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Cluster cluster addslots(集群 槽位) cluster count failure reports(集群計數(shù)失敗報告) cluster countkeysinslot cluster delslots cluster failover cluster forget cluster getkeysinslot cluster info cluster keyslot(集群鍵槽) cluster meet cluster nodes(集群節(jié)點) cluster replicate(集群復(fù)制) cluster reset(集群重置) cluster saveconfig cluster set config epoch cluster setslot cluster slaves cluster slots readonly readwrite Connection auth echo ping quit select swapdb Geo geoadd geodist geohash geopos georadius georadiusbymember Hashes hdel hexists hget hgetall hincrby hincrbyfloat hkeys hlen hmget hmset hscan hset hsetnx hstrlen hvals HyperLogLog pfadd pfcount pfmerge Keys del dump exists expire expireat keys migrate move object persist pexpire pexpireat pttl randomkey rename renamenx restore scan sort touch ttl type unlink wait Lists blpop brpop brpoplpush lindex linsert llen lpop lpush lpushx lrange lrem lset ltrim rpop rpoplpush rpush rpushx Pub/Sub psubscribe publish pubsub punsubscribe subscribe unsubscribe Scripting eval evalsha script debug script exists script flush script kill script load Server bgrewriteaof bgsave client getname client kill client list client pause client reply client setname command command count command getkeys command info config get config resetstat config rewrite config set dbsize debug object debug segfault flushall flushdb info lastsave monitor role save shutdown slaveof slowlog time Sets sadd scard sdiff sdiffstore sinter sinterstore sismember smembers smove spop srandmember srem sscan sunion sunionstore Sorted Sets zadd zcard zcount zincrby zinterstore zlexcount zrange zrangebylex zrangebyscore zrank zrem zremrangebylex zremrangebyrank zremrangebyscore zrevrange zrevrangebylex zrevrangebyscore zrevrank zscan zscore zunionstore Strings append bitcount bitfield bitop bitpos decr decrby get getbit getrange getset incr incrby incrbyfloat mget mset msetnx psetex set setbit setex setnx setrange strlen Transactions discard exec multi unwatch watch
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EXPIREAT key timestamp

自1.2.0起可用。

時間復(fù)雜度: O(1)

EXPIREA T與 EXPIRE 具有相同的效果和語義,但不是指定表示TTL(生存時間)的秒數(shù),而是需要絕對的 Unix時間戳(1970年1月1日以來的秒數(shù))。過去的時間戳?xí)⒓磩h除密鑰。

有關(guān)該命令的具體語義,請參閱 EXPIRE 的文檔。

背景

引入 EXPIREAT 是為了將相對超時轉(zhuǎn)換為 AOF 持久模式的絕對超時。當(dāng)然,它可以直接用來指定給定密鑰將在特定時間到期。

返回值

整數(shù)回復(fù),具體為:

  • 1 如果超時被設(shè)置。

  • 0如果key不存在。

例子

redis>  SET mykey "Hello" "OK" 

redis>  EXISTS mykey (integer) 1 

redis>  EXPIREAT mykey 1293840000 (integer) 1 

redis>  EXISTS mykey (integer) 0

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