Difference between metrics and logs
WHAT IT TESTS: observability fundamentals. OUTLINE: metrics are aggregated numeric time series good for trends and alerting; logs are discrete timestamped event records good for detailed root-cause analysis.
WHAT IT TESTS: whether you understand the complementary roles of the observability pillars. ANSWER OUTLINE: metrics are numeric measurements aggregated over time, like latency percentiles, error rate, or CPU, cheap to store and ideal for dashboards, trends, and alerting on the question of what is happening. Logs are discrete, timestamped, often detailed records of individual events, ideal for the why and root-cause investigation.
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- #observability
- #metrics
- #logs
- #monitoring
- #debugging
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