edge infrastructureadvancedReddit r/ExperiencedDevs thread with 400+ upvotesMAX
Connection Pool Exhaustion Under Serverless Autoscaling : Deploy Atomicity and Instant Rollback at the Edge
TypeScriptPostgreSQLPgBouncerAWS Lambda
Problem Breakdown
The reliability defect is deploy non-atomicity: edge deploys propagate across POPs asynchronously, so for a propagation window users receive a mix of old and new code and data depending on which instance serves them. Serverless functions scale to hundreds of concurrent instances, each opening its own database connectio…
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