fix: ensure automic operation in limit-count plugin#3991
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| if not ret then | ||
| return nil, err | ||
| end | ||
| local remaining,err = red:eval(script,1,key,limit,window) |
Member
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Need a space around the operator. Please fix other similar places.
| return setmetatable(self, mt) | ||
| end | ||
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| local script = "if redis.call('ttl',KEYS[1]) < 0 then " |
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Would it be better to use exists instead of ttl?
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I think ttl is better. ttl will set the expire time on the key which is permanent. Both are O(1) Time complexity.
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tokers
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| local script = "if redis.call('ttl', KEYS[1]) < 0 then " |
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What about using long string quotes.
local scripts [=[ .... ]=]| } | ||
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| local script = "if redis.call('ttl', KEYS[1]) < 0 then " |
ychdesign
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moonming
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Close apache#3988 Signed-off-by: spacewander <[email protected]>
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Signed-off-by: spacewander <[email protected]>
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What this PR does / why we need it:
Use redis's eval() to ensure atomic operations of ttl and incrby, and solve the situation where a small number of requests are accidentally killed in high concurrency scenarios
使用redis的eval()确保ttl和incrby的原子性操作，解决高并发场景下少量请求被误杀的情况
Pre-submission checklist: