Arthas-monitor命令监控方法调用次数、成功次数、失败次数、平局响应时间和失败率_旅游资讯

Arthas-monitor命令监控方法调用次数、成功次数、失败次数、平局响应时间和失败率

admin

2024-02-20 14:13:45

monitor 命令是一个非实时返回命令.

实时返回命令是输入之后立即返回，而非实时返回的命令，则是不断的等待目标 Java 进程返回信息，直到用户输入 Ctrl+C 为止。

服务端是以任务的形式在后台跑任务，植入的代码随着任务的中止而不会被执行，所以任务关闭后，不会对原有性能产生太大影响，而且原则上，任何 Arthas 命令不会引起原有业务逻辑的改变。

监控的维度说明

监控项	说明
timestamp	时间戳
class	Java 类
method	方法（构造方法、普通方法）
total	调用次数
success	成功次数
fail	失败次数
rt	平均 RT
fail-rate	失败率

参数说明

方法拥有一个命名参数 [c:]，意思是统计周期（cycle of output），拥有一个整型的参数值

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
[c:]	统计周期，默认值为 120 秒
[b]	在方法调用之前计算 condition-express

使用参考

$ monitor -c 5 demo.MathGame primeFactors
Press Ctrl+C to abort.
Affect(class-cnt:1 , method-cnt:1) cost in 94 ms.timestamp            class          method        total  success  fail  avg-rt(ms)  fail-rate
-----------------------------------------------------------------------------------------------2018-12-03 19:06:38  demo.MathGame  primeFactors  5      1        4     1.15        80.00%timestamp            class          method        total  success  fail  avg-rt(ms)  fail-rate
-----------------------------------------------------------------------------------------------2018-12-03 19:06:43  demo.MathGame  primeFactors  5      3        2     42.29       40.00%timestamp            class          method        total  success  fail  avg-rt(ms)  fail-rate
-----------------------------------------------------------------------------------------------2018-12-03 19:06:48  demo.MathGame  primeFactors  5      3        2     67.92       40.00%timestamp            class          method        total  success  fail  avg-rt(ms)  fail-rate
-----------------------------------------------------------------------------------------------2018-12-03 19:06:53  demo.MathGame  primeFactors  5      2        3     0.25        60.00%timestamp            class          method        total  success  fail  avg-rt(ms)  fail-rate
-----------------------------------------------------------------------------------------------2018-12-03 19:06:58  demo.MathGame  primeFactors  1      1        0     0.45        0.00%timestamp            class          method        total  success  fail  avg-rt(ms)  fail-rate
-----------------------------------------------------------------------------------------------2018-12-03 19:07:03  demo.MathGame  primeFactors  2      2        0     3182.72     0.00%

计算条件表达式过滤统计结果(方法执行完毕之后)

monitor -c 5 demo.MathGame primeFactors "params[0] <= 2"
Press Q or Ctrl+C to abort.
Affect(class count: 1 , method count: 1) cost in 19 ms, listenerId: 5timestamp            class          method         total  success  fail  avg-rt(ms)  fail-rate
-----------------------------------------------------------------------------------------------2020-09-02 09:42:36  demo.MathGame  primeFactors    5       3       2      0.09       40.00%timestamp            class          method         total  success  fail  avg-rt(ms)  fail-rate
----------------------------------------------------------------------------------------------2020-09-02 09:42:41  demo.MathGame  primeFactors    5       2       3      0.11       60.00%timestamp            class          method         total  success  fail  avg-rt(ms)  fail-rate
----------------------------------------------------------------------------------------------2020-09-02 09:42:46  demo.MathGame  primeFactors    5       1       4      0.06       80.00%timestamp            class          method         total  success  fail  avg-rt(ms)  fail-rate
----------------------------------------------------------------------------------------------2020-09-02 09:42:51  demo.MathGame  primeFactors    5       1       4      0.12       80.00%timestamp            class          method         total  success  fail  avg-rt(ms)  fail-rate
----------------------------------------------------------------------------------------------2020-09-02 09:42:56  demo.MathGame  primeFactors    5       3       2      0.15       40.00%

计算条件表达式过滤统计结果(方法执行完毕之前)

monitor -b -c 5 com.test.testes.MathGame primeFactors "params[0] <= 2"
Press Q or Ctrl+C to abort.
Affect(class count: 1 , method count: 1) cost in 21 ms, listenerId: 4timestamp            class          method         total  success  fail  avg-rt(ms)  fail-rate
----------------------------------------------------------------------------------------------2020-09-02 09:41:57  demo.MathGame  primeFactors    1       0        1      0.10      100.00%timestamp            class          method         total  success  fail  avg-rt(ms)  fail-rate
----------------------------------------------------------------------------------------------2020-09-02 09:42:02  demo.MathGame  primeFactors    3       0        3      0.06      100.00%timestamp            class          method         total  success  fail  avg-rt(ms)  fail-rate
----------------------------------------------------------------------------------------------2020-09-02 09:42:07  demo.MathGame  primeFactors    2       0        2      0.06      100.00%timestamp            class          method         total  success  fail  avg-rt(ms)  fail-rate
----------------------------------------------------------------------------------------------2020-09-02 09:42:12  demo.MathGame  primeFactors    1       0        1      0.05      100.00%timestamp            class          method         total  success  fail  avg-rt(ms)  fail-rate
----------------------------------------------------------------------------------------------2020-09-02 09:42:17  demo.MathGame  primeFactors    2       0        2      0.10      100.00%

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