Oracle Error Code Ora-12541
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ora-12541 tns no listener 11g ORA-12541: TNS: no listener Oracle Tips by John Garmany You Asked: I get the ORA-12541Ora-12541: Tns:no Listener Linux
error message when I try to connect through Forms6i and Reports6i Builder. I've started the listener also. I have no problems accessing the database through SQL*Plus. I've checked the listener.ora and
Ora 12541 Tns No Listener Toad
tnsnames.ora files and everything seems okay. We Said: From the docs: ORA-12541: TNS no listener Cause: Listener for the source repository has not been started. Action: Start the Listener on the machine where the source repository resides. Basically the Forms server could not find the listener. First check the tnsnames.ora file and ensure that it points to the correct server and ora 12541 tns no listener oracle 11g client port. If the Forms server is on another machine, test the TNS resolve with tnsping from the command prompt. Finally, check the listener. First, ensure that your listener service is running. C:\Documents and Settings\ME>lsnrctl stat This should show the status of the listener and the services it is listening for. Remember that when you run SQL*Plus on the database server, it does not need the listener to connect unless you specify the database tnsnames.ora entry.Try to start the listener service using lsnrctl from DOS prompt. set ORACLE_HOME= cd %ORACLE_HOME%/bin lsnrctl start LISTENER If the listener service is not running, re-start the listener service using the Windows task manager or use the DOS command line utility to re-start the Windows service with the "net start" command: C:\Documents and Settings\ME>net start OracleOraDb10g_home1TNSListener You can use the lsnrctl status command to verify that the listener is down, and lsnrctl start to start your listener. If you are on Windows, also verify that the listener service is running. Here are more notes on lsnrctl: Oracle listener lsnrctl command Oracle listener lsnrctl command Oracle listener s
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Tns No Listener Error In Oracle 11g
Focus Client Opportunities Support Solutions Training Legacy to Oracle WebCenter Oracle Documents Cloud Service tns-12560: tns:protocol adapter error Next Generation AP Automation & Dynamic Discounting Oracle WebCenter Contract Lifecycle Management (CLM) Search ORA-12541: TNS: no listenerYou are here: Home ora-12514 tns no listener / Resources / ORA-12541: TNS: no listener ORA-12541 In Oracle, a listener is a process that runs on the database server computer. It manages the traffic of incoming connect requests from clients to the http://www.dba-oracle.com/t_ora_12541_tns_no_listener.htm database server, and therefore, is very important. Each time a client requests a network session with a server, it is the listener that receives this client request. The listener will check to see that the client information matches the listener information, and thereby grant (or deny) the request. To learn more about listeners, click here. Generally, the listener.ora file can be found in $ORACLE_HOME/network/admin or ORACLE_BASE\ORACLE_HOME\network\admin on Unix and Windows https://www.tekstream.com/resources/ora-12541-tns-no-listener/ platforms respectively. When there is any problem with the listener, the user will likely run into ORA-12541. The Problem The ORA-12541 message reads, “TNS no listener.” This happens if the listener is either down as it attempts to make a connection or if it has not been started or improperly configured. In addition, it may be caused by a connectivity problem with the network. To figure out what may be causing the problem, follow the solution steps outlined below. The Solution First, make sure that the listener is up and running. To do this, go to the Control Panel into Services under NT or listener control program (LSNRCTL). C:\Documents and Settings\ME>lsnrctl stat This should show the current status of the listener. If the listener is currently not running, re-start the listener service by running the “net start” command by filling in “XX” with the version being used: C:\Documents and Settings\ME>net start OracleOraDbXXg_home1TNSListener If the listener is up and running, the problem may lie with the listener not having been associated with the correct instance or protocol. To make sure all instances are correct, you can obtain basic information about the listener and the configuration settings by simple commands, such as the STATUS command. T
example inside Event Log Technote (troubleshooting) Problem(Abstract) User tries to launch Controller. User receives error message on http://www.ibm.com/support/docview.wss?uid=swg21361712 screen. If they look at their client PC's 'application' Event Log, there is an entry there, corresponding with the time when they tried to logon. On the Controller application server, there are periodic VBRUNTIME errors. Symptom Client PC screen: An error occurred while trying to access the server Client PC Event Log: Event Type: no listener WarningEvent Source: Cognos ControllerEvent Category: NoneEvent ID: 0Date: 1/31/2008Time: 10:20:10 AMUser: N/AComputer: PCNAMEDescription:Error occured at 1/31/2008 10:20:10 AM in Cognos Controller, Error No=5, Source=FrangoDirect.ServerInfoD.GetServerInfo#ControllerProxyClient, Description=System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.Runtime.InteropServices.COMException (0x80004005): ORA-12541: TNS:no listener at FrServerB.ServerInfoClass.GetServerInfo(String sGuid, String sUser) at Cognos.Controller.Proxy.CCRWS.ServerInfo_GetServerInfo(String sGuid, String sUser) --- End of inner exception stack trace ---, tns no listener HelpFile= HelpContext=0 Application Server Event Log: Event Type: Warning Event Source: VBRuntime Event Category: None Event ID: 1 Date: 1/31/2008 Time: 10:08:02 AM User: N/A Computer: SERVERNAME Description: The VB Application identified by the event source logged this Application FrSrvFunc: Thread ID: 3424 ,Logged: Error occured at 1/31/2008 10:08:02 AM in FrSrvFunc, Error No=-2147467259, Source=Server function:Db_CreateConnection(..) , Description= ORA-12541: TNS:no listener, HelpFile= HelpContext=0 And: Event Type: Error Event Source: VBRuntime Event Category: None Event ID: 1 Date: 1/31/2008 Time: 10:08:02 AM User: N/A Computer: SERVERNAME Description: The VB Application identified by the event source logged this Application FrSrvFunc: Thread ID: 3424 ,Logged: Connection Error: Udl=File Name=C:\Program Files\cognos\c8\Data\DEVELOPMENT.Udl But security is OFF!!! Error No=-2147467259, Source=OraOLEDB, Description= ORA-12541: TNS:no listener, Native Error=12541, Sql State = In addition, if using TNSPING, you may get the error ' TNS-12541: TNS: no listener'. Cause There are many potential causes for 'ORA-12541 TNS:no listener' errors. For example: Scenario #1 - Tnsnames.ora file does not have the correct informat