SQLSTATE[HY000] [2002] Connection refused when using persistent PDO connections in Phalcon
Intermittent Connection Pool Exhaustion When Phalcon is configured to use persistent PDO connections (e.g., 'persistent' => true ), high‑concurrency workloads can trigger SQLSTATE[HY000] [2002] Connection refused errors as the underlying database reaches its maximum connection limit. The framework does not expose a parameter to cap the number of persisten
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