WCF服務10s呼叫同步

Question

我正在使用Microsoft Sync Framework並每隔10秒在WCF服務上同步。在某些系統上，我遇到了怪異的SemaphoreFullExceptions，所以我試圖重構這個Synching Background Thread。 基本上我的問題是：什麼樣的方法更傾向於：

private void SynchronizedWorker() 
    { 
     // Sync loop 
     while (!_shouldStop) 
     { 
      using (var conn = new SqlConnection()) 
      { 
       SyncOrchestrator orchestrator = new SyncOrchestrator(); 
       SqlSyncProviderProxy destinationProvider = new SqlSyncProviderProxy("TEST"); 
       SqlSyncProvider localProvider = new SqlSyncProvider("TEST", conn); 
       // Set Providers 
       orchestrator.LocalProvider = localProvider; 
       orchestrator.RemoteProvider = destinationProvider; 
       // Direction 
       orchestrator.Direction = SyncDirectionOrder.UploadAndDownload; 


       // Sync 
       orchestrator.Synchronize(); 
      } 


      // wait for next interval or being woken up 
      if (_syncWaitEvent.WaitOne(10000)) 
      { 
       // we have been signaled prior to the timeout expiring 
       _syncForce = false; 
      } 
     } 
    } 

或本

SqlConnection conn; 
    SyncOrchestrator orchestrator = new SyncOrchestrator(); 
    SqlSyncProviderProxy destinationProvider = new SqlSyncProviderProxy("TEST"); 
    SqlSyncProvider localProvider = new SqlSyncProvider("TEST", conn); 

    private void SynchronizedWorker2() 
    { 
     conn = new SqlConnection(); 
     orchestrator = new SyncOrchestrator(); 
     destinationProvider = new SqlSyncProviderProxy("TEST"); 
     localProvider = new SqlSyncProvider("TEST", conn); 
     // Set Providers 
     orchestrator.LocalProvider = localProvider; 
     orchestrator.RemoteProvider = destinationProvider; 
     // Direction 
     orchestrator.Direction = SyncDirectionOrder.UploadAndDownload; 

     // Sync loop 
     while (!_shouldStop) 
     { 
      // Sync 
      orchestrator.Synchronize(); 

      // wait for next interval or being woken up 
      if (_syncWaitEvent.WaitOne(10000)) 
      { 
       // we have been signaled prior to the timeout expiring 
       _syncForce = false; 
      } 
     } 
    } 

對每個同步創建新的對象，我似乎是要走的更清潔的方式。但是，它當然會花費更多的CPU時間。

您認爲如何？

Answer 1

我所做的是使用相同的Orchestrator的同步，但在兩個案例中，我處置的對象（和再造如果需要的話）：

• 發生
• 應用程序正在退出錯誤

認爲這是要走的路...