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Fix AWS Lambda Timeouts, Cold Starts and "Task timed out" Errors

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Self-Hosting & Infra intermediate 7 min read $0.01 Updated 2026-10-19

Troubleshooting AWS Lambda performance: reading REPORT lines and Init duration, timeout and memory settings, unclosed connections and event loop waits, VPC and NAT networking, SDK and database connections reuse, provisioned concurrency, package size, and API Gateway limits.

Lambda reports "Task timed out after N seconds" or responds slowly after idle periods. Find what blocks (VPC, network calls, init code), tune memory and timeout, and reduce cold start time.

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#aws#lambda#serverless#timeouts#cold-start

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