Changing connection string host from localhost to IP address produces error
Hi all,
First of all, thanks in advance for your help. Second, I know next to nothing about Oracle database administration, so please be patient, but I want to understand things, rather than just running down the Google rabbit hole with guess-and-check until things happen to work and I don't know why.
I've got a connection string that I'm using to connect to a local Oracle database I'm using for testing. I have the 11g installed and the 11.1.0.7 64-bit client (as my application is a 64-bit application) installed, both locally on my development machine. I've got a connection working using the following connection string:
Data Source=(DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))(CONNECT_DATA = (SERVER = DEDICATED)(SERVICE_NAME = mywindowslogin.path.to.me)));User Id=********;Password=********;However, when I change "localhost" to my IP address, my computer name, or anything else, I get "ORA-12541: TNS:no listener".
The tnsnames.ora in my database home is as follows - it was set up for me automatically when I installed the database. mywindowslogin.path.to.me doesn't point to anywhere, which I assume is correct, but my computer is on the path.to.me domain.
LISTENER_MYWINDOWSLOGIN =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
MYWINDOWSLOGIN =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = mywindowslogin.path.to.me)
)How can I resolve this issue?
Edited by: Don on Jul 14, 2010 8:31 AM
Does setting the environment variable affect all installations? Only two of my four Oracle Homes have a tnsnames.ora file, or event a NETWORK/ADMIN location, so I'm not sure where to put tnsnames.ora in those Homes. I copied the tnsnames.ora for my database to the one other Home that had a NETWORK/ADMIN location, but I'm still getting "ORA-12541: TNS:no listener" if I don't use "localhost" as the host.
Thanks!
Edited by: Don on Jul 14, 2010 12:08 PM
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Hi,
I have copied a number of SSID packages from a live server to my test server and am trying to get them up and running but I have a problem with the connection. The only thing that is different is the server name. I decided to keep the same connection in the connection manager as it is referenced in a dtsConfig file. I changed the dtsConfig file to reference the new servername [Data Source= new test server name]. I also check my paths and they are pointing to the correct config locations etc.
I found this post which was similar to my problem but I still get problems with the connection
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1319961&SiteID=1
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Once I saved this, the connection string changed to my current test server in the properties of the connection. However when I run the package I get the following error:
Error: 0xC0202009 at ReportsImport, Connection manager "myconnectionstring": SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005.
An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Login timeout expired".
An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "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.".
An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Named Pipes Provider: Could not open a connection to SQL Server [53]. ".
Error: 0xC020801C at Myprocess import from file, BuyAtReportsImport [79]: SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER. The AcquireConnection method call to the connection manager "myconnectionstring" failed with error code 0xC0202009. There may be error messages posted before this with more information on why the AcquireConnection method call failed.
Error: 0xC0047017 at Myprocess import from file, DTS.Pipeline: component "ReportsImport" (79) failed validation and returned error code 0xC020801C.
Error: 0xC004700C at Myprocess import from file, DTS.Pipeline: One or more component failed validation.
Error: 0xC0024107 at Myprocess import from file: There were errors during task validation.
So even if I change the existing connection properties and save and Build my package again, my connection properties (connectionstring, servername etc) all revert back to its original data source when I re-open the package. Simply it does not seem to be saving the connection properties i put in.
What am I doing wrong or how can I change the existing connection manager to look at the new server. The database is the same and I have full admin privilege on the server.
I don't want to recreate my packages as there are alot and they are not simple.
After changing the connection properties, saving and reloading I get a connection error. But this is because it is not retaining the new connection manger setting i entered.
Incidentally - I created a new SSID to perform a simple connection and write to the the server and it was OK so there is no problem with actually seeing the my test server.
Thanks in advanceYes, the package is in visual studio and I have executed it. There are no errors but in the output i have the error message about my connection. My dtsConfig file is added to the project in the 'Package Configuration Organizer' and path and files are correct. This is the output error:
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+ ";PORT=" + Port
+ ";DATABASE=" + ServerNamespace
+ ";UID=" + Username
+ ";PWD=" + Password;
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connectionInfo.Type = ConnectionInfoType.CRQE;
return connectionInfo;
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foreach (CrystalDecisions.CrystalReports.Engine.Table table in reportDocument.Database.Tables)
TableLogOnInfo tableLogonInfo = table.LogOnInfo;
tableLogonInfo.ConnectionInfo = connectionInfo;
table.ApplyLogOnInfo(tableLogonInfo);
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foreach (Section section in reportDocument.ReportDefinition.Sections)
foreach (ReportObject reportObject in section.ReportObjects)
if (reportObject.Kind == ReportObjectKind.SubreportObject)
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Sample #2 (the same as Sample #1 above, only the ConnectionInfo method is different - which is all that I included here)
private static ConnectionInfo CreateConnection(string Server,
int Port,
string ServerNamespace,
string Username,
string Password)
ConnectionInfo connectionInfo = new ConnectionInfo();
string connString = "DRIVER=InterSystems ODBC;SERVER=" + Server
+ ";PORT=" + Port
+ ";DATABASE=" + ServerNamespace
+ ";UID=" + Username
+ ";PWD=" + Password;
connectionInfo.Attributes.Collection.Add(new NameValuePair2(
DbConnectionAttributes.CONNINFO_DATABASE_DLL, DbConnectionAttributes.DATABASE_DLL_CRDB_ODBC));
connectionInfo.Attributes.Collection.Add(new NameValuePair2(
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Code Sample #1 (This is using the connection string, and will cause a the "Database Login" window to be displayed - the first scenario from above) -- The code samples appear to be too long to post, so I will add them as seperate replies.
rd = new ReportDocument();
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rd.Load(fileName, OpenReportMethod.OpenReportByDefault);
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// Create the connection object
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SetDBLogonForSubreports(connectionInfo, rd);
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connectionInfo.Type = ConnectionInfoType.CRQE;
return connectionInfo;
// Code smple continued in the next reply -
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Message was edited by:
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How to change Connection String property in DataLink tab with Database options at Runtime?
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