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## Issue
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Welcome to use [issue tracker](https://github.com/alibaba/arthas/issues) to give us :bowtie::
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* feedbacks - what you would like to have;
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* usage tips - what usages you have found splendid;
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* experiences - how you use Arthas to do **effective** troubleshooting;
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## Documentation
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Welcome PR to further improve English [documentation](https://github.com/alibaba/arthas/tree/master/site/src/site/sphinx/en).
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## Developer
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* Arthas runtime supports JDK6+
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* To build Arthas requires JDK7+, because of the source code import JDK7 classes, such as `java.lang.management.BufferPoolMXBean`.
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### Local Installation
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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.
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F.Y.I
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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`;
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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`.
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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`.
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### Start Arthas in specified version
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When there are several different version, you can use `--use-version` to specify the version of Arthas to start your debug.
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```bash
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./as.sh --use-version 3.0.5.20180919185025
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```
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Tip: you can use `--versions` to list all available versions.
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```bash
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./as.sh --versions
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```
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### Debug
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* [Debug Arthas In IDEA](https://github.com/alibaba/arthas/issues/222)
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### Packaging All
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* Arthas is using [Sphinx](http://www.sphinx-doc.org/en/master/) to generate the static site
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* `sphinx-maven-plugin` configured in [`site/pom.xml`](https://github.com/alibaba/arthas/tree/master/site)
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* `sphinx-maven-plugin` executes by downloading`sphinx-binary/`
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* a [bug](https://github.com/rtfd/recommonmark/issues/93) in Sphinx plugin `recommonmark`; we fix it by packaging another [version](https://github.com/hengyunabc/sphinx-binary/releases/tag/v0.4.0.1)
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* when packaging the whole project (Packaging All), you need to (Only Unix/Linux/Mac supported):
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```bash
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./mvnw clean package -DskipTests -P full -Dsphinx.binUrl=https://github.com/hengyunabc/sphinx-binary/releases/download/v0.4.0.1/sphinx.osx-x86_64
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```
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---
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## issue
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欢迎在issue里对arthas做反馈，分享使用技巧，排查问题的经历。
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* https://github.com/alibaba/arthas/issues
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## 改进用户文档
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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。
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英文文档在`site/src/site/sphinx/en`目录下，欢迎提交翻译PR。
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## 开发者相关
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* Arthas运行支持JDK6+
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* 编译Arthas要求JDK7+，因为使用到了jdk7里的`java.lang.management.BufferPoolMXBean`。
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### 安装到本地
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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。
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`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。
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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。
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### 启动指定版本的arthas
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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
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```bash
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./as.sh --use-version 3.0.5.20180919185025
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```
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可以用`--versions`参数来列出所有版本：
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```bash
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./as.sh --versions
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```
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### Debug
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* [Debug Arthas In IDEA](https://github.com/alibaba/arthas/issues/222)
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### 全量打包
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* arthas是用sphinx来生成静态网站
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* 在`site/pom.xml`里配置了`sphinx-maven-plugin`
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* `sphinx-maven-plugin`通过下载`sphinx-binary/`来执行
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* sphinx配置的`recommonmark`插件有bug：https://github.com/rtfd/recommonmark/issues/93 ，因此另外打包了一个修复版本： https://github.com/hengyunabc/sphinx-binary/releases/tag/v0.4.0.1
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* 全量打包时，需要配置下面的参数（目前只支持mac/linux）：
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```
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./mvnw clean package -DskipTests -P full -Dsphinx.binUrl=https://github.com/hengyunabc/sphinx-binary/releases/download/v0.4.0.1/sphinx.osx-x86_64
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```
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### Release Steps
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发布release版本流程：
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* 修改`as.sh`里的版本
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* 修改本地的maven settings.xml
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* mvn release:prepare -Darguments="-DskipTests"
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* mvn release:perform -Darguments="-DskipTests -P full -Dsphinx.binUrl=https://github.com/hengyunabc/sphinx-binary/releases/download/v0.4.0.1/sphinx.osx-x86_64"
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如果在下载 https://github.com/hengyunabc/sphinx-binary/releases/download/v0.4.0.1/sphinx.osx-x86_64 时有问题，可以先下载到本地，然后用 `file:/tmp/sphinx.osx-x86_64` 的方式指定
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* 到 https://oss.sonatype.org/ 上，“Staging Repositories”然后close掉自己的，再release
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* 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
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* 需要更新 gh-pages 分支下面的 arthas-boot.jar/arthas-demo.jar/as.sh
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* 需要更新docker镜像，push新的tag
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以 3.1.0 版本为例：
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```
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docker build . --build-arg ARTHAS_VERSION=3.1.0 -t hengyunabc/arthas:3.1.0
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docker tag hengyunabc/arthas:3.1.0 hengyunabc/arthas:latest
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docker push hengyunabc/arthas:3.1.0
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docker push hengyunabc/arthas:latest
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docker build . --build-arg ARTHAS_VERSION=3.1.0 -f Dockerfile-No-Jdk -t hengyunabc/arthas:3.1.0-no-jdk
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docker push hengyunabc/arthas:3.1.0-no-jdk
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```
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