Tag：redis
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Time：2021-12-27
preface Pipeline feature in redis: briefly describe how redis sends multiple commands from the client at one time, and how the server responds to multiple commands from the client at one time. Redis uses the TCP server of the client server model and request / response protocol, which means that a request can be completed […]
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Time：2021-12-14
installRedis (1) Download redis ? 1 2 wget http://redis.googlecode.com/files/redis-2.2.11.tar.gz tar xzvf redis-2.2.11.tar.gz (2) Compile and install redis ? 1 make && make install (3) Copy and modify configuration files ? 1 2 cp redis.conf /etc/redis.conf vi /etc/redis.conf Note the following modifications: ? 1 2 3 4 daemonize yes loglevel warning logfile /var/log/redis.log maxmemory 2GB (do […]
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Time：2021-11-4
Method 1: use pipeline When using pipelining to send a command, the redis server must put some requests in the queue (using memory). After execution, the redis server sends the results at one time During the use of pipeline, it will be “exclusive” link, and other operations of non “pipeline” type cannot be […]
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Time：2021-10-20
. net core uses redis based on stackexchange.redis tutorial, as follows 1、 Add reference package StackExchange.Redis Microsoft.Extensions.Configuration 2、 Modify the configuration file appsettings.json { “RedisConfig”: { “Redis_Default”: { “Connection”: “127.0.0.1: 6379”, “InstanceName”: “Redis1: ” }, “Redis_6”: { “Connection”: “127.0.0.1: 6379”, “DefaultDatabase”: 6, “InstanceName”: “Redis2: ” } } } 3、 Simple packaging Redisclient.cs class public class […]
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Time：2021-10-18
1、 What is connection pool and what is the use of connection pool Let’s take a look at how others introduce connection pools: The basic idea of connection pool is to store the database connection as an object in memory during system initialization. When users need to access the database, they do not establish a […]
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Time：2021-10-17
preface As a very successful database, redis provides a wealth of data types and commands. Using these, we can easily and efficiently complete many cache operations, but there are always some special problems or needs to be solved. At this time, we may need to customize our own redis data structure and commands. Redis command […]
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Time：2021-10-14
preface WhyluaScript operationredisdatabase 1. Reduce overhead – reduce the number of requests to the redis server 2. Atomic operation – redis executes Lua script as an atom 3. Reusable – other clients can use Lua scripts that have been executed 4. Increase redis flexibility – Lua script can help redis do more things Lua script […]
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Time：2021-6-26
In this paper, an example is given to show how PHP uses the ordered set Zset of redis to implement the delay queue. The details are as follows: Delay queue is a message queue with delay function. Compared with ordinary queue, it can consume messages at a specified time. Application scenarios of delay queue: 1. […]
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Time：2021-6-24
This paper introduces several common operation modes and usages of redis in PHP. The details are as follows: 1、 Simple string caching For example, cache some data with slow SQL query and infrequent update. <?php $redis = new Redis(); $redis->connect(‘127.0.0.1’, 6379, 60); $sql = ‘select * from tb_order order by id desc limit 10’; //Pseudo […]
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Time：2021-4-23
Redis is a memory database with very strong performance. It is generally used as a cache, but it can not only be used as a cache. For example, the famous distributed framework Dubbo can use redis as a service registry. Next, let’s introduce how. Net core uses redis’s publish / subscribe function. Redis publish subscribe […]
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Time：2021-3-18
concept Redis is an open source log and key value database written in ANSI C language, supporting network, memory based and persistent. Similar to memcached, redis supports more value types, including string, list, set, Zset and hash. On this basis, redis supports various sorting methods. Like memcached, data is cached in memory to ensure efficiency. […]
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Time：2021-3-16
This example for you to share the spring boot integration redis simple seckill system specific code, for your reference, the specific content is as follows The project has an address. I’ll put it at the end of the article 1. Direct service. We will introduce two second kill modes public interface GoodsService { /** *Second […]
