Connection to Redis setonus-stage-stca.rk70c0.0001.use1.cache.amazonaws.com:6379 failed after 2 failures.Last Error : (1) php_network_getaddresses: getaddrinfo failed: Name or service not known

#0 /var/www/html/andromeda/vendor/colinmollenhour/credis/Client.php(472): Credis_Client->connect()
#1 /var/www/html/andromeda/vendor/colinmollenhour/credis/Client.php(785): Credis_Client->connect()
#2 /var/www/html/andromeda/vendor/colinmollenhour/credis/Client.php(638): Credis_Client->__call('select', Array)
#3 /var/www/html/andromeda/app/code/community/Cm/Cache/Backend/Redis.php(415): Credis_Client->select(1)
#4 /var/www/html/andromeda/app/code/community/Cm/Cache/Backend/Redis.php(250): Cm_Cache_Backend_Redis->_applyClientOptions(Object(Credis_Client))
#5 /var/www/html/andromeda/lib/Zend/Cache.php(153): Cm_Cache_Backend_Redis->__construct(Array)
#6 /var/www/html/andromeda/lib/Zend/Cache.php(94): Zend_Cache::_makeBackend('Cm_Cache_Backen...', Array, true, true)
#7 /var/www/html/andromeda/app/code/core/Mage/Core/Model/Cache.php(123): Zend_Cache::factory('Varien_Cache_Co...', 'Cm_Cache_Backen...', Array, Array, true, true, true)
#8 /var/www/html/andromeda/app/code/core/Mage/Core/Model/Config.php(1356): Mage_Core_Model_Cache->__construct(Array)
#9 /var/www/html/andromeda/app/Mage.php(440): Mage_Core_Model_Config->getModelInstance('core/cache', Array)
#10 /var/www/html/andromeda/app/code/local/Mage/Core/Model/App.php(396): Mage::getModel('core/cache', Array)
#11 /var/www/html/andromeda/app/code/local/Mage/Core/Model/App.php(290): Mage_Core_Model_App->_initCache(Array)
#12 /var/www/html/andromeda/app/code/local/Mage/Core/Model/App.php(332): Mage_Core_Model_App->baseInit(Array)
#13 /var/www/html/andromeda/app/Mage.php(647): Mage_Core_Model_App->run(Array)
#14 /var/www/html/andromeda/index.php(89): Mage::run('stca', 'website')
#15 {main}