Warning: PDO::__construct(): php_network_getaddresses: getaddrinfo failed: Name or service not known in /app/includes/database/database.inc on line 321 Error | Drupal

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Error message

  • Warning: PDO::__construct(): php_network_getaddresses: getaddrinfo failed: Name or service not known in DatabaseConnection->__construct() (line 321 of /app/includes/database/database.inc).
  • Warning: PDO::__construct(): php_network_getaddresses: getaddrinfo failed: Name or service not known in DatabaseConnection->__construct() (line 321 of /app/includes/database/database.inc).
  • Warning: PDO::__construct(): php_network_getaddresses: getaddrinfo failed: Name or service not known in DatabaseConnection->__construct() (line 321 of /app/includes/database/database.inc).
  • Warning: PDO::__construct(): php_network_getaddresses: getaddrinfo failed: Name or service not known in DatabaseConnection->__construct() (line 321 of /app/includes/database/database.inc).
  • PDOException: SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Name or service not known in lock_may_be_available() (line 167 of /app/includes/lock.inc).
  • Warning: PDO::__construct(): php_network_getaddresses: getaddrinfo failed: Name or service not known in DatabaseConnection->__construct() (line 321 of /app/includes/database/database.inc).