Fatal error: Uncaught exception 'CredisException' with message 'Connection to Redis failed after 2 failures.Last Error : (0) php_network_getaddresses: getaddrinfo failed: System error' in /var/www/html/lib/Credis/Client.php:443 Stack trace: #0 /var/www/html/lib/Credis/Client.php(439): Credis_Client->connect() #1 /var/www/html/lib/Credis/Client.php(725): Credis_Client->connect() #2 /var/www/html/lib/Credis/Client.php(599): Credis_Client->__call('select', Array) #3 /var/www/html/lib/Cm/Cache/Backend/Redis.php(135): Credis_Client->select(1) #4 /var/www/html/lib/Zend/Cache.php(153): Cm_Cache_Backend_Redis->__construct(Array) #5 /var/www/html/lib/Zend/Cache.php(94): Zend_Cache::_makeBackend('Mage_Cache_Back...', Array, true, true) #6 /var/www/html/app/code/core/Mage/Core/Model/Cache.php(137): Zend_Cache::factory('Varien_Cache_Co...', 'Mage_Cache_Back...', Array, Array, true, true, true) #7 /var/www/html/app/code/core/Mage/Core/Model/Config.php(1354): Mage_Core_Model_Cache->__construct(Array) #8 /var/www/html/app/Mage.php(463): in /var/www/html/lib/Credis/Client.php on line 443