Got Time Out Expired Error After Pooling

Mar 4, 2008

The database connection was ok without specify any pooling parameter, however, after I decide to put pooling parameter to the connection string. I frequently expierence "Time out expired" exception.
Here is the connection string: "Pooling = True; Min Pool Size = 5; Max Pool Size = 100;Server = servername; AttachDbFilename = database_file; Integrated Security = True;"

As you see, it is not much different from default value.
I was thinking may be I should give a "Time out" value to the connection, will this help?
 

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Timeout Expired In Connection Pooling For ASP.NET 1.1 Selet Case

May 31, 2006

I'm getting the following error in my v1.1 page:
Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.
Not sure why, since I'm trying to close the connection right when I'm done, and I've got the timeout set to "30"
Select Case DBselected            Case "DB8"                Try                    Dim sCon1 As New SqlConnection                    sCon1.ConnectionString = ConfigurationSettings.AppSettings("db8")                    Session("DBDDL") = sCon1.ConnectionString.ToString()                    sCon1.Open()
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            Case "DB1"                Try                                       Dim sCon1 As New SqlConnection                    sCon1.ConnectionString = ConfigurationSettings.AppSettings("db1")                    Session("DBDDL") = sCon1.ConnectionString.ToString()                    sCon1.Open()
                    Dim cmd As New SqlCommand("[usp_Security]", sCon1)                    cmd.CommandType = System.Data.CommandType.StoredProcedure                    cmd.Parameters.Add(New System.Data.SqlClient.SqlParameter("@IDNumber", System.Data.SqlDbType.NVarChar, 50))                    cmd.Parameters("@IDNumber").Value = Session("User")
                    Dim DR As SqlDataReader = cmd.ExecuteReader                    If DR.HasRows = False Then                        btnSwitchboard1.Enabled = False                        lblnotice.Visible = True                        lblnotice.Text = "The IDNumber, " & strIDNumber & ", doesn't exist in the database for access permission!"                    Else                                                btnSwitchboard1.Enabled = True                        lblnotice.Visible = False                    End If                    DR.Close()                    DR = Nothing                Catch ex As Exception                    lblStatus.Text = "Error building IDNumber:  " & ex.Message                Finally                    sCon1.Close()                End Try
            Case "DB2"                Try                                       Dim sCon1 As New SqlConnection                    sCon1.ConnectionString = ConfigurationSettings.AppSettings("db2")                    Session("DBDDL") = sCon1.ConnectionString.ToString()                    sCon1.Open()
                    Dim cmd As New SqlCommand("[usp_Security]", sCon1)                    cmd.CommandType = System.Data.CommandType.StoredProcedure                    cmd.Parameters.Add(New System.Data.SqlClient.SqlParameter("@IDNumber", System.Data.SqlDbType.NVarChar, 50))                    cmd.Parameters("@IDNumber").Value = Session("User")                    Dim DR As SqlDataReader = cmd.ExecuteReader                    If DR.HasRows = False Then                                                btnSwitchboard1.Enabled = False                        lblnotice.Visible = True                        lblnotice.Text = "The IDNumber, " & strIDNumber & ", doesn't exist in the database for access permission!"                    Else                                                btnSwitchboard1.Enabled = True                        lblnotice.Visible = False                    End If                    DR.Close()                    DR = Nothing                Catch ex As Exception                    lblStatus.Text = "Error building IDNumber:  " & ex.Message                Finally                    sCon1.Close()                End Try
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                    Dim cmd As New SqlCommand("[usp_Security]", sCon1)                    cmd.CommandType = System.Data.CommandType.StoredProcedure                    cmd.Parameters.Add(New System.Data.SqlClient.SqlParameter("@IDNumber", System.Data.SqlDbType.NVarChar, 50))                    cmd.Parameters("@IDNumber").Value = Session("User")                    Dim DR As SqlDataReader = cmd.ExecuteReader                    If DR.HasRows = False Then                        btnSwitchboard1.Enabled = False                        lblnotice.Visible = True                        lblnotice.Text = "The IDNumber, " & strIDNumber & ", doesn't exist in the database for access permission!"                    Else                                               btnSwitchboard1.Enabled = True                        lblnotice.Visible = False                    End If                    DR.Close()                    DR = Nothing                Catch ex As Exception                    lblStatus.Text = "Error building IDNumber:  " & ex.Message                Finally                    sCon1.Close()                End Try
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                    Dim cmd As New SqlCommand("[usp_Security]", sCon1)                    cmd.CommandType = System.Data.CommandType.StoredProcedure                    cmd.Parameters.Add(New System.Data.SqlClient.SqlParameter("@IDNumber", System.Data.SqlDbType.NVarChar, 50))                    cmd.Parameters("@IDNumber").Value = Session("User")                    Dim DR As SqlDataReader = cmd.ExecuteReader                    If DR.HasRows = False Then                                                btnSwitchboard1.Enabled = False                        lblnotice.Visible = True                        lblnotice.Text = "The IDNumber, " & strIDNumber & ", doesn't exist in the database for access permission!"                    Else                                                btnSwitchboard1.Enabled = True                        lblnotice.Visible = False                    End If                    DR.Close()                    DR = Nothing                Catch ex As Exception                    lblStatus.Text = "Error building IDNumber:  " & ex.Message                Finally                    sCon1.Close()                End Try

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Apr 5, 2004

Hi,
I have a problem in my .net application.
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The scope of this stored procedure is,
1.It should filter the records using several conditions(say it is Customer)
2.Using the filtered records, again some details are fetched(say it is transaction details)
3.For each and every transaction , Some of the details has to be updated in more than three tables, meanwhile the data to be updated is to be calculated (like tax amount, commision amount)which in turn calls two more stored procedures.

my problem is ..
if there are few records like 1000 or 2000, it is working fine...
but if it exceeds like say 6000 records, i am getting Time out expired error in my application .
If i catch the stored procedure exectution statement in sql profiler and execute it in Sql Query analizer , the stored procedure is executing properly but it takes nearly 6 minutes.
How can i solve this problem.
Please suggest me if i can work with any of the following options.
1)go for web services
2)go for windows services
3)optimize the stored procedure

If any one know some better answer to solve my problem..please post it.

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bye
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Oct 18, 2007

Any help would be appreciated.

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Here is some background:
Nothing has changed on my end. We have another system that my team supports that is able to connect, and they have changed nothing. They're using a different connection method. We're using oledb and they use odbc and a different provider. I confirmed with the SQL Server team that this id made a connection.

Connect String:

Provider=SQLOLEDB.1;;User ID=XXX;Password=xxxx;Data Source=serverdb instance;Initial Catalog=xxxx;
From what i've read, etc this connect string should work still

Here is an example of the code and context of this connect string

'Set connection object
pTEST_HR(pConnect.CreateInstance(__uuidof(Connection)));
pConnect->ConnectionString = OurConnectString;
pConnect->Open("","","",adConnectUnspecified);
'Create and open recordset
TESTHR(pRstEmployee.CreateInstance(__uuidof(Recordset)));
pRstEmployee->Open("Employee", This is the point at which we get a timeout.
_variant_t((IDispatch *)pConnection,true), adOpenKeyset,
adLockOptimistic, adCmdTable);

pCmd->CommandText = SomeString;

pRstEmployee = pCmd->Execute(NULL,NULL,adCmdText);

Server Info:
I have succesfully pinged the server
The client is not in the same domain as the db server

Error:
Appl: A database error has occured ->
Error
Code = 80040e31
Code meaning = IDispatch error #3121
Source = Microsoft OLE DB Provider for SQL Server
Description = Timeout expired

Other info:
Not sure about my client database provider.
This is coded in Visual C++ 6.

I'm not knowledgeable on SQL Server configuration, etc.

Things i've tried so far
Change provider from SQLOLEDB.1 to SQLOLEDB
Change provider to SQLNCLI
Had SQL server query time out set to never time out. The remote login timeout changed to 600 seconds from 30 seconds. However we are getting a timeout in only a few seconds, so i find that interesting.

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        //dt.Rows.Count.ToString();
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hi all,


when developer to retreive the data through ssms it displays like this


Error source:- .Net Sql Client Data Provider
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i checked in ssms tools -->options-->query execution is 0.
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Hello,

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Hi all:

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------------------------------
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Application again starts working fine after I copy database on different SQL server. For temporary solution I swap database from one SQL Server to other one day and back to original SQL server next day. Every morning it takes about 2 hours to copy database. I’m doing this from last few days as working solution. FYI, I have 2 different VB application, each has their own database. One working fine and other started giving me problem, the one I described above.

Few thing I want to let you know:

Recently I changed the SQL server. After I changed I started having this problem. But other application working fine. So I don’t think that could be a problem. (Both application basically same in terms of development and tools they use. VB and SQL Server, ODBC connection, Crystal Reports).

In old SQL server both database had daily backup on third party backup built on different server using Client Network Backup. After I changed the SQL server I never modify backup setting. So after I moved SQL server , every night backup was trying to connect to old SQL server and but It couldn’t take the backup cause I changed the machine. Again if that’s the problem both application should not work but one working fine other is giving me problem.

One more thing I want to mention here is I started having this problem when I left the SQL server copying database overnight. Means, I started copying database and I left the machine ON when I came in the morning copying database was done and I just click on the OK and close the window. Basically It has finished copying database in around 2 hours after I started and I close the window when I came back next morning.

That’s the few things I’m thinking about but I don’t know what kind of database setting this might have changed and how to reset again. Any help will appreciated.

Dose any one know how to combine .mdf (Primary data file) and .ndf (secondary data file) ???

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Hi everyone

I have installed SQL server on my server machine. using localsystem and mixmode option.
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I installed sql server with connectivity tools only option on my client computer.

now, When i try to connect to server using data source from control panel --> Administrative tools --> Data source(ODBC).

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I uninstalled sql server from my client and server computer. and installed again.

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But same error facing

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ASIF

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Hi All,

we are working on a web application created in ASP & SQL 2000 environment.
In the code , we have a single connectionstring to connect database.
The application was running fine for the past 3 years, but all of a sudden we are getting "timeout expired" error only in someparts of the application but not on all database access.
The code which raises this error is a bit large which need to look into table of 8k recs with more conditions.
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I herd we need to upgrade MDAC or we need to change connection timeout or we need to cahnge the code.

we cannot change the query, it is the most possible way we could get that.

Can somebody help me with the possible solution.


Thanks & Regards,
Sai. K.K

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