DB Engine :: Connection Closed From Application End
Jun 30, 2015
The application server gets below error while the job is being run intermittently:
An error occurred while performing connection management
com.microsoft.sqlserver.jdbc.SQLServerException: The connection is closed.
 at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:171)
 at com.microsoft.sqlserver.jdbc.SQLServerConnection.checkClosed(SQLServerConnection.java:319)
 at com.microsoft.sqlserver.jdbc.SQLServerConnection.prepareStatement(SQLServerConnection.java:1839)
[Code] ....
There is no error reported in SQL logs.
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Jul 23, 2005
Hi there,I sincerely hope that someone out there can help. I have twoinstances of the SQL 2000 Desktop Engine running. One is on my localmachine for development and the other is on another machine on ournetwork which is the production environment. I have built an Access2003 front end application which connects to this database. Thisworks fine locally, as you would expect. I successfully installed thedatabase on the production machine and am able to connect to it viaAccess 2003 (using the Data Link Properties window) and from thirdparty database manager software (similar to Enterprise Manager). I amnot able to to connect to the database via my application.I am using the "sa" account with a strong password. This is myconnection string:strConnection = "Provider=sqloledb;DataSource=server02;UserId=sa;Password=strong;Initial Catalog=Test"The error I'm getting is:"Connection cannot be used to perform this operation. It is eitherclosed or invalid in this context."The connection string is the only thing that changes in my code when Iswitch from my local to my production database. Is there some reasonthat I can't use the "sa" account in this fashion that I'm not awareof? I'd rather not use integrated security for simplicity's sake asthis is a small, internal application. Also, I would have thoughtthat if that was the issue, I couldn't use "sa" at all, even locally.I'm going to post to the Access group as well but thought someone heremight have some advice to offer as well.Thanks,Barb
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Dec 7, 2006
This is my first time to deploy an asp.net2 web site. Everything is working fine on my local computer but when i published the web site on a remote computer i get the error "Failed to generate a user instance of SQL Server due to failure in retrieving the user's local application data path. Please make sure the user has a local user profile on the computer. The connection will be closed" (only in pages that try to access the database)
Help pleaseee
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Apr 26, 2007
I am accessing SQL2005 with C# code using OleDbConnection.
A try and catch block catches the following error once a while between the Open() and Close() of the connection:
ExecuteNonQuery requires an open and available Connection. The connection's current state is closed.
I do not even have any idea where to start to debug this. The ExecuteNonQuery() runs a delete SQL query. It works 99.9% of the time. I do not see anything wrong when this error happens.
Any hint would be greatly appreciated.
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Mar 31, 2014
I have been investigating the number of connections activeinactive to a certain database server and I have stumbled across an application which seems to not be clearing its database connections.For one instance of a client there was >70 sql connections which eventuated from the closing and reopening one 1 screen in the culprut app. Once the application was closed all of the connections are recycled but its evident that within the application itself it is not correctly reusing already existing open connections.
I have raised a point with the main programmer that we need to investigate more into how the application is managingot managing its ADO .NET connections to SQL.
I am starting with doing some reading here URL... and I was hoping to get some more information about the possible impact of excessive sql connections on the SQL Server itself. Our organization is quite lucky in that our SQl Servers are Overspecced given their workload, bearing that in mind I would like to dig a bit deeper to get some stats if I can to highlight the scope of the issue to the managementprogrammers.Our SQL server peaks at 6500 processes and a good 70% of those are due to this applications mis-management of its sql connections.
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Jan 27, 2007
I have the Function, that fires from onLoad even of one of the asp:Label controls on my main page.
Here is it's code:
SqlConnection conn = new SqlConnection(); conn.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["UkraineConnectionString"].ToString(); SqlCommand comm = new SqlCommand("SELECT [Greeting] FROM [Misc]", conn);
try { conn.Open(); } catch { Response.Write("Error opening connection in Page_Load of default.aspx to retrieve the greetings"); }
string MyGreet = (string)comm.ExecuteScalar();
Greetings.Text = MyGreet;
try { conn.Close(); } catch { Response.Write("Error closing connection in Page_Load of default.aspx after retrieving the greetings"); } }
When it gests to conn.Open() in the debugging mode I see that the ServerVersion = 'conn.ServerVersion' threw an exception of type 'System.InvalidOperationException'.
The most interesting thing is that it used to work before.
Here is the connection string it retrieves fine.
"Data Source=MDM1;AttachDbFilename=|DataDirectory|Ukraine.mdf;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"
As I said it used to work, but one day I tried to access the web site and it said this error that I get, that the connection is closed. Then I was using the SQL Server Express. When in the Visual studio if I would run this same site in debug, everything was working fine. I decided to uninstall the SQL Express and installed the SQL Server.
If I open the SQL Server Managment Studio in the Server name field I see MDM1(this is the name of the PC, but probably it is the same name for the Server. Well, in the MAnagment Studio it conects fine to the MDM1 so it is no probably the naming problem. Ithink it has something to do with permisssions.
If someon can - please help. Thanks.
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Jan 13, 2000
That is an app ACCESS 2000 wih Named Pipe ODBC to SQL Server 6.5.
After 10 minutes without use this app, the connection closed !
Have-you idea for correct this probleme ?
Regards
Alain
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Dec 7, 2007
I am using MS JDBC driver 2005 1.2 and in-house written connection pooling that was working fine for a number of years. This combination worked OK with SQLserver 2000. But recently we switched to SQLServer 2005 (x64) on WIN Server 2003 Standard x64 eddition. Everything seems work OK during business hours, however, after business hours when there are lesser users and connection stays idle for sometime, I am getting the following error:
com.microsoft.sqlserver.jdbc.SQLServerException: The connection is closed.
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.checkClosed(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.setAutoCommit(Unknown Source)
at com.nms.serverframework.dbaccess.OnlineTransactionManager.freeConnection(OnlineTransactionManager.java:420)
at com.nms.serverframework.dbaccess.OnlineTransactionManager.releaseConnection(OnlineTransactionManager.java:707)
at com.nms.serverframework.dbaccess.OnlineTransactionManager.releaseConnection(OnlineTransactionManager.java:688)
at com.nms.serverframework.dbaccess.OnlineTransactionManager.finalize(OnlineTransactionManager.java:399)
at java.lang.ref.Finalizer.invokeFinalizeMethod(Native Method)
at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:83)
at java.lang.ref.Finalizer.access$100(Finalizer.java:14)
Any help would be appreciated
thanks in advance
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Jan 21, 2008
Our system administrators have renamed the server that our Reporting Service 2000 runs on. The database that RS2000 uses is on the same server.
Now when I navigate to the Report Manager, the following error appears:
The underlying connection was closed: The remote name could not be resolved
Obviously I need to tell Reporting Services 2000 the name of the new server (even though it's just the same server??). Where do I do that?
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Sep 26, 2007
hye everyone,
i have problem .
when i deploy the report, its failed and the error mesage :
The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. d:
ptdemoClaimOTReport.rdl
any suggestion or idea
thank in advance
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Jun 26, 2007
Hi all
I have run a stranger issue:
I use ADO.NET 2.0 to access sql2000 database. during the whole process, I need stop sql server service which the program is connecting. my setup is like following:
1.Open a conection to access table and then close the connection;
2.restart sql server service ;
3.Re-open a connection to access table and then an exception was thrown out:
A transport-level error has occurred when sending the request to the server. (provider: TCP Provider, error: 0 - An existing connection was forcibly closed bythe remote host.)
4. try re-open a connection to access table and then no exception was thrown out.
I think this maybe related with connection pool. any guy know the detail, please give me a response. Thank you very much!
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Aug 21, 2007
Hi experts,
I have sql express installed on my machine and i'm using visual studio to create database files. After i've build a connection to my database file thru Server Explorer (choose Add attach files) i opened Management Studio Express and found that the new database has been attached to sqlexpress database engine----technically speaking it's under the user instance which i use to run my visual studio. right?? that's totally fine.My question is, after i'v closed the connection in visual studio, that attached database file still exist.I want it to be detached immediately after i've closed the connection in visual studio.How can i do that?
I've searched through internet and was told that sp_config can solve this problem by setting the user instance time out. I ran sp_config against my database but did not find that item. Could anybody give me some directions? thanks in advance.
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Feb 13, 2006
Hi,
I'm running a website using MSSQL 2000. Sometimes (not always) I get this error message on the website:
A transport-level error has occurred when sending the request to the server. (provider: TCP Provider, error: 0 - An existing connection was forcibly closed by the remote host.)
I have also websites running with MySQL and those don't have this problem.I searched google but I couldn't find usefull information on this problem.
Someone who knows what's going on here ?
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Nov 20, 2007
Help.
Today while trying to get the Windows NT security working i upgraded my reporting services IIS server to a domain controller and it screwed up all of my settings. First it changed password for ASPNET user and so I reinstalled .net framework.
Now i get the
The underlying connection was closed: Could not establish secure channel for SSL/TLS.
error message.
I do not want to use an SSL certificate for I do not have one right now. How can I configure my SQL Server 2000 Reporting services to not use SSL. I see they added something to SQL Reporting Services 2005 in the configuration tools but I cant find out how to modify the config files with SQL 2000 RS to eliminate the SSL.
Please help, my company is down waiting for me to get this back up.
Thanks a ton,
deep
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Jul 22, 2005
I am getting this error in Enterprise Manager:
TCP Provider: An existing connection was forcibly closed by the remote host.
But, my web app can still connect just fine to the db, so it's still in
the same place with the same login/password. And my registration
in EM was working just fine (for years) until yesterday I got this
error. I've tried deleting the registration and re-creating it
but the same thing. What could have gone wrong to cause this to
happen?
Thanks for any pointers, I have no idea where to start looking on this one, the host says they haven't changed anything...
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Sep 18, 2007
Hi,
We have a mature instance of SQL Server 2000 reporting services that has stopped working for no apparent reason. When browsing to http://reportserver/reports we receive the following error
Error
The underlying connection was closed: Unable to connect to the remote server.
Home
The installation is running on three servers - 1 sql cluster (sql 2000 sp4) and two IIS servers all running windows 2000 sp4.
The Reportserver website runs using identity impersonation using the .net machine.config file pointing to an encrypted registry key entry holding the userid and password. It has been moved from the default website to it's own website but has been working with no issues for years. No obvious patches have been applied or security changes made that could effect the application
When browsing to http://reportserver/reportserver we can view the loaded reports and even run them with no issues, only ther report manager isn't working.
I have tried changing the impersonation registry key ( using aspnet_setreg ) and the account the reportserver web service runs under ( using the rsconfig utiltity) to be a domain admin to no effect and I have checked and set specififc permission for the reportserver database on all registry keys to no effect.
None of the online solutions for this issue have worked for me. Any help or ideas would be greatly appreciated
Cheers
Daniel Worby
Database Administrator
AMP Capital Investors
(p) +61 2 9257 1746
(m)+61 434 327 150
(f) + 61 2 9257 1090
(e) daniel.worby@ampcapital.com
(w) www.ampcapital.com.au
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Feb 10, 2008
We have a nagging issue here in our application side, which I was trying to troubleshoot and reach no where. Can I have your valuable inputs for resolving/understanding the root cause of the issue?
3709-The connection cannot be used to perform this operation. It is either closed or invalid in this context
This error is not coming regularly (twice it happened and after the program is running successfully with out any problem). Problem having exe is running every 2 minutes interval.
Most of the sites saying this is something related to code written in the application but if that is the case why this error is not happening continuously? The problem having exe is running past 4 months with 2 minutes interval and suddenly thrown this error.
I found one MS site describing about this error but not able to find any fixes for this issue (http://support.microsoft.com/kb/839428). We are on the process of upgrading the operating system with SP2; will this help us to resolve this issue? Please advice.
Details
1. Windows 2003 with SP1
2. MDAC 2.8
3. SQL 2005 with SP1
4. VB Application.
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Sep 21, 2007
I am trying to setup SQL Server 2000 Reporting services with an SSL connection. The SQL Server (Windows Server 2003 SP2 Standard) and Reporting Server (Windows Server 2003 R2 SP2 Standard) are on separate machines. I have tried setting up Certificates from both and Stand-Alone and Enterprise CA. I have tried several combinations of the Issue To name (server | server.company | server.company.local) I have modified the rsWebApplication.config and rsReportServer.config to match the certificate€™s Issue to exactly. I have tried installs with both Domain Accounts and NT AUTHORITYSYSTEM logins. I have managed to get https://server/ReportServer to work but I have had no luck with the report manager https://server/reports. How do I fix this error?
Thankyou
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Nov 17, 2006
I'm using SQL Server 2005 (SP1) Reporting Services on Windows Server 2003 SP1. I access the report server from Internet using SSL, but the server is not exposed directly to the internet. It is behind a firewall, where the required ssl port is setup and is working fine.
In my Reporting Server, the /ReportServer folder works perfect and I can navigate and view all reports. It is the /Reports folder the one that does not work fine. I can enter the /Reports folder, and can list all the reports. But, when I select one of the reports, and it starts rendering, I get the error message:
"The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. The remote certificate is invalid according to the validation procedure."
How can I fix this?
Thanks,
Julio
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Apr 29, 2006
We are getting a problem when the below error Log
Server: SQL Server 2005 and SP1.
Then, All the Web Servers will drop all connections and stop the network service. Later, the network service will start up automatically but all the before service is dropped.
We would like to know the error coming from?
Error Log
================
TCP Provider, error: 0 - An existing connection was forcibly closed by the remote host
Event Type: Warning
Event Source: ASP.NET 2.0.50727.0
Event Category: Web Event
Event ID: 1309
Date: 4/29/2006
Time: 10:48:47 AM
User: N/A
Computer: 88DBWEB0
Description:
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 4/29/2006 10:48:47 AM
Event time (UTC): 4/29/2006 2:48:47 AM
Event ID: 77910e6688484582bb1c29808feef883
Event sequence: 128
Event occurrence: 13
Event detail code: 0
Application information:
Application domain: /LM/W3SVC/24978983/Root/ph-3-127907437121075328
Trust level: Full
Application Virtual Path: /ph
Application Path: D:DB88ph
Machine name: 88DBWEB0
Process information:
Process ID: 1568
Process name: w3wp.exe
Account name: NT AUTHORITYNETWORK SERVICE
Exception information:
Exception type: SqlException
Exception message: A transport-level error has occurred when sending the request to the server. (provider: TCP Provider, error: 0 - An existing connection was forcibly closed by the remote host.)
Request information:
Request URL: http://88db.jobsdb.com/ph/Views/MediaUpload.aspx?PostID=50202&Type=I&panelid=postimagediv
Request path: /ph/Views/MediaUpload.aspx
User host address: 192.168.10.10
User: 50077
Is authenticated: True
Authentication Type: Forms
Thread account name: NT AUTHORITYNETWORK SERVICE
Thread information:
Thread ID: 15
Thread account name: NT AUTHORITYNETWORK SERVICE
Is impersonating: False
Stack trace: at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParserStateObject.WriteSni()
at System.Data.SqlClient.TdsParserStateObject.ExecuteFlush()
at System.Data.SqlClient.TdsParser.TdsExecuteRPC(_SqlRPC[] rpcArray, Int32 timeout, Boolean inSchema, SqlNotificationRequest notificationRequest, TdsParserStateObject stateObj)
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 System.Web.SessionState.SqlSessionStateStore.DoGet(HttpContext context, String id, Boolean getExclusive, Boolean& locked, TimeSpan& lockAge, Object& lockId, SessionStateActions& actionFlags)
Custom event details:
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
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Nov 14, 2005
If you connect to a server and open a query in SQL Managment studio (2005) and looses connection and then regain the connection, when you try to run the query it gives me a "TCP Provider, error: 0 - An existing connection was forcibly closed by the remote host." This happens against both 2005 and 2000 servers. If I re-run the query it works. However, this happens in our VB.NET app as well for clients with Wireless connections. So, something has changed in Framework 2.0 regarding this, does anyone know how to tell the client to not throw this error and just try connecting the server instead which will work?
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Apr 11, 2008
Hi,
For a long time I've had SQL Server 2000 with RS on a Server2003 machine.
When I want to publish a report from my Dev box, I remove anon. access on the Production machine, deploy the report, then go into report manager to tweak a couple of parameters. I then re-enable anon. access so users can continue.
Yesterday, I removed anon. access and deployed the report but when I went into Report Manager I received the above error message... "The underlying connection was closed: An unexpected error occurred on a receive."
I can get into report manager with anonymous access enabled, but I don't have authority to do anything.
What's happened!!!? More importantly, how do I fix it?
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Jan 3, 2006
What does this error mean? I get this in the transmission_status column of sys.transmission_queue
An error occurred while receiving data: '10053(An established connection was aborted by the software in your host machine.)'.
Also, does the number in this message correspond to error 10053 in sys.messages?
Thanks
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Sep 17, 2015
SQL Server 2008 R2: How security log is much secure than application log?
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Sep 14, 2005
I'd like to build a simple search engine against Sql Server. Does .NET Framework provide some class to help in this task? From what I've heard there is an interface which implements it..
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Oct 5, 2015
Our application team make design changes of the database in their development server and asks me to restore the bak file from the development server into the production server with replace command. The database in the production server is connected to the application server and so when I try to restore the database error message comes that the database is in use.
So first I find out the sessions with the logins who is the user in the database with sys.dm_exec_sessions joined with sys.dm_exec_requests and then kill the sessions. And after that it is possible to restore. But many times when I kill the session and try to restore in between new sessions comes into effect which are generated from the web server and many times I have to resubmit the query in the dmv's and find the sessions and kill it again and again before restore can be done. Is there any correct method to restore an active database which is being accessed by the application from a web server with out stopping the web server?
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Jun 15, 2015
What are the optimal values for this parameters? How it depends from queries characteristics?I create an application that insert some data in database. It'll work on different servers with different load and performance. I want to prevent timeout exceptions.
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Oct 27, 2015
I want to create one bacpac file but it does fails, Need I delete all the descriptions before to begin? How odd! I don't understand why can we choose some scripting options such as we did on 'Generate Scripts' task..I get errors such as: dbo.table.field.Ms_Description is not supported when used as part of a data package
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Jun 12, 2015
We have an issue where servers goes slow from morning 2 AM EST to 10 AM EST.
Using SP_WhoIsActive we somehow found that there is netbackup from Symantec which runs during that time phrase.
As per Symantec team there backup should get over by 5 AM EST, per their testing for almost 100 Dbs on the server( not big in size , all of them in total would be 60 GB).
Using SP_whoisactive we only see, start time of that virtual backup occurring on tape, for one database at time.
So is there a way we actually determine when does the above backup kicks and stops?Also, could SQL server be the problem in making these backups run slow or there is something else i need to monitor?
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Aug 11, 2005
Dear members,I'am thinking about the "best" way to connect to my sql-server viaADO.Net (if there is a best way).My application uses the sql-server very intensively. At the momentevery database-operation opens a connection, executes and then closesthe connection.Another way would be to use only a single connection to the database,which is opened when the application starts.What do you think is the better way to get a high performing sqlserver: using one single application connection vs. using oneconnection for every operation?Cheers, Sebastian
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Mar 28, 2007
what can cause the above error when connecting to an endpoint via a c# app? the app, and sql are both on my machine ( im just doing this for test purposes and to learn something new.)
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Mar 13, 2008
First off I understand that it is a horrible idea to run extremely large/long running reports, but sometimes it ends up being the best possible solution due to external forces.
I've got a 25,000 page report that we recently converted from crystal reports to SSRS. The SSRS server is a 64bit 2003 server with 32 gigs of ram running SSRS 2005. When running the report through the report manager web application, it renders in the browser/viewer after about 12 minutes. Exporting to pdf through the browser/viewer in the report manager takes an additional 55 minutes. It does work and it produces a whopping 1.03gb pdf.
Unfortunately, I've run into a problem when trying to do this from a console application using the SSRS client API. After about 30-35 minutes I get an exception on the client with the following error:
Exception Message: The underlying connection was closed: An unexpected error occurred on a receive.
InnerException = Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.
Here is the api call:
Code Snippet
byte[] m_data = reportingService.Render(this.ReportPath, this.ExportFormat, null,
deviceInfo, selectedParameters, null, null, out encoding, out m_mimeType,
out usedParameters, out warnings, out streamIds);
Here are some things I've tried so far:
set the HttpRuntime ExecutionTimeout value to 3 hours on the report server
disabled http keep alives on the report server
increased the script timeout on the report server
set the report to never time out on the server
set the report timeout to several hours on the client call
Disabled antivirus on the client side, and verified there was no antivirus running on the reporting server.
Tried using default credentials in the ReportingService object as opposed to supplying credentailsAny ideas would be appreciated. I understand the best solution is to split the report up into smaller reports, which is the backup option, but being able to keep it as one report is the goal.
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Mar 6, 2006
I got the sql2005 std edition at the msdn rollout, and the vs2005 studio. I uninstalled sql2000 and now, cannot connect to the database engine.
I get the following error message with a link to an page that offers no info. What's up and how can I get it to work? Please, help.
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=2&LinkId=20476
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