'致命错误：getaddrinfo ENOTFOUND' - node.js mysql lambda

Question

我想写一个node.js lambda函数，它将连接到AWS中的一个MYSQL RDS实例内的数据库并拉下一些示例记录，但我是得到上述错误。

我已经创建了可公开访问的RDS，并且还创建了与RDS相同的VPC下的lambda方法。我使用的代码如下：

var mysql=require('mysql'); //Require whatever connector you need. 

//console.log("beware of ", beware); 
var beware=1; //This is declared outside the handler: it is possible that its last value will be reused when we enter the function again. 

//This function will return a connection. Notice that it's declared outside 
//the handler, thus inside the container. It may be reused but I don't think 
//that matters because it is self-contained. 

function getConnectionCred() 
{ 
    var params={ 
     host  : '(myconnname).amazonaws.com:3306', 
     user  : 'username', 
     password : 'password', 
     database: 'database'}; 

    return mysql.createConnection(params); 
} 

//This is your handler. 
exports.handler=function(event, context) 
{ 
    //This is declared inside the handler: it is guaranteed to never be reused!. 
    var connection=getConnectionCred(); 

    var del = connection._protocol._delegateError; 
connection._protocol._delegateError = function(err, sequence){ 
    if (err.fatal) { 
    console.trace('fatal error: ' + err.message); 
    } 
    return del.call(this, err, sequence); 
}; 

    //Do things with your connection. 
    var query_string='SELECT * from table'; 

    connection.query(query_string, [beware], function(res, err){ 

     //Check for errors, disconnect and exit with failure. 
     if(err){ 
      console.log("Query failed", err); 
      connection.end(function(err){ 
       context.fail(0); 
      }); 
     } 
     //Disconnect and exit with success. 
     else{ 
      connection.end(function(err){ 

       if(err){ 
        console.log("Warning: disconnection failed" + err); 
       } 

       context.succeed(res); 
      }); 
     } 
    }); 
} 

如果有人能指出我得到这个错误的方向是正确的决定，将是真棒。

谢谢！

Answer 1

您已经在最后指定的主机端口号为：

host: '(myconnname).amazonaws.com:3306' 

删除:3306。