Question

I have a ASP.NET web-application with a MySQL database behind.
My users wants to make a backup of their data when clicking on a button.
How should I do that?

I was thinking of using mysqldump to create a database and let the user download this file.
But is that the easiest way? And what about performance ? I have currently 250 users working an the webapplication at the same time. So when they all press the backup button … I don’t want to let my server hanging while creating the backup.

Does anyone have an idea?

Thx

Answer 1

You can try this tool: MySqlBackup.NET, which is an alternative to MySqlDump.

Official Site & Documentation > http://mysqlbackupnet.codeplex.com/

Backup & Download a MySQL Database

void Backup()
{
    string connection = "server=localhost;user=root;pwd=qwerty;database=test;";
    string fileOnDisk = HttpContext.Current.Server.MapPath("~/MyDumpFile.sql");
    // Example Result: C:\inetpub\wwwroot\MyDumpFile.sql
    string fileOnWeb = HttpContext.Current.Request.Url.GetLeftPart(UriPartial.Authority) 
                       + "/MyDumpFile.sql";
    // Example Result: http://www.mywebsite.com/MyDumpFile.sql

    // Backup MySQL Database
    MySqlBackup mb = new MySqlBackup(connection);
    mb.ExportInfo.FileName = fileOnDisk;
    mb.Export();

    // Download the file
    Response.ContentType = "text/plain";
    Response.AppendHeader("Content-Disposition", "attachment; filename=MyDumpFile.sql");
    Response.TransmitFile(fileOnDisk);
    Response.End();
} 

Restore a MySQL Database

void Restore()
{
    string connection = "server=localhost;user=root;pwd=qwerty;database=test;";
    string fileOnDisk = HttpContext.Current.Server.MapPath("~/MyDumpFile.sql");
    string fileOnWeb = HttpContext.Current.Request.Url.GetLeftPart(UriPartial.Authority) 
                       + "/MyDumpFile.sql";
    // Upload the file
    if (FileUpload1.HasFile)
    {
        FileUpload1.SaveAs(fileOnDisk);

        MySqlBackup mb = new MySqlBackup(connection);
        mb.ImportInfo.FileName = fileOnDisk;
        mb.Import();
        Response.Write("Import Successfully");
    }
}

From the above example, MySqlBackup.NET will create a file name MyDumpFile.sql (The exported MySQL database).
You can cache the file for 5 or 10 minutes. If any user wants to get the exported MySQL Backup File within 5 or 10 minutes from time of creation, the cache file will be transmitted for his/her to download. If more than 5 or 10 minutes, new cache file will be generated again.

I am one of the author of this tool.