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# 简介
# 简介
## 动态可观测线程池框架
## 线程池痛点
Hippo-4J 通过对 JDK 线程池增强,以及扩展三方框架底层线程池等功能,为业务系统提高线上运行保障能力。
线程池是一种基于池化思想管理线程的工具,使用线程池可以减少创建销毁线程的开销,避免线程过多导致系统资源耗尽。在高并发以及大批量的任务处理场景,线程池的使用是必不可少的。
- 🏗 全局管控 - 管理应用线程池实例。
- ⚡️ 动态变更 - 应用运行时动态变更线程池参数,包括不限于:核心、最大线程数、阻塞队列容量、拒绝策略等。
如果有在项目中实际使用线程池,相信你可能会遇到以下痛点:
- 🐳 通知报警 - 内置四种报警通知策略,线程池活跃度、容量水位、拒绝策略以及任务执行时间超长 。
- 线程池随便定义,线程资源过多,造成服务器高负载 。
- 👀 运行监控 - 实时查看线程池运行时数据,最近半小时线程池运行数据图表展示。
- 线程池参数不易评估,随着业务的并发提升,业务面临出现故障的风险。
- 线程池任务执行时间超过平均执行周期,开发人员无法感知。
- 线程池任务堆积,触发拒绝策略,影响既有业务正常运行。
- 当业务出现超时、熔断等问题时,因为没有监控,无法确定是不是线程池引起。
- 原生线程池不支持运行时变量的传递,比如 MDC 上下文遇到线程池就 GG。
- 无法执行优雅关闭,当项目关闭时,大量正在运行的线程池任务被丢弃。
- 线程池运行中,任务执行停止,怀疑发生死锁或执行耗时操作,但是无从下手。
- 👐 功能扩展 - 支持线程池任务传递上下文;项目关闭时,支持等待线程池在指定时间内完成任务。
## 什么是 Hippo-4J
- 👯♀️ 多种模式 - 内置两种使用模式:[依赖配置中心](https://hippo4j.cn/docs/user_docs/getting-started/config/hippo4j-config-start) 和 [无中间件依赖 ](https://hippo4j.cn/docs/user_docs/getting-started/server/hippo4j-server-start )。
Hippo-4J 通过对 JDK 线程池增强,以及扩展三方框架底层线程池等功能,为业务系统提高线上运行保障能力 。
- 🛠 容器管理 - Tomcat、Jetty、Undertow 容器线程池运行时查看和线程数变更。
提供以下功能支持:
- 🌈 中间件适配 - Apache RocketMQ、Dubbo、RabbitMQ、Hystrix 消费线程池运行时数据查看和线程数变更 。
- 全局管控 - 管理应用线程池实例 。
> 看完有收获, GitHub 右上角帮忙点个小星星,开源作者为爱发电也不容易 🤣
- 动态变更 - 应用运行时动态变更线程池参数,包括不限于:核心、最大线程数、阻塞队列容量、拒绝策略等。
- 通知报警 - 内置四种报警通知策略,线程池活跃度、容量水位、拒绝策略以及任务执行时间超长。
- 运行监控 - 实时查看线程池运行时数据,最近半小时线程池运行数据图表展示。
- 功能扩展 - 支持线程池任务传递上下文;项目关闭时,支持等待线程池在指定时间内完成任务。
- 多种模式 - 内置两种使用模式:[依赖配置中心](https://hippo4j.cn/docs/user_docs/getting_started/config/hippo4j-config-start) 和 [无中间件依赖 ](https://hippo4j.cn/docs/user_docs/getting_started/server/hippo4j-server-start )。
- 容器管理 - Tomcat、Jetty、Undertow 容器线程池运行时查看和线程数变更。
- 框架适配 - Dubbo、Hystrix、RabbitMQ、RocketMQ 等消费线程池运行时数据查看和线程数变更。
## 快速开始
## 快速开始
对于本地演示目的,请参阅 [Quick start ](docs/user_docs/getting_started/server/hippo4j-server-start )
对于本地演示目的,请参阅 [Quick start ](https://hippo4j.cn/docs/user_docs/user_guide/quick-start )
演示环境:
- [http://console.hippo4j.cn/index.html ](http://console.hippo4j.cn/index.html )
- 用户/密码: hippo4j/hippo4j
## 联系我
![image ](https://user-images.githubusercontent.com/77398366/169202380-6c068acd-700a-41fa-8823-e01c92bb5e88.png )
## 开发者
感谢所有为 Hippo-4J 做出贡献的开发者!
演示环境: [http://console.hippo4j.cn/index.html ](http://console.hippo4j.cn/index.html )
< a href = "https://github.com/opengoofy/hippo4j/graphs/contributors" > < img src = "https://opencollective.com/hippo4j/contributors.svg?width=890&button=false" / > < / a >
## 接入登记
## 我们的荣誉
更多接入的公司,欢迎在 [登记地址 ](https://github.com/opengoofy/hippo4j/issues/13 ) 登记,登记仅仅为了产品推广。
Hippo-4J 获得了一些宝贵的荣誉,这属于每一位对 Hippo-4J 做出过贡献的成员,谢谢各位的付出。
## 联系我
![](https://user-images.githubusercontent.com/77398366/170607238-7308c9be-1d63-46a6-852c-eef2e4cf7405.JPG)
## Stars 趋势
![](https://user-images.githubusercontent.com/77398366/185774220-c11951f9-e130-4d60-8204-afb5c51d4401.png)
![](https://starchart.cc/longtai-cn/hippo4j.svg)
扫码添加微信, 备注: hippo4j, 邀您加入群聊。若图片加载不出来, 访问 [官网站点 ](https://hippo4j.cn/docs/user_docs/other/group )。
## 友情链接
## 友情链接
- [[ LiteFlow ]](https://liteflow.yomahub.com/):轻量,快速,稳定可编排的组件式规则引擎。
- [[ Sa-Token ]](https://github.com/dromara/sa-token):一个轻量级 java 权限认证框架,让鉴权变得简单、优雅!
- [[ Sa-Token ]](https://github.com/dromara/sa-token):一个轻量级 java 权限认证框架,让鉴权变得简单、优雅!
- [[ HertzBeat ]](https://github.com/dromara/hertzbeat):易用友好的云监控系统, 无需 Agent, 强大自定义监控能力。
- [[ HertzBeat ]](https://github.com/dromara/hertzbeat):易用友好的云监控系统, 无需 Agent, 强大自定义监控能力。
- [[ JavaGuide ]](https://github.com/Snailclimb/JavaGuide):一份涵盖大部分 Java 程序员所需要掌握的核心知识。
- [[ JavaGuide ]](https://github.com/Snailclimb/JavaGuide):一份涵盖大部分 Java 程序员所需要掌握的核心知识。
- [[ toBeBetterJavaer ]](https://github.com/itwanger/toBeBetterJavaer):一份通俗易懂、风趣幽默的 Java 学习指南。
- [[ toBeBetterJavaer ]](https://github.com/itwanger/toBeBetterJavaer): 一份通俗易懂、风趣幽默的Java学习指南, 内容涵盖Java基础、Java并发编程等核心知识点。
## 贡献者
## 鸣谢
感谢所有为项目作出贡献的开发者。如果有意贡献,参考 [good first issue ](https://github.com/opengoofy/hippo4j/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22 )。
Hippo4J 项目基于或参考以下项目:[Nacos](https://github.com/alibaba/nacos)、[Eureka](https://github.com/Netflix/Eureka)。
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感谢 JetBrains 提供的免费开源 License
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< a href = "https://github.com/dousp" >
< img src = "https://avatars.githubusercontent.com/u/5936499?v=4" width = "50;" alt = "dousp" / >
< br / >
< sub > < b > Douspeng< / b > < / sub >
< / a >
< / td > < / tr >
< tr >
< td align = "center" >
< a href = "https://github.com/hl1248" >
< img src = "https://avatars.githubusercontent.com/u/70790953?v=4" width = "50;" alt = "hl1248" / >
< br / >
< sub > < b > Lucas< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/gentlelynn" >
< img src = "https://avatars.githubusercontent.com/u/19168453?v=4" width = "50;" alt = "gentlelynn" / >
< br / >
< sub > < b > Lynn< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/alexhaoxuan" >
< img src = "https://avatars.githubusercontent.com/u/46749051?v=4" width = "50;" alt = "alexhaoxuan" / >
< br / >
< sub > < b > Alexli< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/qizhongju" >
< img src = "https://avatars.githubusercontent.com/u/19883548?v=4" width = "50;" alt = "qizhongju" / >
< br / >
< sub > < b > Bug搬运工< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/san4j" >
< img src = "https://avatars.githubusercontent.com/u/40364355?v=4" width = "50;" alt = "san4j" / >
< br / >
< sub > < b > San4j< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/zhenyed" >
< img src = "https://avatars.githubusercontent.com/u/26167590?v=4" width = "50;" alt = "zhenyed" / >
< br / >
< sub > < b > Zhenye< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/dongming0920" >
< img src = "https://avatars.githubusercontent.com/u/57832778?v=4" width = "50;" alt = "dongming0920" / >
< br / >
< sub > < b > Null< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/f497196689" >
< img src = "https://avatars.githubusercontent.com/u/15325854?v=4" width = "50;" alt = "f497196689" / >
< br / >
< sub > < b > Fengjing< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/Snailclimb" >
< img src = "https://avatars.githubusercontent.com/u/29880145?v=4" width = "50;" alt = "Snailclimb" / >
< br / >
< sub > < b > Guide< / b > < / sub >
< / a >
< / td > < / tr >
< tr >
< td align = "center" >
< a href = "https://github.com/hbw1994" >
< img src = "https://avatars.githubusercontent.com/u/22744421?v=4" width = "50;" alt = "hbw1994" / >
< br / >
< sub > < b > Null< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/hncboy" >
< img src = "https://avatars.githubusercontent.com/u/27755574?v=4" width = "50;" alt = "hncboy" / >
< br / >
< sub > < b > Null< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/stronglong" >
< img src = "https://avatars.githubusercontent.com/u/15846157?v=4" width = "50;" alt = "stronglong" / >
< br / >
< sub > < b > Itermis< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/janey668" >
< img src = "https://avatars.githubusercontent.com/u/99872936?v=4" width = "50;" alt = "janey668" / >
< br / >
< sub > < b > Null< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/klsq94" >
< img src = "https://avatars.githubusercontent.com/u/16208392?v=4" width = "50;" alt = "klsq94" / >
< br / >
< sub > < b > Hui Cao< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/kongyanbo-cx" >
< img src = "https://avatars.githubusercontent.com/u/58963923?v=4" width = "50;" alt = "kongyanbo-cx" / >
< br / >
< sub > < b > Null< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/lishiyu" >
< img src = "https://avatars.githubusercontent.com/u/36871640?v=4" width = "50;" alt = "lishiyu" / >
< br / >
< sub > < b > Null< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/Nhxz" >
< img src = "https://avatars.githubusercontent.com/u/72447160?v=4" width = "50;" alt = "Nhxz" / >
< br / >
< sub > < b > Nhxz< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/op-lht" >
< img src = "https://avatars.githubusercontent.com/u/34021816?v=4" width = "50;" alt = "op-lht" / >
< br / >
< sub > < b > Op-lht< / b > < / sub >
< / a >
< / td > < / tr >
< tr >
< td align = "center" >
< a href = "https://github.com/wangjie-github" >
< img src = "https://avatars.githubusercontent.com/u/35762878?v=4" width = "50;" alt = "wangjie-github" / >
< br / >
< sub > < b > Wangjie< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/wangyi123456" >
< img src = "https://avatars.githubusercontent.com/u/25248959?v=4" width = "50;" alt = "wangyi123456" / >
< br / >
< sub > < b > Null< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/Williamren97" >
< img src = "https://avatars.githubusercontent.com/u/43086401?v=4" width = "50;" alt = "Williamren97" / >
< br / >
< sub > < b > William Ren< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/wzw8795" >
< img src = "https://avatars.githubusercontent.com/u/90670917?v=4" width = "50;" alt = "wzw8795" / >
< br / >
< sub > < b > Null< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/huaxianchao" >
< img src = "https://avatars.githubusercontent.com/u/50727527?v=4" width = "50;" alt = "huaxianchao" / >
< br / >
< sub > < b > Null< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/yangzhiw" >
< img src = "https://avatars.githubusercontent.com/u/13634974?v=4" width = "50;" alt = "yangzhiw" / >
< br / >
< sub > < b > Opentanent< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/yhc777" >
< img src = "https://avatars.githubusercontent.com/u/71164753?v=4" width = "50;" alt = "yhc777" / >
< br / >
< sub > < b > Null< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/zhaiweij" >
< img src = "https://avatars.githubusercontent.com/u/10173248?v=4" width = "50;" alt = "zhaiweij" / >
< br / >
< sub > < b > Zhaiweij< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/zhaojinchao95" >
< img src = "https://avatars.githubusercontent.com/u/33742097?v=4" width = "50;" alt = "zhaojinchao95" / >
< br / >
< sub > < b > Zhaojinchao< / b > < / sub >
< / a >
< / td > < / tr >
< tr >
< td align = "center" >
< a href = "https://github.com/zj1997" >
< img src = "https://avatars.githubusercontent.com/u/31212787?v=4" width = "50;" alt = "zj1997" / >
< br / >
< sub > < b > Null< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/li-xiao-shuang" >
< img src = "https://avatars.githubusercontent.com/u/34903552?v=4" width = "50;" alt = "li-xiao-shuang" / >
< br / >
< sub > < b > 李晓双 Li Xiao Shuang< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/oreoft" >
< img src = "https://avatars.githubusercontent.com/u/51789848?v=4" width = "50;" alt = "oreoft" / >
< br / >
< sub > < b > 没有气的汽水< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/wo883721" >
< img src = "https://avatars.githubusercontent.com/u/10241323?v=4" width = "50;" alt = "wo883721" / >
< br / >
< sub > < b > Xinhao< / b > < / sub >
< / a >
< / td >
< td align = "center" >
< a href = "https://github.com/Createsequence" >
< img src = "https://avatars.githubusercontent.com/u/49221670?v=4" width = "50;" alt = "Createsequence" / >
< br / >
< sub > < b > 黄成兴< / b > < / sub >
< / a >
< / td > < / tr >
< / table >