SQL Server Stored Procedure runs in seconds...but not in SSIS Package it takes minutes

Bobby P 221 Reputation points

When we unit tested our SQL Server Stored Procedure, it runs in seconds. Yet the same SQL Server Stored Procedure when executing in our SSIS Package in a Data Flow and an OLE DB Source is taking minutes.

Actually while I was waiting and questioning everything and maybe considering a database lock or something while the SSIS Package was running, I EXECed the SQL Server Store Procedure in SQL Server Management Studio and again it ran in seconds.

Why is the same SQL Server Stored Procedure in the SSIS Package taking so long to run?

Any insight would be greatly appreciated.

And Thanks for your review and am hopeful for a quality reply.

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2 answers

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  1. Erland Sommarskog 99,546 Reputation points MVP

    Try the effect of running


    before your run the procedure in SSMS. If my guess is right, it will be slow in SSMS as well.

    Most likely it is related to parameter sniffing, and I discuss this in detail in the article Slow in the Application - Fast in SSMS?.

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  2. ZoeHui-MSFT 30,881 Reputation points

    Hi @Bobby P ,

    Please try with below methods to see if it could improve the performance:

    1.Ensure connection managers for OLE DB sources are all set toDelayValidation ( = True).

    2.Ensure that ValidateExternalMetadata is set to false

    3.DefaultBufferMaxRows and DefaultBufferSize to correspond to the table's row sizes

    4.DROP and Recreate your destination component in SSIS

    You may also refer to ssis-package-takes-a-long-time-to-run to see if it could give you some ideas.



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