Redis 过期时间问题

Redis 过期时间问题

The timeout will only be cleared by commands that delete or overwrite the contents of the key, including DEL, SET, GETSET and all the *STORE commands. This means that all the operations that conceptually alter the value stored at the key without replacing it with a new one will leave the timeout untouched. For instance, incrementing the value of a key with INCR, pushing a new value into a list with LPUSH, or altering the field value of a hash with HSET are all operations that will leave the timeout untouched.

• del/set/getset和所有*store的命令会清除过期时间，变为-1
• incr/lpush/hset等操作，过期时间保持原状

参考文档

https://redis.io/commands/expire