SQLSTATE[HY000] [2003] Can't connect to MySQL server on 'sql-master' (113)

#0 /home/sites_web/client/www2.loewe.com/www/lib/Zend/Db/Adapter/Pdo/Mysql.php(96): Zend_Db_Adapter_Pdo_Abstract->_connect()
#1 /home/sites_web/client/www2.loewe.com/www/lib/Varien/Db/Adapter/Pdo/Mysql.php(320): Zend_Db_Adapter_Pdo_Mysql->_connect()
#2 /home/sites_web/client/www2.loewe.com/www/lib/Zend/Db/Adapter/Abstract.php(459): Varien_Db_Adapter_Pdo_Mysql->_connect()
#3 /home/sites_web/client/www2.loewe.com/www/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('SET NAMES utf8', Array)
#4 /home/sites_web/client/www2.loewe.com/www/lib/Varien/Db/Adapter/Pdo/Mysql.php(428): Zend_Db_Adapter_Pdo_Abstract->query('SET NAMES utf8', Array)
#5 /home/sites_web/client/www2.loewe.com/www/app/code/core/Mage/Core/Model/Resource.php(169): Varien_Db_Adapter_Pdo_Mysql->query('SET NAMES utf8')
#6 /home/sites_web/client/www2.loewe.com/www/app/code/core/Mage/Core/Model/Resource.php(110): Mage_Core_Model_Resource->_newConnection('pdo_mysql', Object(Mage_Core_Model_Config_Element))
#7 /home/sites_web/client/www2.loewe.com/www/app/code/core/Mage/Core/Model/Resource.php(296): Mage_Core_Model_Resource->getConnection('core_read')
#8 /home/sites_web/client/www2.loewe.com/www/app/code/core/Mage/Core/Model/Cache.php(256): Mage_Core_Model_Resource->getTableName('core/cache')
#9 /home/sites_web/client/www2.loewe.com/www/app/code/core/Mage/Core/Model/Cache.php(295): Mage_Core_Model_Cache->getDbAdapterOptions(Array)
#10 /home/sites_web/client/www2.loewe.com/www/app/code/core/Mage/Core/Model/Cache.php(238): Mage_Core_Model_Cache->_getTwoLevelsBackendOptions(Array, Array)
#11 /home/sites_web/client/www2.loewe.com/www/app/code/core/Mage/Core/Model/Cache.php(132): Mage_Core_Model_Cache->_getBackendOptions(Array)
#12 /home/sites_web/client/www2.loewe.com/www/app/code/core/Mage/Core/Model/Config.php(1348): Mage_Core_Model_Cache->__construct(Array)
#13 /home/sites_web/client/www2.loewe.com/www/app/Mage.php(463): Mage_Core_Model_Config->getModelInstance('core/cache', Array)
#14 /home/sites_web/client/www2.loewe.com/www/app/code/local/Mage/Core/Model/App.php(401): Mage::getModel('core/cache', Array)
#15 /home/sites_web/client/www2.loewe.com/www/app/code/local/Mage/Core/Model/App.php(295): Mage_Core_Model_App->_initCache(Array)
#16 /home/sites_web/client/www2.loewe.com/www/app/code/local/Mage/Core/Model/App.php(337): Mage_Core_Model_App->baseInit(Array)
#17 /home/sites_web/client/www2.loewe.com/www/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#18 /home/sites_web/client/www2.loewe.com/www/index.php(88): Mage::run('', 'store')
#19 {main}