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Can you explain the process you would follow to resolve a critical production issue within the backend infrastructure, highlighting the tools and techniques you would leverage to quickly identify and solve the issue?
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Process for Resolving Critical Production Issues in Backend Infrastructure
As an engineering manager at MX Player, I understand the importance of resolving critical production issues in a timely manner. To effectively handle such situations, I would follow these steps:
Identify the issue: The first step would be to gather as much information as possible about the issue. This includes understanding the symptoms and the impact on the system. To do this, I would use monitoring and logging tools such as Prometheus and Grafana to collect metrics and analyze the system's behavior.
Escalate the issue: Depending on the severity of the issue, I would escalate it to the relevant stakeholders. This includes key team members, such as DevOps and QA, and upper management. Communicating the issue clearly and concisely is crucial to ensure everyone understands the situation's impact and what is expected of them.
Analyze the issue: Once the issue has been identified and escalated, I would analyze it in detail to determine the root cause. This involves reviewing relevant code, logs, and config files to understand what went wrong and why. I would leverage debugging tools and techniques such as Xdebug and error tracking solutions like Sentry to identify the root cause swiftly.
Resolve the issue: With the root cause identified, I would develop a resolution strategy. This includes identifying relevant code changes and deploying them to the environment through continuous integration and deployment (CI/CD) tools like Jenkins. I would also conduct a thorough regression test to ensure that the fix does not introduce new issues.
Document the issue: After the resolution, I would document the troubleshooting process and the actions taken to resolve the issue. This information is essential for the future and can help prevent similar issues from occurring.
This process is based on best practices for incident management and has been proven to be effective in handling critical production issues. Employing the appropriate tools like Prometheus, Grafana, Xdebug, Sentry, and Jenkins, helps immensely in quickly identifying and fixing the issues.