Simple APM

Yet another profiling tool

License	The Apache License, Version 2.0
GroupId	com.github.liuzhengyang
ArtifactId	simple-apm
Last Version	1.10.5
Release Date	Apr 2, 2020
Type	pom
Description	Simple APM Yet another profiling tool
Project URL	http://github.com/liuzhengyang/simple-apm
Source Code Management	https://github.com/liuzhengyang/simple-apm

Download simple-apm

Filename	Size
simple-apm-1.10.5.pom	10 KB

How to add to project

Apache Maven

<!-- https://jarcasting.com/artifacts/com.github.liuzhengyang/simple-apm/ -->
<dependency>
    <groupId>com.github.liuzhengyang</groupId>
    <artifactId>simple-apm</artifactId>
    <version>1.10.5</version>
    <type>pom</type>
</dependency>

Gradle Groovy

// https://jarcasting.com/artifacts/com.github.liuzhengyang/simple-apm/
implementation 'com.github.liuzhengyang:simple-apm:1.10.5'

Gradle Kotlin

// https://jarcasting.com/artifacts/com.github.liuzhengyang/simple-apm/
implementation ("com.github.liuzhengyang:simple-apm:1.10.5")

Apache Buildr

'com.github.liuzhengyang:simple-apm:pom:1.10.5'

Apache Ivy

<dependency org="com.github.liuzhengyang" name="simple-apm" rev="1.10.5">
  <artifact name="simple-apm" type="pom" />
</dependency>

Groovy Grape

@Grapes(
@Grab(group='com.github.liuzhengyang', module='simple-apm', version='1.10.5')
)

Scala SBT

libraryDependencies += "com.github.liuzhengyang" % "simple-apm" % "1.10.5"

Leiningen

[com.github.liuzhengyang/simple-apm "1.10.5"]

Dependencies

compile (22)

Group / Artifact	Type	Version
org.ow2.asm : asm	jar	7.2
org.ow2.asm : asm-util	jar	7.2
org.ow2.asm : asm-commons	jar	7.2
org.ow2.asm : asm-tree	jar	7.2
org.ow2.asm : asm-analysis	jar	7.2
org.ow2.asm : asm-test	jar	7.2
net.bytebuddy : byte-buddy-agent	jar	1.10.1
net.bytebuddy : byte-buddy	jar	1.10.1
org.javassist : javassist	jar	3.26.0-GA
io.netty : netty-all	jar	4.1.42.Final
org.slf4j : slf4j-api	jar	1.7.28
ch.qos.logback : logback-classic	jar	1.2.3
ch.qos.logback : logback-core	jar	1.2.3
com.google.guava : guava	jar	28.0-jre
org.mvel : mvel2	jar	2.4.4.Final
com.fasterxml.jackson.core : jackson-core	jar	2.10.0
com.fasterxml.jackson.core : jackson-databind	jar	2.10.0
io.vertx : vertx-shell	jar	3.8.5
io.vertx : vertx-core	jar	3.8.5
io.vertx : vertx-web	jar	3.8.5
io.vertx : vertx-web-templ-freemarker	jar	3.8.5
org.apache.commons : commons-lang3	jar	3.9

Project Modules

• apm-agent
• apm-boot
• apm-common
• apm-core

simple-apm

实现一个简版的arthas。

javaagent运行时attach到目标进程，通过netty启动一个rpc接口，接收命令，如果是监控方法耗时、参数、返回值的watch命令， 则创建一个ClassFileTransformer, 通过ASM修改对应的类，在方法前后注入代码，调用Instrumentation.retransform方法完成增强。

Quick Start

release中下载boot.jar和agent.jar

java -Xbootclasspath/a:${机器上tools.jar位置} -jar apm-boot-1.0-SNAPSHOT-jar-with-dependencies.jar apm-agent-1.0-SNAPSHOT-jar-with-dependencies.jar的全路径位置 目标进程id

启动完成后，可以访问http://localhost:5000/shell.html 或者 telnet localhost 6000进行访问

Commands

目前实现的方法有

sc

Search Class

watch

观察方法的参数、返回值、耗时

el

执行表达式

dump

dump一个class到本地class文件

dump xxxx.class

websocket

支持websocket链接，并且提供了一个默认的websocket页面

Versions

Version
1.10.5 Apr 2, 2020
1.10.4 Mar 2, 2020
1.10.3 Mar 2, 2020
1.10.2 Mar 1, 2020
1.10.1 Mar 1, 2020
1.10.0 Feb 29, 2020
1.8 Feb 27, 2020
1.1 Feb 1, 2020
1.0 Feb 27, 2020