Hi,
Every once in a while, users get the following error from my
application:
System.Data.SqlClient.SqlException: A transport-level error has
occurred when receiving results from the server. (provider: TCP
Provider, error: 0 - The specified network name is no longer
available.)
at System.Data.SqlClient.SqlConnection.OnError(SqlExc eption
exception, Boolean breakConnection)
at System.Data.SqlClient.SqlInternalConnection.OnErro r(SqlException
exception, Boolean breakConnection)
at
System.Data.SqlClient.TdsParser.ThrowExceptionAndW arning(TdsParserStateObject
stateObj)
at
System.Data.SqlClient.TdsParserStateObject.ReadSni Error(TdsParserStateObject
stateObj, UInt32 error)
at System.Data.SqlClient.TdsParserStateObject.ReadSni (DbAsyncResult
asyncResult, TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParserStateObject.ReadPac ket(Int32
bytesExpected)
at System.Data.SqlClient.TdsParserStateObject.ReadBuf fer()
at System.Data.SqlClient.TdsParserStateObject.ReadByt e()
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior,
SqlCommand cmdHandler, SqlDataReader dataStream,
BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
at System.Data.SqlClient.SqlDataReader.ConsumeMetaDat a()
at System.Data.SqlClient.SqlDataReader.get_MetaData()
at
System.Data.SqlClient.SqlCommand.FinishExecuteRead er(SqlDataReader ds,
RunBehavior runBehavior, String resetOptionsString)
at
System.Data.SqlClient.SqlCommand.RunExecuteReaderT ds(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(Com mandBehavior
behavior, String method)
at System.Data.SqlClient.SqlCommand.ExecuteReader(Com mandBehavior
behavior)
It usually is in a background thread which polls the database every 30
seconds, but it's happened when they were actually saving data in my
application as well. Once, the server disappeared for a minute. Any
idea what might be causing this problem? We're not having any power /
router problems.
Andy
1  3877 
"Andy" <an***@med-associates.comwrote in message
news:11**********************@s34g2000cwa.googlegr oups.com...
Hi,
Every once in a while, users get the following error from my
application:
System.Data.SqlClient.SqlException: A transport-level error has
occurred when receiving results from the server. (provider: TCP
Provider, error: 0 - The specified network name is no longer
available.)
at System.Data.SqlClient.SqlConnection.OnError(SqlExc eption
exception, Boolean breakConnection)
at System.Data.SqlClient.SqlInternalConnection.OnErro r(SqlException
exception, Boolean breakConnection)
at
System.Data.SqlClient.TdsParser.ThrowExceptionAndW arning(TdsParserStateObject
stateObj)
at
System.Data.SqlClient.TdsParserStateObject.ReadSni Error(TdsParserStateObject
stateObj, UInt32 error)
at System.Data.SqlClient.TdsParserStateObject.ReadSni (DbAsyncResult
asyncResult, TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParserStateObject.ReadPac ket(Int32
bytesExpected)
at System.Data.SqlClient.TdsParserStateObject.ReadBuf fer()
at System.Data.SqlClient.TdsParserStateObject.ReadByt e()
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior,
SqlCommand cmdHandler, SqlDataReader dataStream,
BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
at System.Data.SqlClient.SqlDataReader.ConsumeMetaDat a()
at System.Data.SqlClient.SqlDataReader.get_MetaData()
at
System.Data.SqlClient.SqlCommand.FinishExecuteRead er(SqlDataReader ds,
RunBehavior runBehavior, String resetOptionsString)
at
System.Data.SqlClient.SqlCommand.RunExecuteReaderT ds(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(Com mandBehavior
behavior, String method)
at System.Data.SqlClient.SqlCommand.ExecuteReader(Com mandBehavior
behavior)
It usually is in a background thread which polls the database every 30
seconds, but it's happened when they were actually saving data in my
application as well. Once, the server disappeared for a minute. Any
idea what might be causing this problem? We're not having any power /
router problems.
Most likely the network connection is being severed and the connection pool
returns an invalid connection. Refer to the following article for some
advice. http://www.ondotnet.com/pub/a/dotnet.../connpool.html
PS This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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