Arthas3.1.1使用

原創

2020-04-29 07:17

概述

Arthas 是Alibaba開源的Java診斷工具，方便開發者進行問題的定位和診斷。當遇到 Java 線上問題時，如 CPU 飆升、負載突高、內存溢出等問題，你需要查命令，查網絡，然後 jps、jstack、jmap、jhat、jstat、hprof 等一通操作。最終焦頭爛額，還不一定能查出問題所在。而現在，大多數的常見問題你都可以使用 Arthas 輕鬆定位，迅速解決，及時止損，準時下班。

完整包

啓動程序

方式(1)

D:\soft\arthas\arthas-packaging-3.1.1>java -jar arthas-boot.jar
[INFO] arthas-boot version: 3.1.1
[INFO] Found existing java process, please choose one and hit RETURN.
* [1]: 5900
[2]: 6652 org.codehaus.classworlds.Launcher

輸入2，如果報錯
[INFO] arthas home: D:\soft\arthas\arthas-packaging-3.1.1
[INFO] Try to attach process 9096
[ERROR] Start arthas failed, exception stack trace:
java.lang.NoClassDefFoundError: com/sun/tools/attach/VirtualMachine
        at com.taobao.arthas.core.Arthas.attachAgent(Arthas.java:64)
        at com.taobao.arthas.core.Arthas.<init>(Arthas.java:28)
        at com.taobao.arthas.core.Arthas.main(Arthas.java:113)
Caused by: java.lang.ClassNotFoundException: com.sun.tools.attach.VirtualMachine
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(Unknown Source)
        at java.base/java.lang.ClassLoader.loadClass(Unknown Source)
        ... 3 more
[ERROR] attach fail, targetPid: 9096
缺少jdk中的tool.jar導致的，使用 -cp .:D:\soft\arthas\arthas-packaging-3.1.1\lib 導入 tool.jar 包

D:\soft\arthas\arthas-packaging-3.1.1>java -cp .:D:\soft\arthas\arthas-packaging-3.1.1\lib -jar arthas-boot.jar
[INFO] arthas-boot version: 3.1.1
[INFO] Process 10380 already using port 3658
[INFO] Process 10380 already using port 8563
[INFO] Found existing java process, please choose one and hit RETURN.
* [1]: 10380 org.codehaus.classworlds.Launcher
[2]: 12324 org.jetbrains.jps.cmdline.Launcher
[3]: 9096
1
[INFO] arthas home: D:\soft\arthas\arthas-packaging-3.1.1
[INFO] The target process already listen port 3658, skip attach.
[INFO] arthas-client connect 127.0.0.1 3658

方式(2)

D:\soft\arthas\arthas-packaging-3.1.1>as.bat 8372
JAVA_HOME: D:\soft\Java\jdk1.8.0_151
telnet port: 3658
http port: 8563
信息: 用提供的模式無法找到文件。
telnet wasn't found, please google how to install telnet under windows.
Try to visit http://127.0.0.1:8563 to connecto arthas server.

備註：8372是java進程id

啓動成功