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本地hash方案 #4

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ZSMX opened this issue Nov 8, 2019 · 2 comments
Open

本地hash方案 #4

ZSMX opened this issue Nov 8, 2019 · 2 comments

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@ZSMX
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ZSMX commented Nov 8, 2019

感觉最后可以加一步，当余票很少时，也许把用户id本地hash，少于多少（比如还有10张票，QPS1w，用hash值少于多少卡掉99%的请求，使qps就100（为余票个数*10）就行）的直接返空，直接显示售罄了，这样让大部分本地库存不用再去请求redis远程减库存。
@zhang570221322
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感觉最后可以加一步，当余票很少时，也许把用户id本地hash，少于多少（比如还有10张票，QPS1w，用hash值少于多少卡掉99%的请求，使qps就100（为余票个数*10）就行）的直接返空，直接显示售罄了，这样让大部分本地库存不用再去请求redis远程减库存。

感觉可以，但是用IP太不公平了吧，不如只用session，然后随机选1%放行。

@bluesonny
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先本地再执行远程

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@ZSMX @zhang570221322 @bluesonny