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coolvds.com › Blog › Database Management

Database Sharding Strategies: Surviving the Write Cliff in 2021

· CoolVDS Team

When vertical scaling hits a wall, sharding is the only way forward. We explore practical strategies for splitting your database while maintaining ACID compliance, minimizing latency, and adhering to strict Norwegian data sovereignty laws.

coolvds.com › Blog › DevOps & Infrastructure

Kubernetes Networking Deep Dive: Surviving the Packet Jungle in 2021

· CoolVDS Team

A battle-hardened look at K8s networking internals, CNI choices, and reducing latency for Norwegian deployments. We dissect overlays, BGP, and why underlying infrastructure dictates your cluster's fate.

coolvds.com › Blog › DevOps & Infrastructure

Escaping the Lambda Trap: Self-Hosted Serverless Architectures on NVMe

· CoolVDS Team

Public cloud serverless functions are convenient until the billing shock hits or GDPR compliance becomes a nightmare. Learn how to build a high-performance, self-hosted FaaS platform using K3s and OpenFaaS on Norwegian infrastructure.

coolvds.com › Blog › DevOps & Infrastructure

Beyond Green Lights: Why Monitoring Fails and Observability Saves Your Weekend

· CoolVDS Team

Monitoring tells you the server is alive. Observability tells you why the database latency spikes only on Tuesdays. We break down the transition from simple metrics to full-stack visibility, specifically for Norwegian dev teams navigating GDPR and Schrems II.

coolvds.com › Blog › DevOps & Infrastructure

Observability vs. Monitoring: Why Your Dashboards Are Lying to You

· CoolVDS Team

Stop relying on green traffic lights. In the era of microservices and distributed systems, traditional monitoring is dead. Here is how to build true observability using the three pillars—logs, metrics, and traces—while keeping your data compliant with Norwegian law.

coolvds.com › Blog › Database Management

Zero-Downtime Database Migration: A DevOps Survival Guide for 2021

· CoolVDS Team

Migrating production databases is high-risk. Learn battle-tested strategies for MySQL and PostgreSQL migrations, covering replication, NVMe performance tuning, and Norwegian data compliance (GDPR/Schrems II).

coolvds.com › Blog › DevOps & Infrastructure

Preparing for the API Apocalypse: Kubernetes 1.22 Deprecations & The End of v1beta1

· CoolVDS Team

Kubernetes 1.22 is scheduled for release later this year, and it brings a hard stop to many beta APIs. If your Ingress or CRD manifests still use legacy versions, your deployments will fail. Here is a battle-plan for Norwegian DevOps teams to migrate before the deadline.

coolvds.com › Blog › Performance Optimization

APM Deep Dive: Why Your Uptime Monitor Is Lying to You

· CoolVDS Team

Ping checks aren't enough. In 2021, professional grade monitoring requires observability into system calls, database latencies, and sovereignty over your metrics. Here is how to build a robust APM stack on Norwegian infrastructure.

coolvds.com › Blog › DevOps & Infrastructure

Self-Hosted APM: A GDPR-Safe Architecture for High-Performance Tracing

· CoolVDS Team

Stop relying on US-based SaaS for observability. Learn how to deploy a production-ready, self-hosted Elastic APM stack on NVMe infrastructure to satisfy Norwegian data sovereignty laws while debugging microservices latency.