redis PERSIST command

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 command syntax

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 command example

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