update backend stuck/stall

backend/src/config/database.ts

@@ -14,7 +14,7 @@ const poolConfig: PoolConfig = {
   database: environment.database.name,
   user: environment.database.user,
   password: environment.database.password,
-  max: 20, // Maximum number of clients in the pool
+  max: 30, // Maximum number of clients in the pool
   idleTimeoutMillis: 30000, // Close idle clients after 30 seconds
   connectionTimeoutMillis: 5000, // Return an error if connection takes longer than 5 seconds
 };
@@ -26,6 +26,17 @@ pool.on('error', (err) => {
   logger.error('Unexpected error on idle database client', err);
 });
 
+// Log pool exhaustion warnings every 60s (only when requests are waiting)
+setInterval(() => {
+  if (pool.waitingCount > 0) {
+    logger.warn('DB pool pressure detected', {
+      total: pool.totalCount,
+      idle: pool.idleCount,
+      waiting: pool.waitingCount,
+    });
+  }
+}, 60_000).unref();
+
 // Test database connection
 export const testConnection = async (): Promise<boolean> => {
   try {

backend/src/config/httpClient.ts

@@ -0,0 +1,11 @@
+import axios from 'axios';
+import * as http from 'http';
+import * as https from 'https';
+
+const httpClient = axios.create({
+  timeout: 10_000,
+  httpAgent:  new http.Agent({  keepAlive: true, maxSockets: 20 }),
+  httpsAgent: new https.Agent({ keepAlive: true, maxSockets: 20 }),
+});
+
+export default httpClient;