Timeout When Obtaining A Connection From The Pool

Oct 6, 2006

Hi All,
I'm having a bit of a problem with a c# program which creates and index file/table. The number of records I need to process is around 3500, the main loop. Each of thoes records I need  to look at a 2 text fields and create an entry in an index table for each valid word found in thoes fields.
I call a stored proc to save the key word. So this stored proc get called numerous time per record.
What seems to be happening is proceese about 400 main rcords the errors out with the following error message:
 {"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." }
Has anyone had a similar problem? if so any suggestions on how to fix, I've been looking at this problem and recoding for the last 4 days! I need some help!
 Using SQL Server 2000 & .net v1.1

Thanks in advance
 
Davej
 

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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.

Feb 11, 2004

What does this error message imply?

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Timeout Expired. The Timeout Period Elapsed Prior To Obtaining A Connection From The Pool

Jan 13, 2008

 
Server Error in '/' Application.


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. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: 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.Source Error:



An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace:



[InvalidOperationException: 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.]
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +1188873
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +413
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
LogDo.Log_Db_Save(String sjm, String k_sql, String bz) +438
LogDo.Log_Save(Exception e, String sql) +124
DataCaoZuo.Manage_ResultTB_Caozuo(String comstr) +145
Cls_UserManage.GetAllUserList() +18
Index.Page_Load(Object sender, EventArgs e) +83
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +34
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +47
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061


Version Information: Microsoft .NET Framework Version:2.0.50727.832; ASP.NET Version:2.0.50727.832

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Feb 5, 2004

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Sep 5, 2007


Hi,

I have recently installed SP2 for SQLServer 2005 and started to have connection pool issues. I have tried to explicitly mention the pool settings in connection string and yet pooling doesn't seem to work. I have one more box with no service packs applied and is pooling is perfect!. Has any one experienced this??

Thank you,

Viswanath Ivatury

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Connection Pool To Access Sql Server For Multiple User?

Dec 12, 2007



HI,

I am using SqlServer2005 as data base for my web application. I am able to connect to the database through DBCP connection pool . Its working fine for 2 user. When ever 2 users do transaction, it works fine. But 3 users do the transaction, its trowning error.Even i increase the pool size the behavior is same.
error:
com.microsoft.sqlserver.jdbc.SQLServerException: Server failed to resume the transaction, desc: 3f00000002.

For a change I wrote a connection pool to access the DB. I am getting the same error. i.e. Its working fine for 2 user and throws error for more than 2 users.

Is there any setting to be made?

Same application is working fine for Oracle10g.


Regrads
Rupesh

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How To Explicitly Allocate An Sql Server Connection From The Connections Pool

Feb 21, 2008

Hello.

I have a db dal containing the following code:


SqlCommand cmd = new SqlCommand();

cmd.Connection = dbc;

cmd.CommandType = CommandType.StoredProcedure;

cmd.CommandText = "SOME STORED PROCEDURE";
.
.
.
declare some SqlParameters
.
.
.



dbc.Open();

cmd.ExecuteNonQuery();

dbc.Close();

This code, when concurrently running via several threads, yields the following exception:
"The connection was not closed. The connection's current state is open."


My questions are:
1. Why don't .Net allocate another connection from the pool (I try to only concurrently run 2 threads while there are 25 connections in the connection pool) ?
2. How can one explicitly allocate a connection?
3. How do you suggest to solve this problem without a mutex/monitor etc' on the 3 bold lines above and without BeginExequteNonQuery()?







Thank you !






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Question About Connection Pool From The Servers Point Of View

Nov 2, 2007

I was wondering if someone could help explaining how the SQL Server handles all incoming connections, I and a friend started a discussion about using the connection pool in ADO.NET or not in a specific case.


Usually when creating like an ASP.NET Page it's recommended to use the connection pool, because it optimizes the performance, by using already created connection, so we don't have to recreate the connection all the time. I have always thought that the connection in the connection pool had an open connection on the server. So 5 connections in the connection pool, would be 5 open connections at the server. But after having the discussion with my friend I am not so sure anymore.


Say that I would create a client application (.NET using ADO.NET) that connects to the database and work with that data. If I then have 1.000 clients and each client have a connection pool with 5 connections in it (I think that the default numbers for the connection pool), then there would be like 5.000 open connections on the SQL Server, where most of the connections actually never do anything more than hanging around and waiting... And then the connectionpool is not 1 per client but 1 per connectionstring.


So if my client scenario would access data from 2 different databases, there would actually be 10.000 open connections at the SQL Server. So now I think that there must be a server connection pool or something to handle the connection from the clients. So that there would only be like 10-50 open connections at the server for the 1.000 Clients that was connected.


How is it? Is there 1 open connection in the server for every connection in the connection pool? If that's the case, it would be better for the SQL Server if I don't not use the connection pool in the client, but instead open the connection when we need it, and then close it, and taking that little performance hit every time, to help the performance on the SQL Server.


Best regards

- Magnus

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Issue With Connection Pool Using JDBC Driver On Tomcat 5.0

Aug 6, 2007



Hi,

I am facing problem in configuring and using connection pooling on tomcat 5.0. I am using JDBC Driver v.1.1 for SQL Server 2005.

Can anybody point me to appropriate samle code or guideline?

Thanks & Regards,

Bhavin P Panchal

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Need Advise. Problem With Connection Pool. Function Returning SqlDataReader.

Sep 6, 2007

Halo all
 
I have a problem with "timeout expired. Thei timeout periode elapsed prior to obtaining a connection from the pool. This may have occured because all pooled  connections were use  and max pool size was reached"
Then i explore and found out that i did not close my SqlDataReader, SqlDataAdapter, SqlCommand or my connection.
 
But i have a function that return a  SqlDataReader.
Is this function will cause a connection problem?
 
Thanks in advance
 
 
        Public Function GetDataReader(ByVal strSQL As String, ByVal DBCon As DB.DBConnection) As SqlDataReader            Dim MyCommand As SqlCommand = New SqlCommand(strSQL, DBCon.GetConnection())
            If DBCon.GetConnection().State = ConnectionState.Closed Then                DBCon.GetConnection().Open()            End If
            Dim dr As SqlDataReader = MyCommand.ExecuteReader()
            Return dr
            dr.Close()
        End Function

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Facing Problem In Increasing Connection String Pool Size Sqlserver

Mar 4, 2005

Hi to all,

I am using a connection string like

data source=RemoteHostName;initial catalog=myDb;password=sa;user id=sa;
Max pool size = 200;

And now strange thing is happening ,, I am receiving error :

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

The SqlServer Activity Manager is telling that only 100 connections are pooled, and I guess that the Max pool size is 100, It is not being changed by my Connection string. As I am trying to change the default 100 pool size value to 200.

Huh , So stucked up , how to increase the Max pool size.. Is there any way .

I am getting worrried.

Any help ??

Thx and Regards

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Connection Pool Limit Reached !! Please Help ! (Using Enterprise Library Data Access Application Block)

Apr 22, 2008

This is my code...
public partial class test : System.Web.UI.Page
{protected void Page_Load(object sender, EventArgs e)
{SqlDatabase database = (SqlDatabase)DatabaseFactory.CreateDatabase("ConnectionString");DbCommand command = database.GetSqlStringCommand("SELECT UserName FROM Users WHERE UserID = '6264'");
 using (IDataReader reader = database.ExecuteReader(command))
{if (reader.Read())
{lblTest.Text = "test";
}
}
}
}
 
 
This is my error:
Server Error in '/' Application.


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.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: 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.Source Error:



Line 21: //DbCommand command = database.GetStoredProcCommand("CorrUsers_GetByUserId_s");
Line 22: DbCommand command = database.GetSqlStringCommand("SELECT UserName FROM Users WHERE UserID = '6264'");
Line 23: database.ExecuteReader(command);
Line 24: using (IDataReader reader = database.ExecuteReader(command))
Line 25: {Source File: d:webwwwrootchacha078dev.cha.toplingo.com est.aspx.cs    Line: 23 Stack Trace:



[InvalidOperationException: 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.]
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +1261381
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
Microsoft.Practices.EnterpriseLibrary.Data.Database.GetNewOpenConnection() +195
Microsoft.Practices.EnterpriseLibrary.Data.Database.GetOpenConnection(Boolean disposeInnerConnection) +106
Microsoft.Practices.EnterpriseLibrary.Data.Database.ExecuteReader(DbCommand command) +62
test.Page_Load(Object sender, EventArgs e) in d:webwwwrootchacha078dev.cha.toplingo.com est.aspx.cs:23
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +33
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +47
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436

Any help with this matter would be very much appreciated.
 Thank you for your time.
 Sincerely,
 Jeffrey Pham

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Connection Pool Leak In Production Machine (in Other Machine It Runs Well)

Nov 16, 2006

Hi to everyone,
I'm facing a problem that drives me crazy. I've a web application that has the following problem. When I test the application on my developement machine all runs fine, but when I put into production server there is a problem in connection pooling. Look at the following image, the blue line is the number of connection in the pool and the violet line is the number of connection reclaimed. From the image it is clear that connection are returned on the pool only in block, maybe when the garbage collection pass and reclaim the object. The strange thing is that on my developement machine all is good, and also I'm using Enterprise Library and the connection are managed internally.- Thanks to everyone for any help.   

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SQL Connection Timeout ?????

Mar 1, 2006

Greetings everyone,
         I am working on an intranet application that executes a very intenstive stored procedure and, on average, takes approximately 30mins to complete execution.  I set the connection timeout property of my connection string to 1900 (31 mins) and <httpRuntime executionTimeout=n> to 1900 as well.  The application fails almost immedately giving me this error:
The error message:
Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
The error stack trace:
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, TdsParserState state)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, TdsParserState state)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning()
at System.Data.SqlClient.TdsParser.ReadNetlib(Int32 bytesExpected)
at System.Data.SqlClient.TdsParser.ReadBuffer()
at System.Data.SqlClient.TdsParser.ReadByte()
at System.Data.SqlClient.TdsParser.ProcessDone(SqlCommand cmd, RunBehavior run)
at System.Data.SqlClient.TdsParser.Run(RunBehavior run, SqlCommand cmdHandler, SqlDataReader dataStream)
at System.Data.SqlClient.SqlDataReader.get_HasMoreRows()
at System.Data.SqlClient.SqlDataReader.Read()
at System.Data.Common.DbDataAdapter.FillLoadDataRow(SchemaMapping mapping)
at System.Data.Common.DbDataAdapter.FillFromReader(Object data, String srcTable, IDataReader dataReader, Int32 startRecord, Int32 maxRecords, DataColumn parentChapterColumn, Object parentChapterValue)
at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable, IDataReader dataReader, Int32 startRecord, Int32 maxRecords)
at System.Data.Common.DbDataAdapter.FillFromCommand(Object data, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
at System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable)
at SALEntry.DataAccess.getDataSet(String strConnection)
at SALEntry.sal_preXakt.btnSubmit_Click(Object sender, EventArgs e)
I tried to check the current activity log through Enterprise Manager but was unable to as I got an error saying that it was locked however once 31 mins expired, the lock was removed?  Any ideas on how to resolve these issues?

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Connection Timeout

Jan 21, 2005

We recently moved our SQL Server to a faster machine. Everything is working great except every once in a while we get a connection timeout to the sql server. Everything else seems to be performing better but that initial connection is taking longer.

I realize this could be caused by a great deal of things, but if anybody has any suggestions I would appriciate it.

Thanks much.

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Connection Timeout

Apr 25, 2007

Hi, I have a client application that submits heavy processing query to an instance of Sql Server 2005 (Enteriprise Edition). After a few seconds the following exception is raised: "The time available has expired before the completion of the operation or the server is not responding". If I submit to the same application light processing queries the exception is not raised.
The client application is written in VB.net and uses ADO.net. (SqlConnection, SqlCommand,.. classes). The "Timeout connection" property is set to 1000.
Any suggestion?
Thank you.

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Connection Timeout

Nov 16, 2006



In one of my applications I want to set a connection timeout to 1 second when connecting to the SQL Server. .NET's SqlConnection already has connectiontimeout property as readonly and set to 15 seconds. So I cant use it. And if I use adodb.dll and its ADODB.Connection, this time I can set the objects connectiontimeout property. However, it just doesn't work. It still waits along time even though I set the connectiontimeout to 1 second. The same goes when you try the same thing in Delphi.

Anyone has any idea about this problem?

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Connection Timeout - Need Help

Jun 9, 2006

Hello,

My app uses sql express on the client work station and has been installed by our application installer as a part of the prerequisites. The sql express install in standard and we've not changed any settings or brought in any tweaks.

All is well in our dev center. However, some of our clients are experiencing a problem when the app starts up. After the PC has been restarted, running the application causes it to crash with a connection time out. However, running it a second time will work with absolutely no issues.

Overall - after a restart, the first sql express connection will time out. I had a post on this earlier here -> http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=93279&SiteID=1

MS Lee had suggested -- > "As for the first connection failing and subsequent connections succeeding, one potential cause is the cached last connect information. If you're connecting to a named instance and not specifying a port, then the client will determine the port by querying SQL Browser on the server"

I'm not using a remote sql express. It is running on the local machine. My connection string looks like -->

"Integrated Security=True;User Instance=True;Data Source=.SQLExpress;AttachDBFilename=<%USERS_LOCAL_FOLDER%>;"

What may be the problem ? Any help/advise will be great. I'll need to sort this out ASAP.



Thanks,

Avinash







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.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)

at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)

at System.Data.SqlClient.TdsParserStateObject.ReadSniError(TdsParserStateObject stateObj, UInt32 error)

at System.Data.SqlClient.TdsParserStateObject.ReadSni(DbAsyncResult asyncResult, TdsParserStateObject stateObj)

at System.Data.SqlClient.TdsParserStateObject.ReadPacket(Int32 bytesExpected)

at System.Data.SqlClient.TdsParserStateObject.ReadBuffer()

at System.Data.SqlClient.TdsParserStateObject.ReadByte()

at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)

at System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK)

at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)

at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)

at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)

at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options)

at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject)

at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject)

at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject)

at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)

at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)

at System.Data.SqlClient.SqlConnection.Open()

at ***.**.Base.DataServices.DataFactory.SQLProvider.GetConnection(String connectionString) in c:DevNetSCAH***.**.Base.DataServicesDataFactorySQLProvider.cs:line 30

at ***.**.Base.DataServices.DalContext.OpenConnection() in c:DevNetSCAH***.**.Base.DataServicesDALContext.cs:line 166

at ***.**.Base.DataServices.DataManager.GetTable(String sql, String tableName, DataSet dataSet) in c:DevNetSCAH***.**.Base.DataServicesDataManager.cs:line 93

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SQL Server And ASP.net - Connection TimeOut

Aug 13, 2007

Every few days we have to restart SQL Server because our users are experiencing timeouts and very slow page loads.  Does anyone have ideas on fixing this?

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