Question

我正在使用LoadPackage（...）调用SSIS包。

是否可以将此调用设为异步调用？

Answer 1

是的，请使用异步委托，如下所示：

http://msdn.microsoft.com/en-us/library/h80ttd5f.aspx

Answer 2

如果你只是想让它在后台运行，那么是的，你可以调整一个线程或调用一些T-SQL来动态创建一个作业（然后再删除它）。如果你想异步运行它并想要在完成时回调，那么我认为你很遗憾不幸。

Answer 3

您是否认为在后台线程上调用LoadPackage是合法的还是2）是否可能。对于＃1，我无法给出确定的答案，因为我没有使用SSIS框架。

然而＃2（只要＃1为真）肯定是可行的。恕我直言，你最好使用现有的框架，该框架的API旨在调用API的异步并等待结果。例如，使用Parellel Extensions 6月08日CTP，下面的代码就可以了。

using System.Threading.Tasks;
...
var future = Future.Create(()=>LoadPackage); // Starts loading the package
// Do other stuff
var package = future.Value;  // Wait for package load to complete and get the value

Answer 4

我通过异步WCF服务调用从我的UI（WPF）调用SSIS包。服务代码是：

public string ImportMarriageXML(bool isWakeUp, bool clearExistingMarriage)
{
    try
    {
        var dts = new Microsoft.SqlServer.Dts.Runtime.Application();

        using (var package = dts.LoadFromSqlServer(
            ServiceSettings.Settings.SSIS.ImportMarriages,
            ServiceSettings.Settings.SSIS.ServerIP,
            ServiceSettings.Settings.SSIS.UserID,
            ServiceSettings.Settings.SSIS.Password,
            null))
        {
            package.InteractiveMode = false;
            package.Connections["DB.STAGING"].ConnectionString = String.Format("{0};Provider={1};", DBSettings.ConnectionString(Core.Database.Staging), ServiceSettings.Settings.SSIS.Provider);

            var variables = package.Variables;
            variables["IsWakeUp"].Value = isWakeUp;
            variables["ClearExistingMarriage"].Value = clearExistingMarriage;
            variables["XmlDirectory"].Value = ServiceSettings.Settings.SSIS.Properties.XmlDirectory;

            if (package.Execute() == DTSExecResult.Failure)
            {
                // HACK: Need to refactor this at some point. Will do for now.
                var errors = new System.Text.StringBuilder();
                foreach (var error in package.Errors)
                    errors.AppendFormat("SubComponent: {0}; Description: {1}{2}", error.SubComponent, error.Description, Environment.NewLine);
                throw new ApplicationException(errors.ToString());
            }

            return package.Connections["Text Logging"].ConnectionString;
        }
    }
}

客户端代码的（部分）如下：

private void InvokeLoadMarriages()
{
    integrationServicesServiceClient.BeginImportMarriageXML(false, OnEndImportMarriageXML, null);
}

private void OnEndImportMarriageXML(IAsyncResult asyncResult)
{
    view.InvokeDisplayResults(integrationServicesServiceClient.EndImportMarriageXML(asyncResult));
}

BeginImportMarriageXML＆amp; EndImportMarriageXML是代理类中生成的异步操作。

异步调用SSIS包

4 个答案: