SQL Server: Timeout expired - asp.net

I am using MS SQL Server 2008, and I get the following error. How can I fix this? Do you guys think setting Timeout to 60 second is a good approach?
Thank you for your time,
Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. Stack Trace: at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) at System.Data.SqlClient.SqlDataReader.ConsumeMetaData() at System.Data.SqlClient.SqlDataReader.get_MetaData() at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) at
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior) at System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) at System.Data.Common.DbDataAdapter.Fill(DataTable[] dataTables, Int32 startRecord, Int32 maxRecords, IDbCommand command, CommandBehavior behavior) at System.Data.Common.DbDataAdapter.Fill(DataTable dataTable) at Karkas.Core.DataUtil.HelperFunctions.SorguCalistir(DataTable dt, SqlCommand cmd) at Karkas.Core.DataUtil.HelperFunctions.SorguCalistir(DataTable dt, String sql, CommandType cmdType, SqlParameter[] parameters) at Karkas.Core.DataUtil.AdoTemplate.DataTableDoldur(DataTable dataTable, String sql, CommandType commandType, SqlParameter[] parameters) at Karkas.Core.DataUtil.AdoTemplate.DataTableOlustur(String sql, SqlParameter[] parameters) at

Whether or not to change the command timeout depends on several things. It think you should first spend some time finding out why the timeout is occuring in the first place:
Are you fetching too much information in one go?
Can you improve the performance somehow. Maybe add som indexes on the relevant tables?
Is there another process (or other processes) locking the tables, blocking you query
After you have figured out the reason, you can then decide if increasing the command timeout is the right thing to do. But especially if the problem is blocking by outher processes I would be very hesitant to increase the timeout. That might make the problem worse.

Related

System.Data.SqlClient.SqlException: '' is not a recognized built-in function name

Here is the error I am getting:
Server Error in '/pi' Application.
'Dexsys' is not a recognized built-in function name.
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.Data.SqlClient.SqlException: 'Dexsys' is not a recognized built-in function name.
Source Error:
Line 108: Dim dsTop1 As New DataSet
Line 109: Dim daTop1 As New SqlDataAdapter(strSQL3, cnIT3)
Line 110: daTop1.Fill(dsTop1)
Line 111: cnIT3.Close()
Line 112:
Source File: C:\inetpub\wwwroot\pi\admin\rptSummary.aspx.vb Line: 110
Stack Trace:
[SqlException (0x80131904): 'Dexsys' is not a recognized built-in function name.]
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +1789294
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +5340642
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +244
System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) +1691
System.Data.SqlClient.SqlDataReader.TryConsumeMetaData() +61
System.Data.SqlClient.SqlDataReader.get_MetaData() +90
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +377
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds) +1421
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite) +177
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +53
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +137
System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) +41
System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior) +10
System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +140
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +316
System.Data.Common.DbDataAdapter.Fill(DataSet dataSet) +88
admin_history.getTimes() in C:\inetpub\wwwroot\pi\admin\history.aspx.vb:109
admin_history.Page_Load(Object sender, EventArgs e) in C:\inetpub\wwwroot\pi\admin\history.aspx.vb:217
System.Web.UI.Control.OnLoad(EventArgs e) +92
System.Web.UI.Control.LoadRecursive() +54
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +772
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.34212
Here is the function causing the probelm:
Private Sub getTimes()
Dim strSQL3 As String = "select datetimestamp, cast(datepart(yyyy, datetimestamp) as varchar(4)) + '-' + cast(datepart(mm, datetimestamp) as varchar(2)) + '-' + cast(datepart(dd, datetimestamp) as varchar(2)) as yyyyddmm, datepart(hh,datetimestamp) * 3600 + datepart(mm,datetimestamp) * 60 as protime, datepart(hh,datetimestamp) * 3600 + datepart(mm,datetimestamp) + 18000 as protimeplus5 from dex_racklabels.dbo.inv_master where recid = " & Session("INVID")
Dim cnIT3 As New SqlConnection
cnIT3.ConnectionString = ConfigurationManager.ConnectionStrings("csracklabels").ConnectionString
cnIT3.Open()
Dim dsTop1 As New DataSet
Dim daTop1 As New SqlDataAdapter(strSQL3, cnIT3)
daTop1.Fill(dsTop1)
cnIT3.Close()
If dsTop1.Tables(0).Rows.Count > 0 Then
Session("intTm1") = dsTop1.Tables(0).Rows(0).Item("protime")
Session("inttm2") = dsTop1.Tables(0).Rows(0).Item("protimeplus5")
Session("yyyyddmm") = dsTop1.Tables(0).Rows(0).Item("yyyyddmm")
Session("datetimestamp") = dsTop1.Tables(0).Rows(0).Item("datetimestamp")
End If
End Sub
So I have tried to google this issue, and it always seems to be that we are passing something stupid over to SQL that is not recognized as a function.... But how am I getting 'Dexsys' when I don't have anything like that in this function?
Also when I cut out that strSQL3 and put it into SQL and run it.. it runs fine... Could it be the where at the end? How can I stop the code and display the value in the variable: Session("INVID")... I am used to just being able to do response.write(Session("INVID")) and then a response.end()...
I have come accross this issue a couple of times, and would really like to understand how to correct it and why it is happening. Thank you.
Figured it out...
1) I can use response.write and response.end lol... Stupid of me for not actually trying that...
2) Dexsys (2015-9-16) was what was in the Session Varaible... hence the error of the built in function!
Hmm i guess that your problem is with you Session("INVID") you could use the debug mode to check the variable name in the Visual Studio or show it in the Debug Session Like
Debug.Writeline(strSQL3)
'or
Console.WriteLine(strSQL3)
You could also wrap the function in Try Catch Exception so you could check better the error that is happenning. You could also get the specific version of the Exception to find more info.
Like this
Try
'your code goes here.
Catch ex As SqlException
throw
End Try

Windows Service SQL timeout exception

I have a Windows service which continuously each 10 seconds queries the SQL Server database table, and I also have a web site which also queries the same database table after 25 seconds.
After some time I get exception - server timeout exception has occurred. I went through stack-overflow site and has done the changes to SQL configuration settings but still I got the same exception. What to do?
Stack Trace
at System.Data.SqlClient.SqlConnection.OnError(SqlException
exception, Boolean breakConnection) at
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException
exception, Boolean breakConnection) at
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() at
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior,
SqlCommand cmdHandler, SqlDataReader dataStream,
BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject
stateObj) at System.Data.SqlClient.SqlDataReader.ConsumeMetaData()
at System.Data.SqlClient.SqlDataReader.get_MetaData() at
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds,
RunBehavior runBehavior, String resetOptionsString) at
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior
cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean
async) at
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior
cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String
method, DbAsyncResult result) at
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior
cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String
method) at
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior
behavior, String method) at
System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior
behavior) at
System.Data.Common.DbCommand.ExecuteReader(CommandBehavior behavior)
at
Microsoft.Practices.EnterpriseLibrary.Data.Database.DoExecuteReader(DbCommand
command, CommandBehavior cmdBehavior) at
Microsoft.Practices.EnterpriseLibrary.Data.Database.ExecuteReader(DbCommand
command) at
Microsoft.Practices.EnterpriseLibrary.Data.CommandAccessor1.<Execute>d__0.MoveNext()
at System.Collections.Generic.List1..ctor(IEnumerable1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable1 source)
at System.Runtime.Remoting.Messaging.Message.Dispatch(Object target, Boolean fExecuteInContext) at
System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage
msg, Int32 methodPtr, Boolean fExecuteInContext)
Show me the code! timeout exception usually are because you don't close the database connection.
try add the code in the final of algorithm
if (connection.State == System.Data.ConnectionState.Open)
{
connection.Close();
connection.Dispose();
}
If you use to EnterpriseLibrary, try add more time to commandTimeOut
DbCommand dbcommand = database.GetStoredProcCommand("usp_TheStoredProcedureName");
dbcommand.CommandTimeout = 120;

Error on IIS for ASP.Net Application

I am facing this error occasionally. When I restart the IIS this problem is resolved. The web server(IIS) has more than 10 sites hosted, so i can't restart it simultaneously.
System.Data.SqlClient.SqlException: Distributed transaction completed. Either enlist
this session in a new transaction or the NULL transaction. at
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean
breakConnection) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException
exception, Boolean breakConnection) at
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) at
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler,
SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject
stateObj) at System.Data.SqlClient.SqlDataReader.ConsumeMetaData() at
System.Data.SqlClient.SqlDataReader.get_MetaData() at
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior
runBehavior, String resetOptionsString) at
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior,
RunBehavior runBehavior, Boolean returnStream, Boolean async) at
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior
runBehavior, Boolean returnStream, String method, DbAsyncResult result) at
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior
runBehavior, Boolean returnStream, String method) at
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) at
System.Data.SqlClient.SqlCommand.ExecuteReader() at MyLibrary.LoadDDList(DropDownList&
curDDL, String strTextField, String strValueField, String strTable, String svarconditional)
Please help me find a solution which preferably doesn't involve restarting IIS.
You have a function called LoadDDList in the MyLibrary class.
This function needs a Try Catch around the ExecuteReader() command.
Try
mySqlCommand.ExecuteReader()
Catch sqlException As SqlClient.SqlException
If sqlException.ErrorCode >= 10 Then
Throw
End If
End Try
In the catch, you want to check for an ErrorCode less than 10. If it's less than 10, then it's just a warning message and you can ignore it. If it's 10 or greater, you need to rethrow it, since it's an actual SQL error (parsing error, invalid table, etc.).
Looking at your stack, this is just a warning and should be ignored. You need to fix your code so you won't crash IIS when you hit this SQL Warning.

Suspect malicious probing in my asp.net ecommerce app

I am receiving repeated errors from my asp.net ecommerce web app. I am beginning to suspect an automated malicious probe as this is the twelfth attempt to access ProductId=69 which does not exist (ProductId 69 was removed month ago ). I have not found any info via google and hope someone recognizes this. Here is the log entry.
Page location:
/Product.aspx?ProductId=69
Message: Violation of PRIMARY KEY
constraint 'PK_ShoppingCart'. Cannot
insert duplicate key in object
'dbo.ShoppingCart'. The statement has
been terminated.
Source: .Net SqlClient Data Provider
Method: Void
OnError(System.Data.SqlClient.SqlException,
Boolean)
Stack Trace:
at
System.Data.SqlClient.SqlConnection.OnError(SqlException
exception, Boolean breakConnection) at
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException
exception, Boolean breakConnection) at
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject
stateObj) at
System.Data.SqlClient.TdsParser.Run(RunBehavior
runBehavior, SqlCommand cmdHandler,
SqlDataReader dataStream,
BulkCopySimpleResultSet
bulkCopyHandler, TdsParserStateObject
stateObj) at
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader
ds, RunBehavior runBehavior, String
resetOptionsString) at
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior
cmdBehavior, RunBehavior runBehavior,
Boolean returnStream, Boolean async)
at
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior
cmdBehavior, RunBehavior runBehavior,
Boolean returnStream, String method,
DbAsyncResult result) at
System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult
result, String methodName, Boolean
sendToPipe) at
System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
at
GenericDataAccess.ExecuteNonQuery(DbCommand
command)
After much observation I conclude that these page requests are bots, probably search engines.
Finally identified this error as a duplicate order attempt.

Error on Execution of a SP ASP.NET C#

public DataTable RunProc(String sProcName, SqlParameter[] arrParams)
{
string sClassName = "DBAccess.RunProc";
SqlConnection objSqlConnection = null;
try
{
objSqlConnection = (SqlConnection)OpenConnection();
string sLogMessage="Executing Stored Procedure: ["+ sProcName +"] with Parameters ";
foreach(SqlParameter objParameter in arrParams)
{
sLogMessage+=objParameter.ParameterName+" = ";
sLogMessage+=objParameter.Value+" ";
}
logger.Logns(LogLevel.TraceDetail,sClassName," ",sLogMessage);
SqlCommand objSqlCommand = CreateCommand(sProcName, arrParams,objSqlConnection,null);
objSqlCommand.CommandTimeout=300;
SqlDataAdapter objSQLDataAdapter = new SqlDataAdapter(objSqlCommand);
DataSet objDataSet = new DataSet();
objSQLDataAdapter.Fill(objDataSet);
this.CloseConnection(objSqlConnection);
logger.Logns(LogLevel.TraceDetail,sClassName," ","Success Executing Stored Procedure: ["+ sProcName +"]");
this.CloseConnection(objSqlConnection);
if( objDataSet.Tables.Count>0)
{
return objDataSet.Tables[0];
}
else
{
return null;
}
//SqlParameter p= new SqlParameter("PACCOUNTNUM", IBM.Data.DB2.DB2Type.VarChar, 17, System.Data.ParameterDirection.Input, true, ((System.Byte)(0)), ((System.Byte)(0)), "", System.Data.DataRowVersion.Current, null);
}
catch(Exception Ex)
{
logger.Logns(LogLevel.TraceDetail,sClassName," ","Error Executing Stored Procedure: ["+ Ex.ToString() +"]");
this.CloseConnection(objSqlConnection);
throw(new Exception(Ex.ToString()));
}
}
The above mentioned code executes successfully in our production enviroment however all of the sudden we start getting Error in our logs
11/04/2011 09:42:46 AM|TraceDetail
|DBAccess.RunProc
| |Error
Executing Stored Procedure:
[System.Threading.ThreadAbortException:
Thread was being aborted. at
SNINativeMethodWrapper.SNIPacketGetConnection(IntPtr
packet) at
System.Data.SqlClient.TdsParserStateObject.ProcessSniPacket(IntPtr
packet, 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.SqlDataReader.ConsumeMetaData()
at
System.Data.SqlClient.SqlDataReader.get_MetaData()
at
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader
ds, RunBehavior runBehavior, String
resetOptionsString) at
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior
cmdBehavior, RunBehavior runBehavior,
Boolean returnStream, Boolean async)
at
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior
cmdBehavior, RunBehavior runBehavior,
Boolean returnStream, String method,
DbAsyncResult result) at
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior
cmdBehavior, RunBehavior runBehavior,
Boolean returnStream, String method)
at
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior
behavior, String method) at
System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior
behavior) at
System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior
behavior) at
System.Data.Common.DbDataAdapter.FillInternal(DataSet
dataset, DataTable[] datatables, 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) at
GDCIEngine.Data.PrismDb.DBAccess.RunProc(String
sProcName, SqlParameter[]
arrParams)]
The above mentioned code is used in a Web service which is called by presentation layer on the presentation layer i happen to recive HTTP Timedout however on the backend where the service is actually hosted the above mentioned exception is getting printed as soon as i do an iisreset on backend machine every thing start working as expected this error is showing up every now and then and iisreset being the only solution i have come up to cope up with it any help in this regard would be highly appreciated
Thanks
Regards
Azeem
You're getting the System.Threading.ThreadAbortException exception. It's a classic exception caused by Response.End, Response.Redirect, or Server.Transfer.
Something in your code is code is causing you to attempt to redirect. Possibly a lost database connection?
Unfortunately, the only way to fix this is to debug it or to try to fix it yourself.
Short of debugging (since it's production), you could try throwing log statements in at specific intervals throughout the function to try to narrow down where the problem is. e.g.
logger.Logns(LogLevel.TraceDetail,sClassName," ","Trace point 1")
... do some stuff ...
logger.Logns(LogLevel.TraceDetail,sClassName," ","Trace point 2")
... do some more stuff ...
logger.Logns(LogLevel.TraceDetail,sClassName," ","Trace point 1")
etc. That might be the only way to track this down.

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