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OleDb Command Timeout setting is ignored when calling DB2 stored procedure

Posted on 2014-11-03
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Last Modified: 2014-11-18
My .NET application is calling a DB2 stored procedure (z/os).
I set the command timeout to 1 second.  I set up the stored procedure to delay for 10 seconds and then process.
I would expect the .NET application to return an error after 1 second, but it does not.  It continues waiting for the stored procedure to complete.
 
Connection String
 connectionString="Provider=IBMDADB2;Password=*******;User ID=*******;Data Source=******;Persist Security Info=True;Connect Timeout=1

Command
 <add key="CommandTimeout"  value="1"/>
 iCommandTimeout = Ctype(ConfigurationManager.AppSettings("CommandTimeout").ToString, Int32)

Dim command As New OleDbCommand(strTableOwner & "." & sStoredProcToCall, conn)
            command.CommandTimeout = iCommandTimeout
            command.CommandType = CommandType.StoredProcedure
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Question by:Jeanne_Kornkven
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8 Comments
 
LVL 27

Expert Comment

by:tliotta
ID: 40436346
Please explain what you mean by "I set up the stored procedure to delay for 10 seconds and then process." AFAIK, that doesn't seem related to whether or not a Connect Timeout=1 will be signaled. A connection probably happens in less than a second.

Tom
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Author Comment

by:Jeanne_Kornkven
ID: 40436602
Tom, I also set the Command Timeout to 1 second, and that is what I am trying to test.
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LVL 51

Expert Comment

by:Vitor Montalvão
ID: 40446897
The connection timeout is the time that the application is waiting for a connection to be opened on the server and not the maximum time allowed for a query to run. The server didn't throw an error because it could got connected in less than 1 second.
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Author Comment

by:Jeanne_Kornkven
ID: 40447563
Vitor, I also set the Command Timeout to 1 second, and that is what I am trying to test.  Sorry if my example was confusing.
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LVL 51

Expert Comment

by:Vitor Montalvão
ID: 40447623
Jeanne, hi just realize now. Sorry, my fault.
Command timeout it's the maximum time waiting for a response from the server. Since you have a SP delaying 10 seconds I would say that while there's feedback from the server, won't throw a timeout error. I mean, from the DB side it's waiting for 10 seconds but the server is still communicating with your application.
You would test it better with a long running query than something that only do a pause.
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Author Comment

by:Jeanne_Kornkven
ID: 40448051
Vitor, I am calling  a COBOL stored procedure on the IBM mainframe.  So we are actually inside the COBOL program when the delay is happening.  I did actually try a pause first, which had the same result.
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LVL 51

Accepted Solution

by:
Vitor Montalvão earned 2000 total points
ID: 40449191
Jeanne, it was what I said. Don't test with delay/pause. You need to test with queries. Try with a query that you know will take long to be executed.
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