国产av日韩一区二区三区精品,成人性爱视频在线观看,国产,欧美,日韩,一区,www.成色av久久成人,2222eeee成人天堂

Home Database Redis What is the difference between volatile-lru and allkeys-lru?

What is the difference between volatile-lru and allkeys-lru?

Jul 06, 2025 am 12:14 AM
redis caching strategy

The difference between volatile-lru and allkeys-lru is the elimination strategy. 1. volatile-lru only eliminates the keys that have the expiration time set, and retains the keys that have not set the expiration time; 2. allkeys-lru eliminates all keys, regardless of whether the expiration time is set. Both are based on the LRU algorithm to select the least recently used keys for phase-out.

What is the difference between volatile-lru and allkeys-lru?

The difference between `volatile-lru` and `allkeys-lru` in Redis lies in how they select keys to evict when the memory limit is reached. With `volatile-lru`, Redis only considers keys that have an expiration time set (ie, volatile keys) for eviction, using the Least Recently Used (LRU) algorithm to determine which keys to remove. This means that if a key does not have an expiration time, it will Not be evicted, even if it hasn't been accessed in a long time. On the other hand, `allkeys-lru` considers all keys, both volatile and non-volatile, for eviction using the LRU algorithm. This approach allows Redis to free up memory by removing any type of key, regardless of whether it has an expiration time or not. In summary, use `volatile-lru` if you want to prioritize keeping non-volatile keys in memory, and choose `allkeys-lru` if you're OK with any keys being evicted to make space, regardless of their expiration status.

The above is the detailed content of What is the difference between volatile-lru and allkeys-lru?. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undress AI Tool

Undress AI Tool

Undress images for free

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Laravel8 optimization points Laravel8 optimization points Apr 18, 2025 pm 12:24 PM

Laravel 8 provides the following options for performance optimization: Cache configuration: Use Redis to cache drivers, cache facades, cache views, and page snippets. Database optimization: establish indexing, use query scope, and use Eloquent relationships. JavaScript and CSS optimization: Use version control, merge and shrink assets, use CDN. Code optimization: Use Composer installation package, use Laravel helper functions, and follow PSR standards. Monitoring and analysis: Use Laravel Scout, use Telescope, monitor application metrics.

How to use the Redis cache solution to efficiently realize the requirements of product ranking list? How to use the Redis cache solution to efficiently realize the requirements of product ranking list? Apr 19, 2025 pm 11:36 PM

How does the Redis caching solution realize the requirements of product ranking list? During the development process, we often need to deal with the requirements of rankings, such as displaying a...

Recommended Laravel's best expansion packs: 2024 essential tools Recommended Laravel's best expansion packs: 2024 essential tools Apr 30, 2025 pm 02:18 PM

The essential Laravel extension packages for 2024 include: 1. LaravelDebugbar, used to monitor and debug code; 2. LaravelTelescope, providing detailed application monitoring; 3. LaravelHorizon, managing Redis queue tasks. These expansion packs can improve development efficiency and application performance.

What should I do if the Redis cache of OAuth2Authorization object fails in Spring Boot? What should I do if the Redis cache of OAuth2Authorization object fails in Spring Boot? Apr 19, 2025 pm 08:03 PM

In SpringBoot, use Redis to cache OAuth2Authorization object. In SpringBoot application, use SpringSecurityOAuth2AuthorizationServer...

Laravel environment construction and basic configuration (Windows/Mac/Linux) Laravel environment construction and basic configuration (Windows/Mac/Linux) Apr 30, 2025 pm 02:27 PM

The steps to build a Laravel environment on different operating systems are as follows: 1.Windows: Use XAMPP to install PHP and Composer, configure environment variables, and install Laravel. 2.Mac: Use Homebrew to install PHP and Composer and install Laravel. 3.Linux: Use Ubuntu to update the system, install PHP and Composer, and install Laravel. The specific commands and paths of each system are different, but the core steps are consistent to ensure the smooth construction of the Laravel development environment.

Redis's Role: Exploring the Data Storage and Management Capabilities Redis's Role: Exploring the Data Storage and Management Capabilities Apr 22, 2025 am 12:10 AM

Redis plays a key role in data storage and management, and has become the core of modern applications through its multiple data structures and persistence mechanisms. 1) Redis supports data structures such as strings, lists, collections, ordered collections and hash tables, and is suitable for cache and complex business logic. 2) Through two persistence methods, RDB and AOF, Redis ensures reliable storage and rapid recovery of data.

How to configure slow query log in centos redis How to configure slow query log in centos redis Apr 14, 2025 pm 04:54 PM

Enable Redis slow query logs on CentOS system to improve performance diagnostic efficiency. The following steps will guide you through the configuration: Step 1: Locate and edit the Redis configuration file First, find the Redis configuration file, usually located in /etc/redis/redis.conf. Open the configuration file with the following command: sudovi/etc/redis/redis.conf Step 2: Adjust the slow query log parameters in the configuration file, find and modify the following parameters: #slow query threshold (ms)slowlog-log-slower-than10000#Maximum number of entries for slow query log slowlog-max-len

In a multi-node environment, how to ensure that Spring Boot's @Scheduled timing task is executed only on one node? In a multi-node environment, how to ensure that Spring Boot's @Scheduled timing task is executed only on one node? Apr 19, 2025 pm 10:57 PM

The optimization solution for SpringBoot timing tasks in a multi-node environment is developing Spring...

See all articles