First need to download the arthas tool: official website link https://github.com/alibaba/arthas/blob/master/README_CN.md
Download method: curl -O https://arthas.aliyun.com/arthas-boot.jar
运行 arthas ： java -jararthas-boot.jar
| command | Command description | Chinese description |
|---|---|---|
| help | Display Arthas Help | View command help information |
| keymap | Display all the available keymap for the specified connection. | Arthas shortcut key list and custom shortcut keys |
| sc | Search all the classes loaded by JVM | View JVM loaded class information |
| sm | Search the method of classes loaded by JVM | View method information of loaded classes |
| classloader | Show classloader info | View classloader inheritance tree, urls, class loading information |
| jad | Decompile class | Decompile the source code of the specified loaded class |
| getstatic | Show the static field of a class | You can easily view the static properties of the class through the getstatic command |
| monitor | Monitor method execution statistics, e.g. total/success/failure count, average rt, fail rate, etc. | Method execution monitoring |
| stack | Display the stack trace for the specified class and method | Output the call path of the current method being called |
| thread | Display thread info, thread stack | View current thread information, view thread stack |
| trace | Trace the execution time of specified method invocation. | Method internal call path, and output the time-consuming on each node on the method path |
| watch | Display the input/output parameter, return object, and thrown exception of specified method invocation | Method to perform data observation |
| tt | Time Tunnel | The method executes the time-space tunnel of data, records the input parameters and return information of each call of the specified method, and can observe the calls at these different times |
| jvm | Display the target JVM information | View current JVM information |
| perfcounter | Display the perf counter infornation. | View the Perf Counter information of the current JVM |
| ognl | Execute ognl expression. | Execute ognl expression |
| mc | Memory compiler, compiles java files into bytecode and class files in memory. | Memory Compiler / memory compiler, compiled .javafile generation.class |
| redefine | Redefine classes. @see Instrumentation#redefineClasses(ClassDefinition...) | Load external .classfiles and redefine the loaded classes of jvm. |
| dashboard | Overview of target jvm's thread, memory, gc, vm, tomcat info. | For the real-time data panel of the current system, press ctrl+c to exit. |
| dump | Dump class byte array from JVM | dump 已加载类的 bytecode 到特定目录 |
| heapdump | Heap dump | dump java heap, 类似jmap命令的heap dump功能 |
| options | View and change various Arthas options | 全局开关 |
| cls | Clear the screen | 清空当前屏幕区域 |
| reset | Reset all the enhanced classes | 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 |
| version | Display Arthas version | 输出当前目标 Java 进程所加载的 Arthas 版本号 |
| session | Display current session information | 查看当前会话的信息 |
| sysprop | Display, and change the system properties. | 查看当前JVM的系统属性(System Property) |
| sysenv | Display the system env. | 查看当前JVM的环境属性(System Environment Variables) |
| vmoption | Display, and update the vm diagnostic options. | 查看，更新VM诊断相关的参数 |
| logger | Print logger info, and update the logger level | 查看logger信息，更新logger level |
| history | Display command history | 打印命令历史 |
| cat | Concatenate and print files | 打印文件内容，和linux里的cat命令类似。 |
| echo | write arguments to the standard output | 打印参数，和linux里的echo命令类似。 |
| pwd | Return working directory name | 返回当前的工作目录，和linux命令类似 |
| mbean | Display the mbean information | 查看 Mbean 的信息 |
| grep | grep command for pipes. | 类似传统的grep命令。 |
| tee | tee command for pipes. | 类似传统的tee命令, 用于读取标准输入的数据，并将其内容输出成文件。 |
| profiler | Async Profiler. https://github.com/jvm-profiling-tools/async-profiler | 使用async-profiler生成火焰图 |
| stop | Stop/Shutdown Arthas server and exit the console. | 关闭 Arthas 服务端，所有 Arthas 客户端全部退出 |
文章最后，给大家推荐一些受欢迎的技术博客链接：
- JAVA相关的深度技术博客链接
- Flink 相关技术博客链接
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- 设计模式 —— 深度技术博客链接
- 机器学习 —— 深度技术博客链接
- Hadoop相关技术博客链接
- 超全干货--Flink思维导图，花了3周左右编写、校对
- 深入JAVA 的JVM核心原理解决线上各种故障【附案例】
- 请谈谈你对volatile的理解？--最近小李子与面试官的一场“硬核较量”
- 聊聊RPC通信，经常被问到的一道面试题。源码+笔记，包懂
- 深入聊聊Java 垃圾回收机制【附原理图及调优方法】
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