Google Professional Cloud DevOps Engineer Question 128
Select 3Google Cloud PlatformYour organization has deployed a new application on Google Cloud, and users are reporting intermittent issues with high latency and errors. You want to analyze the logs to identify the root cause. Which steps should you take using Cloud Logging to efficiently diagnose the issue?
- A
Use the Logs Explorer to filter logs by severity levels such as ERROR and WARNING.
- B
Enable debug logging for all services in the application and analyze the resulting logs.
- C
Create a custom log-based metric to track the frequency of specific error messages.
- D
Use the Trace Viewer to correlate traces with logs for deeper insights.
- E
Set up an alerting policy based on log-based metrics to monitor for similar issues in the future.
Show answer and explanation
Correct answers: A, C, E
Explanation
To diagnose application issues using Cloud Logging, it is essential to filter logs by severity to find critical errors and warnings. Creating log-based metrics allows deeper analysis of error trends, and setting up alerting policies based on these metrics helps in proactive monitoring. While enabling debug logging and using the Trace Viewer can be useful in specific scenarios, they are not the most efficient first steps for general log analysis in this case.
- A. Correct.
Correct: Filtering logs by severity helps you quickly narrow down the logs to identify critical issues like errors or warnings.
- B. Incorrect.
Incorrect: Enabling debug logging for all services can generate a large volume of logs, which might make it harder to isolate the issue and could increase costs unnecessarily. It is better to focus on targeted log analysis first.
- C. Correct.
Correct: Creating log-based metrics allows you to quantify the occurrence of specific issues and can help in diagnosing trends or patterns in the errors.
- D. Incorrect.
Incorrect: While the Trace Viewer is useful for performance analysis and distributed tracing, the question specifically focuses on analyzing logs, so this is not the best approach here.
- E. Correct.
Correct: Setting up alerting policies based on log-based metrics ensures proactive monitoring and helps prevent recurrence of similar issues.