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This article explains how Baidu's vertical search platform tackled massive data growth and scaling challenges by redesigning its data management system, introducing elastic scheduling, decoupling ETCD access, implementing auto‑scaling, and advancing shard expansion to improve performance, stability, and cost efficiency.
This article outlines a step‑by‑step solution for exposing pod domain names inside a corporate network using CoreDNS with an etcd backend, including server and agent deployment, configuration, verification, and practical usage recommendations.
Learn step‑by‑step how to transition Calico’s data store from etcd to Kubernetes, covering prerequisite checks, locking the datastore, exporting and importing data, reconfiguring calicoctl, applying the new manifests, and unlocking the store, while highlighting benefits and tips for a smooth migration.
This article explains why extending gRPC is necessary, outlines the go‑zero directory structure, describes how go‑zero adapts gRPC through a wrapper generated by goctl, and walks through service initialization and startup, highlighting metrics, etcd registration, interceptors, and health checks.
This article compares popular Java etcd client libraries, evaluates their features, performance, and suitability, and provides a hands‑on tutorial using jetcd with Maven dependencies, code examples for watching and reading keys, and discusses runtime considerations such as thread handling.
This article analyzes Kubernetes security threats from cloud, cluster, and container perspectives, enumerates high‑risk permissions, default privileged accounts, and insecure configurations, and provides concrete hardening steps such as least‑privilege RAM policies, etcd encryption, RBAC tightening, and workload isolation measures.
Redis distributed locks require unique identifiers, atomic Lua releases, and TTL refreshes to avoid deadlocks, while the Redlock algorithm adds majority quorum but remains vulnerable to clock drift and client pauses, so critical systems should combine it with fencing tokens or version checks for true safety.
This article walks through the evolution from a single‑machine Java monolith to a distributed, container‑based platform, detailing master‑worker roles, core Kubernetes‑like components, networking, scheduling, and plug‑ins for a complete cloud‑native orchestration solution.
This article compares the consistency read mechanisms of the distributed key‑value stores Consul and etcd, detailing Consul’s three read modes and leader‑forwarding logic, and explaining etcd’s serialize and linearizable reads, including the internal notification and index‑checking processes.
This article walks through the complete Kubernetes pod creation workflow, from submitting the YAML with kubectl to the API server, storing the definition in etcd, scheduling, kubelet orchestration, container runtime delegation, CNI networking, health probing, and endpoint setup for services.
This article analyses the frequent compatibility problems that arise when using etcd v3.3/v3.4 together with newer gRPC and protobuf versions, explains their root causes, and presents the solution introduced in etcd v3.5 with modular Go packages.
This tutorial walks through installing the etcd client, creating an Nginx deployment for verification, backing up the etcd data store, validating the backup, and restoring the backup to a Kubernetes cluster while handling component shutdown and restart procedures.
This article details a real-world Kubernetes control‑plane outage where kube‑apiserver repeatedly OOM‑killed, explores cluster metrics, logs, heap and goroutine profiles, hypothesizes root causes such as etcd latency and DeleteCollection memory leaks, and offers step‑by‑step troubleshooting and prevention guidance.
This article details a real‑world Kubernetes control‑plane outage where kube‑apiserver repeatedly OOM‑killed, examines cluster metrics, logs, heap and goroutine profiles, explores root‑cause hypotheses such as etcd latency and DeleteCollection memory leaks, and offers practical prevention steps.
This guide explains how to adjust node quotas, kernel parameters, and etcd configurations for large Kubernetes clusters, covering cloud provider limits, GCE and Alibaba Cloud settings, API server tuning, and pod resource best practices to ensure reliable scaling and performance.
This article provides a concise overview of etcd and Kubernetes, detailing etcd’s features and use‑cases, explaining Kubernetes fundamentals, its relationship with Docker, and describing key components such as Minikube, Kubectl, Kubelet, common deployment methods, and the platform’s cluster management architecture.
The article explains how to build reliable distributed locks using Redis, Zookeeper, and etcd, describing the essential concepts of mutual exclusion, safety, and liveness, showing code examples, highlighting common issues, and comparing each solution's advantages and drawbacks.
The article details two high‑availability DNS implementations for Tencent Cloud—an intelligent BIND‑based server and a CoreDNS solution backed by an ETCD cluster—covering DNS fundamentals, installation steps, configuration files, zone creation, health checks, and verification of internal and external name resolution across multi‑AZ deployments.
This article analyzes a September 2021 incident where a Kubernetes cluster’s kube-apiserver repeatedly OOM-killed, causing kubectl hangs, by examining cluster specs, monitoring data, logs, heap and goroutine profiles, and the DeleteCollection implementation, ultimately offering troubleshooting steps and preventive measures for control-plane stability.
This article provides a detailed introduction to etcd, covering its purpose as a highly‑available distributed key‑value store, core Raft‑based architecture, key concepts, common application scenarios, step‑by‑step installation and cluster deployment, as well as essential command‑line operations for managing data, backups, and cluster members.