public void replication() { // Set the server and database names string distributionDbName = "TestDb"; string publisherName = "DESKTOP-9UAIISP\\MSSQLSERVER2017"; string publicationDbName = "TestMergeDb"; DistributionDatabase distributionDb; ReplicationServer distributor; DistributionPublisher publisher; ReplicationDatabase publicationDb; // Create a connection to the server using Windows Authentication. ServerConnection conn = new ServerConnection(publisherName, "sa", "Ads78ghj@2"); try { // Connect to the server acting as the Distributor // and local Publisher. conn.Connect(); // Define the distribution database at the Distributor, // but do not create it now. distributionDb = new DistributionDatabase(distributionDbName, conn); distributionDb.MaxDistributionRetention = 96; distributionDb.HistoryRetention = 120; // Set the Distributor properties and install the Distributor. // This also creates the specified distribution database. distributor = new ReplicationServer(conn); distributor.InstallDistributor("sa", distributionDb); // Set the Publisher properties and install the Publisher. publisher = new DistributionPublisher(publisherName, conn); publisher.DistributionDatabase = distributionDb.Name; publisher.WorkingDirectory = @"\\" + publisherName + @"\repldata"; publisher.PublisherSecurity.WindowsAuthentication = true; publisher.Create(); // Enable AdventureWorks2012 as a publication database. publicationDb = new ReplicationDatabase(publicationDbName, conn); publicationDb.EnabledTransPublishing = true; publicationDb.EnabledMergePublishing = true; } catch (Exception ex) { // Implement appropriate error handling here. throw new ApplicationException("An error occured when installing distribution and publishing.", ex); } finally { conn.Disconnect(); } }
//配置发布和分发服务器 protected void Button5_Click(object sender, EventArgs e) { string distributionDbName = "distribution"; string publisherName = SMO.publisherName; //"rd01";发布者服务器名 string publicationDbName = SMO.publicationDatabase; //"HdHouse";发布的数据库名 DistributionDatabase distributionDb; ReplicationServer distributor; DistributionPublisher publisher; ReplicationDatabase publicationDb; // Create a connection to the server using Windows Authentication. ServerConnection conn = new ServerConnection(publisherName); try { // Connect to the server acting as the Distributor // and local Publisher. conn.Connect(); // Define the distribution database at the Distributor, // but do not create it now. distributionDb = new DistributionDatabase(distributionDbName, conn); distributionDb.MaxDistributionRetention = 96; distributionDb.HistoryRetention = 120; // Set the Distributor properties and install the Distributor. // This also creates the specified distribution database. distributor = new ReplicationServer(conn); distributor.InstallDistributor((string)null, distributionDb); // Set the Publisher properties and install the Publisher. publisher = new DistributionPublisher(publisherName, conn); publisher.DistributionDatabase = distributionDb.Name; publisher.WorkingDirectory = @"\\" + publisherName + @"\repldata";//用于访问快照文件的共享目录。 publisher.PublisherSecurity.WindowsAuthentication = true; publisher.Create(); // Enable AdventureWorks as a publication database. publicationDb = new ReplicationDatabase(publicationDbName, conn); publicationDb.EnabledTransPublishing = true; publicationDb.EnabledMergePublishing = true; } catch (Exception ex) { // Implement appropriate error handling here. throw new ApplicationException("An error occured when installing distribution and publishing.", ex); TextBox3.Text += "An error occured when installing distribution and publishing." + ex + " \r\n"; } finally { conn.Disconnect(); } }
// Loop while program is running and ping trusted nodes to determine whether they are online or offline // When a node comes online, distribute indexes to that node public void BeginIndexDistribution() { DistributionDatabase ddb = new DistributionDatabase(); List <string> guidList = new List <string>(); NodeDatabase ndb = new NodeDatabase(); string online = "online"; string offline = "offline"; ddb.ResetStatus(); while (distribute) { guidList = ndb.SelectGUID(); foreach (string currentGUID in guidList) { if (Node.GetGuid() != Guid.Parse(currentGUID)) { Thread.Sleep(1000); ddb.InsertNode(currentGUID, offline); if (ndb.SelectNodeTrusted(Guid.Parse(currentGUID)) == "yes") { Ping pingSender = new Ping(); int timeout = 100; try { IPAddress ip = ndb.SelectNodeIp(Guid.Parse(currentGUID)); PingReply reply = pingSender.Send(ip, timeout); if (reply.Status == IPStatus.Success) { if (ddb.GetStatus(currentGUID) == offline) { sendIndexes(currentGUID); ddb.UpdateStatus(currentGUID, online); } } else { ddb.UpdateStatus(currentGUID, offline); } } catch (Exception ex) { Debug.Print(ex.Message); } } else { ddb.UpdateStatus(currentGUID, offline); } } } } }
// Send indexes to all trusted nodes that are online // For use after a backup and associated index insertion have occurred public void sendIndexes() { IndexDatabase idd = new IndexDatabase(); if (!idd.TablesEmpty()) //if there are indexes to send { DistributionDatabase ddb = new DistributionDatabase(); List <string> guidList = new List <string>(); NodeDatabase ndb = new NodeDatabase(); string online = "online"; string indexDBCopy = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetEntryAssembly().Location) + @"\indexes_" + (Properties.Settings.Default.guid).ToString() + ".s3db"; if (System.IO.File.Exists(idd.GetPathFileName())) { try { System.IO.File.Copy(idd.GetPathFileName(), indexDBCopy, true); } catch (System.IO.IOException e) { Debug.Print(e.Message); } } guidList = ndb.SelectGUID(); foreach (string currentGUID in guidList) { if (Node.GetGuid() != Guid.Parse(currentGUID) && ddb.GetStatus(currentGUID) == online && ndb.SelectNodeTrusted(Guid.Parse(currentGUID)) == "yes") { Guid myGuid = Node.GetGuid(); TcpClient tcpClient = new TcpClient((ndb.SelectNodeIp(Guid.Parse(currentGUID))).ToString(), 7890); ClientThread ct = new ClientThread(tcpClient, false, myGuid); PushIndexRequest pir = new PushIndexRequest(indexDBCopy, new FileInfo(indexDBCopy).Length); ct.EnqueueWork(pir); NetworkResponse response = (NetworkResponse)ct.DequeueEvent(); while (ct.IsWorking()) { Thread.Sleep(1000); } ct.RequestStop(); while (ct.IsAlive()) { Thread.Sleep(1000); } } } } }
//配置发布和分发服务器 protected void Button5_Click(object sender, EventArgs e) { string distributionDbName = "distribution"; string publisherName =SMO.publisherName;//"rd01";发布者服务器名 string publicationDbName = SMO.publicationDatabase; //"HdHouse";发布的数据库名 DistributionDatabase distributionDb; ReplicationServer distributor; DistributionPublisher publisher; ReplicationDatabase publicationDb; // Create a connection to the server using Windows Authentication. ServerConnection conn = new ServerConnection(publisherName); try { // Connect to the server acting as the Distributor // and local Publisher. conn.Connect(); // Define the distribution database at the Distributor, // but do not create it now. distributionDb = new DistributionDatabase(distributionDbName, conn); distributionDb.MaxDistributionRetention = 96; distributionDb.HistoryRetention = 120; // Set the Distributor properties and install the Distributor. // This also creates the specified distribution database. distributor = new ReplicationServer(conn); distributor.InstallDistributor((string)null, distributionDb); // Set the Publisher properties and install the Publisher. publisher = new DistributionPublisher(publisherName, conn); publisher.DistributionDatabase = distributionDb.Name; publisher.WorkingDirectory = @"\\" + publisherName + @"\repldata";//用于访问快照文件的共享目录。 publisher.PublisherSecurity.WindowsAuthentication = true; publisher.Create(); // Enable AdventureWorks as a publication database. publicationDb = new ReplicationDatabase(publicationDbName, conn); publicationDb.EnabledTransPublishing = true; publicationDb.EnabledMergePublishing = true; } catch (Exception ex) { // Implement appropriate error handling here. throw new ApplicationException("An error occured when installing distribution and publishing.", ex); TextBox3.Text += "An error occured when installing distribution and publishing." + ex + " \r\n"; } finally { conn.Disconnect(); } }