When the site is running, in order to prevent DDoS attacks or data bursts caused by internal interface calls, nginx provides a limit current limiting module: HttpLimitZoneModule limits the number of concurrent accesses at the same time. HttpLimitReqModule limits access to data, up to a few requests per second. 1. Normal configuration: What is a […]
Tag: limit
Implementing single-machine current limiting based on Spring Boot + Guava
1. What is current limiting Services can sometimes be under great pressure due to frequent network requests, especially those caused by illegal network attacks. Such situations sometimes require some restrictions. Current limiting can be considered a type of service degradation. Current limiting is to limit the input and output traffic of the system to achieve […]
Use redis current limiting — redisson implementation
springboot integrates redisson Please click here Application scenarios Able to accurately limit current flow for specified interfaces Description Redisson uses the leaky bucket algorithm implemented by redis + lua script to limit current Distributed current limiting and stand-alone current limiting can be carried out Use RRateLimiter for current limiting @GetMapping(“/rateLimit”) public String rateLimit(HttpServletRequest request) { […]
Springboot interface current limit to prevent connection point attacks
Article directory summary Overall architecture process Explanation of technical terms technical details summary Summary Use aop aspect + redis to implement interface current limit, IP limit, and prevent repeated submission Overall architecture process Tips: Use aop aspect + redis to implement interface current limit, IP limit, and prevent repeated submission Interface file package com.bzfar.config; import […]
Java’s SpringCloud Alibaba [8] [Spring Cloud microservice Gateway integrates sentinel current limiting]
Java’s SpringCloud Alibaba [1] [Nacos One Article Mastery Series] Jump Java’s SpringCloud Alibaba [2] [Microservice calling component Feign] Jump Java’s SpringCloud Alibaba [3 】[Microservice Nacos-config Configuration Center] Jump Java’s SpringCloud Alibaba [Four] [Microservice Sentinel Service Meltdown] Jump Java’s SpringCloud Alibaba [5] [Microservice Sentinel integrates openfeign for downgrade] Jump Java’s SpringCloud Alibaba [6] [Alibaba microservice distributed […]
Spring Boot implements current limiting annotations
You can also use RateLimiter In high-concurrency systems, the three ways to protect the system are: caching, downgrading, and current limiting. The purpose of current limiting is to protect the system by limiting the rate of concurrent access requests or the number of requests within a time window. Once the rate limit is reached, service […]
MySQL sorting, grouping, and Limit optimization strategies
Table of Contents 1. Two sorting methods in MySQL 2. Sorting optimization strategy 2.1 Add index to sorting field 2.2 You can create a joint index with the WHERT field 2.3 Optimize FilerSort sorting method 3. Group optimization strategy 3.1 Can WHERE but not HAVING 3.2 Reduce ORDER BY, GROUP BY, DISTINCT 3.3 Follow the […]
Large file transfer solution: multi-part upload/download speed limit
Preface In many projects, you will encounter files such as uploading and downloading videos, update packages, and applications. The commonality of such files is that they are very large. In my projects, I have encountered files of about 4G that were downloaded by more than 100 machines at the same time. At this time, if […]
[SpringBoot] Spring’s AOP combined with Redis implements current limiting for SMS interfaces
Article directory Preface 1. Preparation work 2. Current limiting annotation 3. Customize or select redisTemplate 1. Customize RedisTemplate (depending on needs, I use the second option) 2. Use StringRedisTemplate directly 4. Open lua script 5.Annotation analysis 6.Interface testing Foreword Scenario: In order to limit the number of visits to the SMS verification code interface and […]
2. Sentinel basic application & current limiting rules (2)
2.2.1 What is Sentinel is an open-source, lightweight, high-availability flow control component for distributed service architectures developed by the Alibaba middleware team. It mainly uses traffic as the entry point to help users protect services from multiple dimensions such as flow control, circuit breaker degradation, and system load protection. stability. 2.2.2 Basic concepts ? Resources […]