Loosing connections with ORA-12154

Our scenario goes like this. We run transaction(1000's) fine for a while
(hours!), then we get the following errors in sequence for short period of
time(~2-5 minutes):
<JDBC Pool> Sleeping in createResource()
<JDBC Pool> Sleeping in createResource()
<JDBC Pool> Connection for pool "bankframePool" created.
<JDBC Pool> Connection for pool "bankframePool" created.
<JDBC Pool> Sleeping in createResource()
<JDBC Pool> Sleeping in createResource()
Our application, during that time, stops with ORA-12154 from Oracle. Then
everything seems to recover fine and we process transaction again fine for
hours. Why would we loose the connections like this while we are running
transaction non stop through the system?
Regards,
Andre Dionne

We are running on solaris 8. This morning we tried to start the application
servers with the minimum connection equal to the maximum(150) and we got
ORA-12154 after creating 122 connections. Could it be related to the Oracle
OCI8 driver we are using?
"Joseph Weinstein" <[email protected]> wrote in message
news:[email protected]..
>
>
Andre Dionne wrote:
Our scenario goes like this. We run transaction(1000's) fine for a while
(hours!), then we get the following errors in sequence for short period
of
time(~2-5 minutes):
<JDBC Pool> Sleeping in createResource()
<JDBC Pool> Sleeping in createResource()
<JDBC Pool> Connection for pool "bankframePool" created.
<JDBC Pool> Connection for pool "bankframePool" created.
<JDBC Pool> Sleeping in createResource()
<JDBC Pool> Sleeping in createResource()
Our application, during that time, stops with ORA-12154 from Oracle.Then
everything seems to recover fine and we process transaction again finefor
hours. Why would we loose the connections like this while we are running
transaction non stop through the system?
Regards,
Andre DionneHi. For stability and performance, I recommend defining your connectionpool
to make all it's connections at startup (init = max). Oracle is sometimesweak
when being asked for lots of connections at any one time. Sometimes itgets overrun,
and fails some connection attempts. Also, tell me if you're running onSolaris.
Joe

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some more information
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Dear All,
I'm trying to use MS Access .mdb file as source to my OWB application. I need to connect to the ms access .mdb file first using odbc. Here are the step I do:
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SID_LIST_LISTENER =
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LISTENER =
(DESCRIPTION_LIST =
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ERROR at line 1:
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OK (120 msec)
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Best Regards
Akhmad H Gumas

Klaus,
just fix the point you mention.
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C:\>C:\app\Administrator\product\11.2.0\dbhome_1\bin\lsnrctl status
LSNRCTL for 32-bit Windows: Version 11.2.0.1.0 - Production on 05-AUG-2014 17:10
:23
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
Alias                     LISTENER
Version                   TNSLSNR for 32-bit Windows: Version 11.2.0.1.0 - Produ
ction
Start Date                05-AUG-2014 17:09:18
Uptime                    0 days 0 hr. 1 min. 5 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   C:\app\Administrator\product\11.2.0\dbhome_1\network\a
dmin\listener.ora
Listener Log File         c:\app\administrator\diag\tnslsnr\eric-fd165f15bb\list
ener\alert\log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "msaccess" has 1 instance(s).
Instance "msaccess", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
C:\>C:\app\Administrator\product\11.2.0\dbhome_1\bin\dg4odbc
Oracle Corporation --- TUESDAY   AUG 05 2014 17:12:18.509
Heterogeneous Agent Release 11.2.0.1.0 - Production Built with
   Oracle Database Gateway for ODBC
C:\>C:\app\Administrator\product\11.2.0\dbhome_1\bin\tnsping msaccess
TNS Ping Utility for 32-bit Windows: Version 11.2.0.1.0 - Production on 05-AUG-2
014 17:12:48
Copyright (c) 1997, 2010, Oracle. All rights reserved.
Used parameter files:
C:\app\Administrator\product\11.2.0\dbhome_1\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = localhos
t)(PORT = 1521)) (CONNECT_DATA = (SID=msaccess)) (HS=OK))
OK (20 msec)
Looks like the problem is the missing closing bracket. Finally the query work after i fix it. Thanks a lot Klaus
Best Regards
Akhmad H Gumas

Strange problem with ORA-12154 from only one client

Hi all,
I have a strange problem.
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Host3: database ovm8a
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I have an Oracle Application Server where our Oracle Forms and Reports run. The Oracle client on this install is 10.1.0.5. I've got a tnsnames.ora file setup on this Oracle App server to connect to all three databases ovm1a, ovm7a and ovm8a. I can successfully use the 10.2.0.5 client SQL*PLUS to connect to the EHJ schema in the ovms1, ovms7 and ovms8 databases.
However, (and only when) connected to the ovm1a database from this client, attempts to select over the link throw the famous error: ORA-12154: TNS:could not resolve the connect identifier specified
This error happens with both links in the ovm1a database when connected via this one client.
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I'm pulling my hair out trying to figure this out.
I've tried using SQL*PLUS from my desktop machine (10g R2 client) connecting to the EHJ schema on all three databases and the db links all work fine.
Any help in trying to troubleshoot this would be greatly appreciated.
Cheers

JSebastian wrote:
I have an Oracle Application Server where our Oracle Forms and Reports run. The Oracle client on this install is 10.1.0.5. I've got a tnsnames.ora file setup on this Oracle App server to connect to all three databases ovm1a, ovm7a and ovm8a.But the client (and tnsnames.ora) in question here is actually one (each) of the three databases, right? I.e. error is thrown by the db server, acting as client (db link side).
>
However, (and only when) connected to the ovm1a database from this client, attempts to select over the link throw the famous error: ORA-12154: TNS:could not resolve the connect identifier specified Connected how, as opposed to when you "successfully select..."?
This error happens with both links in the ovm1a database when connected via this one client.Does Oracle config files on ovma1 host differ from the other two db hosts?
Does
SQL> select property_name,property_value from database_properties
2 where property_name in ('GLOBAL_DB_NAME','NLS_RDBMS_VERSION');
SQL> select owner,db_link,host from dba_db_links;return as expected on all three db's?
I've tried using SQL*PLUS from my desktop machine (10g R2 client) connecting to the EHJ schema on all three databases and the db links all work fine.Make sure you are connecting to correct databases. (Simply, three tns aliases could all be pointing to the same database.)
Edited by: orafad on May 25, 2011 11:24 PM

Connection failing : ORA-12154

Hello everybody,
I have a connexion via Oracle SQL Developper that works fine to an Oracle database.
I should like to write an interface via an office tool, probably Ms-Access, to that database.
I could create an ODBC connexion in the user DSN in the administration tools of Windows (XP Pro), and the test button gives me a message that says the connection is successful.
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ODBC -- l'appel a échoué
[Oracle][ODBC][Ora]ORA-12154: TNS : l'identificateur de connexion indiqué n'a pas pu être résolu
(#12154)[Microsoft][ODBC Driver Manager] Driver's SQLSetConnectAttr failed IM006 0 [Microsoft][ODBC Driver Manager] Driver's SQLSetConnectAttr failed(#0)
The 2 first lines could be translated like that :
ODBC -- the call failed
ORA-12154: TNS : the connection identificator that was given could not be resolved.
So, I searched for the number of the error, and as an answer I got this :
http://www.oracle.com/technetwork/topics/dotnet/odt-faq-085407.html#ORA-12154:_TNS:could_not_resolve_the
(attempt to use the link functionnality in the forum failed)
Second attempt :
[http://www.oracle.com/technetwork/topics/dotnet/odt-faq-085407.html#ORA-12154:_TNS:could_not_resolve_the|http://www.oracle.com/technetwork/topics/dotnet/odt-faq-085407.html#ORA-12154:_TNS:could_not_resolve_the]
I had made two attempts to install the .Net driver (including Oracle Provider for OLE DB 11.2.0.1.0), as during the first one I saw "installation suspended", and I had time to click on abort before understanding this was normal.
So, I have copied TNSNAMES.ORA to the directory
C:\app\(my name)\product\11.2.0\client_2\Network\Admin
I deleted folder C:\app\(my name)\product\11.2.0\client_1
as this seems to be duplicated.
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Edited by: user13498894 on 17 déc. 2010 17:40

Bingo ! This was the correct thing to verify.
This morning I begun by creating a linked table to the Oracle base, and it ran without any difficulty. I was even invited to check a box to save the password.
So, this is what I guess : when SQL Developper is not used during a certain time, the connection is reinitialized, you have to close the product and reopen it. I wonder whether the account of authorized connections, at a time, would not fail to be reinitialized when doing that, thus preventing to open further connections. SQL developper can open its connection again, but other products then fail to open theirs.
It seams to be a path to explore.
I wonder whether I am supposed to close the topic : I could create my linked tables, nevertheless probably it would be interesting to have an in-depth view of how to reinitialize a connection properly when a time-out prevents it to run any more.
Anyway this seems necessary to answer user13502634's question.
Any idea about what documentation to read about it ?
Edited by: Neptune on 21 déc. 2010 15:14

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Need assistance with ORA-12154 issue

I know this has been answered several times so i'll try to eliminate most of the common troubleshooting.
I'm on a 64 bit windows server running one database called PECDB on Oracle Database 10.2.0.1.
sqlnet.ora:
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
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I'm not sure where else to look and hoping someone here can help me.

user6711087 wrote:
I know this has been answered several times so i'll try to eliminate most of the common troubleshooting.
I'm on a 64 bit windows server running one database called PECDB on Oracle Database 10.2.0.1. PECDB? Uh, could I hazard a guess and ask you to come down to room 101?
>
sqlnet.ora:
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
TNSnames.ora was recreated using Net Config Assistant and ran lsnrctl status and tnsping PECDB to verify it is correct. Sqlplus works and connecting using MSACCESS (ODBC) from a client machine works also.
Problem: A user requested the IT dept to install his program called "STATA 10" directly on the server to take advantage of the memory. STATA uses the ODBC to connect to the database. I created the ODBC on the server which tested successfully. Now in Stata you type the following command to list all ODBC's available:
odbc list
which shows:
Data Source Name Driver
PECDB Oracle in PECDB
Then you type this that should list all tables owned by the specified user:
odbc query "PECDB", user(x) password(x)
but instead I get this error message:
[Oracle][ODBC][Ora]ORA-12154: TNS:could not resolve the connect identifier specified
, SQLSTATE=08004
[Oracle][ODBC][Ora]ORA-12154: TNS:could not resolve the connect identifier specified
I'm not sure where else to look and hoping someone here can help me.

Loosing connections with ORA-12154

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