Mastering the Art of Software Troubleshooting in Complex Systems

Where debugging in the ‘good old days’ of programming used to be ‘cast out’ and ‘taken out,’ today, it has developed into an enormous problem space,

with many interconnected network systems, diverse infrastructures and many complementary service arrays to manage the entire network of the entire world.

When debugging a code in this age, it’s not enough to merely fix the immediate cause, as one will now need job training and an ‘in the zone’ attitude to tackle some of these systemic issues!

Take a look at some of the crucial skill sets that we think is necessary when you decide to make debugging a part of your role.

Know Your System Before You Troubleshoot it

To avoid getting outright bonkers while you try to fix a thing you can’t grasp; make sure you fully understand the functions of each piece, its behavior, and its response to changes in your system so that you’re chasing a cause and not just an effect.

Replicate The Bug, Repeatedly

Any solution you put forth should be tested, if not only something you can reliably recreate; if you cannot reliably recreate the bug, it’ll be difficult to even realize you’ve “fully fixed” it, let alone debug it to the nth degree.

The extra time and effort put into trying to replicate bugs reliably will pay dividends for you down the line!

Take The Guesswork Out Of The equation

With so many applications, systems and other programs interconnected and interdependent on each other, there are many opportunities to resort to sheer guesswork to fix bugs,

but you’ll quickly be disproven. Logically and systematically remove each possible explanation for your bug until there is one logical conclusion, thus preventing further assumption.

Sift Through The Data

Logs logs logs and all that it comes down to! When a bug appears, your log files are an irrefutable record that proves what you did,

when you did it and whether or not the code responded correctly thus providing you with irrefutable proof of where your errors occurred, perhaps long before the more “code” driven “mind” in your team may even glance in that direction!

Focus On The Cause Not Just The Symptom

When bugs occur you often notice a “symptom” of the failure before seeing the true cause. The effects of the bug may cause disruptions in several parts of your system.

However, you’ll soon encounter more bug-related issues if you concentrate on the symptoms instead of the “cause” itself!

Use The Right Tools

While many programs have debugging software integrated within them; there are dozens of third party programs from buggers to log aggregators to tracing software, all readily available, that are ready to make your life easy and assist in your complex debugging endeavors.

Investing time and energy into the tools that are most suited for your needs can provide an immeasurable advantage.

Collaborate and Share Information with your teammates

Many modern software solutions have numerous disparate parts working in conjunction with each other; therefore, there will be many instances when you won’t have access to all of the information needed.

In such situations, effectively communicate with members of other teams and explain what you know, what you’ve ruled out, and what information you’ve discovered in order to get to the problem and solve it more quickly.

Keep Logs Of All Your Work Efforts

Regardless of whether the fix or solution you’ve come up with worked, your records will prove incredibly helpful to the rest of your team. Keep a detailed account of everything you do,

try and learn when trying to resolve bugs so that future teammates or other personnel may utilize your knowledge to troubleshoot similar bugs and know what solutions have already been tried!

Develop a ‘Hunch’ for Failure modes

As you gain more experience, you’ll develop a ‘hunch’ for which areas or systems are most prone to fail, and which processes and modules are most likely to experience errors.

While not taught in any formal setting, such a intuition can assist you when trying to resolve problems and debugging.

Leverage Incident Learnings

Each bug provides a unique opportunity to glean valuable insights that can lead to significant improvements to system architecture, designs and operations,

ensuring future bugs are proactively avoided or at least managed in a more efficient way.

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