https://yennj12.js.org/yennj12_blog_V4/tags/high-availability/Recent content in High Availability on YennJ12 Engineering BlogHugo -- gohugo.ioen-usMon, 29 Sep 2025 08:28:29 +0800https://yennj12.js.org/yennj12_blog_V4/posts/aws-load-balancer-complete-guide-comparison/Mon, 29 Sep 2025 08:28:29 +0800https://yennj12.js.org/yennj12_blog_V4/posts/aws-load-balancer-complete-guide-comparison/🎯 Introduction AWS Load Balancers are critical components for building highly available, fault-tolerant, and scalable applications in the cloud. They distribute incoming traffic across multiple targets, ensuring optimal resource utilization and system reliability. This comprehensive guide explores all AWS Load Balancer types, their unique features, and when to use each one for maximum effectiveness. Understanding the nuances between Application Load Balancer (ALB), Network Load Balancer (NLB), Gateway Load Balancer (GWLB), and Classic Load Balancer (CLB) is essential for architecting robust cloud solutions that can handle varying traffic patterns and requirements.https://yennj12.js.org/yennj12_blog_V4/posts/redis-sentinel-high-availability-setup-guide/Mon, 29 Sep 2025 07:54:22 +0800https://yennj12.js.org/yennj12_blog_V4/posts/redis-sentinel-high-availability-setup-guide/🎯 Introduction Redis Sentinel provides high availability and monitoring for Redis deployments. It’s a distributed system that monitors Redis master and replica instances, performs automatic failover, and acts as a configuration provider for clients. This comprehensive guide covers Redis Sentinel architecture, setup procedures, Java integration, and production best practices. Redis Sentinel solves critical production challenges including automatic failover, service discovery, and configuration management, making it essential for mission-critical applications that require high availability and minimal downtime.