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.github/ISSUE_TEMPLATE/bug-report--cn-.md 0 → 100644
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---
name: 报告Bug/使用疑问
about: 提交Arthas Bug/使用疑问，使用这个模板
---
- [ ] 我已经在 [issues](https://github.com/alibaba/arthas/issues) 里搜索，没有重复的issue。
### 环境信息
* `arthas-boot.jar` 或者 `as.sh` 的版本： xxx
* Arthas 版本: xxx
* 操作系统版本: xxx
* 目标进程的JVM版本: xxx
* 执行`arthas-boot`的版本: xxx
### 重现问题的步骤
1. xxx
2. xxx
3. xxx
### 期望的结果
What do you expected from the above steps？
### 实际运行的结果
实际运行结果，最好有详细的日志，异常栈。尽量贴文本。
```
把异常信息贴到这里
```
.github/ISSUE_TEMPLATE/bug-report--en-.md 0 → 100644
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---
name: Bug report (EN)
about: If you would like to report a issue to Arthas, please use this template.
---
- [ ] I have searched the [issues](https://github.com/alibaba/arthas/issues) of this repository and believe that this is not a duplicate.
### Environment
* Arthas version: xxx
* Operating System version: xxx
* Java version of target JVM: xxx
* Java version of JVM used to attach: xxx
### Steps to reproduce this issue
1. xxx
2. xxx
3. xxx
### Expected Result
What do you expected from the above steps？
### Actual Result
What actually happens?
If there is an exception, please attach the exception trace:
```
Just put your stack trace here!
```
.github/workflows/auto-prettier.yaml 0 → 100644
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name: auto prettier
on:
push:
paths:
- 'site/**'
jobs:
prettier:
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v2
with:
ref: ${{ github.head_ref }}
- name: Prettify code
uses: creyD/prettier_action@v4.2
with:
prettier_options: --config ./site/.prettierrc.json --ignore-path ./site/.prettierignore --write ./site
\ No newline at end of file
.github/workflows/build-vmtool.yaml 0 → 100644
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name: build vmtool
on: [push]
jobs:
linux:
runs-on: ubuntu-18.04
steps:
- uses: actions/checkout@v2
- name: Set up JDK 8
uses: actions/setup-java@v2
with:
java-version: '8'
distribution: 'adopt'
- name: Build with Maven
run: ./mvnw package
- uses: actions/upload-artifact@v2
with:
name: lib
path: arthas-vmtool/target/lib*
mac:
runs-on: macos-latest
steps:
- uses: actions/checkout@v2
- name: Set up JDK 8
uses: actions/setup-java@v2
with:
java-version: '8'
distribution: 'adopt'
- name: Build with Maven
run: ./mvnw package
- uses: actions/upload-artifact@v2
with:
name: lib
path: arthas-vmtool/target/lib*
windows:
runs-on: windows-2019
steps:
- uses: actions/checkout@v2
- name: Set up JDK 8
uses: actions/setup-java@v2
with:
java-version: '8'
distribution: 'adopt'
- name: Build with Maven
run: ./mvnw package
- uses: actions/upload-artifact@v2
with:
name: lib
path: arthas-vmtool/target/*.dll
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.github/workflows/codeql-analysis.yml 0 → 100644
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# For most projects, this workflow file will not need changing; you simply need
# to commit it to your repository.
#
# You may wish to alter this file to override the set of languages analyzed,
# or to provide custom queries or build logic.
#
# ******** NOTE ********
# We have attempted to detect the languages in your repository. Please check
# the `language` matrix defined below to confirm you have the correct set of
# supported CodeQL languages.
#
name: "CodeQL"
on:
push:
branches: [ master ]
pull_request:
# The branches below must be a subset of the branches above
branches: [ master ]
schedule:
- cron: '31 4 * * 4'
jobs:
analyze:
name: Analyze
runs-on: ubuntu-latest
strategy:
fail-fast: false
matrix:
language: [ 'java', 'javascript' ]
# CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
# Learn more:
# https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
steps:
- name: Checkout repository
uses: actions/checkout@v2
# Initializes the CodeQL tools for scanning.
- name: Initialize CodeQL
uses: github/codeql-action/init@v2
with:
languages: ${{ matrix.language }}
# If you wish to specify custom queries, you can do so here or in a config file.
# By default, queries listed here will override any specified in a config file.
# Prefix the list here with "+" to use these queries and those in the config file.
# queries: ./path/to/local/query, your-org/your-repo/queries@main
# Autobuild attempts to build any compiled languages (C/C++, C#, or Java).
# If this step fails, then you should remove it and run the build manually (see below)
- name: Autobuild
uses: github/codeql-action/autobuild@v2
# ℹ️ Command-line programs to run using the OS shell.
# 📚 https://git.io/JvXDl
# ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
# and modify them (or add more) to build your code if your project
# uses a compiled language
#- run: |
# make bootstrap
# make release
- name: Perform CodeQL Analysis
uses: github/codeql-action/analyze@v2
.github/workflows/release.yaml 0 → 100644
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name: release
on:
push:
tags:
- "arthas-all-*"
jobs:
build:
runs-on: ubuntu-latest
strategy:
matrix:
java: [8]
steps:
- uses: actions/checkout@v2
- name: Setup java
uses: actions/setup-java@v1
with:
java-version: ${{ matrix.java }}
- name: Build with Maven
run: mvn clean package -P full
- name: Release
uses: softprops/action-gh-release@v1
if: startsWith(github.ref, 'refs/tags/')
with:
files: |
packaging/target/*.zip
packaging/target/*.deb
packaging/target/*.rpm
tunnel-server/target/*fatjar.jar
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
.github/workflows/test.yaml 0 → 100644
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name: JavaCI
on: [push, pull_request]
jobs:
build:
runs-on: ubuntu-latest
strategy:
matrix:
java: [8, 9, 10, 11 ]
steps:
- uses: actions/checkout@v2
- name: Setup java
uses: actions/setup-java@v1
with:
java-version: ${{ matrix.java }}
- name: Build with Maven
run: mvn clean package -P full
build_jdk_ge_12:
runs-on: ubuntu-latest
strategy:
matrix:
java: [12, 13, 14 ]
steps:
- uses: actions/checkout@v2
- name: Set up JDK 1.8
uses: actions/setup-java@v1
with:
java-version: 8
- name: save java8 home
run: |
export JAVA8_HOME=$JAVA_HOME && echo $JAVA8_HOME
echo "export JAVA8_HOME=$JAVA_HOME" > ~/.testenv
- name: Setup java
uses: actions/setup-java@v1
with:
java-version: ${{ matrix.java }}
- name: Build with Maven
run: |
source ~/.testenv
mvn -Dmaven.compiler.fork=true -Dmaven.compiler.executable=$JAVA8_HOME/bin/javac -DJAVA8_HOME=$JAVA8_HOME clean package -P full
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.gitignore 0 → 100644
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.DS_Store
**/.factorypath
/core/core.iml
/agent/agent.iml
/target
**/.settings
**/.classpath
**/.project
/.idea
**/*.iml
/nb-configuration.xml
**/target
core/src/main/resources/com/taobao/arthas/core/res/version
**/*.orig
site/src/site/sphinx/_build
site/src/site/sphinx/en/_build
**/__pycache__
dependency-reduced-pom.xml
pom.xml.versionsBackup
.pmd
**/.flattened-pom.xml
**/.idea/**
**/cmake-build-debug/**
Bugfinder_6_2_EXP.java 0 → 100644
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/*
* Copyright (c) 2020, 2021, ustchcs and/or its affiliates. All rights reserved.
* More info see www.ustchcs.com
*/
package com.ustchcs.rule.bugfinder.testcase;
import java.util.Objects;
import java.util.concurrent.Flow.Publisher;
import java.util.function.Function;
public class Bugfinder_6_2_EXP {
public static <T, R> void combineLatest(Iterable<? extends Publisher<? extends T>> sources,
Function<? super Object[], ? extends R> combiner, int bufferSize) {
Objects.requireNonNull(sources, "sources is null");
Objects.requireNonNull(combiner, "combiner is null");
System.out.println(new FlowableCombineLatest<>(sources, combiner, bufferSize, false));
}
}
final class FlowableCombineLatest<T, R> {
final Publisher<? extends T>[] array;
final Iterable<? extends Publisher<? extends T>> iterable;
final Function<? super Object[], ? extends R> combiner;
final int bufferSize;
final boolean delayErrors;
public FlowableCombineLatest(Publisher<? extends T>[] array, Function<? super Object[], ? extends R> combiner,
int bufferSize, boolean delayErrors) {
this.array = array;
this.iterable = null;
this.combiner = combiner;
this.bufferSize = bufferSize;
this.delayErrors = delayErrors;
}
public FlowableCombineLatest(Iterable<? extends Publisher<? extends T>> iterable,
Function<? super Object[], ? extends R> combiner, int bufferSize, boolean delayErrors) {
this.array = null;
this.iterable = iterable;
this.combiner = combiner;
this.bufferSize = bufferSize;
this.delayErrors = delayErrors;
}
}
Bugfinder_6_2_EXP_2.java 0 → 100644
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/*
* Copyright (c) 2020, 2021, ustchcs and/or its affiliates. All rights reserved.
* More info see www.ustchcs.com
*/
package com.ustchcs.rule.bugfinder.testcase;
import java.util.HashMap;
public class Bugfinder_6_2_EXP_2 {
public void test() {
System.out.println(new HashMap<>());
}
}
CONTRIBUTING.md 0 → 100644
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## Issue
Welcome to use [issue tracker](https://github.com/alibaba/arthas/issues) to give us :bowtie::
* feedbacks - what you would like to have;
* usage tips - what usages you have found splendid;
* experiences - how you use Arthas to do **effective** troubleshooting;
## Documentation
Welcome PR to further improve English [documentation](https://github.com/alibaba/arthas/tree/master/site/src/site/sphinx/en).
## Online Tutorials
Please refer to [README.MD at tutorials/katacoda](tutorials/katacoda/README.md#contribution-guide)
## Developer
* Arthas runtime supports JDK6+
* To build Arthas requires JDK7+, because of the source code import JDK7 classes, such as `java.lang.management.BufferPoolMXBean`.
> It is recommended to use JDK8 to compile, and you will encounter problems when using a higher version. Reference https://github.com/alibaba/arthas/tree/master/.github/workflows
### Local Installation
Recommend to use [`as-package.sh`](as-package.sh) to package, which will auto-install the latest Arthas to local `~/.arthas` and when debugging, Arthas will auto-load the latest version.
* To support jni, cpp compiling environment support is required
* mac needs to install xcode
* windows need to install gcc
F.Y.I
1. when using [`as.sh`](https://github.com/alibaba/arthas/blob/master/bin/as.sh) to start Arthas, it will get the latest version under `~/.arthas/lib`;
2. when [`as-package.sh`](as-package.sh) packaging, it will get the version from `pom.xml` and suffix it with the current timestamp e.g. `3.0.5.20180917161808`.
You can also use `./mvnw clean package -DskipTests` to package and generate a `zip` under `packaging/target/` but remember when `as.sh` starts, it load the version under `~/.arthas/lib`.
### Start Arthas in specified version
When there are several different version, you can use `--use-version` to specify the version of Arthas to start your debug.
```bash
./as.sh --use-version 3.0.5.20180919185025
```
Tip: you can use `--versions` to list all available versions.
```bash
./as.sh --versions
```
### Debug
* [Debug Arthas In IDEA](https://github.com/alibaba/arthas/issues/222)
### Packaging All
* Arthas is using [Sphinx](http://www.sphinx-doc.org/en/master/) to generate the static site
* `sphinx-maven-plugin` configured in [`site/pom.xml`](https://github.com/alibaba/arthas/tree/master/site)
* `sphinx-maven-plugin` executes by downloading`sphinx-binary/`
* when packaging the whole project (Packaging All), you need to execute:
```bash
./mvnw clean package -DskipTests -P full
```
---
## Issue
欢迎在issue里对arthas做反馈，分享使用技巧，排查问题的经历。
* https://github.com/alibaba/arthas/issues
## 改进用户文档
用户文档在`site/src/site/sphinx`目录下，如果希望改进arthas用户文档，欢迎提交PR。
英文文档在`site/src/site/sphinx/en`目录下，欢迎提交翻译PR。
## 改进在线教程
请参考[tutorials/katacoda下的说明](tutorials/katacoda/README_CN.md#贡献指南)
## 开发者相关
* Arthas运行支持JDK6+
* 编译Arthas要求JDK7+，因为使用到了jdk7里的`java.lang.management.BufferPoolMXBean`。
> 建议使用JDK8来编译，使用高版本会遇到问题。参考 https://github.com/alibaba/arthas/tree/master/.github/workflows
### 安装到本地
本地开发时，推荐执行`as-package.sh`来打包，会自动安装最新版本的arthas到`~/.arthas`目录里。debug时会自动使用最新版本。
* 代码里要编译jni，需要cpp编译环境支持
* mac需要安装xcode
* windows需要安装gcc
`as.sh`在启动时，会对`~/.arthas/lib`下面的目录排序，取最新的版本。`as-package.sh`在打包时，会取`pom.xml`里的版本号，再拼接上当前时间，比如： `3.0.5.20180917161808`，这样子排序时取的就是最新的版本。
也可以直接 `./mvnw clean package -DskipTests`打包，生成的zip在 `packaging/target/` 下面。但是注意`as.sh`启动加载的是`~/.arthas/lib`下面的版本。
### 启动指定版本的arthas
本地开发时，可能会产生多个版本，可以用 `--use-version` 参数来指定版本，比如
```bash
./as.sh --use-version 3.0.5.20180919185025
```
可以用`--versions`参数来列出所有版本：
```bash
./as.sh --versions
```
### Debug
* [Debug Arthas In IDEA](https://github.com/alibaba/arthas/issues/222)
### 全量打包
* arthas是用sphinx来生成静态网站
* 在`site/pom.xml`里配置了`sphinx-maven-plugin`
* `sphinx-maven-plugin`通过下载`sphinx-binary/`来执行
* 全量打包时，需要配置下面的参数：
```
./mvnw clean package -DskipTests -P full
```
#### 当 sphinx-maven-plugin 下载出错时，可以用下面的方式
到 https://github.com/trustin/sphinx-binary/releases 下载对应版本的二进制文件，并在本地加上可执行权限。例如：
```
wget https://github.com/hengyunabc/sphinx-binary/releases/download/v0.4.0.1/sphinx.osx-x86_64 -o /tmp/sphinx.osx-x86_64
chmod +x /tmp/sphinx.osx-x86_64
./mvnw clean package -DskipTests -P full -Dsphinx.binUrl=file:/tmp/sphinx.osx-x86_64
```
### Release Steps
发布release版本流程：
* 修改`as.sh`里的版本，最后修改日期， `Bootstrap.java`里的版本，Dockerfile里的版本
* 修改本地的maven settings.xml
* mvn clean deploy -DskipTests -P full -P release
如果在下载 sphinx-binary 出错，参考上面的 全量打包 的说明。
* 到 https://oss.sonatype.org/ 上，“Staging Repositories”然后close掉自己的，再release
* 发布后，可以到这里查看是否同步到仓库里了： https://repo1.maven.org/maven2/com/taobao/arthas/arthas-packaging/
* 发布完maven仓库之后，需要到阿里云的仓库里检查是否同步，有可能有延时
比如下载地址： https://maven.aliyun.com/repository/public/com/taobao/arthas/arthas-packaging/3.x.x/arthas-packaging-3.x.x-bin.zip
版本号信息地址： https://maven.aliyun.com/repository/public/com/taobao/arthas/arthas-packaging/maven-metadata.xml
* 打上tag，push tag到仓库上
* 需要更新 gh-pages 分支下面的 arthas-boot.jar/math-game.jar/as.sh ，下载 doc.zip，解压覆盖掉文档的更新
* 需要更新docker镜像，push新的tag：https://hub.docker.com/r/hengyunabc/arthas/tags?page=1&ordering=last_updated
以 3.1.0 版本为例：
```
docker build . --build-arg ARTHAS_VERSION=3.1.0 -t hengyunabc/arthas:3.1.0
docker tag hengyunabc/arthas:3.1.0 hengyunabc/arthas:latest
docker push hengyunabc/arthas:3.1.0
docker push hengyunabc/arthas:latest
docker build . --build-arg ARTHAS_VERSION=3.1.0 -f Dockerfile-No-Jdk -t hengyunabc/arthas:3.1.0-no-jdk
docker push hengyunabc/arthas:3.1.0-no-jdk
```
* 更新README.md，比如增加了新命令，要加上说明，更新wiki的链接
* 更新release页面的 issue信息，修改信息等
* 更新内部的版本
Dockerfile 0 → 100644
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FROM openjdk:8-jdk-alpine
ARG ARTHAS_VERSION="3.6.4"
ARG MIRROR=false
ENV MAVEN_HOST=https://repo1.maven.org/maven2 \
ALPINE_HOST=dl-cdn.alpinelinux.org \
MIRROR_MAVEN_HOST=https://maven.aliyun.com/repository/public \
MIRROR_ALPINE_HOST=mirrors.aliyun.com
# if use mirror change to aliyun mirror site
RUN if $MIRROR; then MAVEN_HOST=${MIRROR_MAVEN_HOST} ;ALPINE_HOST=${MIRROR_ALPINE_HOST} ; sed -i "s/dl-cdn.alpinelinux.org/${ALPINE_HOST}/g" /etc/apk/repositories ; fi && \
# https://github.com/docker-library/openjdk/issues/76
apk add --no-cache tini && \
# download & install arthas
wget -qO /tmp/arthas.zip "${MAVEN_HOST}/com/taobao/arthas/arthas-packaging/${ARTHAS_VERSION}/arthas-packaging-${ARTHAS_VERSION}-bin.zip" && \
mkdir -p /opt/arthas && \
unzip /tmp/arthas.zip -d /opt/arthas && \
rm /tmp/arthas.zip
# Tini is now available at /sbin/tini
ENTRYPOINT ["/sbin/tini", "--"]
Dockerfile-No-Jdk 0 → 100644
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FROM alpine
ARG ARTHAS_VERSION="3.6.4"
ARG MIRROR=false
ENV MAVEN_HOST=https://repo1.maven.org/maven2 \
MIRROR_MAVEN_HOST=https://maven.aliyun.com/repository/public
# if use mirror change to aliyun mirror site
RUN if $MIRROR; then MAVEN_HOST=${MIRROR_MAVEN_HOST} ; fi && \
# download & install arthas
wget -qO /tmp/arthas.zip "${MAVEN_HOST}/com/taobao/arthas/arthas-packaging/${ARTHAS_VERSION}/arthas-packaging-${ARTHAS_VERSION}-bin.zip" && \
mkdir -p /opt/arthas && \
unzip /tmp/arthas.zip -d /opt/arthas && \
rm /tmp/arthas.zip
LICENSE 0 → 100644
View file @ 7c094a26
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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View file @ 7c094a26
Arthas
Copyright 2018 Alibaba Group
This product includes software developed at
Alibaba Group (https://www.alibabagroup.com/en/global/home).
This product contains code form the greys-anatomy Project:
The greys-anatomy Project
=================
Please visit Github for more information:
* https://github.com/oldmanpushcart/greys-anatomy
-------------------------------------------------------------------------------
This product contains a modified portion of 'Apache Commons Lang':
* LICENSE:
* Apache License 2.0
* HOMEPAGE:
* https://commons.apache.org/proper/commons-lang/
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* LICENSE:
* Apache License 2.0
* HOMEPAGE:
* https://commons.apache.org/proper/commons-net/
README.md 0 → 100644
View file @ 7c094a26
## Arthas
![arthas](site/docs/.vuepress/public/images/arthas.png)
[![Build Status](https://github.com/alibaba/arthas/workflows/JavaCI/badge.svg)](https://github.com/alibaba/arthas/actions)
[![codecov](https://codecov.io/gh/alibaba/arthas/branch/master/graph/badge.svg)](https://codecov.io/gh/alibaba/arthas)
[![maven](https://img.shields.io/maven-central/v/com.taobao.arthas/arthas-packaging.svg)](https://search.maven.org/search?q=g:com.taobao.arthas)
![license](https://img.shields.io/github/license/alibaba/arthas.svg)
[![Average time to resolve an issue](http://isitmaintained.com/badge/resolution/alibaba/arthas.svg)](http://isitmaintained.com/project/alibaba/arthas "Average time to resolve an issue")
[![Percentage of issues still open](http://isitmaintained.com/badge/open/alibaba/arthas.svg)](http://isitmaintained.com/project/alibaba/arthas "Percentage of issues still open")
`Arthas` is a Java Diagnostic tool open sourced by Alibaba.
Arthas allows developers to troubleshoot production issues for Java applications without modifying code or restarting servers.
[中文说明/Chinese Documentation](README_CN.md)
### Background
Often times, the production system network is inaccessible from the local development environment. If issues are encountered in production systems, it is impossible to use IDEs to debug the application remotely. More importantly, debugging in production environment is unacceptable, as it will suspend all the threads, resulting in the suspension of business services.
Developers could always try to reproduce the same issue on the test/staging environment. However, this is tricky as some issues cannot be reproduced easily on a different environment, or even disappear once restarted.
And if you're thinking of adding some logs to your code to help troubleshoot the issue, you will have to go through the following lifecycle; test, staging, and then to production. Time is money! This approach is inefficient! Besides, the issue may not be reproducible once the JVM is restarted, as described above.
Arthas was built to solve these issues. A developer can troubleshoot your production issues on-the-fly. No JVM restart, no additional code changes. Arthas works as an observer, which will never suspend your existing threads.
### Key features
* Check whether a class is loaded, or where the class is being loaded. (Useful for troubleshooting jar file conflicts)
* Decompile a class to ensure the code is running as expected.
* View classloader statistics, e.g. the number of classloaders, the number of classes loaded per classloader, the classloader hierarchy, possible classloader leaks, etc.
* View the method invocation details, e.g. method parameter, return object, thrown exception, and etc.
* Check the stack trace of specified method invocation. This is useful when a developers wants to know the caller of the said method.
* Trace the method invocation to find slow sub-invocations.
* Monitor method invocation statistics, e.g. qps, rt, success rate and etc.
* Monitor system metrics, thread states and cpu usage, gc statistics, and etc.
* Supports command line interactive mode, with auto-complete feature enabled.
* Supports telnet and websocket, which enables both local and remote diagnostics with command line and browsers.
* Supports profiler/Flame Graph
* Support get objects in the heap that are instances of the specified class.
* Supports JDK 6+.
* Supports Linux/Mac/Windows.
### [Online Tutorials(Recommended)](https://arthas.aliyun.com/doc/arthas-tutorials.html?language=en)
* [Usages](tutorials/katacoda/README.md#online-tutorial-usages)
### Quick start
#### Use `arthas-boot`(Recommended)
Download`arthas-boot.jar`，Start with `java` command:
```bash
curl -O https://arthas.aliyun.com/arthas-boot.jar
java -jar arthas-boot.jar
```
Print usage:
```bash
java -jar arthas-boot.jar -h
```
#### Use `as.sh`
You can install Arthas with one single line command on Linux, Unix, and Mac. Copy the following command and paste it into the command line, then press *Enter* to run:
```bash
curl -L https://arthas.aliyun.com/install.sh | sh
```
The command above will download the bootstrap script `as.sh` to the current directory. You can move it any other place you want, or put its location in `$PATH`.
You can enter its interactive interface by executing `as.sh`, or execute `as.sh -h` for more help information.
### Documentation
* [Online Tutorials(Recommended)](https://arthas.aliyun.com/doc/arthas-tutorials.html?language=en)
* [User manual](https://arthas.aliyun.com/doc/en)
* [Installation](https://arthas.aliyun.com/doc/en/install-detail.html)
* [Download](https://arthas.aliyun.com/doc/en/download.html)
* [Quick start](https://arthas.aliyun.com/doc/en/quick-start.html)
* [Advanced usage](https://arthas.aliyun.com/doc/en/advanced-use.html)
* [Commands](https://arthas.aliyun.com/doc/en/commands.html)
* [WebConsole](https://arthas.aliyun.com/doc/en/web-console.html)
* [Docker](https://arthas.aliyun.com/doc/en/docker.html)
* [Arthas Spring Boot Starter](https://arthas.aliyun.com/doc/en/spring-boot-starter.html)
* [User cases](https://github.com/alibaba/arthas/issues?q=label%3Auser-case)
* [FAQ](https://arthas.aliyun.com/doc/en/faq)
* [Compile and debug/How to contribute](https://github.com/alibaba/arthas/blob/master/CONTRIBUTING.md)
* [Release Notes](https://github.com/alibaba/arthas/releases)
### Feature Showcase
#### Dashboard
* https://arthas.aliyun.com/doc/en/dashboard
![dashboard](site/docs/.vuepress/public/images/dashboard.png)
#### Thread
* https://arthas.aliyun.com/doc/en/thread
See what is eating your CPU (ranked by top CPU usage) and what is going on there in one glance:
```bash
$ thread -n 3
"as-command-execute-daemon" Id=29 cpuUsage=75% RUNNABLE
at sun.management.ThreadImpl.dumpThreads0(Native Method)
at sun.management.ThreadImpl.getThreadInfo(ThreadImpl.java:440)
at com.taobao.arthas.core.command.monitor200.ThreadCommand$1.action(ThreadCommand.java:58)
at com.taobao.arthas.core.command.handler.AbstractCommandHandler.execute(AbstractCommandHandler.java:238)
at com.taobao.arthas.core.command.handler.DefaultCommandHandler.handleCommand(DefaultCommandHandler.java:67)
at com.taobao.arthas.core.server.ArthasServer$4.run(ArthasServer.java:276)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Number of locked synchronizers = 1
- java.util.concurrent.ThreadPoolExecutor$Worker@6cd0b6f8
"as-session-expire-daemon" Id=25 cpuUsage=24% TIMED_WAITING
at java.lang.Thread.sleep(Native Method)
at com.taobao.arthas.core.server.DefaultSessionManager$2.run(DefaultSessionManager.java:85)
"Reference Handler" Id=2 cpuUsage=0% WAITING on java.lang.ref.Reference$Lock@69ba0f27
at java.lang.Object.wait(Native Method)
- waiting on java.lang.ref.Reference$Lock@69ba0f27
at java.lang.Object.wait(Object.java:503)
at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:133)
```
#### jad
* https://arthas.aliyun.com/doc/en/jad
Decompile your class with one shot:
```java
$ jad javax.servlet.Servlet
ClassLoader:
+-java.net.URLClassLoader@6108b2d7
+-sun.misc.Launcher$AppClassLoader@18b4aac2
+-sun.misc.Launcher$ExtClassLoader@1ddf84b8
Location:
/Users/xxx/work/test/lib/servlet-api.jar
/*
* Decompiled with CFR 0_122.
*/
package javax.servlet;
import java.io.IOException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
public interface Servlet {
public void init(ServletConfig var1) throws ServletException;
public ServletConfig getServletConfig();
public void service(ServletRequest var1, ServletResponse var2) throws ServletException, IOException;
public String getServletInfo();
public void destroy();
}
```
#### mc
* https://arthas.aliyun.com/doc/en/mc
Memory compiler, compiles `.java` files into `.class` files in memory.
```bash
$ mc /tmp/Test.java
```
#### retransform
* https://arthas.aliyun.com/doc/en/retransform
Load the external `*.class` files to retransform/hotswap the loaded classes in JVM.
```bash
retransform /tmp/Test.class
retransform -c 327a647b /tmp/Test.class /tmp/Test\$Inner.class
```
#### sc
* https://arthas.aliyun.com/doc/en/sc
Search any loaded class with detailed information.
```bash
$ sc -d org.springframework.web.context.support.XmlWebApplicationContext
class-info org.springframework.web.context.support.XmlWebApplicationContext
code-source /Users/xxx/work/test/WEB-INF/lib/spring-web-3.2.11.RELEASE.jar
name org.springframework.web.context.support.XmlWebApplicationContext
isInterface false
isAnnotation false
isEnum false
isAnonymousClass false
isArray false
isLocalClass false
isMemberClass false
isPrimitive false
isSynthetic false
simple-name XmlWebApplicationContext
modifier public
annotation
interfaces
super-class +-org.springframework.web.context.support.AbstractRefreshableWebApplicationContext
+-org.springframework.context.support.AbstractRefreshableConfigApplicationContext
+-org.springframework.context.support.AbstractRefreshableApplicationContext
+-org.springframework.context.support.AbstractApplicationContext
+-org.springframework.core.io.DefaultResourceLoader
+-java.lang.Object
class-loader +-org.apache.catalina.loader.ParallelWebappClassLoader
+-java.net.URLClassLoader@6108b2d7
+-sun.misc.Launcher$AppClassLoader@18b4aac2
+-sun.misc.Launcher$ExtClassLoader@1ddf84b8
classLoaderHash 25131501
```
#### vmtool
* https://arthas.aliyun.com/doc/en/vmtool
Get objects in the heap that are instances of the specified class.
```bash
$ vmtool --action getInstances --className java.lang.String --limit 10
@String[][
@String[com/taobao/arthas/core/shell/session/Session],
@String[com.taobao.arthas.core.shell.session.Session],
@String[com/taobao/arthas/core/shell/session/Session],
@String[com/taobao/arthas/core/shell/session/Session],
@String[com/taobao/arthas/core/shell/session/Session.class],
@String[com/taobao/arthas/core/shell/session/Session.class],
@String[com/taobao/arthas/core/shell/session/Session.class],
@String[com/],
@String[java/util/concurrent/ConcurrentHashMap$ValueIterator],
@String[java/util/concurrent/locks/LockSupport],
]
```
#### stack
* https://arthas.aliyun.com/doc/en/stack
View the call stack of `test.arthas.TestStack#doGet`:
```bash
$ stack test.arthas.TestStack doGet
Press Ctrl+C to abort.
Affect(class-cnt:1 , method-cnt:1) cost in 286 ms.
ts=2018-09-18 10:11:45;thread_name=http-bio-8080-exec-10;id=d9;is_daemon=true;priority=5;TCCL=org.apache.catalina.loader.ParallelWebappClassLoader@25131501
@test.arthas.TestStack.doGet()
at javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
...
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:451)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1121)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
```
#### Trace
* https://arthas.aliyun.com/doc/en/trace
See what is slowing down your method invocation with trace command:
![trace](site/docs/.vuepress/public/images/trace.png)
#### Watch
* https://arthas.aliyun.com/doc/en/watch
Watch the first parameter and thrown exception of `test.arthas.TestWatch#doGet` only if it throws exception.
```bash
$ watch test.arthas.TestWatch doGet {params[0], throwExp} -e
Press Ctrl+C to abort.
Affect(class-cnt:1 , method-cnt:1) cost in 65 ms.
ts=2018-09-18 10:26:28;result=@ArrayList[
@RequestFacade[org.apache.catalina.connector.RequestFacade@79f922b2],
@NullPointerException[java.lang.NullPointerException],
]
```
#### Monitor
* https://arthas.aliyun.com/doc/en/monitor
Monitor a specific method invocation statistics, including the total number of invocations, average response time, success rate, and every 5 seconds:
```bash
$ monitor -c 5 org.apache.dubbo.demo.provider.DemoServiceImpl sayHello
Press Ctrl+C to abort.
Affect(class-cnt:1 , method-cnt:1) cost in 109 ms.
timestamp class method total success fail avg-rt(ms) fail-rate
----------------------------------------------------------------------------------------------------------------------------
2018-09-20 09:45:32 org.apache.dubbo.demo.provider.DemoServiceImpl sayHello 5 5 0 0.67 0.00%
timestamp class method total success fail avg-rt(ms) fail-rate
----------------------------------------------------------------------------------------------------------------------------
2018-09-20 09:45:37 org.apache.dubbo.demo.provider.DemoServiceImpl sayHello 5 5 0 1.00 0.00%
timestamp class method total success fail avg-rt(ms) fail-rate
----------------------------------------------------------------------------------------------------------------------------
2018-09-20 09:45:42 org.apache.dubbo.demo.provider.DemoServiceImpl sayHello 5 5 0 0.43 0.00%
```
#### Time Tunnel(tt)
* https://arthas.aliyun.com/doc/en/tt
Record method invocation data, so that you can check the method invocation parameters, returned value, and thrown exceptions later. It works as if you could come back and replay the past method invocation via time tunnel.
```bash
$ tt -t org.apache.dubbo.demo.provider.DemoServiceImpl sayHello
Press Ctrl+C to abort.
Affect(class-cnt:1 , method-cnt:1) cost in 75 ms.
INDEX TIMESTAMP COST(ms) IS-RET IS-EXP OBJECT CLASS METHOD
-------------------------------------------------------------------------------------------------------------------------------------
1000 2018-09-20 09:54:10 1.971195 true false 0x55965cca DemoServiceImpl sayHello
1001 2018-09-20 09:54:11 0.215685 true false 0x55965cca DemoServiceImpl sayHello
1002 2018-09-20 09:54:12 0.236303 true false 0x55965cca DemoServiceImpl sayHello
1003 2018-09-20 09:54:13 0.159598 true false 0x55965cca DemoServiceImpl sayHello
1004 2018-09-20 09:54:14 0.201982 true false 0x55965cca DemoServiceImpl sayHello
1005 2018-09-20 09:54:15 0.214205 true false 0x55965cca DemoServiceImpl sayHello
1006 2018-09-20 09:54:16 0.241863 true false 0x55965cca DemoServiceImpl sayHello
1007 2018-09-20 09:54:17 0.305747 true false 0x55965cca DemoServiceImpl sayHello
1008 2018-09-20 09:54:18 0.18468 true false 0x55965cca DemoServiceImpl sayHello
```
#### Classloader
* https://arthas.aliyun.com/doc/en/classloader
```bash
$ classloader
name numberOfInstances loadedCountTotal
BootstrapClassLoader 1 3346
com.taobao.arthas.agent.ArthasClassloader 1 1262
java.net.URLClassLoader 2 1033
org.apache.catalina.loader.ParallelWebappClassLoader 1 628
sun.reflect.DelegatingClassLoader 166 166
sun.misc.Launcher$AppClassLoader 1 31
com.alibaba.fastjson.util.ASMClassLoader 6 15
sun.misc.Launcher$ExtClassLoader 1 7
org.jvnet.hk2.internal.DelegatingClassLoader 2 2
sun.reflect.misc.MethodUtil 1 1
```
#### Web Console
* https://arthas.aliyun.com/doc/en/web-console
![web console](site/docs/.vuepress/public/images/web-console-local.png)
#### Profiler/FlameGraph
* https://arthas.aliyun.com/doc/en/profiler
```bash
$ profiler start
Started [cpu] profiling
```
```
$ profiler stop
profiler output file: /tmp/demo/arthas-output/20211207-111550.html
OK
```
View profiler results under arthas-output via browser:
![](site/docs/.vuepress/public/images/arthas-output-svg.jpg)
#### Arthas Spring Boot Starter
* [Arthas Spring Boot Starter](https://arthas.aliyun.com/doc/spring-boot-starter.html)
### Known Users
Arthas has more than 120 registered users, [View All](USERS.md).
Welcome to register the company name in this issue: https://github.com/alibaba/arthas/issues/111 (in order of registration)
![Alibaba](static/alibaba.png)
![Alipay](static/alipay.png)
![Aliyun](static/aliyun.png)
![Taobao](static/taobao.png)
![ICBC](static/icbc.png)
![雪球财经](static/xueqiu.png)
![顺丰科技](static/sf.png)
![贝壳找房](static/ke.png)
![vipkid](static/vipkid.png)
![百度凤巢](static/baidufengchao.png)
![有赞](static/youzan.png)
![科大讯飞](static/iflytek.png)
![智联招聘](static/zhaopin.png)
### Derivative Projects
* [Bistoury: A project that integrates Arthas](https://github.com/qunarcorp/bistoury)
* [A fork of arthas using MVEL](https://github.com/XhinLiang/arthas)
### Credits
#### Contributors
This project exists, thanks to all the people who contributed.
<a href="https://github.com/alibaba/arthas/graphs/contributors"><img src="https://opencollective.com/arthas/contributors.svg?width=890&button=false" /></a>
#### Projects
* [bytekit](https://github.com/alibaba/bytekit) Java Bytecode Kit.
* [greys-anatomy](https://github.com/oldmanpushcart/greys-anatomy): The Arthas code base has derived from Greys, we thank for the excellent work done by Greys.
* [termd](https://github.com/alibaba/termd): Arthas's terminal implementation is based on termd, an open source library for writing terminal applications in Java.
* [crash](https://github.com/crashub/crash): Arthas's text based user interface rendering is based on codes extracted from [here](https://github.com/crashub/crash/tree/1.3.2/shell)
* [cli](https://github.com/alibaba/cli): Arthas's command line interface implementation is based on cli, open sourced by vert.x
* [compiler](https://github.com/skalogs/SkaETL/tree/master/compiler) Arthas's memory compiler.
* [Apache Commons Net](https://commons.apache.org/proper/commons-net/) Arthas's telnet client.
* [async-profiler](https://github.com/jvm-profiling-tools/async-profiler) Arthas's profiler command.
README_CN.md 0 → 100644
View file @ 7c094a26
## Arthas
![arthas](site/docs/.vuepress/public/images/arthas.png)
[![Build Status](https://github.com/alibaba/arthas/workflows/JavaCI/badge.svg)](https://github.com/alibaba/arthas/actions)
[![codecov](https://codecov.io/gh/alibaba/arthas/branch/master/graph/badge.svg)](https://codecov.io/gh/alibaba/arthas)
[![maven](https://img.shields.io/maven-central/v/com.taobao.arthas/arthas-packaging.svg)](https://search.maven.org/search?q=g:com.taobao.arthas)
![license](https://img.shields.io/github/license/alibaba/arthas.svg)
[![Average time to resolve an issue](http://isitmaintained.com/badge/resolution/alibaba/arthas.svg)](http://isitmaintained.com/project/alibaba/arthas "Average time to resolve an issue")
[![Percentage of issues still open](http://isitmaintained.com/badge/open/alibaba/arthas.svg)](http://isitmaintained.com/project/alibaba/arthas "Percentage of issues still open")
English version goes [here](README.md).
`Arthas` 是Alibaba开源的Java诊断工具，深受开发者喜爱。
当你遇到以下类似问题而束手无策时，`Arthas`可以帮助你解决：
0. 这个类从哪个 jar 包加载的？为什么会报各种类相关的 Exception？
0. 我改的代码为什么没有执行到？难道是我没 commit？分支搞错了？
0. 遇到问题无法在线上 debug，难道只能通过加日志再重新发布吗？
0. 线上遇到某个用户的数据处理有问题，但线上同样无法 debug，线下无法重现！
0. 是否有一个全局视角来查看系统的运行状况？
0. 有什么办法可以监控到JVM的实时运行状态？
0. 怎么快速定位应用的热点，生成火焰图？
0. 怎样直接从JVM内查找某个类的实例？
`Arthas`支持JDK 6+，支持Linux/Mac/Windows，采用命令行交互模式，同时提供丰富的 `Tab` 自动补全功能，进一步方便进行问题的定位和诊断。
### [在线教程(推荐)](https://arthas.aliyun.com/doc/arthas-tutorials.html?language=cn)
* [使用方法](tutorials/katacoda/README_CN.md#在线教程使用方法)
### 快速开始
#### 使用`arthas-boot`(推荐)
下载`arthas-boot.jar`，然后用`java -jar`的方式启动：
```bash
curl -O https://arthas.aliyun.com/arthas-boot.jar
java -jar arthas-boot.jar
```
打印帮助信息：
```bash
java -jar arthas-boot.jar -h
```
* 如果下载速度比较慢，可以使用aliyun的镜像：`java -jar arthas-boot.jar --repo-mirror aliyun --use-http`
#### 使用`as.sh`
Arthas 支持在 Linux/Unix/Mac 等平台上一键安装，请复制以下内容，并粘贴到命令行中，敲 `回车` 执行即可：
```bash
curl -L https://arthas.aliyun.com/install.sh | sh
```
上述命令会下载启动脚本文件 `as.sh` 到当前目录，你可以放在任何地方或将其加入到 `$PATH` 中。
直接在shell下面执行`./as.sh`，就会进入交互界面。
也可以执行`./as.sh -h`来获取更多参数信息。
### 文档
* [在线教程(推荐)](https://arthas.aliyun.com/doc/arthas-tutorials.html?language=cn)
* [用户文档](https://arthas.aliyun.com/doc/)
* [安装](https://arthas.aliyun.com/doc/install-detail.html)
* [下载](https://arthas.aliyun.com/doc/download.html)
* [快速入门](https://arthas.aliyun.com/doc/quick-start.html)
* [进阶使用](https://arthas.aliyun.com/doc/advanced-use.html)
* [命令列表](https://arthas.aliyun.com/doc/commands.html)
* [WebConsole](https://arthas.aliyun.com/doc/web-console.html)
* [Docker](https://arthas.aliyun.com/doc/docker.html)
* [Arthas Spring Boot Starter](https://arthas.aliyun.com/doc/spring-boot-starter.html)
* [用户案例](https://github.com/alibaba/arthas/issues?q=label%3Auser-case)
* [FAQ/常见问题](https://arthas.aliyun.com/doc/faq)
* [编译调试/参与贡献](https://github.com/alibaba/arthas/blob/master/CONTRIBUTING.md)
* [Release Notes](https://github.com/alibaba/arthas/releases)
* [QQ群/钉钉群](https://arthas.aliyun.com/doc/contact-us.html)
### 案例展示
#### Dashboard
* https://arthas.aliyun.com/doc/dashboard
![dashboard](site/docs/.vuepress/public/images/dashboard.png)
#### Thread
* https://arthas.aliyun.com/doc/thread
一目了然的了解系统的状态，哪些线程比较占cpu？他们到底在做什么？
```
$ thread -n 3
"as-command-execute-daemon" Id=29 cpuUsage=75% RUNNABLE
at sun.management.ThreadImpl.dumpThreads0(Native Method)
at sun.management.ThreadImpl.getThreadInfo(ThreadImpl.java:440)
at com.taobao.arthas.core.command.monitor200.ThreadCommand$1.action(ThreadCommand.java:58)
at com.taobao.arthas.core.command.handler.AbstractCommandHandler.execute(AbstractCommandHandler.java:238)
at com.taobao.arthas.core.command.handler.DefaultCommandHandler.handleCommand(DefaultCommandHandler.java:67)
at com.taobao.arthas.core.server.ArthasServer$4.run(ArthasServer.java:276)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Number of locked synchronizers = 1
- java.util.concurrent.ThreadPoolExecutor$Worker@6cd0b6f8
"as-session-expire-daemon" Id=25 cpuUsage=24% TIMED_WAITING
at java.lang.Thread.sleep(Native Method)
at com.taobao.arthas.core.server.DefaultSessionManager$2.run(DefaultSessionManager.java:85)
"Reference Handler" Id=2 cpuUsage=0% WAITING on java.lang.ref.Reference$Lock@69ba0f27
at java.lang.Object.wait(Native Method)
- waiting on java.lang.ref.Reference$Lock@69ba0f27
at java.lang.Object.wait(Object.java:503)
at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:133)
```
#### jad
* https://arthas.aliyun.com/doc/jad
对类进行反编译:
```java
$ jad javax.servlet.Servlet
ClassLoader:
+-java.net.URLClassLoader@6108b2d7
+-sun.misc.Launcher$AppClassLoader@18b4aac2
+-sun.misc.Launcher$ExtClassLoader@1ddf84b8
Location:
/Users/xxx/work/test/lib/servlet-api.jar
/*
* Decompiled with CFR 0_122.
*/
package javax.servlet;
import java.io.IOException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
public interface Servlet {
public void init(ServletConfig var1) throws ServletException;
public ServletConfig getServletConfig();
public void service(ServletRequest var1, ServletResponse var2) throws ServletException, IOException;
public String getServletInfo();
public void destroy();
}
```
#### mc
* https://arthas.aliyun.com/doc/mc
Memory Compiler/内存编译器，编译`.java`文件生成`.class`。
```bash
mc /tmp/Test.java
```
#### retransform
* https://arthas.aliyun.com/doc/retransform
加载外部的`.class`文件，retransform 热更新jvm已加载的类。
```bash
retransform /tmp/Test.class
retransform -c 327a647b /tmp/Test.class /tmp/Test\$Inner.class
```
#### sc
* https://arthas.aliyun.com/doc/sc
查找JVM中已经加载的类
```bash
$ sc -d org.springframework.web.context.support.XmlWebApplicationContext
class-info org.springframework.web.context.support.XmlWebApplicationContext
code-source /Users/xxx/work/test/WEB-INF/lib/spring-web-3.2.11.RELEASE.jar
name org.springframework.web.context.support.XmlWebApplicationContext
isInterface false
isAnnotation false
isEnum false
isAnonymousClass false
isArray false
isLocalClass false
isMemberClass false
isPrimitive false
isSynthetic false
simple-name XmlWebApplicationContext
modifier public
annotation
interfaces
super-class +-org.springframework.web.context.support.AbstractRefreshableWebApplicationContext
+-org.springframework.context.support.AbstractRefreshableConfigApplicationContext
+-org.springframework.context.support.AbstractRefreshableApplicationContext
+-org.springframework.context.support.AbstractApplicationContext
+-org.springframework.core.io.DefaultResourceLoader
+-java.lang.Object
class-loader +-org.apache.catalina.loader.ParallelWebappClassLoader
+-java.net.URLClassLoader@6108b2d7
+-sun.misc.Launcher$AppClassLoader@18b4aac2
+-sun.misc.Launcher$ExtClassLoader@1ddf84b8
classLoaderHash 25131501
```
#### vmtool
* https://arthas.aliyun.com/doc/vmtool
从JVM heap中获取指定类的实例。
```bash
$ vmtool --action getInstances --className java.lang.String --limit 10
@String[][
@String[com/taobao/arthas/core/shell/session/Session],
@String[com.taobao.arthas.core.shell.session.Session],
@String[com/taobao/arthas/core/shell/session/Session],
@String[com/taobao/arthas/core/shell/session/Session],
@String[com/taobao/arthas/core/shell/session/Session.class],
@String[com/taobao/arthas/core/shell/session/Session.class],
@String[com/taobao/arthas/core/shell/session/Session.class],
@String[com/],
@String[java/util/concurrent/ConcurrentHashMap$ValueIterator],
@String[java/util/concurrent/locks/LockSupport],
]
```
#### stack
* https://arthas.aliyun.com/doc/stack
查看方法 `test.arthas.TestStack#doGet` 的调用堆栈：
```bash
$ stack test.arthas.TestStack doGet
Press Ctrl+C to abort.
Affect(class-cnt:1 , method-cnt:1) cost in 286 ms.
ts=2018-09-18 10:11:45;thread_name=http-bio-8080-exec-10;id=d9;is_daemon=true;priority=5;TCCL=org.apache.catalina.loader.ParallelWebappClassLoader@25131501
@test.arthas.TestStack.doGet()
at javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
...
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:451)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1121)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
```
#### Trace
* https://arthas.aliyun.com/doc/trace
观察方法执行的时候哪个子调用比较慢:
![trace](site/docs/.vuepress/public/images/trace.png)
#### Watch
* https://arthas.aliyun.com/doc/watch
观察方法 `test.arthas.TestWatch#doGet` 执行的入参，仅当方法抛出异常时才输出。
```bash
$ watch test.arthas.TestWatch doGet {params[0], throwExp} -e
Press Ctrl+C to abort.
Affect(class-cnt:1 , method-cnt:1) cost in 65 ms.
ts=2018-09-18 10:26:28;result=@ArrayList[
@RequestFacade[org.apache.catalina.connector.RequestFacade@79f922b2],
@NullPointerException[java.lang.NullPointerException],
]
```
#### Monitor
* https://arthas.aliyun.com/doc/monitor
监控某个特殊方法的调用统计数据，包括总调用次数，平均rt，成功率等信息，每隔5秒输出一次。
```bash
$ monitor -c 5 org.apache.dubbo.demo.provider.DemoServiceImpl sayHello
Press Ctrl+C to abort.
Affect(class-cnt:1 , method-cnt:1) cost in 109 ms.
timestamp class method total success fail avg-rt(ms) fail-rate
----------------------------------------------------------------------------------------------------------------------------
2018-09-20 09:45:32 org.apache.dubbo.demo.provider.DemoServiceImpl sayHello 5 5 0 0.67 0.00%
timestamp class method total success fail avg-rt(ms) fail-rate
----------------------------------------------------------------------------------------------------------------------------
2018-09-20 09:45:37 org.apache.dubbo.demo.provider.DemoServiceImpl sayHello 5 5 0 1.00 0.00%
timestamp class method total success fail avg-rt(ms) fail-rate
----------------------------------------------------------------------------------------------------------------------------
2018-09-20 09:45:42 org.apache.dubbo.demo.provider.DemoServiceImpl sayHello 5 5 0 0.43 0.00%
```
#### Time Tunnel(tt)
* https://arthas.aliyun.com/doc/tt
记录方法调用信息，支持事后查看方法调用的参数，返回值，抛出的异常等信息，仿佛穿越时空隧道回到调用现场一般。
```bash
$ tt -t org.apache.dubbo.demo.provider.DemoServiceImpl sayHello
Press Ctrl+C to abort.
Affect(class-cnt:1 , method-cnt:1) cost in 75 ms.
INDEX TIMESTAMP COST(ms) IS-RET IS-EXP OBJECT CLASS METHOD
-------------------------------------------------------------------------------------------------------------------------------------
1000 2018-09-20 09:54:10 1.971195 true false 0x55965cca DemoServiceImpl sayHello
1001 2018-09-20 09:54:11 0.215685 true false 0x55965cca DemoServiceImpl sayHello
1002 2018-09-20 09:54:12 0.236303 true false 0x55965cca DemoServiceImpl sayHello
1003 2018-09-20 09:54:13 0.159598 true false 0x55965cca DemoServiceImpl sayHello
1004 2018-09-20 09:54:14 0.201982 true false 0x55965cca DemoServiceImpl sayHello
1005 2018-09-20 09:54:15 0.214205 true false 0x55965cca DemoServiceImpl sayHello
1006 2018-09-20 09:54:16 0.241863 true false 0x55965cca DemoServiceImpl sayHello
1007 2018-09-20 09:54:17 0.305747 true false 0x55965cca DemoServiceImpl sayHello
1008 2018-09-20 09:54:18 0.18468 true false 0x55965cca DemoServiceImpl sayHello
```
#### Classloader
* https://arthas.aliyun.com/doc/classloader
了解当前系统中有多少类加载器，以及每个加载器加载的类数量，帮助您判断是否有类加载器泄露。
```bash
$ classloader
name numberOfInstances loadedCountTotal
BootstrapClassLoader 1 3346
com.taobao.arthas.agent.ArthasClassloader 1 1262
java.net.URLClassLoader 2 1033
org.apache.catalina.loader.ParallelWebappClassLoader 1 628
sun.reflect.DelegatingClassLoader 166 166
sun.misc.Launcher$AppClassLoader 1 31
com.alibaba.fastjson.util.ASMClassLoader 6 15
sun.misc.Launcher$ExtClassLoader 1 7
org.jvnet.hk2.internal.DelegatingClassLoader 2 2
sun.reflect.misc.MethodUtil 1 1
```
#### Web Console
* https://arthas.aliyun.com/doc/web-console
![web console](site/docs/.vuepress/public/images/web-console-local.png)
#### Profiler/FlameGraph/火焰图
* https://arthas.aliyun.com/doc/profiler
```bash
$ profiler start
Started [cpu] profiling
```
```
$ profiler stop
profiler output file: /tmp/demo/arthas-output/20211207-111550.html
OK
```
通过浏览器查看profiler结果：
![](site/docs/.vuepress/public/images/arthas-output-svg.jpg)
#### Arthas Spring Boot Starter
* [Arthas Spring Boot Starter](https://arthas.aliyun.com/doc/spring-boot-starter.html)
### Known Users
Arthas有超过120家登记用户，[查看全部](USERS.md)。
如果您在使用Arthas，请让我们知道，您的使用对我们非常重要：https://github.com/alibaba/arthas/issues/111 （按登记顺序排列）
![Alibaba](static/alibaba.png)
![Alipay](static/alipay.png)
![Aliyun](static/aliyun.png)
![Taobao](static/taobao.png)
![ICBC](static/icbc.png)
![雪球财经](static/xueqiu.png)
![顺丰科技](static/sf.png)
![贝壳找房](static/ke.png)
![vipkid](static/vipkid.png)
![百度凤巢](static/baidufengchao.png)
![有赞](static/youzan.png)
![科大讯飞](static/iflytek.png)
![智联招聘](static/zhaopin.png)
### 衍生项目
* [Bistoury: 一个集成了Arthas的项目](https://github.com/qunarcorp/bistoury)
* [一个使用MVEL脚本的fork](https://github.com/XhinLiang/arthas)
### Credit
#### Contributors
感谢所有Contributors!
<a href="https://github.com/alibaba/arthas/graphs/contributors"><img src="https://opencollective.com/arthas/contributors.svg?width=890&button=false" /></a>
#### Projects
* [bytekit](https://github.com/alibaba/bytekit) Java Bytecode Kit，Arthas里字节码增强的内核。
* [greys-anatomy](https://github.com/oldmanpushcart/greys-anatomy): Arthas代码基于Greys二次开发而来，非常感谢Greys之前所有的工作，以及Greys原作者对Arthas提出的意见和建议！
* [termd](https://github.com/alibaba/termd): Arthas的命令行实现基于termd开发，是一款优秀的命令行程序开发框架，感谢termd提供了优秀的框架。
* [crash](https://github.com/crashub/crash): Arthas的文本渲染功能基于crash中的文本渲染功能开发，可以从[这里](https://github.com/crashub/crash/tree/1.3.2/shell)看到源码，感谢crash在这方面所做的优秀工作。
* [cli](https://github.com/alibaba/cli): Arthas的命令行界面基于vert.x提供的cli库进行开发，感谢vert.x在这方面做的优秀工作。
* [compiler](https://github.com/skalogs/SkaETL/tree/master/compiler) Arthas里的内存编译器代码来源
* [Apache Commons Net](https://commons.apache.org/proper/commons-net/) Arthas里的Telnet Client代码来源
* [async-profiler](https://github.com/jvm-profiling-tools/async-profiler) Arthas's profiler 命令.
### 仓库镜像
* [码云Arthas](https://gitee.com/arthas/arthas)
README_EN.md 0 → 100644
View file @ 7c094a26
English README has been moved [here](README.md).
TODO.md 0 → 100644
View file @ 7c094a26
* 代码还是很乱，需要继续重构
* 依赖需要清理，几个问题：
* 所有 apache 的 common 库应当不需要
* json 库有好几份
* `jopt-simple` 看下能不能用 `cli` 取代
* `cli`, `termd` 的 artifactId, version 需要想下。是不是应该直接拿进来。他们的依赖也需要仔细看一下
* termd 依赖 netty，感觉有点重，而且第一次 attach 比较慢，不确定是 netty 的问题还是 attach 的问题
* 目前 web console 依赖 termd 中自带的 term.js 和 css，需要美化，需要想下如何集成到研发门户上
* 因为现在没有 Java 客户端了，所以 batch mode 也就没有了
* `com.taobao.arthas.core.shell.session.Session` 的能力需要和以前的 session 的实现对标。其中：
* 真的需要 textmode 吗？我觉得这个应该是 option 的事情
* 真的需要 encoding 吗？我觉得仍然应该在 option 中定义，就算是真的需要，因为我觉得就应该是 UTF-8
* duration 是应当展示的，session 的列表也许也应当展示
* 需要仔细看下 session 过期是否符合预期
* 多人协作的时候 session 原来是在多人之间共享的吗？
* 所有的命令现在实现的是 AnnotatedCommand，需要继续增强的是:
* Help 中的格式化输出被删除。需要为 `@Description` 定义一套统一的格式
* 命令的输入以及输出的日志 (record logger) 被删除，需要重新实现，因为现在是用 `CommandProcess` 来输出，所以，需要在 `CommandProcess` 的实现里打日志
* `com.taobao.arthas.core.GlobalOptions` 看上去好奇怪，感觉是 OptionCommand 应当做的事情
* `com.taobao.arthas.core.config.Configure` 需要清理，尤其是和 http 相关的
* 需要合并 develop 分支上后续的修复
* 代码中的 TODO/FIXME
\ No newline at end of file
USERS.md 0 → 100644
View file @ 7c094a26
### Known Users
Welcome to register the company name in this issue: https://github.com/alibaba/arthas/issues/111 (in order of registration)
![Alibaba](static/alibaba.png)
![Alipay](static/alipay.png)
![Aliyun](static/aliyun.png)
![Taobao](static/taobao.png)
![Tmall](static/tmall.png)
![微医](static/weiyi.png)
![卓越教育](static/zhuoyuejiaoyu.png)
![狐狸金服](static/hulijingfu.png)
![三体云](static/santiyun.png)
![证大文化](static/zhengdawenhua.png)
![连连支付](static/lianlianpay.png)
![Acmedcare+](static/acmedcare.png)
![好慷](static/homeking365_log.png)
![来电科技](static/laidian.png)
![四格互联](static/sigehulian.png)
![ICBC](static/icbc.png)
![陆鹰](static/luying.png)
![玩友时代](static/wangyoushidai.png)
![她社区](static/tashequ.png)
![龙腾出行](static/longtengchuxing.png)
![foscam](static/foscam.png)
![二维火](static/2dfire.png)
![lanxum](static/lanxum_com.png)
![纳里健康](static/ngarihealth.png)
![掌门1对1](static/zhangmen.png)
![offcn](static/offcn.png)
![sia](static/sia.png)
![振安资产](static/zhenganzichang.png)
![菠萝](static/bolo.png)
![中通快递](static/zto.png)
![光点科技](static/guangdian.png)
![广州工程技术职业学院](static/gzvtc.jpg)
![mstar](static/mstar.png)
![xwbank](static/xwbank.png)
![imexue](static/imexue.png)
![keking](static/keking.png)
![secoo](static/secoo.jpg)
![viax](static/viax.png)
![yanedu](static/yanedu.png)
![duia](static/duia.png)
![哈啰出行](static/hellobike.png)
![hollycrm](static/hollycrm.png)
![citycloud](static/citycloud.jpg)
![yidianzixun](static/yidianzixun.png)
![神州租车](static/zuche.png)
![天眼查](static/tianyancha.png)
![商脉云](static/anjianyun.png)
![三新文化](static/sanxinbook.png)
![雪球财经](static/xueqiu.png)
![百安居](static/bthome.png)
![安心保险](static/95303.png)
![杭州源诚科技](static/hzyc.png)
![91moxie](static/91moxie.png)
![智慧开源](static/wisdom.png)
![富佳科技](static/fujias.png)
![鼎尖软件](static/dingjiansoft.png)
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![九鼎瑞信](static/evercreative.jpg)
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