Answer:
During my previous internship at XYZ company, I faced a complex issue in the production environment. One of our backend services was reporting unusual behavior, where it kept crashing intermittently. I was assigned to debug the issue and find the root cause.To resolve the issue, I followed the below approach:

• Firstly, I started by analyzing the server logs to understand the pattern of service crashes and errors logged.
• Next, I looked at the codebase and the recent changes/updates to the service.
• I also consulted with other team members to understand if they had observed similar issues or had any suggestions on how to proceed.
• After analyzing the server logs, I identified a specific error message that could have been the root cause.
• I then isolated the code segment responsible for the error and started testing it in a local environment using different inputs.
• This helped me reproduce the issue and find a fix that involved changing a timeout value in a configuration file.
• After applying the fix, I monitored the service in production for a few days to ensure it was stable and performing as expected.

By taking a systematic approach and collaborating with the team, I was able to debug the issue and resolve it in a timely manner, minimizing any potential impact on our users.Citations:

• For analyzing server logs, I referred to the article "Debugging Node.js code in production" by Rising Stack.
• For collaborating with team members, I followed the tips shared in the article "The Art of Debugging" by Cindy Sridharan.
• For monitoring the service in production, I used Datadog, a popular monitoring tool used by many companies including Doordash.