Feedback
Did this article resolve your question/issue?

   

Article

INTERNAL "Communication link failure" message with Connect for ADO.Net DPE Sybase provider

Information

 
TitleINTERNAL "Communication link failure" message with Connect for ADO.Net DPE Sybase provider
URL NameCommunication-link-failure-message-with-Connect-for-ADO-Net-DPE-Sybase-provider
Article Number000185847
EnvironmentProduct : Connect for ADO.NET
Version : All supported versions
Database : Sybase
OS : All supported platforms
Application : Visual Studio .NET
Question/Problem Description
The below error is returned when executing a select query in SQL Server Reporting Services against Sybase.
Steps to Reproduce
Clarifying Information
Error MessageThrowing: DDTek.Sybase.SybaseException
Message: Communication link failure.
Source:
Stack Trace
at DDInt.Common.CommonTrace.WriteException(Exception exception, TraceExceptionAction action)
at DDTek.Sybase.SEM.Native(String resString, Int32 number, String sqlState, Exception innerException)
at DDTek.Sybase.SEM.CommunicationLinkFailure(Exception innerException)
at DDTek.Sybase.Tds.SybaseTDSReader.receive()
at DDTek.Sybase.Tds.SybaseTDSRequest.submitRequest()
at DDTek.Sybase.Tds.SybaseTDSExecuteRequest.execute()
at DDTek.Sybase.SybaseCommand.Execute(CommandBehavior behavior, Boolean needReader)
at DDTek.Sybase.SybaseCommand.ExecuteReader(CommandBehavior behavior)
at DDTek.Sybase.SybaseCommand.ExecuteDbDataReader(CommandBehavior behavior)
at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)
at DDTek.Sybase.ReportingServices.DataExtensions.CommandWrapper.ExecuteReader(CommandBehavior behavior)
at Microsoft.ReportingServices.QueryDesigners.MultiThreadedQueryResultsHelper.AsyncExecuteReader(IDbCommand command, CommandBehavior behaviour)
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.AsyncProcessMessage(IMessage msg, IMessageSink replySink)
at System.Runtime.Remoting.Proxies.AgileAsyncWorkerItem.ThreadPoolCallBack(Object o)
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
Defect NumberDefect 43503
Enhancement Number
Cause
Resolution
Fixed in hot fix 4.2.0.7505.
Refer to Connect for ADO.NET hot fix download and install instructions for instructions on how to download and install the hot fix.
Workaround
Notes
Last Modified Date10/29/2019 2:57 PM
Files
Disclaimer The origins of the information on this site may be internal or external to Progress Software Corporation (“Progress”). Progress Software Corporation makes all reasonable efforts to verify this information. However, the information provided is for your information only. Progress Software Corporation makes no explicit or implied claims to the validity of this information.

Any sample code provided on this site is not supported under any Progress support program or service. The sample code is provided on an "AS IS" basis. Progress makes no warranties, express or implied, and disclaims all implied warranties including, without limitation, the implied warranties of merchantability or of fitness for a particular purpose. The entire risk arising out of the use or performance of the sample code is borne by the user. In no event shall Progress, its employees, or anyone else involved in the creation, production, or delivery of the code be liable for any damages whatsoever (including, without limitation, damages for loss of business profits, business interruption, loss of business information, or other pecuniary loss) arising out of the use of or inability to use the sample code, even if Progress has been advised of the possibility of such damages.