redis modules

Redis-explore Redis and learn basic usage of Redis. Author: Gigi Sayfan time: 2018.8.28Advertisement Redis is a key-value database in the memory. It is free and open-source. It is implemented in C language and runs very fast. Redis is already a mature product (now version 3

Performance-related data indicators Access the redis server through the redis-cli interface, and then use the info command to obtain all information related to the redis service. This information is used to analyze some performance indicators mentioned later in the article. The data output by the info command can be divided into 10 categories: Server Clients

First, design ideas: When Master and Slave are operating normally, Master is responsible for service, Slave is responsible for standby; When Master hangs out, Slave Normal, Slave takes over the service, has the Write permission, simultaneously closes the master-slave copy function; When Master returns to normal, the data is synchronized from the slave, the master-slave copy function is turned off after the data is synchronized, and the master is restored, while sla

yes to release the memory as quickly as possible.Activerehashing yes Refer to: Redis deployment use documentation http://www.elain.org /? P = 505 ========================================================== ====================== Install the Redis extension of PHP Download the https://github.com/nicolasff/phpredis/downloads first # Wget https://github.com/nicolasff/phpredis/downloads # Tar-zxvf nicolasff-

Redis-load and Redis-stat are two small tools written by the Redis author Antirez, including: Redis-load is a stress test tool for Redis Redis-stat is a Redis status

Redis Summary (4) Redis persistence, redis Summary I have summarized the installation and use of Redis. Today I will talk about Redis persistence. 　　 Similar to memcached, redis is a memory database. However,

Data partitioningRedis clusters store data on multiple nodes, that is, different partitions are stored on different nodes, and each node can store multiple partitions. Each partition is also referred to as a "hash slot" in Redis, with a total of 16,384 partitions planned in the Redis cluster. For example: when there are 3 nodes in a cluster, Node A will contain 0-5460 partitions, Node B will contain 5461-10

Write Redis client by yourself-Redis protocol (1), redis Client Network Layer The client interacts with the server over TCP connections. The default port number of the server is 6379. All commands or data sent by the client and server end with \ r \ n (CRLF.Request The Redis Server accepts commands and command paramete

[Redis] 3. Redis cluster deployment and redis cluster deployment A Redis cluster is an assembly that provides data sharing among multiple Redis nodes.Redis clusters do not support the processing of multiple keys commands, because this requires moving data between different n

I analyzed the redis source code for nearly a month, and reached the core, closest to the beginning of the system. I named it the main directory, there are two important files, redis-CLI and redis files, one representing the client's execution file and the other representing the server's files, these two are also the most core

Tags: keyword--synchronous loading targe out technology OSS based on1. The Redis recovery mechanism If only AOF is configured, the AOF file recovery data is loaded when the reboot is restarted; If both RDB and AOF are configured, the boot is only loaded with AOF file recovery data; If only the RDB is configured, startup is the load dump file to recover the data. 2. Recovering data from AoF1 Note the following configurationyesdir

Redis cluster _ 3. redis master-slave automatic switch Sentinel, redis_3.redisRedis SentinelSentinel (Sentinel) is a tool used to monitor the Master Status in redis clusters. It has been integrated into redis2.4 + versions.I. Role of Sentinel:1): Master status detection2) If the Master node is abnormal, the Master-Slave switch will be performed, and one of the Sl

Redis Research (10)-Redis transactions and survival time, redis transactions I. Transaction Overview Redis transactions are a collection of commands. A transaction is the smallest Execution Unit of Redis like a command, either executed or not executed. The principle of a tra

1. Main steps to build Redis cluster1.配置开启节点2.meet3.指派槽4.主从关系分配2. Environmental statement两台虚拟机，IP地址分别为：192.168.81.100和192.168.81.101两台虚拟机操作系统均为：CentOS 7.5 64位两台虚拟机系统说明： 使用yum方式安装Redis 关闭firewalld防火墙使用两台虚拟机的7000,7001,7002端口搭建三主三从的Redis Cluster 其中192.168.81.100主机三个端口启动的Redis Server为主节点 192.168.81.101主机三个端口启动的

") Red Is_port = Config.get ("Redis", "Port") except Exception as Msg:redis_host = "127.0.0.1" Redis_port = 6379 Print (msg) try:logging.info ("Connect Redis server.") Redis_conn = Redis. Strictredis (redis_host,redis_port,0) logging.info ("Put SystemInfo to Redis server.") Redis_conn.lpush ("Host"

This document provides a brief introduction to using the Python version of Redis client redis-py to connect Redis and perform setup and acquisition of Redis binary data.DescriptionCommands such as set,get,setnx,append can also be used to set binary data.Because Redis's own client r