ORA-12523 - Listener Couldn't Find Instance Appropriate For Client Connection
Aug 13, 2013
emca -repos create - ran clear
emca -config dbcontrol db - failed with following:
SEVERE: Error Loading TransX:Listener refused the connection with the following error:
ORA-12523, TNS:listener could not find instance appropriate for the client connection
lsnrctl status
*************************************************************************
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Solaris: Version 11.2.0.3.0 - Production
Start Date 13-AUG-2013 15:39:06
Uptime 0 days 0 hr. 26 min. 42 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
[code]....
I am having Oracle 11g (Release 11.2.0.2.0) running on Windows Server 2007 SP2. I am trying to connect to this server from my system using SQL Plus command prompt. (Dedicated - redirect (client and server are on different computers)
I am getting an error: TNS-12518: TNS:listener could not hand off client connection.
When I checked the listener log in the server machine, these were the errors: TNS-12518: TNS:listener could not hand off client connection TNS-12560: TNS:protocol adapter error TNS-00530: Protocol adapter error 32-bit Windows Error: 203: Unknown error
TNS-12518: TNS:listener could not hand off client connection TNS-12571: TNS:packet writer failure TNS-12560: TNS:protocol adapter error TNS-00530: Protocol adapter error Linux Error: 104: Connection reset by peer
SQL*Plus: Release 10.2.0.1.0 - Production on Fri Apr 12 11:07:15 2013
Copyright (c) 1982, 2005, Oracle. All rights reserved.
ERROR: ORA-12518: TNS:listener could not hand off client connection
Below is alertlog entry
Completed: alter database open Thu Apr 04 17:06:19 2013 db_recovery_file_dest_size of 4096 MB is 0.00% used. This is a user-specified limit on the amount of space that will be used by this
I am using oracle 10g and toad 11.5 . i am trying to call an api from an anonymous block . If i recompile the api after adding dbms_output.put_line and then try to execute the anonymous block ,it shows error as "ORA-06508: PL/SQL: could not find program unit being called". However if i end current session and open a new session , then the anonymous block will execute without the error. i am made to reconnect the session everytime i make a change to API. making any configurations in toad or database level.
ORA-06508: PL/SQL: could not find program unit being called ORA error, why it is getting, what is the corrective action for this error. i checked my package and dependent objects all are in VALID state only. But as soon as i get this error, LAST_DDL_TIME for my package is being changed to current time when the package was running.
NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ listener_networks string local_listener string (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=172.28.155.79)(PORT=1521))))
LSNRCTL for HPUX: Version 11.2.0.1.0 - Production on 11-JAN-2013 12:21:51 Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=offdb2)(PORT=1522))) Services Summary... Service "MDB" has 2 instance(s). Instance "MDB", status UNKNOWN, has 1 handler(s) for this service... Handler(s): "DEDICATED" established:15388 refused:0 LOCAL SERVER [code]....
From doc. I see that the "current" is the number of client connections it is handling, that is, its current load.It is not correlating with the sessions or processes in DB, so what does this means?
Does it show that more than 150 connections try to perform connection simultaneously?
I have a DB on my local machine and it was working fine till yesterday.Today suddenly I started receiving error "IO Error : The Network Adapter Could not establish the connection".
1) My first question is that is there some log entry corresponding to this failed connection attempt in listener.log or alert.log ? If yes, how to identify it ?
2) My second question is : What to deduct from listener logs pasted below?I know about "service_update" messages, but what about others (having CONNECT_DATA in them) ? Also, what is "WARNING: Subscription for node down event still pending" in below logs ?
ODBC--call failed.TNS:listener was not given the SID in CONNECT_DATA (#12504)
TNSname sets the SID. SQL*Plus is able to connect from the client Windows XP Proff using the same name. Access, on the same client, uses the same Oracle driver to connect successfully to other Oracle databases. These other databases show equal tnsname (different name and SID...)
ODBC Data Source Administrator configures the database and the test connection is successful.
Cannot set up a link from Access to the Oracle database. At some point, I have created a new Access database and it did let me connect, view the list of tables, and set up links to several tables, but the next day I could not open any of the tables and the complain was: ODBC--connection to 'MYDB' failed.
It seems that SQL*Plus passes correctly the SID from the TNSname but ODBC, when invoked from Access, does not. Yet, ODBC does it right for other databases.
I am using oracle 11g client library on Linux 64bit machine and trying to connect to oracle database using jdbc thin driver.The url format what I am trying to use is:
I am able to connect with the above syntax. But when the service_name is having . e.g service_name = orcl.177.39.45, with the above format I get the above error.
If I change the URL syntax to following, it works
jdbc:oracle:thin:@IP address:port/service_name
But both seems to be valid syntax.So I would like to undestand the reason behind the same. When service_name is having ".", why ":" does not work and "/" works and when the service_name is without " ." , 1st format works. Is there any specific reason behind same?
i am trying to chnage the default port number of listener but facing problems in instance registration. i did as follows:
1. stop the listener as lsnrctl stop (default listener). 2. chnage the listener.ora and tnsnames.ora with desire port numbers (1526) as follows:- [code] LISTENER = (DESCRIPTION_LIST = (DESCRIPTION =
[code]...
but i didnt get the reason of aforsaid error and my instance is not registering
We've been administering a multiple instance production dB server with 3 different versions of Oracle installed.Currently, each of Oracle version had corresponding listener.Oracle 9i had 2 instances, 10g 6 instances & 11g 2 instances also.how I can integrate this 3 listeners into 1.
How to find the sid from v$session of my current session.
I want to ask:
Let say I have open 10 TOAD session and only in one toad session i have fired a sql query ( the rest 9 session are just blank), then the rest 9 status are in active status. Now, how i can figure out which sid ( from v$session ) belongs to which session as all the 9 session having nothing to run.
Quote: My main intention is to find out the current session sid as soon as it make connection with DB.
Yesterday only I have Installed Oracle 11G & created DataBase - JafferDB And from Oracle SQL Developer, I have created a connection called - JafferCon and SID also given..and the role is - SYSDBA And I excute the below statement
insert into MyTable1 Values ('AAA1', 'BBB1', 'CCC1') insert into MyTable1 Values ('AAA2', 'BBB2', 'CCC2')
Then I checked by Select statement, it has shown the values....No Problem.... But, as a test, I deleted the connection and created a new connection tio the same DataBase with different name and when I checked by Select Statement....., it has not shown the values....?
why are there in the Administration --> --> Session 2 entries for 1 database connection (here with benthic golden).But if I login in a browser, there is only 1 entry for this database connection
I Develop Application with C# . I want to connect from Client to Server.
my connection string is ""Data Source=192.168.100.50:1521/XE;User Id=system;Password=system;Min Pool Size=10;Connection Lifetime=120;Connection Timeout=60;Incr Pool Size=5;Decr Pool Size=2;""
When exectue this Connection on Server ، all things OK but when execute on Client this error accure :
"Unhandled exception has occurred in your application. If you click Continue, the application will ignore this error and attempt to continue. If you click Quit, the application will close immediately. The type initializer for 'OracelExperss' threw an exception"
I am using dg4msql to connect to SQL server from Oracle(10.2.0.4, with AIX 5.3).
#from my laptop sqlplus (10.2.0.2)
SQL>select count(*) from table1@mssql; #works SQL>select * from table1@mssql; #ERROR
ORA-28500: connection from ORACLE to a non-Oracle system returned this message: [Oracle][ODBC SQL Server Driver]String data, right truncation {01004}[Oracle][ODBC SQL Server Driver]String data, right truncation {01004}
#from my laptop, TOAD Both queries works fine.
i have compared
"select * from nls_session_parameters;" values , TOAD and sqlpus gives same result.
I have installed Oracle 11g R1 and have problem in connecting Oracle SQL Developer.
I have given user name: ora; pswd: ora.
In command prompt it works fine if I gave as below. uid: ora as sysdba pswd: ora
But when I am trying to connect to Oracle SQL Developer it says TNS listener does not know SID.
So I reinstalled this since i have doubt on myself whether I made mistake first time. Also I have doubt whether the un installation completely clears all the files from Registry. - What should I do to clear all the files from registry when un-installing.
1] What is SID. Is it session ID. If so how to find it. 2] Is there any way to confirm the values such HOST NAME: localhost, PORT: 1521, SID: (By default it has 'xe') which I gave for data base connection are correct.
I tried with SID value:135 (I got this value by executing [Select distinct sid from V$mystat;])
3] Is there any editor for practicing sql & pl sql queries. where I can download it.
When i connect from client to server the client looks up for the host address and port number in tnsnames.ora and connect to it via listener.ora in server.Where does pga and sga come into picture here?
Also what is the role of sqlnet.ora in client?What will happen if i specify a different port for the instance in tnsnames.ora and listener.ora?
1) I put attention that TNS write events into its log in too big frequency: ~ 10 time in second. I see that it is for every connection, but I assume that this no too good to performance.Is there some way to tell to TNS not to write event for every connection but only for errors?
2) May I to remove alert.log of DB? Or DB will make me problems with this?
3) How can I tell to my client connect directly to my instance rather than during TNS?
I have Oracle RAC 11g running on Red Hat 4 64 bit.
I have ora-12520. I run Oracle 11g on Red Hat 4 64 bit. Actually I have RAC but one node is down and I work only with up one (connection string point directly to listener of running node). I run test with not too big loading. select count(*) from v$sessions gets ~ 200 in maximum loading, but after half minutes I get this error in my logs. Each time, lsnrctl services show that all is right. It shows one service with one handler. I see nothing in alert.log. This is very strange, I know, and I'm sure that this is an actual alert.log because, I see there other events in actual time. Most important: I have SESSION parameter set to 600 and PROCESSES set to 400 so this must be enougha...
i have added a new listner on new port on my window 7 system for oracle version 11.2.0.1 and registered some test databases to this new listner , then i am able to access my databases through the toad because i have changed port number in tns entry, but not able to login by sqlplus. is i am missing something? should i have to restart the system or restart the all databases?
TOAD 8.6.1 has an option of showing windows by connection. It is useful when there are multiple connections and, choosing one of these, all windows that belong to other connections are minimized.
Its icon looks like this:
Does TOAD 9.1 have the same option? I'm unable to locate it in options, toolbar customizations or elsewhere.
TOAD 9.5 Release Notes document says that "'Connection list' dropdown button has been restored and can be added to the Toad toolbar.". If I understand it correctly, it says that previous version didn't have that dropdown button, but 9.5 does.
In another words ... 9.1 might not have it at all.
i tried installing oracle sql developer in my laptop and i have problem in setting up a new connection.. Which server am suppose to connect or what's the host no.: i entered the following:
connection name:sethu username:sethu password:sethu connection type:basic and role:default hostname:localhost port:1521 SID:xe and when i give test...
the error shown is "status:failure-test failure: IO Error: The Network could not establish the connection".
