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This article introduces how to use visual studio code to build golang development environment and debug environment on Mac platform. 1. brew install golang # install brew install golang # Check whether the installation is successful $ go version go version go1.12.7 darwin/amd64 $ brew info go go: stable 1.13.3 (bottled), HEAD Open source progra ...

Content of this article Using Redis to optimize interface performance in high concurrency scenarios Database optimistic lock With the approaching of the double 11, all kinds of promotional activities began to become popular, and the mainstream ones are seckill, coupons, and so on. The main scenarios involving high concurrency competing for th ...

This paper First appeared in My blog , if you think it's useful, please like the collection and let more friends see it. Recently, I developed a very simple tool, the total code is less than 200 lines. Today, briefly introduce it. What tool is this? It is a tool for visualizing Go Module dependencies. Why development Why do you want to develop ...

This article was first published on the public account [my little bowl soup] to scan the QR code at the end of the article for attention, exchange and study together In cloud platform development and middleware containerization, there is often a need to delete k8s resource objects in batches. Here are some examples of kubectl and golang sending ...

kubernetes version: 1.13.2 background Because of the redis cluster created by the operator, the redis cluster is deleted abnormally (including the redis exporter statefullset and redis statefullset) after the kubernetes APIs server is restarted. After deletion, the operator rebuilds and reorganizes the cluster, and the instance IP changes (mi ...

brief introduction Routing overview Define handler Calibration parameter Encrypted Password and Data Storage Other handler s Get the user list Update user summary The current part of the code brief introduction In the previous section, you've learned roughly how to use Gin to read and write requests.This section is the practice, compl ...

This article mainly describes how to generate docker image from your program and publish it to k8s environment. Before that, you need to understand the basic docker usage, basic k8s concepts and commands. Step1 CodingTo facilitate the use of the previous code, put the KV value into the ETC cluster. The code is as follows: package main import ...

Recent use of Go to import data from Excel into the server is for http requests But there is a problem that new Goroutine will be added indefinitely after reading from the file. Causes all cards to be stuck in the initialization request and then gets stuck. Problem simulation Simulation code func main() { pool := sync.WaitGroup{} for ...

Usually a simple http service framework is to register a bunch of routes and then call different logic to process them according to the routing. But in fact, there may be some uniform processing involved in almost all routes, such as logging, such as permissions and so on. So it's a good idea to do a pretreatment in the middle at this time. ...

Usually, we do this by connecting MongoDB from the command line: mongo -u <user> -p <pass> --host <host> --port 28015 Or use the standard connection string address URI: mongodb://[username:password@]host1[:port1][,...hostN[:portN]][/[database][?options]] # for example mongo mongodb://127.0.0.1:27017 It can also be used direct ...