Serverless Uptime Strategy Without Cold Start Surprises
Keep functions responsive with warmers, retries, and observability.
By Jordan LeeProduct Manager•Published November 15, 2025•5 min read
Watch limits
Monitor concurrency, throttles, and timeouts per function.
Alert early on retries that climb after deployments.
Warm the hot paths
Schedule warmers for login and checkout functions.
Use provisioned capacity for peak windows.
Serverless essentials
- Cold start tracking
- Dependency health checks
- Fallback paths to queues
Connect to SLOs
Tie function level errors to customer facing SLIs.
Publish status updates when retries risk SLA breach.
Serverless uptime depends as much on downstream services as on code.
Article stats
- Author: Jordan Lee
- Role: Product Manager
- Published: November 15, 2025
- Reading time: 5 min
Tags
#serverless#uptime#cold starts
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