redis ttl

elements and take the sort (by default ascending). Zrem Myzset "The other" #删除two Zincrby Myzset 2 "#将two的顺序值加上2 Zrank myzset "#返回集合中元素的索引下标值". Zrevrank Myzset two# element reverses and returns the new subscript value. Zrevrange myzset 0-1 withscores# in reverse order (equivalent to descending sort) Zrangebyscore Myzset 1 withscores# Returns the element with the order 1-10 (can be paged). Zcount Myzset 1 The number of elements between #返回顺序在1-10. Zcard myzset# Returns the number of all elements

Redis expiration key deletion policy and redis expiration key policy We have learned that Redis is a memory database, and data in Redis is stored in the memory in the form of key-value, which is maintained and managed by the Redis server, memory is precious. unwanted data or

. However, for instructions that do not have a memory request, they will still respond normally, such as GET . One thing to note is that if your Redis is a master Redis(which means that your Redis has a redis), then when you set the memory usage limit, You need to leave some memory space in the system for the synchroni

). The Redis command Basic (including string string type) commands Set key value [EX|PX N]//Set value [and set expiration time to n seconds/msec]get key//Get Value del key//delete value Incby|decby key N//Add key value self-increment or decrement nrename key newkey//overwrite The original select n//selects the nth database TTL key//query key expiration time, 1 means never expires, does not exist for -2expi

Sorted sets Zadd Myset3 1 A (integer) 1 127.0.0.1:6379> Zadd Myset3 2 b (integer) 1 127.0.0.1:6379> Zadd Myset3 3 b (integer) 0 127.0.0.1:6379> zrange Myset3 0-1 withscores ............. The simplest data type of string Hash data type, can be used as table, hash table, faster than string speed List data type stack, queue Set data type and set, intersection, difference set Zset version of data type set, ordered collection =================================== Key

This article mainly describes how to install Redis under Linux and expand the Redis in PHP, interested in the friend's reference, I hope to help you. Part I: Installing RedisWant to install Redis to this directory /usr/local/redis You want to download the installation package to this directory /usr/local/src Then the

Redis data persistence, redis dataIn general, there are two persistence solutions: RDB and AOF.The RDB method creates a time point-based snapshot for the dataset at a certain interval.The AOF method records the write operations received by the Server to log files. When the Server restarts, It replays these write operations to recreate the dataset. This method is similar to the statement-based binlog in MySQ

cycle informationDoes not exist return nil$ REDIS-CLI Dump Dangcheng::apple::color(nil)Returning serialization results$redis-CLI Dump Dangcheng::apple::count"\x00\xc1\xa0\x00\x06\x00\xb0t6\xdat\x99#\xa2" Expire and TTL setting lifetimes and viewing time remainingThe TTL command is the remaining of the query lifetime,

Tags: client launch technology share listen monitor RTU ips command integerObjectiveRedis is a common memory-based Key-value database that is more advanced than memcache and supports a variety of data structures, efficiently and quickly. Redis makes it easy to solve high-concurrency data access problems, and it's good to handle real-time monitoring signals.EnvironmentUbuntu 18.04Installing the Redis server

Reprint Please specify source: http://blog.csdn.net/l1028386804/article/details/52578080 Before, I gave you some articles about Redis, and you can refer to blog post's article on Redis. Today, we're going to learn how to build a high-availability and load-balanced redis, well, no more, let's go straight to the chase. first, the test environment 1. Machine Machine

seconds '; Comments must not be less than 2 times in 5 Seconds if (count ($redis->zrangebyscore (' User:1000:comment ', Time ()-5, Time ())) User Timeline/feeds People, themes, brands and columns to focus on Redis is mostly used as a cache here. $redis->zadd (' User:2000:feed:topic ', Time (), ' 2000 '),//score for timestamp uid 13 for the topic$

deleted on Redis. In other words, subscribers must remain online to receive new messages. Typical use cases for Redis Publish/subscribe channels include real-time configuration distributions, simple chat servers, and more. In a Web server cluster, each node can be a subscriber to the Redis Publish/Subscribe channel. Messages posted to the channel are also pushed

Redis3.0 cluster CRC16 algorithm PHP client Implementation method (PHP obtains the Redis partition slot of Redis data in the redis3.0 cluster and obtains the Redis server address of the partition based on the partition slot)

1. Extension: wget https://github.com/phpredis/phpredis/archive/develop.zip2. Unzip the package after the download is finished　　Unzip and switch to the CD phpredis-develop/directory.　　3. Check if Phpize and php-config are installedConditions not installed　　　　After the installation　　　　4. Implement the Yum install Php-devel for installing phpize and php-config the tools required for other extensions are also installed.　　How to install Redis extensions u

.(integer) 1Redis 127.0.0.1:6379> decr MyKey #对空值执行递减操作, its original value is set to 0, the decrement value is-1(integer)-1Redis 127.0.0.1:6379> del MyKey(integer) 1Redis 127.0.0.1:6379> incr MyKey #对空值执行递增操作, the original value is set to 0, the increment value is 1(integer) 1Redis 127.0.0.1:6379> set MyKey Hello #将该键的Value设置为不能转换为整型的普通字符串.OkRedis 127.0.0.1:6379> incr MyKey #在该键上再次执行递增操作时, Redis will report an error message.(Error) ERR value is not a

System Environment: Os:oracle Linux Enterprise 5.6 redis:redis-2.6.8 python:python-2.7.3 Redis Python package version: Redis-2.7.2.tar Prerequisites: 1. Ensure that the Redis has been successfully installed and properly configured, reference documentation Master-Slave Copy Document: http://blog.csdn.net/lichangzai/article/details/8669674 Parameter Description Do

Redis source code parsing (5): redis persistence, redis source code parsing Redis is often called a memory database because it stores all data in the memory. To enable the data to continue to be used after the server restarts, Redis provides two persistence modes: RDB and A

Tags: interactive connection Sharing str etc fuse customer runCould not connect to Redis at 127.0.0.1:6379:connection refused1. Locate redis.conf and modify Daemonize No to daemonize Yes so you can run the background by default[Email protected] trade01 conf.d]# vi/etc/redis.conf2. Turn on the client to ensure server-side startup[Email protected] trade01 src]#./redis-server. /etc/redis.confNow you can access

(Integer) 1Redis 127.0.0.1: 6379>Incr mykey # increment the null value. The original value is set to 0 and the incremental value is 1.(Integer) 1Redis 127.0.0.1: 6379>Set mykey hello # Set the Value of the key to a common string that cannot be converted to an integer.OKRedis 127.0.0.1: 6379>Incr mykey # When the incremental operation is performed again on the key, Redis reports an error message.(Error) ERR value is not an integer or out of rangeRedis

class SessionHelper{Private const int secondsTimeOut = 60*20; // The default expiration time is 20 minutes, in seconds. Public RedisHelper Redis = new RedisHelper (false );Public LoginUserInfo this [string key]{Get{String webCookie = WebHelper. GetCookie (key );If (webCookie = ""){Return null;}Key = key + "_" + SecureHelper. AESDecrypt (webCookie ); // How many seconds is there before the expiration time?Long l =