define timeout

composer.json

@@ -26,7 +26,8 @@
     "require": {
         "php": "~7.1",
         "aws/aws-sdk-php": "^3.98",
-        "doctrine/dbal": "^2.7"
+        "doctrine/dbal": "^2.7",
+        "guzzlehttp/guzzle": "^6.2.1|^7.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.0"
@@ -43,5 +44,8 @@
     },
     "scripts": {
         "test": "phpunit tests"
+    },
+    "config": {
+        "sort-packages": true
     }
 }

src/RdsDataDriver.php

@@ -3,8 +3,10 @@
 namespace Nemo64\DbalRdsData;
 
 
+use Aws\Handler\GuzzleV6\GuzzleHandler;
 use Aws\RDSDataService\RDSDataServiceClient;
 use Doctrine\DBAL\Driver;
+use GuzzleHttp\Client;
 
 class RdsDataDriver extends Driver\AbstractMySQLDriver
 {
@@ -26,6 +28,12 @@ public function connect(array $params, $username = null, $password = null, array
             $options['credentials']['secret'] = $password;
         }
 
+        $options['http_handler'] = new GuzzleHandler(new Client([
+            // all calls to the data-api will time out after 45 seconds
+            // https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/data-api.html
+            'timeout' => 45,
+        ]));
+
         return new RdsDataConnection(
             new RDSDataServiceClient($options),
             $driverOptions['resourceArn'],