arthas的使用

刺骨的言语ヽ痛彻心扉 2022-11-27 00:40 191阅读 0赞

## 写在前面 ##

Arthas是阿里爸爸开源出来的一款java监控工具,命令行操作,完全面向开发人员,其专业行令人发指.

## 安装过程 ##

wget https://alibaba.github.io/arthas/arthas-boot.jar
    java -jar arthas-boot.jar

下载完jar包之后需要联网下载相关的jar包,当然这些操作都是arthas-boot.jar自动执行的

## 相关命令介绍 ##

由于官方文档给的已经很全了我这里就工作中比较常用的几个命令描述下

NAME         DESCRIPTION
     help         Display Arthas Help
     keymap       Display all the available keymap for the specified connection.
     sc           Search all the classes loaded by JVM
     sm           Search the method of classes loaded by JVM
     classloader  Show classloader info
     jad          Decompile class
     getstatic    Show the static field of a class
     monitor      Monitor method execution statistics, e.g. total/success/failure count, average rt, fail rate, etc.
     stack        Display the stack trace for the specified class and method
     thread       Display thread info, thread stack
     trace        Trace the execution time of specified method invocation.
     watch        Display the input/output parameter, return object, and thrown exception of specified method invocation
     tt           Time Tunnel
     jvm          Display the target JVM information
     ognl         Execute ognl expression.
     dashboard    Overview of target jvm's thread, memory, gc, vm, tomcat info.
     dump         Dump class byte array from JVM
     options      View and change various Arthas options
     cls          Clear the screen
     reset        Reset all the enhanced classes
     version      Display Arthas version
     shutdown     Shutdown Arthas server and exit the console
     session      Display current session information
     sysprop      Display, and change the system properties.
     sysenv       Display the system env.
     redefine     Redefine classes. @see Instrumentation#redefineClasses(ClassDefinition...)
     history      Display command history

执行dashboard后结果页面如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2gyNjA0Mzk2NzM5_size_16_color_FFFFFF_t_70][]

## 官方文档 ##

官方文档真的已经很想详细了(阿里爸爸很良心)

*  [中文文档地址][Link 1]
 *  [英文文档地址][Link 2]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2gyNjA0Mzk2NzM5_size_16_color_FFFFFF_t_70]: /images/20221124/816d8e4681534def8f83e9c661e19523.png
[Link 1]: https://alibaba.github.io/arthas/index.html
[Link 2]: https://alibaba.github.io/arthas/en/index.html