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Home » Blogs » Code Ownership Is Key to Accelerate Debugging

debugging code ownership Linux bugs

Code Ownership Is Key to Accelerate Debugging

By: James Smith on June 21, 2021 Leave a Comment

App stability is a fundamental part of every app experience. Broadly speaking, app stability is a measurement of the number of total app sessions that are crash-free or the percentage of daily active users who do not experience an error. End users have little patience for apps that crash or fail. Every application, whether it’s B2B- or B2C-oriented, suffers some level of instability and fails occasionally. Ideally, organizations should aim for app stability scores close to 99.999%. To achieve that quality of performance, software engineers must be fast and efficient in fixing coding errors that are frequently the cause of app crashes.

But that’s a major challenge using the traditional approach to debugging. Most major applications have a wide variety of engineers, including completely separate engineering teams, all working from a single code base. Each team typically uses their own unique issue tracker to monitor errors, such as Jira or Asana. In addition, teams typically use their own channel in a collaboration platform to communicate internally, like Slack or Microsoft Teams. This causes silos between the various engineering teams, limiting communication and visibility between each team.

AppSec/API Security 2022

When an error occurs, all the engineering teams are alerted about the bug through their own issue trackers. From there, they figure out where the error occurred in the code and who is specifically responsible for fixing it. This requires each team to manually review code as they try to locate the bug, which wastes precious time as engineers duplicate one another’s efforts. Because teams are using different communication channels, there’s little to no collaboration or alignment between the various engineering teams during this process. Overall, this approach to debugging is a cumbersome and inefficient undertaking that slows the process of repairing apps, ultimately hurting the end user experience.

Consider a real-world example. Suppose your team is one of a dozen engineering teams, all working together on an application that creates a mobile game. Perhaps your team works on maintaining the in-app purchases feature set, while another works on the account setup flow and yet another team works on character customization features. If a bug suddenly crashes the app for a significant portion of users (resulting in a clear drop in the app stability score), every team will receive an error alert through their issue tracker notifying them that a coding issue has caused the application to fail. No one will know if their team’s code was responsible. As a result, each team is forced to go through the laborious process outlined above. If it turns out that the bug was in the character customization code, then the teams responsible for in-app purchases and account setup have wasted valuable time and resources searching for the error.

The only team that should be notified of a bug is the one responsible for the part of the code a bug originates from. The emerging concept of code ownership makes this possible, providing a faster and easier approach to debugging. With this method, organizations create code owner files to determine which engineers or teams are responsible for each section of code, feature flags or experiments. If section X within the code fails, then team X will be responsible for addressing it. In the example above, only the team responsible for the code associated with character customization would need to find and fix the bug.

This makes it much easier to respond to application issues and allocate the correct resources to remedy those issues. For end users, code ownership means that malfunctioning apps will be fixed faster, improving the customer experience and boosting business metrics. From an internal POV, engineering teams become far more cost- and time-efficient, freeing developers to take on new projects they actually enjoy working on.

A culture of code ownership also helps engineering teams adopt other best practices for debugging. One major example is error prioritization. Not all bugs cause significant app instability and need to be fixed right away. When a team can ignore errors unrelated to their code, they have more time to fully hone in on and evaluate the errors they are responsible for. With this focused approach, they can establish metrics determining if they need to fix a bug immediately or if it can wait.

Simply put, code ownership eliminates the confusion and guesswork associated with the process of debugging, allowing engineering teams to easily identify, own, prioritize and remedy bugs. Embracing code ownership is critical for companies to improve app stability, which is the most fundamental measure of an app’s health. This ties directly into business outcomes, because app stability is closely associated with customer retention, customer growth, sales and revenue. By speeding up debugging efforts, code ownership has a pronounced, positive impact on stability, boosting each of those metrics.

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Filed Under: Application Performance Management/Monitoring, Blogs, Continuous Delivery, Continuous Testing, DevOps Culture, DevOps Practice, Modern Incident and Change Management Tagged With: application stability, custom software development, debugging, SRE

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