Index: core/kernel/tests/bootstrap.php
===================================================================
--- core/kernel/tests/bootstrap.php
+++ core/kernel/tests/bootstrap.php
@@ -14,6 +14,7 @@
 
 $start = microtime(true);
 
+define('CRON', 1); // To avoid db load balancer usage.
 define('DBG_ZEND_PRESENT', 1);
 define('INDEX_FILE', 'index.php');
 define('FULL_PATH', realpath(__DIR__ . '/../../..'));