redis PERSIST command
Translation results：
resist
UK[rɪˈzɪst] US[rɪˈzɪst]
v. Resist, resist; endure; oppose, resist
n.Prevent Dye; preservative
Third person singular: resists Present participle: resisting Past tense: resisted Past participle: resisted
redis PERSIST commandsyntax
Function:Remove the survival time of a given key and convert this key from "volatile" (key with survival time) to "persistent" (a key without survival time, never Expired key).
Syntax: PERSIST key
Available versions: >= 2.2.0
Time complexity: O(1)
Return: When the survival time is removed successfully, return 1. If key does not exist or key does not have a survival time set, return 0.
redis PERSIST commandexample
redis> SET mykey "Hello" OK redis> EXPIRE mykey 10 # 为 key 设置生存时间 (integer) 1 redis> TTL mykey (integer) 10 redis> PERSIST mykey # 移除 key 的生存时间 (integer) 1 redis> TTL mykey (integer) -1