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coolvds.com › Blog › DevOps & Infrastructure

Stop the Bleeding: A Pragmatic Guide to Cloud Cost Optimization in 2021

· CoolVDS Team

Cloud bills are skyrocketing. This guide cuts through the marketing fluff to show you how to audit resource usage, optimize bandwidth costs, and leverage predictable NVMe infrastructure to reduce TCO by up to 40%.

coolvds.com › Blog › DevOps & Infrastructure

Observability vs. Monitoring: Why Your "Green" Dashboard Is Lying To You

· CoolVDS Team

Monitoring tells you the server is up. Observability tells you why the checkout API times out only for users in Bergen. We dissect the three pillars—metrics, logs, traces—and how to host them compliantly in Norway.

coolvds.com › Blog › DevOps & Infrastructure

Slash Your CI/CD Build Times: Self-Hosted Runners & NVMe I/O

· CoolVDS Team

Stop tolerating 20-minute pipelines. A battle-hardened guide to optimizing GitLab CI runners on high-performance infrastructure, ensuring GDPR compliance and raw speed in the Nordic region.

coolvds.com › Blog › DevOps & Infrastructure

Microservices Architecture in 2021: Patterns That Don't Fail at Scale

· CoolVDS Team

Stop breaking your monolith into a distributed mess. A battle-hardened look at implementation patterns, infrastructure requirements, and why low-latency hardware in Norway is your safety net against distributed complexity.

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

API Gateway Performance Tuning: Surviving the Thundering Herd in 2021

· CoolVDS Team

Stop blaming your code for latency spikes. We dive deep into Linux kernel tuning, Nginx optimization, and the critical role of NVMe storage for API gateways handling high concurrency in the post-Schrems II era.

coolvds.com › Blog › DevOps & Infrastructure

Kubernetes vs. Swarm in 2021: Stop Over-Engineering Your Infrastructure

· CoolVDS Team

It is August 2021. Everyone wants Kubernetes, but few need the headache. We benchmark orchestration overhead, analyze the Schrems II impact on hosting choices, and explain why high-IOPS NVMe is non-negotiable for etcd stability.

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 › Database Management

Database Sharding Architectures: When Vertical Scaling Fails and How to Survive the Split

· CoolVDS Team

Sharding is the nuclear option of database scaling. It introduces complexity, latency, and maintenance nightmares. But when your primary key integer overflows and your IOPS hit the ceiling, it's the only path left. Here is the battle-tested guide to implementing sharding on high-performance infrastructure without losing data.