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CloudWatch Logs Insights Developer

April 5, 2026

Log Analytics for Developers

Query petabytes of logs with SQL-like syntax.

Common Queries

Lambda error analysis:
fields @timestamp, @lambda.functionName
| filter @level = "ERROR"
| stats count(*) by @lambda.functionName

Duration percentiles:
fields @duration
| stats p95(@duration) by bin(5m)

API Gateway 5xx errors:
filter @status like /5/
| stats count(*) by @requestId

Developer Features

Live Tail for real-time logs
Log-based CloudWatch alarms
Subscription filters to Kinesis
Cross-account log group access

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