MySQL Error: 2002:php_network_getaddresses: getaddrinfo failed: Name or service not known for query  

MySQL Error: 2002:php_network_getaddresses: getaddrinfo failed: Name or service not known for query SET NAMES utf8 

MySQL Error: 2002:php_network_getaddresses: getaddrinfo failed: Name or service not known for query SET wait_timeout=36000 

MySQL Error: 2002:php_network_getaddresses: getaddrinfo failed: Name or service not known for query SET interactive_timeout=36000