欧美另类zozoxxx,欧美性猛片aaaaaaa做受,六月丁香婷婷色狠狠久久

Article Tags

All
web3.0
- All
- NoSQL database
- Memcached
- cloudera
- memcache
Backend Development
- All
- PHP Tutorial
- Python Tutorial
- Golang
- XML/RSS Tutorial
- C#.Net Tutorial
- C++
- NoSQL database
- Memcached
- cloudera
- memcache
Web Front-end
Database
- All
- Mysql Tutorial
- navicat
- SQL
- Redis
- phpMyAdmin
- Oracle
- MongoDB
- NoSQL database
- Memcached
- cloudera
- memcache
Operation and Maintenance
- All
- Mac OS
- Linux Operation and Maintenance
- Apache
- Nginx
- CentOS
- Docker
- NoSQL database
- Memcached
- cloudera
- memcache
Development Tools
- All
- VSCode
- sublime
- notepad
- git
- composer
- NoSQL database
- Memcached
- cloudera
- memcache
PHP Framework
- All
- Laravel
- YII
- NoSQL database
- Memcached
- cloudera
- memcache
Common Problem
- All
- NoSQL database
- Memcached
- cloudera
- memcache
Other
- All
- IIS
- SEO
- Premiere
- NoSQL database
- Memcached
- cloudera
- memcache
Tech
- All
- AI
- It Industry
- NoSQL database
- Memcached
- cloudera
- memcache
CMS Tutorial
- All
- WordPress
- NoSQL database
- Memcached
- cloudera
- memcache
Java
- All
- javaTutorial
- NoSQL database
- Memcached
- cloudera
- memcache
System Tutorial
- All
- Windows Series
- LINUX
- MAC
- NoSQL database
- Memcached
- cloudera
- memcache
Computer Tutorials
Hardware Tutorial
Mobile Tutorial
- All
- Mobile News
- iPhone
- Android Phone
- NoSQL database
- Memcached
- cloudera
- memcache
Software Tutorial
Mobile Game Tutorial

Home

Technical Articles

Database

Redis

How to solve the problem of storing user tokens in Redis

Redis stores user tokens. When designing a system similar to e-commerce, a common requirement is that each page needs to carry logged-in user information. There are two common solutions: using cookies to save and using JWT to save. But if Redis cache is used in the system, there is also a third solution - caching the user token in Redis. Generate a token when logging in and store it in Redis //Generate a token object and save it in redis redisTemplate.opsForHash().put("token","user",user)

May 31, 2023 am 08:06 AM

redis token

How to solve the timeout of SpringBoot integrated redis client

The problem was during development. Lettuce was used to connect to redis. After a period of inactivity, if I tried to operate redis again, a connection timeout error would be reported. It could be used again after reconnecting. The reason is: Lettuce adaptive topology refresh (Adaptiveupdates) and scheduled topology refresh (Periodicupdates) are turned off by default, causing the problem. Solution one: 1. Rewrite the connection factory instance and change its LettuceClientConfiguration to enable topology update @ConfigurationpublicclassRedisConfig{ @AutowiredprivateRed

May 30, 2023 pm 11:55 PM

redis springboot

How to use redis to implement countdown tasks

An example is as follows: importredisimporttimedefevent_handler(msg):'''After listening to any key expiration, the message obtained is as follows msg={'type':'pmessage',#Return value type 'pattern':'__keyevent@2__:expired',# Source 'channel'

May 30, 2023 pm 11:55 PM

redis

How Springboot uses Redis to implement interface idempotent interception

How to use custom annotations in the text: ① Mark which interface needs to be intercepted by idempotence ② Each interface can require a different idempotence range time, for example: it can be within 2 seconds, it can be within 3 seconds, the time is passed by itself ③ Once triggered Yes, the prompts can be different, for example: VIP interface, ordinary user interface, the prompts are different (just kidding) Effect: The actual combat begins with the core three-piece set of annotations, interceptors, and interceptor configuration ①RepeatDaMie.javaimportjava.lang.annotation.ElementType ;importjava.lang.annotation.Retention;importjava.lang.annot

May 30, 2023 pm 11:44 PM

redis springboot

How to install redis5.0.10 on centos7.8

Prepare a centos7.8 server and modify the host name#hostnamectlset-hostnameredishostInstall redisDownload the redis installation package#cd/opt#wgethttps://download.redis.io/releases/redis-5.0.10.tar.gzUnzip the compressed package# cd/opt#tar-zxfredis-5.0.10.tar.gzCompile and install#cd/opt#cdredis-5.0.10##Install gcc compiler#yuminstallgcc#makeMALLOC=libc##makein

May 30, 2023 pm 11:34 PM

redis centos

How Redis+Caffeine implements distributed second-level cache components

The so-called second-level cache cache is to read data from a slower-reading medium and put it on a faster-reading medium, such as disk-->memory. Usually we store data on disk, such as a database. If you read from the database every time, the reading speed will be affected by the IO of the disk itself, so there is a memory cache like redis. The data can be read out and put into the memory, so that when data needs to be obtained, the data can be returned directly from the memory, which can greatly improve the speed. However, redis is generally deployed separately into a cluster, so there will be consumption of network IO. Although the connection with the redis cluster already has tools such as connection pools, there will still be a certain consumption of data transmission. So there is

May 30, 2023 pm 11:10 PM

redis caffeine

How springboot integrates redis and generates a globally unique index ID

springboot integrated redispom file org.springframework.bootspring-boot-starter-data-redisapplication.yaml file spring:#redis cache redis:connect-timeout:180000#Connection timeout time lettuce:pool:#Maximum number of connections in the connection pool max-active: 8#Maximum blocking waiting time (negative number means no limit)max-wait:1#Maximum idle connection in the connection poolmax-idle:5#Minimum idle connection in the connection poolmin-idle:0#Single-machine mode

May 30, 2023 pm 11:01 PM

redis id springboot

What are the methods for Linux command operation and redis installation?

Computer operating system: Windows 7, 8, 10, Database tomcat cache (redis)...1. If you install a virtual machine, you must exit Kingsoft Antivirus and 360 Protection (disable the vmware program) Command: General syntax: The command is not followed by ./ or ../ to indicate the current directory ../ represents the current directory ../ represents the previous directory/ represents the root directory clear screen disk management: lslist displays the data in the directory:-

May 30, 2023 pm 10:49 PM

linux redis

How to add query function to redis in Node.js

An example: For a new module, we need to install the redis module in our project before it can be used. Command cnpminstallredis to create a new redis.js file. The code is as follows: //Introduce redis varredis=require("redis");//Create a redis client varclient=redis.createClient("6379","127.0.0.1");// Connection error handling client.on("error",function(er

May 30, 2023 pm 09:55 PM

redis node.js

What is the principle of using Redisson red lock in Redis

Why use the red lock master-slave structure of Redis distributed locks? The simplest way to implement Redis distributed locks is to create a key in Redis. This key has an expiration time (TTL) to ensure that the lock will eventually be released automatically. Lose. When the client releases the resource (unlocks it), the key will be deleted. On the surface it seems to work well, but there is a serious single point of failure problem: what if Redis hangs? You might say that this problem can be solved by adding a slave node. But this usually doesn't work. In doing so, we cannot achieve exclusive use of resources, because Redis's master-slave synchronization is usually asynchronous. There is an obvious race condition in this scenario (master-slave structure): the client

May 30, 2023 pm 09:35 PM

redis redisson

How to operate redis and redigo in Go

Go-operate redis, install golang, and operate redis. There are multiple client packages such as redigo and go-redis. The one with the most stars on github is redigo. gogetgithub.com/garyburd/redigo/redisimport "github.com/garyburd/redigo/redis" The connection Conn interface is the main interface for collaboration with Redis. You can use the Dial, DialWithTimeout or NewConn function to create a connection. When the task is completed, the application The Close function must be called to complete

May 30, 2023 pm 09:25 PM

redis go redigo

Why is Redis so fast?

Redis is a NoSQL database based on key-value pairs. Redis's Value can be composed of various data structures and algorithms such as String, hash, list, set, zset, Bitmaps, HyperLogLog, etc. Redis also provides key expiration, publish and subscribe, transactions, Lua scripts, sentinels, Cluster and other functions. Redis executes commands very quickly, and according to the official performance, it can reach 10w+qps. So this article mainly introduces how fast Redis is. The main points are as follows: 1. Development language Now we all use high-level languages ??for programming, such as Java, python, etc. maybe you will

May 30, 2023 pm 08:27 PM

redis

How to solve Redis serialization conversion type error

Cannotconvertvalueoftype'org.springframework.data.redis.core.convert.MappingRedisConverter'torequiredtype'org.springframework.data.redis.core.mapping.RedisMappingContext':nomatchingeditorsorconversionstrategyfound在setV

May 30, 2023 pm 08:26 PM

redis

How to enable IO multi-threading in Redis

Enable IO multi-threading. Before the "Redis6" version, Redis read, parsed, and executed commands in a "single thread". Starting from Redis6, IO multi-threading was introduced. The IO thread is responsible for reading commands, parsing commands, and returning results. After turning it on, it can effectively improve IO performance. I drew a schematic diagram for your reference. As shown in the picture above, the main thread and IO thread will jointly participate in the reading, parsing and result response of commands. But the one that executes the command is the "main thread". The IO thread is turned off by default. You can modify the following configuration in redis.conf to turn it on. io-threads4io-threads-do-readsyes "io-threads" is the number of IO threads (including the main thread), I recommend

May 30, 2023 pm 08:10 PM

redis