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hippo4j/README.md

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<p align="center">
<strong>ThreadPool, so easy.</strong>
</p>
<p align="center">
<img src="https://img.shields.io/badge/程序员-龙台-blue.svg" />
<a target="_blank" href="http://mp.weixin.qq.com/s?__biz=Mzg4NDU0Mjk5OQ==&mid=100007311&idx=1&sn=d325c1a509d6ee89469a1134ac0a8cf5&chksm=4fb7c6f778c04fe111e9cf52723675b8e8cbbbf9e848741a5d9c20620ff6c778b6613e021a34&scene=18#wechat_redirect">
<img src="https://img.shields.io/badge/公众号-龙台 blog-yellow.svg" />
</a>
<a target="_blank" href="https://github.com/longtai94/dynamic-thread-pool">
<img src="https://img.shields.io/badge/⭐-github-orange.svg" />
</a>
<a href="https://github.com/longtai94/dynamic-thread-pool/blob/develop/LICENSE">
<img src="https://img.shields.io/github/license/longtai94/dynamic-thread-pool?color=42b883&style=flat-square" alt="LICENSE">
</a>
<img src="https://img.shields.io/badge/JDK-1.8-violet.svg" />
<img src="https://img.shields.io/badge/release-v1.0.0-green.svg" />
<img src="https://img.shields.io/github/stars/longtai94/dynamic-thread-pool.svg" />
</p>
<br/>
我有一个 IDEA动态线程池监控主意来源于美团技术公众号 [点击查看美团线程池文章](https://tech.meituan.com/2020/04/02/java-pooling-pratice-in-meituan.html)
<br/>
看了文章后深受感触,再加上最近线上线程池的不可控以及不可逆等问题,想做出一个兼容性、功能性、易上手等特性集于一身的的开源项目。目标还是要有的,虽然过程可能会艰辛
<br/>
目前这个项目是由作者独立开发,时间在下班后、周六天等。具体什么时候能发布 1.0 版本不好说,需要看实际的开发情况
<br/>
根据目前的想法美团技术文章中支持的特性DTPDynamic Thread Pool项目都会兼容进去可能部分会因为作者技术有限无法兼容
比如:
- 修改阻塞队列长度
- 修改线程池核心线程数、最大线程数、线程存活时长...
- 线程池详细信息监控
- 线程池负载报警
- ...
<br/>
项目不会强依赖某个不通用的中间件比如配置中心Nacos、Apollo、Consul... 有可能会将组件全部支持,自定义选择使用
<br/>
<img src="https://images-machen.oss-cn-beijing.aliyuncs.com/image-20210707112609388.png" alt="美团动态化线程池功能架构" style="zoom:50%;" />
<br/>
> 图片来源自美团技术博客
<br/>
## 本地部署
目前动态线程池功能已经完成,大家可以直接把代码拉到本地运行
<br/>
> 项目数据库连接是作者个人 ECS Docker 搭建的 MySQL防君子不防小人大家直接使用即可
<br/>
启动 server 模块下 ServerApplication 启动类
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启动 example 模块下 ExampleApplication 启动类
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可以通过调用接口修改线程池配置
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修改请求如下,**在做示例时不要改动 tenantId、itemId、tpId**
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POST http://localhost:6691/v1/cs/configs
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```json
{
"tenantId": "common",
"itemId": "message-center",
"tpId": "message-consume",
"coreSize": 3,
"maxSize": 10,
"queueType":9,
"capacity":1000,
"keepAliveTime" : 1000,
"isAlarm":1,
"capacityAlarm":80,
"livenessAlarm":80
}
```
<br/>
接口调用成功后,观察 example 控制台日志输出,日志输出包括不限于此信息即为成功
<br/>
[🚀] Changed thread pool. coreSize :: x, maxSize :: x, queueType :: x, capacity :: x, keepAliveTime :: x