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edge infrastructureintermediateReddit r/ExperiencedDevs thread with 400+ upvotesMAX

Connection Pool Exhaustion Under Serverless Autoscaling : Burst Absorption Without Origin Collapse

TypeScriptPostgreSQLPgBouncerAWS Lambda

Problem Breakdown

The core mismatch is a capacity contract violation: the edge layer is provisioned for steady-state traffic while the origin behind it is provisioned for a small fraction of that, and any mechanism that concentrates requests onto the origin breaks the contract silently. Serverless functions scale to hundreds of concurre…

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