Initial commit

lib/connection-monitor.ts

@@ -0,0 +1,45 @@
+import { getPoolStats } from "./database"
+
+let monitoringInterval: NodeJS.Timeout | null = null
+
+export function startConnectionMonitoring() {
+  if (monitoringInterval) {
+    return // Already monitoring
+  }
+
+  console.log("Starting database connection monitoring...")
+
+  monitoringInterval = setInterval(() => {
+    const stats = getPoolStats()
+    if (stats) {
+      const utilizationRate = (stats.totalConnections - stats.freeConnections) / stats.connectionLimit
+
+      console.log(
+        `DB Pool Stats: ${stats.totalConnections}/${stats.connectionLimit} total, ${stats.freeConnections} free, ${stats.acquiringConnections} acquiring (${Math.round(utilizationRate * 100)}% utilization)`,
+      )
+
+      // Warn if utilization is high
+      if (utilizationRate > 0.8) {
+        console.warn("⚠️  High database connection utilization detected!")
+      }
+
+      // Warn if many connections are waiting
+      if (stats.acquiringConnections > 3) {
+        console.warn("⚠️  Many connections waiting for pool!")
+      }
+    }
+  }, 30000) // Every 30 seconds
+}
+
+export function stopConnectionMonitoring() {
+  if (monitoringInterval) {
+    clearInterval(monitoringInterval)
+    monitoringInterval = null
+    console.log("Stopped database connection monitoring")
+  }
+}
+
+// Auto-start monitoring in production
+if (process.env.NODE_ENV === "production") {
+  startConnectionMonitoring()
+}