Oracle Listener Error
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Anil Kumar on June 26, 2013 All Posts, Database, Oracle DBA 18 ora 12541 no listener oracle 11g Comments Resolved ORA-12541: TNS no listener error 4.57 (91.43%) 7
Tns No Listener Error In Oracle 11g
votes N no. of articles you will find on the internet about "ORA-12541 TNS no listener ora-12514 tns no listener error" but still finding an effective solution. Don't worry this solution helped me a lot and I hope it will help you too. I got ora 12541 tns no listener oracle 11g client the same issue while working on Oracle 10g database then I decided to share my experience and steps to resolve this issue. Error Message: ORA-12541 TNS no listener error Resolution: Now you have to follow below mentioned steps to resolve the ORA-12541 issue. Step-1: First check your listener status. C:\>lsnrctl
Tns-12560: Tns:protocol Adapter Error
status The above command will show the current status of your listener. Step-2: Start the listener, if listener is not running. C:\>lsnrctl start This command will start all your listener services. Step-3: Stop the listener, if listener is running. C:\>lsnrctl stop This command will stop all your listener services. Step-4: Now restart the listener. C:\>lsnrctl reload This command will restart all your listener services. Note: If you want to see all the available listener commands. Type lsnrtcl help on command prompt and you will get all available options. C:\>lsnrctl help LSNRCTL for 32-bit Windows: Version 11.2.0.2.0 - Production on 02-JUL-2015 20:25:14 Copyright (c) 1991, 2010, Oracle. All rights reserved. The following operations are available An asterisk (*) denotes a modifier or extended command: start stop status services version reload save_config trace change_password quit exit
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Tns-00511: No Listener
community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Oracle client ORA-12541: TNS:no listener [closed] up vote 20 down vote favorite 1 I am new http://itbloggertips.com/2013/06/resolved-ora-12541-tns-no-listener-error/ on Oracle database, but I have one issue, now on my Database server (server1) listener and database instance is run correctly and I can use sqlplus to connect to this DB, But when I connect to database by using other server, I check the TNS configuration is correct but system said ERROR: ORA-12541: TNS:no listener My database is Oracle 10gR2 So how can I solve this issue? oracle listener share|improve this http://stackoverflow.com/questions/13358656/oracle-client-ora-12541-tnsno-listener question edited Sep 23 '14 at 9:26 subhashis 1,55672430 asked Nov 13 '12 at 9:58 aliasosx 1332212 closed as off-topic by Jens Erat, Annjawn, Eric Brown, g00glen00b, showdev Feb 21 '14 at 23:30 This question appears to be off-topic. The users who voted to close gave this specific reason:"Questions on professional server- or networking-related infrastructure administration are off-topic for Stack Overflow unless they directly involve programming or programming tools. You may be able to get help on Server Fault." – Jens Erat, Annjawn, Eric Brown, g00glen00b, showdevIf this question can be reworded to fit the rules in the help center, please edit the question. 3 should be a serverfault.com / dba.stackexchange.com question –Raptor Nov 13 '12 at 10:01 But when I connect to database by using other server You mean to say that when you try to connect the same database from server? –user75ponic Nov 13 '12 at 10:01 I mean I connect to Database server by client by sqlplus or sql developer on Sqldeveloper Error "An error was encountered performing the requested operation: The Network Adapter could not establish the connection Vendor code 20" –aliasosx Nov 13 '12 at 10:04 So you are able to connect to database using sqlplus but not from
errors occur. Evaluating this information will help you to diagnose and troubleshoot even the most complex network problems. This chapter describes common network errors and outlines procedures for resolving them. https://docs.oracle.com/cd/B19306_01/network.102/b14212/troublestng.htm It also describes methods for logging and tracing error information to diagnose and troubleshoot more complex network problems. This chapter contains these topics: Diagnosing Net Services Resolving the Most Common Error Messages http://www.ibm.com/support/docview.wss?uid=swg21361712 for Oracle Net Services Troubleshooting Tips from the Field for Oracle Net Services Troubleshooting the TNS-12154 Error Troubleshooting Network Problems Using Log and Trace Files Logging Error Information for Oracle Net Services no listener Tracing Error Information for Oracle Net Services Contacting Oracle Support Services Diagnosing Net Services If an attempt to make a basic peer-to-peer (single protocol network) connection returns an ORA Error, this section may help you diagnose the cause of the problem. Any underlying fault, noticeable or not, is reported by Net Services with an error number or message that is not always indicative of tns no listener the actual problem. This section helps you determine which parts of Net8 Services do function properly rather than the parts that do not work. It also helps you to decide in which of the following categories the fault belongs: Oracle software Operating system layer Other network layers Testing the various network layers progressively should in most cases uncover any problem. Server Diagnostics Note: You may need assistance from your server administrator to follow the instructions in this section. Answer the following questions: Is any other system (workstation/server) able to connect to the server using Net8? Has the server, database, or listener configuration remained the same for some time? If you answered YES to any of the preceding questions/statements, then skip this section and continue to "Client Diagnostics". If you are unsure, or answered NO to any of the preceding questions, then continue. Diagnosing Net8 Services on the server involves the following tasks: Task 1: Verify the Database Is Running Task 2: Perform a Loopback Test Task 1: Verify the Database Is Running To check that the database is up, login to the database and connect with a valid username and password. For exam
example inside Event Log Technote (troubleshooting) Problem(Abstract) User tries to launch Controller. User receives error message on 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: 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 ---, 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 information required to connect to the Oracle instance See separate IBM Technote 134