September 14, 2009. I remember it as a day when the tech industry was on edge. The Great Recession had just hit, and the cloud vs colo debates were raging louder than ever. GitHub’s launch was still fresh, and everyone seemed to be talking about Git adoption. But for me, it was business as usual—except for the occasional whispers of layoffs at some big players.

Today, I spent my morning dealing with an EC2 outage that had our S3 buckets spilling over like a ruptured dam. The infrastructure team was in a tizzy, and we were all scrambling to contain the damage. It’s funny how much you can sweat over a single Amazon service when your entire stack depends on it.

The EC2 Incident

We’ve been running on AWS for just about two years now. Our transition from colocation to cloud has been smooth, but every once in a while, these outages remind us of the risks we took. This one was particularly brutal because it hit during what felt like the peak of our traffic cycle.

It started innocently enough with an alarm sounding off. “Low disk space on instance,” the alert read. A quick glance at the metrics showed that indeed, a few instances were nearing their storage limits. I had just scheduled some maintenance downtime for them to clear out old log files and cache data.

But as we went through the checklist, something wasn’t right. The logs indicated high network traffic, and suddenly, S3 was reporting write failures. Our backups, which are supposed to run every hour, stopped mid-way. Panic set in when we realized that our staging environment was also failing its writes.

Digging In

I called a quick meeting with the team. We went through the logs line by line, cross-referencing everything we could think of. It didn’t take long to identify the issue—network throttling on EC2. AWS had decided to throttle network traffic for some instances in certain regions due to high demand.

The good news was that it wasn’t a widespread issue; our case was an anomaly. The bad news? We were caught off guard and now faced potential data loss or at least significant downtime while we worked out the fix.

Lessons Learned

This outage hit home because it highlighted how much we rely on AWS. While we have backup procedures in place, the reality is that a failure like this can have cascading effects. It made us re-evaluate our disaster recovery plans and consider more robust options for data replication and failover strategies.

We ended up writing scripts to automate the process of checking network status and alerting us if any of our critical services start acting up. We also reached out to AWS support, who were surprisingly helpful in guiding us through the process of getting the throttling issue resolved.

The Broader Context

Outside of this incident, the tech world was buzzing with debates about cloud versus colo. Some argued that moving to the cloud would save money and reduce infrastructure headaches, while others believed that colocation offered more control and reliability. The economic downturn had also put pressure on budgets, leading many companies to reconsider their IT strategies.

For us, the decision wasn’t just a matter of technology; it was a balancing act between cost, performance, and risk management. As we move forward, I think we’ll lean more towards hybrid solutions—leveraging cloud services for scalability while maintaining local infrastructure for critical applications where reliability is paramount.

Final Thoughts

As September 14, 2009, fades into memory, it’s clear that the tech industry was navigating uncharted waters. Layoffs were a constant concern, and everyone was trying to figure out how to weather the storm. For me, this day underscored the importance of robust infrastructure and preparedness for unexpected challenges.

The EC2 incident taught us valuable lessons about vigilance and proactive planning. It also reinforced my belief that in tech, you can never be too prepared or too diligent when it comes to disaster recovery and failover strategies.

That’s where I left things this afternoon—ready to face the next challenge with a bit more resilience and a solid plan in hand.