Alibaba cloud Q & A 2022-02-13 08:24:48 阅读数:98
If you want to Redis The expiration key is used for timed expiration processing , What to do ？
Each set expiration time of key All need to create a timer , It will be cleared immediately after the expiration time . This strategy can immediately clear expired data , It's very memory friendly ; But it will take up a lot of CPU Resources to process overdue data , This affects the response time and throughput of the cache .
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