redis OBJECT command
Translation results：
英[ˈɒbdʒɪkt] US[ˈɑ:bdʒekt]
##n.Object; target; object; object, objectvi.Disapprove, oppose; feel disgustedvt. Reasons for objectionThird person singular: objects Plural: objects Present participle: objecting Past tense: objected Past participle: objectedredis OBJECT commandsyntax
Function: The OBJECT command allows viewing the Redis object of a given key from within.
Syntax: OBJECT subcommand [arguments [arguments]]
Description: It is usually used for debugging or understanding in order to save space And the case of using special encoding for key. When using Redis as a cache program, you can also determine key eviction policies through the information in the OBJECT command.
Available versions: >= 2.2.3
Time complexity: O(1)
Returns: REFCOUNT and IDLETIME return numbers. ENCODING returns the corresponding encoding type.
redis OBJECT commandexample
redis> SET game "COD" # 设置一个字符串 OK redis> OBJECT REFCOUNT game # 只有一个引用 (integer) 1 redis> OBJECT IDLETIME game # 等待一阵。。。然后查看空转时间 (integer) 90 redis> GET game # 提取game， 让它处于活跃(active)状态 "COD" redis> OBJECT IDLETIME game # 不再处于空转 (integer) 0 redis> OBJECT ENCODING game # 字符串的编码方式 "raw" redis> SET phone 15820123123 # 大的数字也被编码为字符串 OK redis> OBJECT ENCODING phone "raw" redis> SET age 20 # 短数字被编码为 int OK redis> OBJECT ENCODING age "int"