#monitoring

Domain Expiration Was Not On Our Alerting Checklist

The call came at 6 AM on Monday. "The website is down." I checked the servers. Running fine. Checked the load balancers. Healthy. Checked the application logs. Normal traffic until Saturday, then... nothing. Then I checked the domain. It had expired ...

15h ago9 min read

PMPhilip McClarencepostgresdba.hashnode.dev

Diagnosing and Resolving Lock Contention in PostgreSQL

PostgreSQL Lock Contention: The 10-Second Cascade That Takes Down Your App A single forgotten COMMIT can queue 50 transactions and bring your application to its knees. Lock contention in PostgreSQL is uniquely dangerous because it escalates exponenti...

17h ago3 min read

HHongtech.mrleong.net

Monitor MySQL Replication Status with a Bash Script

This is a Bash script that check if the replica (slave) health status. If there is an issue, it will exist with non-zero status. This is useful when used with monitoring tools like [Monit](https://mmo

2d ago2 min read

SPsandip paridatechlye.hashnode.dev

How to Avoid AI API Rate Limits: Production-Tested Strategies for 2026

AI API rate limits will kill your application's growth faster than any other technical issue. After hitting rate limits that cost us $30,000 in lost revenue during a traffic spike, I've developed bulletproof strategies that handle 10x traffic growth ...

2d ago3 min read

TDTim Derzhavetstimderzhavets.hashnode.dev

Taming Callback Hell: Practical asyncio Patterns for Production Python

Your asyncio code works perfectly in development, then mysteriously hangs in production with no stack trace. You've scattered print statements everywhere, but the event loop swallows errors whole. After hours of debugging, you discover a forgotten aw...

3d ago24 min read

TDTim Derzhavetstimderzhavets.hashnode.dev

Navigating the CNCF Landscape: A Decision Framework for Selecting Cloud Native Tools

You're staring at a wall of 1,200+ projects in the CNCF Landscape, your CTO wants a container runtime recommendation by Friday, and every blog post you find reads like vendor marketing. The interactive landscape map looks impressive in presentations,...

3d ago19 min read

TDTim Derzhavetstimderzhavets.hashnode.dev

NATS Streaming: Building Resilient Event-Driven Systems Without Kafka's Complexity

Your microservices need reliable message delivery, but Kafka feels like overkill for your team's scale. You're tired of managing ZooKeeper clusters and tuning partition counts for a system that processes thousands—not millions—of messages per second....

3d ago21 min read

TDTim Derzhavetstimderzhavets.hashnode.dev

kubectl Command Patterns That Senior Engineers Actually Use Daily

You've deployed your hundredth pod, but when production breaks at 2 AM, you're still frantically googling "kubectl get pods not showing containers." The gap between knowing kubectl exists and wielding it instinctively during incidents is where senior...

3d ago23 min read

TDTim Derzhavetstimderzhavets.hashnode.dev

eBPF Fundamentals: Building Production-Grade Kernel Observability Without Recompiling Linux

You need to trace network packets at the kernel level to debug a production latency issue, but recompiling the kernel isn't an option. Traditional approaches like kernel modules require restarts and risk crashing your system with a single pointer der...

3d ago18 min read

TDTim Derzhavetstimderzhavets.hashnode.dev

Building a Self-Healing GitLab Runner Fleet on Kubernetes

Your CI/CD pipeline just failed at 3 AM because a runner crashed mid-deployment. By the time you wake up, your team has lost hours of productivity, your staging environment is in an inconsistent state, and your morning standup opens with "Why is the ...

3d ago24 min read

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#monitoring

Domain Expiration Was Not On Our Alerting Checklist

Diagnosing and Resolving Lock Contention in PostgreSQL

Monitor MySQL Replication Status with a Bash Script

How to Avoid AI API Rate Limits: Production-Tested Strategies for 2026

Taming Callback Hell: Practical asyncio Patterns for Production Python

Navigating the CNCF Landscape: A Decision Framework for Selecting Cloud Native Tools

NATS Streaming: Building Resilient Event-Driven Systems Without Kafka's Complexity

kubectl Command Patterns That Senior Engineers Actually Use Daily

eBPF Fundamentals: Building Production-Grade Kernel Observability Without Recompiling Linux

Building a Self-Healing GitLab Runner Fleet on Kubernetes

#monitoring

Search Hashnode

#monitoring

Domain Expiration Was Not On Our Alerting Checklist

Diagnosing and Resolving Lock Contention in PostgreSQL

Monitor MySQL Replication Status with a Bash Script

How to Avoid AI API Rate Limits: Production-Tested Strategies for 2026

Taming Callback Hell: Practical asyncio Patterns for Production Python

Navigating the CNCF Landscape: A Decision Framework for Selecting Cloud Native Tools

NATS Streaming: Building Resilient Event-Driven Systems Without Kafka's Complexity

kubectl Command Patterns That Senior Engineers Actually Use Daily

eBPF Fundamentals: Building Production-Grade Kernel Observability Without Recompiling Linux

Building a Self-Healing GitLab Runner Fleet on Kubernetes