Revenge of the Code Gremlins

The year was 2005. I should have been at the movies watching Star Wars Episode III (Revenge of the Sith), but alas, I wasn’t. Instead, I was tucked away in a Tokyo server farm, chasing ghosts… code gremlins to be precise.

We’d spent months crafting an elegant system for Lloyds TSB, a banking giant. Our creation – an ETL (that’s “Extract, Transform, Load” for all you non-nerds) – was the key to automating their foreign exchange trading between their AS400 machines on the backside, and the slick web UX we had on the front. The code? Rock solid. Tested it every which way. Foolproof, so we thought.

Enter the VIP clients. We started a pilot program, letting those lucky few test the system in real-time. Suddenly, every night at 3 AM (Japan time, ouch), the servers started acting like they’d drunk one too many energy drinks. They’d crash and, in the resulting chaos, financial transactions would be recorded twice in their online ledgers. Duplicate money! Not an effect most bankers enjoy, understandably, and led to a ton of triage every morning re-syncing those displays. But, the VIPs were used to beta testing things and didn’t mind feeling a tad less poor for the 30 minutes or rescue during the early morning hours.

Now, the rational part of my brain knew it wasn’t some mischievous gremlin with a vendetta against spreadsheets. The code was good, the server itself healthy. So, we dug deeper. Our CI/CD pipeline, all those smooth automated deployments, held the key.

You see, Jenkins (our digital butler) had a hidden preference, a default setting buried deep within. “Ah-ha!” we thought. It would casually restart the Apache server process on deployment. Nothing drastic, mind you, just a routine spring cleaning. Except… someone (definitely not me!) had made our server’s “watchdog” process just a tad too enthusiastic.

This watchdog, meant to faithfully restart services when they failed, got impatient. The service restart took a few minutes, and our furry friend had the attention span of a caffeinated squirrel. After 30 seconds? Server reboot! Chaos.

All this because the server’s babysitter was trigger-happy. Those weren’t code gremlins – they were code toddlers, throwing a tantrum because their digital building blocks were briefly knocked over. After that… let’s just say Lloyds TSB got a whole lot less mysterious double-transactions to sort out.

Lessons learned? Big problems in systems are rarely hulking monstrosities. More often, it’s those sneaky, fiddly bits – the forgotten defaults, the impatient timeouts, the little misunderstandings between well-meaning systems.

Welcome to the Dark Side

Now, things have changed. With AI stepping into the coding process, maybe, just maybe, such pesky gremlins will become extinct. Imagine an AI co-pilot that can not only spot potential errors but also understands the subtle ways systems interact. It could flag those mismatched timeouts or hidden defaults before they create havoc. AI-powered testing could simulate thousands of scenarios that human teams just don’t have the bandwidth for.

The AI revolution in coding isn’t just about finding bugs after they’re written. Here’s what it can help with right now:

• More robust code from the start: AI models can learn from massive code repositories, suggesting better patterns and cleaner ways to solve problems.

• Eliminate poor coding practices: Say goodbye to those messy habits – AI tools can enforce best practices and coding standards as you type.

• Less error-prone syntax: Integrated into your IDE, AI can highlight potential typos, incorrect usage, and general ‘code smells’ in real-time. Plus instead of hot-keying snippets, you can hot-key AI code generation.

Of course, AI won’t eliminate bugs entirely. There’s always the potential for those ‘unknown unknowns’ to creep in. But the hope is that these intelligent tools will at least banish the gremlins of silly oversights and routine miscommunication.

QUESTION TIME:

…But then again, I’m no fortune teller. So, tell me, fellow code warrior, what’s the silliest, most unexpectedly troublesome “code gremlin” you’ve ever slain?