Backend Development
Golang
In Go programming, how to correctly manage the connection and release resources between Mysql and Redis?
In Go programming, how to correctly manage the connection and release resources between Mysql and Redis?
Effective management of MySQL and Redis connection resources in Go language
In Go language development, especially when dealing with databases (such as MySQL) and caches (such as Redis), it is crucial to efficiently manage connected resources. This article will explore how to correctly initialize, use, and release MySQL and Redis connections to avoid resource leakage.
First, let’s take a look at common resource management misunderstandings. Many developers are used to creating global database or cache connections when the program is initialized and reused throughout the application lifecycle. Although this method is simple, it is easy to cause problems that resources cannot be released when the application is closed.
Redis Connection Management
Suppose you use github.com/go-redis/redis package. It is not recommended to use global variables to directly hold Redis client connections. A better approach is to use a connection pool and get the connection from the pool if needed and return it after use. This can effectively control the number of connections and avoid resource exhaustion.
Sample code (using connection pool):
import (
"context"
"github.com/go-redis/redis/v8"
)
var redisPool *redis.Client
func initRedisPool() {
redisPool = redis.NewClient(&redis.Options{
// ...Connection parameters...
})
}
func getRedisClient(ctx context.Context) (*redis.Client, error) {
return redisPool, nil // Simplify the example, practical application may require more complex pool management}
func setRedisValue(ctx context.Context, key string, value interface{}) error {
client, err := getRedisClient(ctx)
if err != nil {
return err
}
defer client.Close() // Make sure the connection is released return client.Set(ctx, key, value, 0).Err()
}MySQL Connection Management
For MySQL, it is also not recommended to hold database connections globally when using ORM frameworks (such as GORM). GORM itself provides a connection pooling mechanism, but it still needs to close the connection at the right time. A better practice is to open the connection in each requested handler function and close the connection at the end of the function. This ensures that each request has an independent database connection, avoids concurrency issues, and automatically releases resources after the request is completed.
Sample code (based on GORM, one connection per request):
import (
"gorm.io/driver/mysql"
"gorm.io/gorm"
)
func handleRequest(w http.ResponseWriter, r *http.Request) {
db, err := gorm.Open(mysql.Open("yur_dsn"), &gorm.Config{})
if err != nil {
// Handle error}
defer db.Close() // Make sure the connection is released // ... database operation...
sqlDB, err := db.DB()
if err != nil {
// Handle error}
defer sqlDB.Close() // Make sure the underlying connection is released}Summarize
Whether it is Redis or MySQL, you should avoid using global variables to directly hold connections. Using connection pools or creating and releasing connections in each request can better control resources, avoid leakage, and improve application stability and performance. When the application is closed, it is necessary to explicitly close the connection pool or all open connections. Remember that effective management of resources is the key to writing robust and efficient Go applications.
The above is the detailed content of In Go programming, how to correctly manage the connection and release resources between Mysql and Redis?. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1386
52
What to do if the git download is not active
Apr 17, 2025 pm 04:54 PM
Resolve: When Git download speed is slow, you can take the following steps: Check the network connection and try to switch the connection method. Optimize Git configuration: Increase the POST buffer size (git config --global http.postBuffer 524288000), and reduce the low-speed limit (git config --global http.lowSpeedLimit 1000). Use a Git proxy (such as git-proxy or git-lfs-proxy). Try using a different Git client (such as Sourcetree or Github Desktop). Check for fire protection
How to solve the efficient search problem in PHP projects? Typesense helps you achieve it!
Apr 17, 2025 pm 08:15 PM
When developing an e-commerce website, I encountered a difficult problem: How to achieve efficient search functions in large amounts of product data? Traditional database searches are inefficient and have poor user experience. After some research, I discovered the search engine Typesense and solved this problem through its official PHP client typesense/typesense-php, which greatly improved the search performance.
How to update code in git
Apr 17, 2025 pm 04:45 PM
Steps to update git code: Check out code: git clone https://github.com/username/repo.git Get the latest changes: git fetch merge changes: git merge origin/master push changes (optional): git push origin master
How to solve SQL parsing problem? Use greenlion/php-sql-parser!
Apr 17, 2025 pm 09:15 PM
When developing a project that requires parsing SQL statements, I encountered a tricky problem: how to efficiently parse MySQL's SQL statements and extract the key information. After trying many methods, I found that the greenlion/php-sql-parser library can perfectly solve my needs.
Solve database connection problem: a practical case of using minii/db library
Apr 18, 2025 am 07:09 AM
I encountered a tricky problem when developing a small application: the need to quickly integrate a lightweight database operation library. After trying multiple libraries, I found that they either have too much functionality or are not very compatible. Eventually, I found minii/db, a simplified version based on Yii2 that solved my problem perfectly.
The Purpose of SQL: Interacting with MySQL Databases
Apr 18, 2025 am 12:12 AM
SQL is used to interact with MySQL database to realize data addition, deletion, modification, inspection and database design. 1) SQL performs data operations through SELECT, INSERT, UPDATE, DELETE statements; 2) Use CREATE, ALTER, DROP statements for database design and management; 3) Complex queries and data analysis are implemented through SQL to improve business decision-making efficiency.
How to solve the problem of PHP project code coverage reporting? Using php-coveralls is OK!
Apr 17, 2025 pm 08:03 PM
When developing PHP projects, ensuring code coverage is an important part of ensuring code quality. However, when I was using TravisCI for continuous integration, I encountered a problem: the test coverage report was not uploaded to the Coveralls platform, resulting in the inability to monitor and improve code coverage. After some exploration, I found the tool php-coveralls, which not only solved my problem, but also greatly simplified the configuration process.
MySQL for Beginners: Getting Started with Database Management
Apr 18, 2025 am 12:10 AM
The basic operations of MySQL include creating databases, tables, and using SQL to perform CRUD operations on data. 1. Create a database: CREATEDATABASEmy_first_db; 2. Create a table: CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY, titleVARCHAR(100)NOTNULL, authorVARCHAR(100)NOTNULL, published_yearINT); 3. Insert data: INSERTINTObooks(title, author, published_year)VA
