The Most Confusing Production Issue
There’s a situation in production that makes no sense.
Everything looks fine.
CPU? Normal.
Memory? Normal.
Disk? Plenty of space.
But your application is down.
There’s a type of failure you won’t see in logs.
It won’t trigger alerts.
It won’t spike CPU.
It won’t page anyone at 2am.
But your service still doesn’t respond.
During an outage, someone asks:
“What’s broken?”
And the room goes silent.
This isn’t a monitoring problem.
It’s a debugging problem.
⚠️ How Engineers Overcomplicate Debugging
Debugging is not just checking tools.
They are:
Checking logs.
Checking dashboards.
Checking network.
Restarting services.
Every time something breaks in production,
people start looking at everything.
Except the simplest thing.
🧠 What Happens During Incidents
You run:
curl http://localhost:8080And see:
Connection refused
You check processes.
Nothing.
That’s why:
No CPU spike.
No memory issue.
No disk problem.
No logs.
There was nothing to debug.
Because nothing was running.
⚙️ What Most Engineers Get Wrong
Most people assume:
“If production is down → something failed”
But sometimes:
Nothing failed.
Nothing crashed.
👉 The service just never started.
🛡️ What Production Debugging Actually Looks Like
Good debugging is simple first.
Start with:
• Is the service running?
• Is the port open?
• Can I hit it locally?
Then go deeper:
• CPU
• Memory
• Disk
• Logs
• Network
Not the other way around.
🧰 Free DevOps Resources
Linux Debugging Commands Used:
• ps
• free
• df
• lsof
• tail
• find
• curl
• top
• history
• ssh
Senior Software Engineer – Infrastructure
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Senior Software Engineer – Observability
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Staff Software Engineer – Infrastructure
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Software Engineer / DevOps (Infrastructure Role)
🎥 Watch the Full Episode
• Real 2AM production debugging
• 10 Linux commands used in incidents
• Step-by-step investigation
• The exact mistake engineers miss
Arbaz
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