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Structured Logging Best Practices
4.1Why Structured Logging Matters for QAUnstructured logs are human-readable but machine-hostile. When a production incident occurs at 3 AM, you need to query logs…4.2Unstructured vs. Structured LoggingThe structured version enables queries like: - "Show all timeout errors in the last hour for the payment-service dependency" - "Count…4.3Implementing Structured Logging (Python)4.4Essential Fields for Every Log Entry4.5Logging Dos and Don'ts for Testability4.6Log-Based TestingStructured logs enable a powerful testing pattern: assert on log output to verify system behavior:4.7Log Aggregation Architecture4.8PII in Logs: A Testing ConcernQA architects must verify that production logs do not contain personally identifiable information (PII). Add automated PII detection to…