redis ttl

? But it doesn't matter, getbit should not have problems $redis->getbit (' binary ', 31); Returns the 1//keys Fuzzy Lookup function, supports the * and number (matching one character) $redis->set (' foo1′,123); $redis->set (' foo2′,456); $redis->keys (' foo* '); Returns the array $

practices.3. Best practice 3.1 Apply good fault-tolerant mechanism Connect or request an exception, connect retry and reconnect. Retry time should be greater than cluster-node-time timeor the emphasis on fault tolerance, this is not for cluster, all application design is applicable. 3.2 Develop the Code of development Slow queries, process CPU 100%, client requests slow, or even time out. Avoid generating Hot-key, which causes the node to become the short board of

$redis = new Redis (); Connect, open link Redis service Parameters host:string, service address Port:int, port number timeout:float, link duration (optional, default = 0, unlimited link time) Note: There is also time in redis.conf, default is 300 Pconnect, Popen does not actively close the link Refer to above SetOption Setting up

need to select a key recycling policy that modifies the value of the Maxmemory-policy property in the redis.conf configuration file. If the key in the Redis dataset is set to expire, then the "Volatile-ttl" strategy is the better choice. However, if key fails to expire quickly when the maximum memory limit is reached, or the expiration time is not set at all. It is appropriate to set the value of "ALLKEYS-

; remove a random key, any key# Volatile-ttl->Remove the expired key (minor TTL)# Noeviction-> NO removal is allowed, but a write error is returned.##NOTE: For the above policy, if there is no suitable key, you can remove it. When writing, Redis will return an error.## Write Commands include: set setnxSetex append# Incr decr rpush lpush rpushx lpushx linsert lset

This document is a Chinese php-redis document. it mainly describes some of the commands officially provided by redis. if you have any need, you can refer to phpredis as an extension of php, efficiency is quite high with the linked list sorting function, for creating memory-level module business relationships Useful. The following are the command tips officially provided by

elimination policy. The default value is volatile-lru. Currently, six policies are supported: A. volatile-lru => remove the key with an expire set using an LRU algorithm; B. allkeys-lru-> remove any key accordingly to the LRU algorithm C. volatile-random-> remove a random key with an expire set D. allkeys-random-> remove a random key, any key E. volatile-ttl-> remove the key with the nearest expire time (minor TT