Hi
My company runs Web Services written in C# (running Windows 2012R2 / IIS 8.5) that use the SSIS API (via HTTPS) to execute
packages on a remote 2012 SQL Server (running Windows 2012R2) and we are experiencing some performance issues when issuing a particular command via the API.
I am trying to understand exactly what happens when the Web Service issues the command to execute the package (asynchronously)
as this our bottleneck - it can take up to 30 seconds to execute a package, yet the package may only actually take 5 seconds or less to complete.
In our C# code (listed below) we create the execution of the package with any parameters added and then perform the execute
once we have the Execution Identifier. This is where the issue is; the call is made to run the package and the response takes around 30 seconds to complete but the packages finishes in a few seconds.
What I am trying to find out (as there is no documentation that I can find) is exactly what happens in SQL Server when
this code is executed:
ExecutionOperation executionOperation = catalogSSISDB.Executions[executionIdentifier];
If I can understand what these API commands actually do,
I may be able to troubleshoot the issue further but at the moment, we are scratching our heads.
Any help or guidance is greatly appreciated!
usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Runtime.Serialization;usingSystem.ServiceModel;usingSystem.ServiceModel.Web;usingSystem.Text;usingMicrosoft.SqlServer.Management.IntegrationServices;usingSystem.Data;usingSystem.Data.SqlClient;usingMicrosoft.SqlServer.Management;usingSystem.Configuration;// NOTE: You can use the "Rename" command on the "Refactor" menu to change the class name "Service" in code, svc and config file together.publicclassService:IService{publicvoid invokeSyncWebServiceName(input_WebServiceName input,outstring correlationId,outExecutionStateType executionState,outResultStatusType resultStatus,out output_WebServiceName output){ output =new output_WebServiceName(); correlationId ="-1";try{//Establish a connection to the SSIS serverSqlConnection sqlSSISConnection =newSqlConnection(ConfigurationManager.ConnectionStrings["SSISCatalogConnection"].ConnectionString);//Connect to the SSIS serverIntegrationServices integrationServices =newIntegrationServices(sqlSSISConnection);Catalog catalogSSISDB = integrationServices.Catalogs["SSISDB"];//Get package from catalogPackageInfo myPackage = integrationServices.Catalogs["SSISDB"].Folders["FolderName"].Projects["ProjectName"].Packages["PackageName.dtsx"];//Set package parametersSystem.Collections.ObjectModel.Collection<PackageInfo.ExecutionValueParameterSet> executionValueParameterSet =newSystem.Collections.ObjectModel.Collection<PackageInfo.ExecutionValueParameterSet>(); executionValueParameterSet.Add(newPackageInfo.ExecutionValueParameterSet{ParameterName="Param1",ParameterValue=DateTime.Parse(input.Date1),ObjectType=30}); executionValueParameterSet.Add(newPackageInfo.ExecutionValueParameterSet{ParameterName="Param2",ParameterValue= input.Value1,ObjectType=30}); executionValueParameterSet.Add(newPackageInfo.ExecutionValueParameterSet{ParameterName="Param3",ParameterValue= input.Value2,ObjectType=30});//Get SSIS environmentEnvironmentReference environmentReference = myPackage.Parent.References[ConfigurationManager.AppSettings["SSISEnvironment"],ConfigurationManager.AppSettings["SSISEnvironmentFolder"]];//Execute packagelong executionIdentifier = myPackage.Execute(false, environmentReference, executionValueParameterSet);//Set correlationID to SSIS executionID correlationId = executionIdentifier.ToString();//Execute packageExecutionOperation executionOperation = catalogSSISDB.Executions[executionIdentifier];//Refresh execution status executionOperation.Refresh();//Wait for the package to complete (if applicable)while(!executionOperation.Completed){System.Threading.Thread.Sleep(5000); executionOperation.Refresh();}//Package completed executionState =ExecutionStateType.FINISHED;//Get completion statusif(executionOperation.Status==Operation.ServerOperationStatus.Success){ resultStatus =ResultStatusType.OK;}else{ resultStatus =ResultStatusType.ERROR;}//SSIS package execution results are persisted to a database//Connect to database to obtain package execution resultSqlConnection sqlConnection =newSqlConnection(ConfigurationManager.ConnectionStrings["PackageOutputConnection"].ConnectionString); sqlConnection.Open();string strSQLCommand ="SELECT package_output, result_status FROM package.execution_output WHERE execution_id = "+ executionIdentifier.ToString();SqlCommand sqlCommand =newSqlCommand(strSQLCommand, sqlConnection);SqlDataReader sqlDataReader = sqlCommand.ExecuteReader();//If there's no row in the table for the execution the package completed successfully but do not return a resultif(!sqlDataReader.HasRows){ output.Result="";}else{//Get the result and set the web method response sqlDataReader.Read(); output.Result= sqlDataReader.GetString(0);string strPackageResultStatus = sqlDataReader.GetString(1);if(strPackageResultStatus =="OK"){ resultStatus =ResultStatusType.OK;}elseif(strPackageResultStatus =="WARNING"){ resultStatus =ResultStatusType.WARNING;}else{ resultStatus =ResultStatusType.ERROR;} sqlDataReader.Close();//Update the package.execution_output table to show the result has been returnedstring strSQLUpdate ="UPDATE package.execution_output SET output_delivered = 'Y' WHERE execution_id = "+ executionIdentifier.ToString();SqlCommand sqlUpdateCommand =newSqlCommand(strSQLUpdate, sqlConnection); sqlUpdateCommand.ExecuteNonQuery();} sqlConnection.Close();}catch(Exception e){ output.Result= e.Message; resultStatus =ResultStatusType.ERROR; executionState =ExecutionStateType.FINISHED; DWF.Logging.ErrorLogging.LogError(e);}return;}}