The underlying magic of Go interfaces

01 Deconstruction: The Underlying Structure of the Interface The interface can flexibly adapt to different types, which stems from the “dual-column storage” logic of its underlying design. However, there are key differences in the structure between empty and non-empty interfaces, which is the basis for understanding the characteristics of the interface. 1.1 Empty Interface (eface): … Read more

Golang Map Usage Guide

In Go, Map is a crucial data structure that stores data in key-value pairs, allowing for quick and easy retrieval of values ​​using keys. It has wide applications in practical development. This article will provide a comprehensive and in-depth explanation of the definition, usage, features, advanced operations, and practical techniques of Map in Go. I. … Read more

Unveiling the Secrets of MySQL Connection Pool Configuration in Go: How to Optimize Performance by Over 3x

Chapter 1: The Core Mechanism of MySQL Connection Pools in Go Go database/sqlprovides abstractions for database operations through packages, among which MySQL connection pooling is a key component for improving application performance and resource utilization. Connection pooling manages a set of reusable database connections at the underlying level, avoiding the overhead of frequently establishing and destroying … Read more

Deployment and Practice of Google Cloud Go in Large and Medium-Sized Enterprises

Why choose Google Cloud Go? google-cloud-go is an official Go language client library maintained by Google, providing native support for 200+ Google Cloud services. In enterprise applications, it offers: Core Enterprise Service Module Cloud Storage – Object Storage Solution storage/client.go provides enterprise-level file storage management: // Enterprise storage client initialization ctx := context.Background() client, err … Read more

Golang Kafka client error handling: From retriable to fatal errors

This article will delve into the error handling mechanism in the kafka-go library, helping you accurately identify retriable and fatal errors, and providing practical handling strategies. Error Types and Classifications In kafka-go, the core definition of error handling is in the error.go file. This file defines Errorthe types and their related methods, categorizing Kafka errors into … Read more

GoLand breakpoint debugging displays “Variable not available”.

question After upgrading Go to version 1.25, during debugging, the debug panel displays “variables are unavailable”. solve 1. Update DLV version 2. Check the Delve version 3. Configure GoLand by opening  Hele->Edit Customer Properties and adding. 4. Restart GoLand Replenish delve has three debugging modes: