arthas-NettyHttpTelnetBootstra system <span class="token number">5</span> RUNNABLE <span class="token number">0.0</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.196 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
<span class="token number">24</span> arthas-NettyHttpTelnetBootstra system <span class="token number">5</span> RUNNABLE <span class="token number">0.0</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.038 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
<span class="token number">16</span> arthas-NettyWebsocketTtyBootst system <span class="token number">5</span> RUNNABLE <span class="token number">0.0</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.001 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
<span class="token number">17</span> arthas-NettyWebsocketTtyBootst system <span class="token number">5</span> RUNNABLE <span class="token number">0.0</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.001 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
</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 class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="thread-all-显示所有匹配的线程" tabindex="-1"><a class="header-anchor" href="#thread-all-显示所有匹配的线程" aria-hidden="true">#</a> thread --all, 显示所有匹配的线程</h4><p>显示所有匹配线程信息，有时需要获取全部 JVM 的线程数据进行分析。</p><h4 id="thread-id-显示指定线程的运行堆栈" tabindex="-1"><a class="header-anchor" href="#thread-id-显示指定线程的运行堆栈" aria-hidden="true">#</a> thread id, 显示指定线程的运行堆栈</h4><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ thread <span class="token number">1</span>
|
||
<span class="token string">"main"</span> <span class="token assign-left variable">Id</span><span class="token operator">=</span><span class="token number">1</span> WAITING on java.util.concurrent.CountDownLatch<span class="token variable">$Sync</span>@29fafb28
|
||
at sun.misc.Unsafe.park<span class="token punctuation">(</span>Native Method<span class="token punctuation">)</span>
|
||
- waiting on java.util.concurrent.CountDownLatch<span class="token variable">$Sync</span>@29fafb28
|
||
at java.util.concurrent.locks.LockSupport.park<span class="token punctuation">(</span>LockSupport.java:175<span class="token punctuation">)</span>
|
||
at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt<span class="token punctuation">(</span>AbstractQueuedSynchronizer.java:836<span class="token punctuation">)</span>
|
||
at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly<span class="token punctuation">(</span>AbstractQueuedSynchronizer.java:997<span class="token punctuation">)</span>
|
||
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly<span class="token punctuation">(</span>AbstractQueuedSynchronizer.java:1304<span class="token punctuation">)</span>
|
||
at java.util.concurrent.CountDownLatch.await<span class="token punctuation">(</span>CountDownLatch.java:231<span class="token punctuation">)</span>
|
||
</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 class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="thread-b-找出当前阻塞其他线程的线程" tabindex="-1"><a class="header-anchor" href="#thread-b-找出当前阻塞其他线程的线程" aria-hidden="true">#</a> thread -b, 找出当前阻塞其他线程的线程</h4><p>有时候我们发现应用卡住了， 通常是由于某个线程拿住了某个锁， 并且其他线程都在等待这把锁造成的。 为了排查这类问题， arthas 提供了<code>thread -b</code>， 一键找出那个罪魁祸首。</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ thread -b
|
||
<span class="token string">"http-bio-8080-exec-4"</span> <span class="token assign-left variable">Id</span><span class="token operator">=</span><span class="token number">27</span> TIMED_WAITING
|
||
at java.lang.Thread.sleep<span class="token punctuation">(</span>Native Method<span class="token punctuation">)</span>
|
||
at test.arthas.TestThreadBlocking.doGet<span class="token punctuation">(</span>TestThreadBlocking.java:22<span class="token punctuation">)</span>
|
||
- locked java.lang.Object@725be470 <span class="token operator"><</span>---- but blocks <span class="token number">4</span> other threads<span class="token operator">!</span>
|
||
at javax.servlet.http.HttpServlet.service<span class="token punctuation">(</span>HttpServlet.java:624<span class="token punctuation">)</span>
|
||
at javax.servlet.http.HttpServlet.service<span class="token punctuation">(</span>HttpServlet.java:731<span class="token punctuation">)</span>
|
||
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter<span class="token punctuation">(</span>ApplicationFilterChain.java:303<span class="token punctuation">)</span>
|
||
at org.apache.catalina.core.ApplicationFilterChain.doFilter<span class="token punctuation">(</span>ApplicationFilterChain.java:208<span class="token punctuation">)</span>
|
||
at org.apache.tomcat.websocket.server.WsFilter.doFilter<span class="token punctuation">(</span>WsFilter.java:52<span class="token punctuation">)</span>
|
||
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter<span class="token punctuation">(</span>ApplicationFilterChain.java:241<span class="token punctuation">)</span>
|
||
at org.apache.catalina.core.ApplicationFilterChain.doFilter<span class="token punctuation">(</span>ApplicationFilterChain.java:208<span class="token punctuation">)</span>
|
||
at test.filter.TestDurexFilter.doFilter<span class="token punctuation">(</span>TestDurexFilter.java:46<span class="token punctuation">)</span>
|
||
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter<span class="token punctuation">(</span>ApplicationFilterChain.java:241<span class="token punctuation">)</span>
|
||
at org.apache.catalina.core.ApplicationFilterChain.doFilter<span class="token punctuation">(</span>ApplicationFilterChain.java:208<span class="token punctuation">)</span>
|
||
at org.apache.catalina.core.StandardWrapperValve.invoke<span class="token punctuation">(</span>StandardWrapperValve.java:220<span class="token punctuation">)</span>
|
||
at org.apache.catalina.core.StandardContextValve.invoke<span class="token punctuation">(</span>StandardContextValve.java:122<span class="token punctuation">)</span>
|
||
at org.apache.catalina.authenticator.AuthenticatorBase.invoke<span class="token punctuation">(</span>AuthenticatorBase.java:505<span class="token punctuation">)</span>
|
||
at com.taobao.tomcat.valves.ContextLoadFilterValve<span class="token variable">$FilterChainAdapter</span>.doFilter<span class="token punctuation">(</span>ContextLoadFilterValve.java:191<span class="token punctuation">)</span>
|
||
at com.taobao.eagleeye.EagleEyeFilter.doFilter<span class="token punctuation">(</span>EagleEyeFilter.java:81<span class="token punctuation">)</span>
|
||
at com.taobao.tomcat.valves.ContextLoadFilterValve.invoke<span class="token punctuation">(</span>ContextLoadFilterValve.java:150<span class="token punctuation">)</span>
|
||
at org.apache.catalina.core.StandardHostValve.invoke<span class="token punctuation">(</span>StandardHostValve.java:170<span class="token punctuation">)</span>
|
||
at org.apache.catalina.valves.ErrorReportValve.invoke<span class="token punctuation">(</span>ErrorReportValve.java:103<span class="token punctuation">)</span>
|
||
at org.apache.catalina.core.StandardEngineValve.invoke<span class="token punctuation">(</span>StandardEngineValve.java:116<span class="token punctuation">)</span>
|
||
at org.apache.catalina.connector.CoyoteAdapter.service<span class="token punctuation">(</span>CoyoteAdapter.java:429<span class="token punctuation">)</span>
|
||
at org.apache.coyote.http11.AbstractHttp11Processor.process<span class="token punctuation">(</span>AbstractHttp11Processor.java:1085<span class="token punctuation">)</span>
|
||
at org.apache.coyote.AbstractProtocol<span class="token variable">$AbstractConnectionHandler</span>.process<span class="token punctuation">(</span>AbstractProtocol.java:625<span class="token punctuation">)</span>
|
||
at org.apache.tomcat.util.net.JIoEndpoint<span class="token variable">$SocketProcessor</span>.run<span class="token punctuation">(</span>JIoEndpoint.java:318<span class="token punctuation">)</span>
|
||
- locked org.apache.tomcat.util.net.SocketWrapper@7127ee12
|
||
at java.util.concurrent.ThreadPoolExecutor.runWorker<span class="token punctuation">(</span>ThreadPoolExecutor.java:1142<span class="token punctuation">)</span>
|
||
at java.util.concurrent.ThreadPoolExecutor<span class="token variable">$Worker</span>.run<span class="token punctuation">(</span>ThreadPoolExecutor.java:617<span class="token punctuation">)</span>
|
||
at org.apache.tomcat.util.threads.TaskThread<span class="token variable">$WrappingRunnable</span>.run<span class="token punctuation">(</span>TaskThread.java:61<span class="token punctuation">)</span>
|
||
at java.lang.Thread.run<span class="token punctuation">(</span>Thread.java:745<span class="token punctuation">)</span>
|
||
|
||
Number of locked synchronizers <span class="token operator">=</span> <span class="token number">1</span>
|
||
- java.util.concurrent.ThreadPoolExecutor<span class="token variable">$Worker</span>@31a6493e
|
||
</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 class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><div class="custom-container warning"><p class="custom-container-title">注意</p><p>注意， 目前只支持找出 synchronized 关键字阻塞住的线程， 如果是<code>java.util.concurrent.Lock</code>， 目前还不支持。</p></div><h4 id="thread-i-指定采样时间间隔" tabindex="-1"><a class="header-anchor" href="#thread-i-指定采样时间间隔" aria-hidden="true">#</a> thread -i, 指定采样时间间隔</h4><ul><li><p><code>thread -i 1000</code> : 统计最近 1000ms 内的线程 CPU 时间。</p></li><li><p><code>thread -n 3 -i 1000</code> : 列出 1000ms 内最忙的 3 个线程栈</p></li></ul><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ thread -n <span class="token number">3</span> -i <span class="token number">1000</span>
|
||
<span class="token string">"as-command-execute-daemon"</span> <span class="token assign-left variable">Id</span><span class="token operator">=</span><span class="token number">4759</span> <span class="token assign-left variable">cpuUsage</span><span class="token operator">=</span><span class="token number">23</span>% RUNNABLE
|
||
at sun.management.ThreadImpl.dumpThreads0<span class="token punctuation">(</span>Native Method<span class="token punctuation">)</span>
|
||
at sun.management.ThreadImpl.getThreadInfo<span class="token punctuation">(</span>ThreadImpl.java:440<span class="token punctuation">)</span>
|
||
at com.taobao.arthas.core.command.monitor200.ThreadCommand.processTopBusyThreads<span class="token punctuation">(</span>ThreadCommand.java:133<span class="token punctuation">)</span>
|
||
at com.taobao.arthas.core.command.monitor200.ThreadCommand.process<span class="token punctuation">(</span>ThreadCommand.java:79<span class="token punctuation">)</span>
|
||
at com.taobao.arthas.core.shell.command.impl.AnnotatedCommandImpl.process<span class="token punctuation">(</span>AnnotatedCommandImpl.java:96<span class="token punctuation">)</span>
|
||
at com.taobao.arthas.core.shell.command.impl.AnnotatedCommandImpl.access<span class="token variable">$100</span><span class="token punctuation">(</span>AnnotatedCommandImpl.java:27<span class="token punctuation">)</span>
|
||
at com.taobao.arthas.core.shell.command.impl.AnnotatedCommandImpl<span class="token variable">$ProcessHandler</span>.handle<span class="token punctuation">(</span>AnnotatedCommandImpl.java:125<span class="token punctuation">)</span>
|
||
at com.taobao.arthas.core.shell.command.impl.AnnotatedCommandImpl<span class="token variable">$ProcessHandler</span>.handle<span class="token punctuation">(</span>AnnotatedCommandImpl.java:122<span class="token punctuation">)</span>
|
||
at com.taobao.arthas.core.shell.system.impl.ProcessImpl<span class="token variable">$CommandProcessTask</span>.run<span class="token punctuation">(</span>ProcessImpl.java:332<span class="token punctuation">)</span>
|
||
at java.util.concurrent.ThreadPoolExecutor.runWorker<span class="token punctuation">(</span>ThreadPoolExecutor.java:1142<span class="token punctuation">)</span>
|
||
at java.util.concurrent.ThreadPoolExecutor<span class="token variable">$Worker</span>.run<span class="token punctuation">(</span>ThreadPoolExecutor.java:617<span class="token punctuation">)</span>
|
||
at java.lang.Thread.run<span class="token punctuation">(</span>Thread.java:756<span class="token punctuation">)</span>
|
||
|
||
Number of locked synchronizers <span class="token operator">=</span> <span class="token number">1</span>
|
||
- java.util.concurrent.ThreadPoolExecutor<span class="token variable">$Worker</span>@546aeec1
|
||
<span class="token punctuation">..</span>.
|
||
</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 class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><h4 id="thread-state-查看指定状态的线程" tabindex="-1"><a class="header-anchor" href="#thread-state-查看指定状态的线程" aria-hidden="true">#</a> thread --state ，查看指定状态的线程</h4><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code><span class="token punctuation">[</span>arthas@28114<span class="token punctuation">]</span>$ thread --state WAITING
|
||
Threads Total: <span class="token number">16</span>, NEW: <span class="token number">0</span>, RUNNABLE: <span class="token number">9</span>, BLOCKED: <span class="token number">0</span>, WAITING: <span class="token number">3</span>, TIMED_WAITING: <span class="token number">4</span>, TERMINATED: <span class="token number">0</span>
|
||
ID NAME GROUP PRIORITY STATE %CPU DELTA_TIME TIME INTERRUPTE DAEMON
|
||
<span class="token number">3</span> Finalizer system <span class="token number">8</span> WAITING <span class="token number">0.0</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.000 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
<span class="token number">20</span> arthas-UserStat system <span class="token number">9</span> WAITING <span class="token number">0.0</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.001 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
<span class="token number">14</span> arthas-timer system <span class="token number">9</span> WAITING <span class="token number">0.0</span> <span class="token number">0.000</span> <span class="token number">0</span>:0.000 <span class="token boolean">false</span> <span class="token boolean">true</span>
|
||
</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 class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div></div><!--[--><!--]--></div><footer class="page-meta right-menu-padding" data-v-e0e60120><div class="meta-item edit-link"><a class="external-link meta-item-label" href="https://github.com/alibaba/arthas/edit/master/site/docs/doc/thread.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: hengyunabc@gmail.com">hengyunabc</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: LHearen@126.com">Hearen</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: hollowman186@vip.qq.com">Hollow Man</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: kylixs@qq.com">gongdewei</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: oldratlee@gmail.com">李鼎</span><!----><!--]--><!--]--></span></div></footer><!----><!--[--><!--]--></main><!--]--></div><!----><!--]--></div>
|
||
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|
||
</body>
|
||
</html>
|