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模块五(微博评论)
2022-06-25 12:15:00 【InfoQ】
计算性能预估
非热点事件的高性能架构
分析
- 写评论的时间段虽然大部分情况下与发微博是相同的,但有时也并不重叠,有时可能是微博发出好几个小时,甚至是几天后才写评论。一条微博,可能有上万人阅读,一,二千人评论,发评论的次数与发微博,看微博的次数是相差比较大的,所以需要将评论设置为单独服务
多级负载均衡架构
热点事件时的高可用计算架构
【业务特性分析】

- 发生热点事件,且判断可能会影响系统可用性时,可通过人工,下达指流指令,限制接收用户评论的接口。
- 在kafka写评论缓存队列时,如果缓存满了,可丢掉后续的写操作
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