Programmer Group

We all know that locking is an effective means to prevent the same resource from being preempted by multiple parties in the concurrent situation. Locking is actually synchronous mutual exclusion (or exclusive). That is to say, no matter how many concurrent requests there are at the same time, only one can handle them, and the rest can either w ...

0. Effect demonstration It's annoying to plug in a video.You can go out and turn right to Youku. Click on me!).   1. Preparations 1.1 Front End Framework The front end uses nuxt.js based on vue.js.Why use nuxt.js？ The first thing I did was a blog project, so SSR is important.Although it has nothing to do with the login registration described i ...

outline For the principle of cluster, please refer to Redis design and Implementation - working principle of cluster , I won't go into details here. I introduced how to use redis trib toolset to install cluster a long time ago How to build and use Redis cluster In the past two days, I read the official documents and found a new way of installa ...

In an interesting discussion, let's take a look at the docker compose configuration script: version: '2' services: redis: image: 'redis:5.0.3-stretch' restart: always command: redis-server --requirepass redis environment: # ALLOW_EMPTY_PASSWORD is recommended only for development. - ALLOW_EMPTY_PASSWORD=yes ...

    The mutate plug-in can modify the data in the event, including rename, update, replace, convert, split, gsub, uppercase, lowercase, strip, remove field, join, merge and other functions. 1,rename For a field that already exists, rename its field name.   filter { mutate { rename = ...

1. Start by creating a spring boot project. See the following links for a way to create a spring boot project:  https://blog.csdn.net/liutong123987/article/details/79385513 2. Add the following configuration to the pom.xml file that you just created the project <dependency> <groupId>org.springframework.boot ...

Restrictions: If an article gets at least 200 support votes, it is considered to be an interesting article. If the website publishes 1000 articles every day, and 50 of them meet the requirements of interesting articles, what the website has to do is to put these 50 articles in the top 100 of the art ...

This blog post needs to be based on the basic environment of zabbix. Please refer to Build zabbix 1, Configure zabbix to monitor redis (1) Deploy zabbix agent Please refer to the blog for details of agent deployment and software package download Configure email alarm and wechat alarm monitored by Zabbix There is no detailed explanation here! [ ...

Reprinted from: https://www.jianshu.com/p/2fc92a929e8e Narration In order to prevent the API without token access from being called infinitely, some services need to be API restricted. It's like taking some interfaces for registration or sending verification codes. If they are called maliciously an ...

Redis master-slave replication (one master and many slaves) is built and read-write separation is realized Preface: Because of the high performance of redis, it is highly dependent on it in the application. Sometimes a redis server has insufficient performance and needs to be configured with a redis ...