Oracle Sql Error 12541
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Ora-12541 But Listener Is Running
Don Burleson Blog
ora 12541 no listener oracle 11g ORA-12541: TNS: no listener Oracle Tips by John Garmany You Asked: I get theTns No Listener Error In Oracle 11g
ORA-12541 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 ora-12541 tns no listener toad listener.ora and 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 ora-12541: tns:no listener linux correct server and 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 listen
Anil Kumar on June 26, 2013 All Posts, Database, Oracle DBA 18 Comments Resolved
Ora 12541 Tns No Listener Oracle 11g Client
ORA-12541: TNS no listener error 4.57 (91.43%) 7 votes N no. tns-12560: tns:protocol adapter error of articles you will find on the internet about "ORA-12541 TNS no listener error" but still
Ora-12541 Tns No Listener Windows
finding an effective solution. Don't worry this solution helped me a lot and I hope it will help you too. I got the same issue while http://www.dba-oracle.com/t_ora_12541_tns_no_listener.htm 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 status The above command will show http://itbloggertips.com/2013/06/resolved-ora-12541-tns-no-listener-error/ 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 set* show* Step-5: One last and very important thing which you h
log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you http://dba.stackexchange.com/questions/73944/ora-12541-tnsno-listener might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or https://www.tekstream.com/resources/ora-12541-tns-no-listener/ posting ads with us Database Administrators Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question and answer site for database professionals who no listener wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top ORA-12541: TNS:no listener up vote 3 down vote favorite 1 tns no listener I've been working this issue all day, reading posts here and other locations. I'm just not able to get past this error. I can connect just fine locally on my server (CentOS), but continue to get the TNS:no listener error when trying to connect via my Mac (OSX Mavericks) which is on the same subnet. Below are some notes I've captured based on what information I see that has been requested for this type of issue: -------------------------------------------------------------------------------- MISC NETWORK CONFIG: -------------------------------------------------------------------------------- [root@rubyrailssvr ~]# more /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.1.14 rubyrailssvr.homenet.com [root@rubyrailssvr ~]# [root@rubyrailssvr ~]# more /etc/sysconfig/network NETWORKING=yes HOSTNAME=rubyrailssvr.homenet.com [root@rubyrailssvr ~]# -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- LISTENER.ORA File: -------------------------------------------------------------------------------- [oracle@rubyrailssvr ~]$ more /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora # listener.ora Network Configuration File: SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = PLSExtProc) (ORACLE_HOME = /u01/app/oracle/product/11.2.0/xe) (PROGRAM = extproc) ) ) LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE)) (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.14)(PORT = 1521)) ) ) DEFAULT_SERV
Digital Records Management Enterprise Content Management Strategy Digital Asset Management Oracle Imaging & Process Management Web Content Management Oracle WebCenter Portal Enterprise Portal Support Enterprise Portal Strategy Enterprise Portal Upgrade Oracle WebCenter Sites Sourcing Staffing & Recruiting Recruiting Managed Services Candidate Registration Technical Focus Client Opportunities Support Solutions Training Legacy to Oracle WebCenter Oracle Documents Cloud Service Next Generation AP Automation & Dynamic Discounting Oracle WebCenter Contract Lifecycle Management (CLM) Search ORA-12541: TNS: no listenerYou are here: Home / 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 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 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 listene