20 articles tagged #AWS
Your AWS bill suddenly jumps because of NAT Gateway charges, even though customer traffic hasn't increased. In many cases, hidden internal traffic, inefficient network architecture, or unnecessary internet-bound requests—not more users—are responsible. Learn why NAT Gateway costs spike and how
Deleted S3 buckets don't disappear from your codebase or DNS records. Attackers can register the same bucket name and silently serve malicious content under your domain. Here's how to find and fix every dangling reference before someone exploits it.
Applications that fetch secrets directly from AWS Secrets Manager during startup often work perfectly in development but fail under production-scale deployments due to API throttling. Learn why throttling occurs, how it impacts application startup, and how to build scalable, resilient secret manage
RDS Proxy pinning quietly bypasses connection multiplexing and starves your pool without a single error in your logs. Here's how to detect it, diagnose the root cause, and eliminate it for good.
Amazon SQS guarantees at-least-once message delivery, meaning duplicate processing is always possible. One of the most common causes is an incorrectly configured visibility timeout. Learn how visibility timeouts work, why duplicate processing occurs, and how to build resilient, idempotent consumers
Your ECS service should scale out automatically when traffic spikes, but it doesn't — tasks stay at minimum count while CPU pegs at 100%. Here's how to diagnose and fix stalled auto scaling before it costs you uptime.
A failed Terraform apply can leave a lock record in DynamoDB that blocks every subsequent command. Here's how to diagnose the stale lock, safely remove it, and prevent it from happening again.
Deployed your stack and CloudWatch alarms won't move past INSUFFICIENT_DATA? This guide breaks down every real cause — from missing metric namespaces to IAM gaps — and shows you exactly how to fix each one.
Lambda cold starts can turn a 50ms function into a 3-second timeout behind API Gateway — and the root cause isn't always obvious. Here's how to diagnose what's actually happening and fix it systematically.
A failed deployment should automatically return your infrastructure to a healthy state. However, AWS CodeDeploy rollbacks can sometimes stall midway, leaving part of your fleet running the new version while the rest runs the old one. Learn why this happens and how to build rollback-safe deployment
Parquet files written by pandas can sometimes appear successful but fail later in Athena, Spark, or PyArrow. Learn how to identify corruption causes and build reliable S3 data pipelines with proper validation and monitoring.
Your AWS ElastiCache Redis cluster looks healthy, CPU usage is low, and no alarms are firing—yet application latency keeps increasing. The culprit may be Redis evictions. When Redis starts silently removing keys due to memory pressure, cache hit rates drop and databases suddenly absorb extra load.