SQL Server Integration Services (SSIS) packages can be created and used to perform various tasks related to ETL. Once the package is built, it can be reused or scheduled in a SQL Server Agent job so that it runs regularly to perform the task regularly based on the defined schedule.
SQL Server Agent allows running SSIS packages using the Integration Services Package as the job step type. Most often or not the SSIS packages runs fine through SQL Server Agent jobs, however sometimes it may fail due to various error. One of the common error SSIS package job may fail is due to TIMEOUT. Below is the error that you may see in the job history.
Code: 0xC0047062 Source: DTSTask_DTSDataPumpTask_1 ADO NET Source
Description: System.Data.SqlClient.SqlException: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlDataReader.ConsumeMetaData() at System.Data.SqlClient.SqlDataReader.get_MetaData() at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior) at Microsoft.SqlServer.Dts.Pipeline.DataReaderSourceAdapter.PreExecute() at Microsoft.SqlServer.Dts.Pipeline.ManagedComponentHost.HostPreExecute(IDTSManagedComponentWrapper100 wrapper) End Error
This error can occur due to command timeout. SSIS package internally converts the task into SQL queries and sends the queries to run against the SQL Server instance. By default the timeout value will be 30 seconds. I a query does not complete by 30 seconds, then it will fail with TIMEOUT error.
To resolve this issue we will need to identify the queries which are taking more than 30 seconds. One way to find this is using SQL Server Profiler or Extended Events. Once the offending query is identified, we need to find options to tune this query.
If the package is related to vendor application or if it is acceptable for the query to take more time to complete, then you can consider increasing the timeout value from 30 seconds to higher value so that the query can take upto the number of seconds specified.
In this case for the above mentioned error, it was using ADO.NET connection, so in ADO.NET source task, click on the Properties and set the CommandTimeout from 30 to higher value or to zero (0) which indictes that the query can take any longer until it completes of fails.
What is SQL Server Integration Services?
Microsoft Integration Services is a platform for building enterprise-level data integration and data transformations solutions. You use Integration Services to solve complex business problems by copying or downloading files, sending e-mail messages in response to events, updating data warehouses, cleaning and mining data, and managing SQL Server objects and data. The packages can work alone or in concert with other packages to address complex business needs. Integration Services can extract and transform data from a wide variety of sources such as XML data files, flat files, and relational data sources, and then load the data into one or more destinations.
This is applicable on below versions of SQL Server
SQL Server 2005
SQL Server 2008 R2
SQL Server 2012
SQL Server 2014
Hope this was helpful.
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