Custom DLL deployment

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Custom DLL deployment

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mramaswamy

Posted Sunday, January 27, 2013 2:12 AM

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Hi,

I have two SSIS packages which uses the Custom DLL in a script task. This Custom DLL has code which is not only used by ssis, but various other components in our project. Everytime when the DLL updated for any change in other components(not in the code used by the ssis tasks), the package been failed in the production with the following error.
"Cannot create user component class. Make sure there is one class marked with SSISScriptComponentEntryPointAttribute in your script. at Microsoft.SqlServer.Dts.Pipeline.ScriptComponentHost.CreateUserScriptInstance() End "

Note:whenever the DLL changes, I ensured to register the latest in GAC of the production environment.

If I open the script tasks and rebuild the code, it resolves the issue without changing any setting or one line of code.
Is this the SSIS necessity to rebuild the tasks if DLL changes or am I missing any setting? Please help me on this.

ENV used : SSIS 2008 and .NET 3.5 framework
Note: I tried setting dealy validation to true also, but no help.

Thanks,

Post #1412111

opc.three

Posted Sunday, January 27, 2013 9:23 AM

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When you promote the new assembly into the GAC is it using the same version and public key?

__________________________________________________________________________________________________
There are no special teachers of virtue, because virtue is taught by the whole community. --Plato

Believe you can and you're halfway there. --Theodore Roosevelt

Everything Should Be Made as Simple as Possible, But Not Simpler --Albert Einstein

The significant problems we face cannot be solved at the same level of thinking we were at when we created them. --Albert Einstein

1 apple is not exactly 1/8 of 8 apples. Because there are no absolutely identical apples. --Giordy

Post #1412136

mramaswamy

Posted Tuesday, January 29, 2013 7:55 PM

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I found the Key file used to build my custom assembly was different in production region.
But I later updated the package using the new build assembly from prod. My assumption is, so after that(package updated with new assembly from prod), whenever the custom assembly rebuild, the package should not fail, as we rebuild already with the assembly from prod.
Would that not be the case? please advise me. I am bit confused how things are with.

Post #1413419

opc.three

Posted Tuesday, January 29, 2013 9:18 PM

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mramaswamy (1/29/2013)

As I understand it as long as you keep the version number, name and sign it with the same key the SSIS package will not notice if you redeploy a custom assembly that it references to the GAC.

__________________________________________________________________________________________________
There are no special teachers of virtue, because virtue is taught by the whole community. --Plato

Believe you can and you're halfway there. --Theodore Roosevelt

Everything Should Be Made as Simple as Possible, But Not Simpler --Albert Einstein

The significant problems we face cannot be solved at the same level of thinking we were at when we created them. --Albert Einstein

1 apple is not exactly 1/8 of 8 apples. Because there are no absolutely identical apples. --Giordy

Post #1413426

mramaswamy

Posted Tuesday, January 29, 2013 9:49 PM

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Thanks for the information. I wil try this way and keep posted.

Post #1413433

mramaswamy

Posted Wednesday, February 27, 2013 1:50 AM

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Hi,

Thanks for your help. Key files was the issue, I used same in all environments, which resolved the issue. Smile

Post #1424396

opc.three

Posted Wednesday, February 27, 2013 9:02 AM

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Excellent! That is how the GAC is supposed to work. Happy to know you got it sorted. Thanks for posting back.

__________________________________________________________________________________________________
There are no special teachers of virtue, because virtue is taught by the whole community. --Plato

Believe you can and you're halfway there. --Theodore Roosevelt

Everything Should Be Made as Simple as Possible, But Not Simpler --Albert Einstein

The significant problems we face cannot be solved at the same level of thinking we were at when we created them. --Albert Einstein

1 apple is not exactly 1/8 of 8 apples. Because there are no absolutely identical apples. --Giordy

Post #1424586

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