How the Elizabeth Holmes Doc 'You Can See Everything' Is Deceiving You
We haven't written up this one. Hacker News has the full story — the link below goes straight to it.
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Advanced Infrastructure & Distributed Systems: Architectural Deep Dive into High-Performance Webhook Ingress
Webhooks started as simple fire-and-forget HTTP POST requests. They are now a backbone of event-driven architectures, and the major providers deliver them at very large volume.
- Webhooks evolved from simple HTTP POST to critical event-driven component
- Resilient ingestion requires durable execution engines like Temporal or AWS Step Functions
- Compression algorithms Brotli and Zstandard optimize high-volume webhook processing
Distributed Cron Jobs
Regular cron runs on one server. What happens when you have 10 servers? Each runs the job 10 times. That's a problem. The Problem Single server cron: ✅ Job runs once at 2am 10-server fleet: ❌ Job runs…
- Designate one machine as scheduler node to run all cron jobs
- Implement leader election using etcd or ZooKeeper for redundancy
- Use distributed locks in Redis with 5-minute TTL to prevent duplicates