Question

我正在编写一个将我的数据库模式恢复为RDS的lambda。我已经在我已经在aws lambda控制台上传的zip中打包了节点模块。这边有什么问题？我哪里错了？

这是我的lambda函数

var  MysqlTools= require('mysql-tools');
var endpoint = process.env.MYSQLDB_HOST;
var username = process.env.MYSQLDB_USER;
var database = process.env.MYSQLDB_DATABASE;
var password = process.env.MYSQLDB_PASSWORD;

exports.restore = (event,context)=>{
  var tool = new MysqlTools();
  tool.restoreDatabase({host: endpoint, user: username, password:password, sqlFilePath: 'epmoliteDump.sql', database:  database
  }, function (error, output, message) {
     if (error instanceof Error) {
        console.log(error);
     } else {
        console.log(output);
        console.log(message);
     }
  });
}

Cloud watch错误日志

START RequestId：303cd306-9ed3-11e7-874e-a5a3ce668160版本：$ LATEST 2017-09-21T13：45：54.531Z 303cd306-9ed3-11e7-874e-a5a3ce668160 {错误：命令失败：mysql -h me10uo7cwmpj.c8icuw7t60la.us-east-1.rds.amazonaws.com -u xxxxxx -pxxxxxx eLite_DB
at ChildProcess.exithandler (child_process.js:204:12)
at emitTwo (events.js:106:13)
at ChildProcess.emit (events.js:191:7)
at maybeClose (internal/child_process.js:886:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5)   killed: false,   code: 127,  
signal：null，cmd：＆＃39; mysql -h me10uo7cwmpj.c8icuw7t60la.us-east-1.rds.amazonaws.com -u xxxxxx -pxxxxxx eLite_DB

Answer 1

您无法使用mysql-tools，因为它希望您在$ PATH中拥有mysql实用程序，并且似乎无法在mysql-tools中配置它。

但是，您可以在Lambda包中包含mysql二进制文件，前提是它是为匹配的Amazon Linux版本构建的。

假设二进制文件的位置位于<root directory of lambda function>/bin/mysql，您可以像这样更改代码：

const exec = require('child_process').exec
const endpoint = process.env.MYSQLDB_HOST;
const username = process.env.MYSQLDB_USER;
const database = process.env.MYSQLDB_DATABASE;
const password = process.env.MYSQLDB_PASSWORD;

exports.restore = (event, context) => exec(`${process.env['LAMBDA_TASK_ROOT']}/bin/mysql -u ${username} -p${password} -h ${endpoint} ${database} < epmoliteDump.sql`, function (error, output, message) {
   if (error instanceof Error) {
      console.log(error);
   } else {
      console.log(output);
      console.log(message);
   }
});

Lambda函数失败说＆＃34; mysql＆＃34;即使安装了节点模块，也找不到命令

1 个答案: