下载

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root@platform-green-5d77977ffc-nw8dm:/# curl -O https://arthas.aliyun.com/arthas-boot.jar
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  138k  100  138k    0     0   367k      0 --:--:-- --:--:-- --:--:--  367k

启动

启动后按1，1为进程ID

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root@platform-green-5d77977ffc-nw8dm:/# java -jar arthas-boot.jar
[INFO] JAVA_HOME: /usr/local/openjdk-11
[INFO] arthas-boot version: 3.7.2
[INFO] Found existing java process, please choose one and input the serial number of the process, eg : 1. Then hit ENTER.
* [1]: 1 platform-0.5.6-SNAPSHOT.jar
1
[INFO] Start download arthas from remote server: https://arthas.aliyun.com/download/3.7.2?mirror=aliyun
[INFO] Download arthas success.
[INFO] arthas home: /root/.arthas/lib/3.7.2/arthas
[INFO] Try to attach process 1
Picked up JAVA_TOOL_OPTIONS: 
[INFO] Attach process 1 success.
[INFO] arthas-client connect 127.0.0.1 3658
  ,---.  ,------. ,--------.,--.  ,--.  ,---.   ,---.                           
 /  O  \ |  .--. ''--.  .--'|  '--'  | /  O  \ '   .-'                          
|  .-.  ||  '--'.'   |  |   |  .--.  ||  .-.  |`.  `-.                          
|  | |  ||  |\  \    |  |   |  |  |  ||  | |  |.-'    |                         
`--' `--'`--' '--'   `--'   `--'  `--'`--' `--'`-----'                          

wiki       https://arthas.aliyun.com/doc                                        
tutorials  https://arthas.aliyun.com/doc/arthas-tutorials.html                  
version    3.7.2                                                                
main_class                                                                      
pid        1                                                                    
time       2024-09-05 11:31:56

查看内存信息

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[arthas@1]$ memory
Memory                                                                    used                    total                    max                     usage                    
heap                                                                      2819M                   10240M                   10240M                  27.54%                   
g1_eden_space                                                             816M                    6220M                    -1                      13.12%                   
g1_old_gen                                                                1771M                   3788M                    10240M                  17.30%                   
g1_survivor_space                                                         232M                    232M                     -1                      100.00%                  
nonheap                                                                   349M                    367M                     1256M                   27.85%                   
codeheap_'non-nmethods'                                                   1M                      2M                       5M                      31.82%                   
metaspace                                                                 204M                    215M                     512M                    39.98%                   
codeheap_'profiled_nmethods'                                              65M                     67M                      117M                    56.26%                   
compressed_class_space                                                    23M                     27M                      504M                    4.62%                    
codeheap_'non-profiled_nmethods'                                          54M                     54M                      117M                    46.12%                   
mapped                                                                    0K                      0K                       -                       0.00%                    
direct                                                                    69M                     69M                      -                       100.00%