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May 26, 2025 · Backend Development

Implementing Load‑Balancer‑Like Auto‑Decision Logic in PHP Applications

This article explores how to embed load‑balancer concepts such as intelligent request distribution, health checks, automatic failover, and dynamic strategy adjustment directly into PHP applications using algorithms like weighted round‑robin, response‑time balancing, and circuit‑breaker patterns, providing code examples and practical deployment scenarios.

FailoverPHPalgorithm

0 likes · 11 min read

Implementing Load‑Balancer‑Like Auto‑Decision Logic in PHP Applications

Spring Full-Stack Practical Cases

Nov 18, 2024 · Backend Development

Master Spring Boot 3 Actuator: Custom Endpoints, Health Checks, and Monitoring

Explore comprehensive Spring Boot 3 Actuator capabilities—including enabling CORS, creating custom endpoints, configuring health indicators, HTTP tracing, security auditing, and process monitoring—through detailed explanations, YAML configurations, and full Java code examples, empowering developers to effectively monitor and manage production-ready applications.

ActuatorJavaMonitoring

0 likes · 8 min read

Master Spring Boot 3 Actuator: Custom Endpoints, Health Checks, and Monitoring

Selected Java Interview Questions

Apr 19, 2023 · Operations

Zero‑Downtime Deployment with Kubernetes and Spring Boot: Health Checks, Rolling Updates, Graceful Shutdown, Autoscaling, Prometheus Monitoring, and Config Separation

This guide explains how to achieve zero‑downtime releases of a Spring Boot application on Kubernetes by configuring readiness/liveness probes, rolling‑update strategies, graceful shutdown, horizontal pod autoscaling, Prometheus metrics collection, and externalized configuration via ConfigMaps.

ConfigMapKubernetesPrometheus

0 likes · 11 min read

Zero‑Downtime Deployment with Kubernetes and Spring Boot: Health Checks, Rolling Updates, Graceful Shutdown, Autoscaling, Prometheus Monitoring, and Config Separation

Wukong Talks Architecture

Aug 3, 2022 · Backend Development

How to Assemble a Service Registry: Requirements, Interfaces, and Technical Choices

This article explains how to assemble a production‑grade service registry by analyzing requirements, defining registration/discovery interfaces, comparing push and health‑check mechanisms, selecting long‑connection technologies, and choosing data‑storage and high‑availability strategies, all illustrated with JSON examples and design guidelines.

Long ConnectionSerializationService Discovery

0 likes · 14 min read

How to Assemble a Service Registry: Requirements, Interfaces, and Technical Choices

DevOps Cloud Academy

Mar 22, 2022 · Operations

Four Simple Practices to Improve Deployment: Health Checks, Event Annotation, Pod Impact Minimization, and Blue‑Green Deployment

The article outlines four practical steps—application health checks, event annotation, minimizing pod impact, and blue‑green deployment—to streamline production releases, increase visibility, and reduce downtime while ensuring services run as expected.

DeploymentDevOpsMonitoring

0 likes · 8 min read

Four Simple Practices to Improve Deployment: Health Checks, Event Annotation, Pod Impact Minimization, and Blue‑Green Deployment

Aikesheng Open Source Community

Feb 17, 2022 · Databases

Understanding MHA Health Check Mechanism and Ping Types for MySQL Failover

The article explains why MHA’s default long‑connection ping cannot detect a hung MySQL instance, introduces three configurable ping_type options (select, connect, insert), shows how to modify the configuration and test the behavior with Perl code and shell scripts, and details the internal health‑check workflow.

Database MonitoringFailoverMHA

0 likes · 12 min read

Understanding MHA Health Check Mechanism and Ping Types for MySQL Failover

High Availability Architecture

Oct 13, 2020 · Cloud Native

Service Discovery: Call Patterns, Consistency Trade‑offs, and Health‑Check Designs

This article examines the motivations for service discovery in microservice architectures, compares client‑side and server‑side discovery patterns, discusses consistency versus availability trade‑offs (CAP, CP vs AP), and reviews various health‑check mechanisms, graceful up/down strategies, metadata considerations, and high‑availability designs.

MicroservicesService Discoverycloud-native

0 likes · 14 min read

Service Discovery: Call Patterns, Consistency Trade‑offs, and Health‑Check Designs

DevOps Cloud Academy

Oct 9, 2020 · Operations

Four Simple Practices to Improve Deployment Reliability and Reduce Downtime

The article outlines four practical steps—application health checks, event annotation, pod impact minimisation, and blue‑green deployments—to help teams deploy code with minimal effort, zero interruption, and clear visibility into service health across environments.

Deploymentblue-greencloud-native

0 likes · 8 min read

Four Simple Practices to Improve Deployment Reliability and Reduce Downtime

Java Architecture Diary

Mar 23, 2020 · Backend Development

Why SpringBoot Admin Shows Services Offline and How to Fix Sentinel Health

This article explains how SpringBoot Admin visualizes service status via the Spring Actuator health endpoint, why some services appear offline despite functioning, and provides step‑by‑step troubleshooting of Sentinel health checks, including configuration tweaks and code examples to ensure proper initialization and connectivity.

SentinelSpring ActuatorSpringBoot

0 likes · 7 min read

Why SpringBoot Admin Shows Services Offline and How to Fix Sentinel Health

Architects Research Society

Mar 20, 2020 · Operations

Envoy Health Checks: Active, Passive, Filters, and Connection‑Pool Interaction

Envoy provides active and passive health checks—including HTTP, L3/L4, and Redis types—configurable intervals and failure thresholds, along with a health‑check filter that can bypass, forward, or cache requests, and detailed connection‑pool handling for HTTP/1.1 and HTTP/2 to ensure reliable service routing.

EnvoyService Meshconnection pool

0 likes · 7 min read

Envoy Health Checks: Active, Passive, Filters, and Connection‑Pool Interaction

Architects Research Society

Mar 19, 2020 · Cloud Native

Service Discovery in Envoy: Types, Consistency Models, and Health‑Check Routing

This article explains Envoy’s service discovery mechanisms—including static, strict DNS, logical DNS, original‑destination, and Service Discovery Service—detailing how they work, their consistency models, and how health‑checking influences routing decisions in production environments.

EnvoyService Discoverycloud-native

0 likes · 8 min read

Service Discovery in Envoy: Types, Consistency Models, and Health‑Check Routing

HomeTech

Dec 20, 2019 · Cloud Native

Practical Experience of Containerizing Java Applications: Docker, JVM Tuning, Multi‑Stage Builds, and Operational Tips

This article shares the 2019 cloud‑native migration experience of an e‑commerce team, covering Docker and Kubernetes basics, Java‑Docker compatibility, memory and CPU limits, log collection, JDK version choices, Dockerfile and multi‑stage build practices, health checks, graceful shutdown, and common pitfalls encountered during containerization.

ContainerizationDockerJVM

0 likes · 21 min read

Practical Experience of Containerizing Java Applications: Docker, JVM Tuning, Multi‑Stage Builds, and Operational Tips

360 Tech Engineering

Dec 11, 2019 · Backend Development

Implementing a Simple Load Balancer in Go

This article walks through building a basic round‑robin load balancer in Go, covering the underlying principles, data structures, reverse‑proxy integration, atomic indexing, concurrency handling, health‑check mechanisms, and how to extend the implementation for production use.

ConcurrencyGoReverse Proxy

0 likes · 11 min read

Implementing a Simple Load Balancer in Go

360 Zhihui Cloud Developer

Dec 10, 2019 · Backend Development

Build a Simple Go Load Balancer with Round‑Robin and Health Checks

This article walks through building a simple Go load balancer using round‑robin distribution, reverse proxy, atomic indexing, health checks, and concurrency‑safe data structures, providing complete code examples and explanations for each component.

GoReverse ProxyRound Robin

0 likes · 12 min read

Build a Simple Go Load Balancer with Round‑Robin and Health Checks

Efficient Ops

Oct 15, 2019 · Operations

How Baidu’s Staged Release and Intelligent Health Checks Prevent Deployment Failures

This article explains Baidu’s multi‑stage deployment process, the importance of health‑check monitoring between stages, and how rule‑based and AI‑driven checks automatically detect abnormal metric changes to reduce change‑induced outages and improve operational stability.

DeploymentDevOpsIntelligent Monitoring

0 likes · 10 min read

How Baidu’s Staged Release and Intelligent Health Checks Prevent Deployment Failures

Architects Research Society

Jan 11, 2018 · Operations

Envoy Outlier Detection and Ejection Mechanism Overview

The article explains Envoy's outlier detection and ejection process, detailing how unhealthy upstream hosts are identified and temporarily removed based on consecutive 5xx errors, gateway failures, or success‑rate thresholds, and describes the logging format and configuration options for these health‑check mechanisms.

Envoyejectionhealth check

0 likes · 6 min read

Envoy Outlier Detection and Ejection Mechanism Overview

Tencent Database Technology

Dec 28, 2017 · Databases

CDB for MySQL Read-Only Instances and RO Group Architecture and Features

This article explains the architecture and key features of CDB for MySQL read-only instances and RO groups, including read-write separation, horizontal scaling, automatic load balancing, health checks, and dynamic instance removal for high-delay instances.

Database ScalingMySQLRO Group

0 likes · 5 min read

CDB for MySQL Read-Only Instances and RO Group Architecture and Features

Architecture Digest

Jul 7, 2016 · Operations

Understanding Load Balancing and the Design of Alibaba's VIPServer

This article explains the fundamentals of load balancing, compares common techniques such as DNS round‑robin, hardware and software load balancers, discusses their advantages and drawbacks, and introduces Alibaba's VIPServer as a mid‑tier, seven‑layer load‑balancing solution with advanced health‑check and traffic‑routing features.

L4/L7VIPServercloud operations

0 likes · 19 min read

Understanding Load Balancing and the Design of Alibaba's VIPServer