尽管设置了频率，Azure SQL Sync还是笔记本电脑上的资源消耗

Question

我们有一台运行在开发笔记本电脑上的SQL Server，并且我们希望部署多台笔记本电脑并使用Azure Sync将更改分发给每个用户。性能太慢，无法在当前应用程序中使用远程SQL数据库-这是一个单独的问题。速度并不重要，我不希望用户之间发生冲突。我将更新时间设置为12小时，并为赢得会员解决了冲突。

除了Microsoft SQL Data Sync 2.0 Windows服务进程持续消耗2％-5％的CPU并以大约80 kbps的速度连续流传输数据外，一切似乎都按预期进行。我担心笔记本电脑在野外时这会耗尽电池的电量。有更好的方法吗？

这是Azure数据库的资源利用率。我在某个时候停止了同步，以查看频率设置是否会自动重启（不会）。

Answer 1

您可以根据需要编写自己的同步应用程序。 This和this资源为您提供了很好的指导。在下面，您将看到一个示例应用程序。

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



using System.Data.SqlClient;

using Microsoft.Synchronization.Data.SqlServer;

using Microsoft.Synchronization.Data;

using Microsoft.Synchronization;



namespace SQLAzureDataSync

{

    class Program

    {

        public static string sqlazureConnectionString = "Server=[Your SQL Azure Server].database.windows.net;Database=AdventureWorksLTSQLAzure;User ID=[Your SQL Azure User Name]@[Your SQL Azure Server];Password=[Your SQL Azure Password];Trusted_Connection=False;Encrypt=True;";

        public static string sqllocalConnectionString = "Server=(local);Database=AdventureWorksLT2008;Trusted_Connection=True";

        public static readonly string scopeName = "alltablesyncgroup";



        static void Main(string[] args)

        {

            // Test if input arguments were supplied:

            if (args.Length == 0)

            {

                System.Console.WriteLine("Please enter an argument.");

                System.Console.WriteLine("Usage: SyncTest.exe -setup");

                System.Console.WriteLine("       SyncTest.exe -sync");

            }

            else if (args[0] == "-setup")

                Setup();

            else if (args[0] == "-sync")

                Sync();

        }



        public static void Setup()

        {

            try

            {



                SqlConnection sqlServerConn = new SqlConnection(sqllocalConnectionString);

                SqlConnection sqlAzureConn = new SqlConnection(sqlazureConnectionString);

                DbSyncScopeDescription myScope = new DbSyncScopeDescription(scopeName);



                DbSyncTableDescription Customer = SqlSyncDescriptionBuilder.GetDescriptionForTable("Customer", sqlServerConn);

                DbSyncTableDescription Product = SqlSyncDescriptionBuilder.GetDescriptionForTable("Product", sqlServerConn);



                // Add the tables from above to the scope

                myScope.Tables.Add(Customer);

                myScope.Tables.Add(Product);



                // Setup SQL Server for sync

                SqlSyncScopeProvisioning sqlServerProv = new SqlSyncScopeProvisioning(sqlServerConn, myScope);

                if (!sqlServerProv.ScopeExists(scopeName))

                {

                    // Apply the scope provisioning.

                    Console.WriteLine("Provisioning SQL Server for sync " + DateTime.Now);

                    sqlServerProv.Apply();

                    Console.WriteLine("Done Provisioning SQL Server for sync " + DateTime.Now);

                }

                else

                    Console.WriteLine("SQL Server Database server already provisioned for sync " + DateTime.Now);



                // Setup SQL Azure for sync

                SqlSyncScopeProvisioning sqlAzureProv = new SqlSyncScopeProvisioning(sqlAzureConn, myScope);

                if (!sqlAzureProv.ScopeExists(scopeName))

                {

                    // Apply the scope provisioning.

                    Console.WriteLine("Provisioning SQL Azure for sync " + DateTime.Now);

                    sqlAzureProv.Apply();

                    Console.WriteLine("Done Provisioning SQL Azure for sync " + DateTime.Now);

                }

                else

                    Console.WriteLine("SQL Azure Database server already provisioned for sync " + DateTime.Now);



                sqlAzureConn.Close();

                sqlServerConn.Close();

            }

            catch (Exception ex)

            {

                Console.WriteLine(ex);

            }

        }



        public static void Sync()

        {

            try

            {



                SqlConnection sqlServerConn = new SqlConnection(sqllocalConnectionString);

                SqlConnection sqlAzureConn = new SqlConnection(sqlazureConnectionString);

                SyncOrchestrator orch = new SyncOrchestrator

                {

                    LocalProvider = new SqlSyncProvider(scopeName, sqlAzureConn),

                    RemoteProvider = new SqlSyncProvider(scopeName, sqlServerConn),

                    Direction = SyncDirectionOrder.UploadAndDownload

                };

                Console.WriteLine("ScopeName={0} ", scopeName.ToUpper());

                Console.WriteLine("Starting Sync " + DateTime.Now);

                ShowStatistics(orch.Synchronize());



                sqlAzureConn.Close();

                sqlServerConn.Close();

            }

            catch (Exception ex)

            {

                Console.WriteLine(ex);

            }

        }



        public static void ShowStatistics(SyncOperationStatistics syncStats)

        {

            string message;



            message = "\tSync Start Time :" + syncStats.SyncStartTime.ToString();

            Console.WriteLine(message);

            message = "\tSync End Time   :" + syncStats.SyncEndTime.ToString();

            Console.WriteLine(message);

            message = "\tUpload Changes Applied :" + syncStats.UploadChangesApplied.ToString();

            Console.WriteLine(message);

            message = "\tUpload Changes Failed  :" + syncStats.UploadChangesFailed.ToString();

            Console.WriteLine(message);

            message = "\tUpload Changes Total   :" + syncStats.UploadChangesTotal.ToString();

            Console.WriteLine(message);

            message = "\tDownload Changes Applied :" + syncStats.DownloadChangesApplied.ToString();

            Console.WriteLine(message);

            message = "\tDownload Changes Failed  :" + syncStats.DownloadChangesFailed.ToString();

            Console.WriteLine(message);

            message = "\tDownload Changes Total   :" + syncStats.DownloadChangesTotal.ToString();

            Console.WriteLine(message);

        }

    }

}