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Answer: Roll back the experimental canary release.
The question describes a scenario where a canary release of a new feature is causing a spike in 500 errors and increased latency, negatively impacting users. The immediate priority is to minimize the negative impact on users. Option A, rolling back the experimental canary release, is the most direct and effective action to stop the negative impact quickly. While options B, C, and D are important steps in the incident response and postmortem process, they do not address the immediate need to stop the user impact as quickly as option A does. Therefore, the correct answer is A.
Author: LeetQuiz Editorial Team
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You are conducting an experiment to evaluate user reception of a new feature in a web application. Shortly after deploying the feature as a canary release, you observe a sudden increase in 500 errors and higher latency in your monitoring reports. To quickly reduce the negative impact on users, what is the first action you should take?
A
Roll back the experimental canary release.
B
Start monitoring latency, traffic, errors, and saturation.
C
Record data for the postmortem document of the incident.
D
Trace the origin of 500 errors and the root cause of increased latency.
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