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Checkout is failing with 'connection pool exhausted', but the database CPU sits at 10 percent. Where is the problem?

An idle database with a starved application is the tell. The connections are held, not used. More database capacity does not release leaked connections.

Updated Sep 2026 · Grounded in researched DevOps, SRE and platform engineering interview loops, written to a senior-engineer editorial bar, and never padded to hit a word count.

An idle database with a starved application is the tell. The connections are held, not used. More database capacity does not release leaked connections.

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