stack

输出当前方法被调用的调用路径

很多时候我们都知道一个方法被执行，但这个方法被执行的路径非常多，或者你根本就不知道这个方法是从那里被执行了，此时你需要的是 stack 命令。

参数说明

参数名称 参数说明
class-pattern 类名表达式匹配
method-pattern 方法名表达式匹配
condition-express 条件表达式
[E] 开启正则表达式匹配，默认为通配符匹配
[n:] 执行次数限制

这里重点要说明的是观察表达式，观察表达式的构成主要由 ognl 表达式组成，所以你可以这样写"{params,returnObj}"，只要是一个合法的 ognl 表达式，都能被正常支持。

观察的维度也比较多，主要体现在参数 advice 的数据结构上。Advice 参数最主要是封装了通知节点的所有信息。

请参考表达式核心变量中关于该节点的描述。

使用例子

注意：如果表达式里面包含了引号，那么需要把整个表达式用引号括起来，如果表达式中没有包含引号，那么可以不用引号。当然，一个好的习惯是，不管表达式中有没有引号，都使用引号括起来。
  1. $ stack com.alibaba.sample.petstore.dal.dao.ProductDao getProductById 'params[0]=="K9-BD-01"'
  2. Press Ctrl+C to abort.
  3. Affect(class-cnt:1 , method-cnt:1) cost in 51 ms.
  4. thread_name="http-bio-8080-exec-4" thread_id=0x4a;is_daemon=true;priority=5;
  5.     @com.alibaba.sample.petstore.dal.dao.ibatis.IbatisProductDao.getProductById()
  6.         at com.alibaba.sample.petstore.web.store.module.screen.ItemList.execute(ItemList.java:50)
  7.         at com.alibaba.sample.petstore.web.store.module.screen.ItemList$$FastClassByCGLIB$$40b2f45f.invoke(<generated>:-1)
  8.         at net.sf.cglib.reflect.FastMethod.invoke(FastMethod.java:53)
  9.         at com.alibaba.citrus.service.moduleloader.impl.adapter.MethodInvoker.invoke(MethodInvoker.java:70)
  10.         at com.alibaba.citrus.service.moduleloader.impl.adapter.DataBindingAdapter.executeAndReturn(DataBindingAdapter.java:41)
  11.         at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.performScreenModule(PerformScreenValve.java:111)
  12.         at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.invoke(PerformScreenValve.java:74)
  13.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
  14.         at com.alibaba.citrus.turbine.pipeline.valve.PerformActionValve.invoke(PerformActionValve.java:73)
  15.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
  16.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
  17. ......
  18.  
  19. thread_name="http-bio-8080-exec-2" thread_id=0x48;is_daemon=true;priority=5;
  20.     @com.alibaba.sample.petstore.dal.dao.ibatis.IbatisProductDao.getProductById()
  21.         at com.alibaba.sample.petstore.web.store.module.screen.ItemList.execute(ItemList.java:50)
  22.         at com.alibaba.sample.petstore.web.store.module.screen.ItemList$$FastClassByCGLIB$$40b2f45f.invoke(<generated>:-1)
  23.         at net.sf.cglib.reflect.FastMethod.invoke(FastMethod.java:53)
  24.         at com.alibaba.citrus.service.moduleloader.impl.adapter.MethodInvoker.invoke(MethodInvoker.java:70)
  25.         at com.alibaba.citrus.service.moduleloader.impl.adapter.DataBindingAdapter.executeAndReturn(DataBindingAdapter.java:41)
  26.         at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.performScreenModule(PerformScreenValve.java:111)
  27.         at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.invoke(PerformScreenValve.java:74)
  28.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
  29.         at com.alibaba.citrus.turbine.pipeline.valve.PerformActionValve.invoke(PerformActionValve.java:73)
  30.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
  31.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
  32.         at com.alibaba.citrus.service.pipeline.impl.valve.ChooseValve.invoke(ChooseValve.java:98)
  33.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
  34. ......

按照耗时查询:

  1. $ stack com.alibaba.sample.petstore.web.store.module.screen.ItemList execute #cost>30
  2. Press Ctrl+C to abort.
  3. Affect(class-cnt:1 , method-cnt:1) cost in 123 ms.
  4. stack com.alibaba.sample.petstore.web.store.module.screen.ItemList execute #cost>30
  5. thread_name=http-nio-8080-exec-10;id=31;is_daemon=true;priority=5;TCCL=com.taobao.pandora.boot.embedded.tomcat.TomcatEmbeddedWebappClassLoader
  6.     @com.alibaba.sample.petstore.web.store.module.screen.ItemList.execute()
  7.         at com.alibaba.sample.petstore.web.store.module.screen.ItemList$$FastClassByCGLIB$$40b2f45f.invoke(<generated>:-1)
  8.         at net.sf.cglib.reflect.FastMethod.invoke(FastMethod.java:53)
  9.         at com.alibaba.citrus.service.moduleloader.impl.adapter.MethodInvoker.invoke(MethodInvoker.java:70)
  10.         at com.alibaba.citrus.service.moduleloader.impl.adapter.DataBindingAdapter.executeAndReturn(DataBindingAdapter.java:41)
  11.         at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.performScreenModule(PerformScreenValve.java:111)
  12.         at com.alibaba.citrus.turbine.pipeline.valve.PerformScreenValve.invoke(PerformScreenValve.java:74)
  13.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
  14.         at com.alibaba.citrus.turbine.pipeline.valve.PerformActionValve.invoke(PerformActionValve.java:73)
  15.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
  16.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
  17.         at com.alibaba.citrus.service.pipeline.impl.valve.ChooseValve.invoke(ChooseValve.java:98)
  18.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
  19.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
  20.         at com.alibaba.citrus.service.pipeline.impl.valve.LoopValve.invokeBody(LoopValve.java:105)
  21.         at com.alibaba.citrus.service.pipeline.impl.valve.LoopValve.invoke(LoopValve.java:83)
  22.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
  23.         at com.alibaba.citrus.turbine.pipeline.valve.PageAuthorizationValve.invoke(PageAuthorizationValve.java:105)
  24.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
  25.         at com.alibaba.citrus.turbine.pipeline.valve.CheckCsrfTokenValve.invoke(CheckCsrfTokenValve.java:123)
  26.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
  27.         at com.alibaba.citrus.turbine.pipeline.valve.AnalyzeURLValve.invoke(AnalyzeURLValve.java:126)
  28.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
  29.         at com.alibaba.citrus.turbine.pipeline.valve.SetLoggingContextValve.invoke(SetLoggingContextValve.java:66)
  30.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
  31.         at com.alibaba.citrus.turbine.pipeline.valve.PrepareForTurbineValve.invoke(PrepareForTurbineValve.java:52)
  32.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invokeNext(PipelineImpl.java:157)
  33.         at com.alibaba.citrus.service.pipeline.impl.PipelineImpl$PipelineContextImpl.invoke(PipelineImpl.java:210)
  34.         at com.alibaba.citrus.webx.impl.WebxControllerImpl.service(WebxControllerImpl.java:43)
  35.         at com.alibaba.citrus.webx.impl.WebxRootControllerImpl.handleRequest(WebxRootControllerImpl.java:53)
  36.         at com.alibaba.citrus.webx.support.AbstractWebxRootController.service(AbstractWebxRootController.java:165)
  37. .........
只会打印出耗时超过30ms的堆栈情况

原文: https://alibaba.github.io/arthas/stack.html