Redis breakdown penetration avalanche

redis breakdown

redis Key expired , Ask to go MySQL

Set the never expire time

redis through

redis There is no key , Ask to go MySQL（ Malicious request ）

The bloon filter

redis An avalanche

redis A large number of Keys expire

Set condition query judgment , If redis There is no data to query , Go to the database

Add distribution lock , The first query thread fetches data from the database , Save the data to redis, The second query thread goes in

If the first thread does not query data in the database , Then put null Deposit in redis