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README
Apache-2.0

hotkey

正在京东APP后台灰度了几千台机器,等618海量并发检验后再推广使用,暂时不要下载使用它。

该框架历经多次压测,8核单机worker端每秒可接收处理16万个key探测任务,16核单机至少每秒20万,实际压测达到30万以上,CPU平稳支撑,框架无异常。测试详情可去我CSDN博客查看。

介绍

对任意突发性的无法预先感知的热点请求,包括并不限于热点数据(如突发大量请求同一个商品)、热用户(如爬虫、刷子)、热接口(突发海量请求同一个接口)等,进行毫秒级精准探测到。 然后对这些热数据、热用户等,推送到该应用部署的所有机器JVM内存中,以大幅减轻对后端数据存储层的冲击,并可以由客户端决定如何使用这些热key(譬如对热商品做本地缓存、对热用户进行拒绝访问、对热接口进行熔断或返回默认值)。 这些热key在整个应用集群内保持一致性。

核心功能:热数据探测并推送至集群各个服务器

适用场景:

1 mysql热数据本地缓存

2 redis热数据本地缓存

3 黑名单用户本地缓存

4 爬虫用户限流

5 接口、用户维度限流

6 单机接口、用户维度限流限流

7 集群用户维度限流

8 集群接口维度限流

尚未完成

控制台功能缺失如下:

1.rule的定时保存,当etcd更换时需要能一键导入原有配置

2.对/jd/count/cartsoa/ 目录下信息进行展示,代表的是每个worker连接的client数量(已完成)

3.对/jd/caffeineSize/ 目录进行展示,里面是每个worker内caffeine缓存的数量

4.筛选功能,对记录表里做筛选,按时间范围筛选key出现次数大于xx次的数据

5.导出功能,将key排重后导出的功能,按时间范围筛选

6.还有很多

本人不会前端,只能靠外援来做页面。有兴趣参与开发的联系我qq 272551766。

该开源项目战略意义重大,要经历百万级并发,参与京东开源中间件项目建设,一直在等你。

安装教程

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使用说明

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简介

对任意突发性的无法预先感知的热点数据,包括并不限于热点数据(如突发大量请求同一个商品)、热用户(如恶意爬虫刷子)、热接口(突发海量请求同一个接口)等,进行毫秒级精准探测到。然后对这些热数据、热用户等,推送到所有客户端JVM内存中,以大幅减轻对后端数据存储层的冲击,并可以由客户端决定如何分配、使用这些热key(譬如对热商品做本地缓存、对热用户进行拒绝访问、对热接口进行熔断或返回默认值)。这些热数据在整个服务端集群内保持一致性。 展开 收起
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