Ora-12545 strange error

Dear friends
I have one strange error in Oracle 8.1.7 , Windows NT server. We have 4 databases in a same box. All are working fine till yesterday. Today morning I am facing this problem. I can not connect to one database out of four from any client. Getting error "ORA-12545: Connect failed because target host or object does not exist"
Other 3 databases in the same server I can connect from client.
In the server I can connect all four databases without any problem.
I am using tnsping <servicename> from the client, is getting OK.
I Observed the tnsnames.ora in the client , nothing found strange. Because all client machines have this problem.
Pleas advise?

I did both your suggestions
First of all all clients are working properly till yesterday without any problem. Today I faced this problem in all clients around 10 clients same time. I feel it is may be Host machine database /network setting problem. How we can trace?
When I restart Listner using lsnrctl command in server , then I can connect from client using SQLplus but a while only. When I Establish another connection in the same client or from any other client, it won't allow me. Also , connected session getting error.
When I issue lsnrctl status command in server it is displaying like this. Maxnew is the one that have problem.
lsnrctl> status
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 8.1.7.0.0 - Produc
tion
Start Date 03-APR-2006 14:30:06
Uptime 0 days 0 hr. 17 min. 53 sec
Trace Level analysis
Security OFF
SNMP OFF
Listener Parameter File D:\oracle\ora81\network\admin\listener.ora
Listener Log File D:\oracle\ora81\network\log\listener.log
Listener Trace File D:\ORACLE\MAXNEW.TRC
Services Summary...
MAXNEW has 1 service handler(s)
maxnew has 3 service handler(s)
MAXPRD has 1 service handler(s)
MAXPRD has 2 service handler(s)
MAXTEST has 1 service handler(s)
MAXTEST has 1 service handler(s)
PLSExtProc has 1 service handler(s)
NBDDATA has 1 service handler(s)
nbddata has 1 service handler(s)
The command completed successfully
Please advise?
James
Message was edited by:
[email protected]

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I did both your suggestions
First of all all clients are working properly till yesterday without any problem. Today I faced this problem in all clients around 10 clients same time. I feel it is may be Host machine database /network setting problem. How we can trace?
When I restart Listner using lsnrctl command in server , then I can connect from client using SQLplus but a while only. When I Establish another connection in the same client or from any other client, it won't allow me. Also , connected session getting error.
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Message was edited by:
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Occasionally got ORA-12545 error

I have 2-node Oracle 10g RAC set up. From a remote client, i run my sample program to retrieve scott.emp data. Occasionally i got ORA-12545 connection error. Using cpp app and Perl DBI app for tested it. And I got the same problem.
./mysample
Environment and Connection created
Result Set:
7369 SMITH CLERK 7902 17-DEC-80 800 0 20
7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30
7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30
7566 JONES MANAGER 7839 02-APR-81 2975 0 20
7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30
7698 BLAKE MANAGER 7839 01-MAY-81 2850 0 30
7782 CLARK MANAGER 7839 09-JUN-81 2450 0 10
7788 SCOTT ANALYST 7566 19-APR-87 3000 0 20
7839 KING PRESIDENT 0 17-NOV-81 5000 0 10
7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30
7876 ADAMS CLERK 7788 23-MAY-87 1100 0 20
7900 JAMES CLERK 7698 03-DEC-81 950 0 30
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Fatal NI connect error 12545, connecting to:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=XXXXXXXX)(PORT=1521))(LOAD_BALANC
VERSION INFORMATION:
TNS for Linux: Version 10.1.0.2.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 10.1.0.2.0 - Production
Time: 15-NOV-2004 10:30:22
Tracing not turned on.
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ns main err code: 12545
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ns secondary err code: 12560
nt main err code: 515
TNS-00515: Connect failed because target host or object does not exist
nt secondary err code: 2
nt OS err code: 0
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Hi,
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Joseph Weinstein <[email protected]> wrote:
>
>
Durga wrote:
Hi Joe,
I have checked the ORACLE_HOME parameter. There was a differnce. Ichanged to
/oracle/app/product/8.1.7
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properties file for reference if u need.Good. No, I don't need it. Now make sure the library path that the OS
uses to find
Oracle libraries, and our driver libraries etc., is in the same order
for the
server as for the shell that is successful on it's own. Make sure your
Oracle
client stuff is ahead of any weblogic libraries.
Joe
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at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java,Compiled
Code)
at oracle.jdbc.oci8.OCIDBAccess.check_error(OCIDBAccess.java,Compiled
C
ode)
at oracle.jdbc.oci8.OCIDBAccess.logon(OCIDBAccess.java, CompiledCode)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java,Com
piled Code)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java,Compiled
C
ode)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java,Compiled
C
ode)
at java.sql.DriverManager.getConnection(DriverManager.java,Compiled Cod
e)
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8.1.5 installs on Redhat 6.1, but ORA-12545 error

I carefully followed all of the installation instructions, and the installation procedure seemed to go as expected. But when I attempt to create a database with dbassist, I get an error:
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[email protected]
null

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by jrbelding ([email protected]):
I carefully followed all of the installation instructions, and the installation procedure seemed to go as expected. But when I attempt to create a database with dbassist, I get an error:
ORA-12545 Connect failed because target host or object does not exist
Note: This is not a networked machine, but there are two network cards installed in the machine. The hostname is currently set to "localhost.localdomain".
Any ideas?
Thanks,
J.R. Belding
[email protected]<HR></BLOCKQUOTE>
Also, I did notice that there seemed to be some errors during execution of the ./linux.sh and ./linux_815patches.sh scripts.
null

ORA-12545 error after changing the host name as IP address in Tnsnames.ora

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I tried to connect PHP and oracle in Red Hat linux. I got error ORA-12545 after changing the host name as IPAddress in Tnsnames.ora file. In sqlnet.ora file also i have entry for tnsnames in Directory_Path. I struggled so much but i couldnt solve that. Please give me ur valuable suggestions....

12545, 00000, "Connect failed because target host or object does not exist"
// *Cause: The address specified is not valid, or the program being
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// *Action: Ensure the ADDRESS parameters have been entered correctly; the
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Hi,
I am trying to install oracle 8.1.7 on redhat EL 3.0. Earlier i installed the same oracle i.e 8.1.7 on redhat 8.0/9.0 and it installed sucesfully. The proceudre
i follow for installtion was :
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ORA-12545 Connect failed because target host or object does not exist.
Even if i tried to run svrmgrl it gives me error
:ORA-12545 Connect failed because target host or object does not exist
Could anyone help me in resolving that ? the same installation procedure works well for Redhat 8.0/9.0
Thanks
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What version of gcc are you using?
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All 8i and 9i releases are built with 2.9x versions of gcc, so you might have to downgrade gcc in order to get 8i running.
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Error Could not connect to the database - ora-12545: tns:name lookup failure

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Thanks, Mary

Copy the tnsname.ora file from Oracle Database serve onto the client PC.
Path: %Oracle_home%\net80\admin\
Send me a mail if there is any other issues
Regards
Oluseyi Funmi Oduberu
Oracle Consultant
Email:[email protected]
Hi,
I am a tech at a failing company. Unfortuneatly some users still need ADI installed and working with very limited resources to troubleshoot oracle. I am getting the error - ( Could not connect to the database - ora-12545: tns:name lookup failure )when the user tries to log on to ADI. Any suggestions? I would really appreciate it. We are on Windows NT on an NT network. Oracle 8.05 client installed and ADI 6.0.
Thanks, Mary

ORA-12545 error in rac, local&remote listener

Hi,
We have an 10g Release 2 RAC system. We usually take
ORA-12545 Connect failed because target host or object does not exist tips
error message. I think tnsnames.ora file is correct, I can achieve to send tnsping message. And I think the host file is alaso correct, I am successful to send ping message to the ip in the host file. And we are noticed that cpu utilization of one RAC node is very bad. Do you that these two problem can be related? I searched the error message on internet. I think this link is interesting:
http://www.ardentperf.com/2007/04/02/local_listener-and-ora-12545/
But I do not fully understand the article. Because I do not know the local&remote listeners.
Can you help me?

12545, 00000, "Connect failed because target host or object does not exist"
// *Cause: The address specified is not valid, or the program being
// connected to does not exist.
// *Action: Ensure the ADDRESS parameters have been entered correctly; the
// most likely incorrect parameter is the node name. Ensure that the
// executable for the server exists (perhaps "oracle" is missing.)
// If the protocol is TCP/IP, edit the TNSNAMES.ORA file to change the
// host name to a numeric IP address and try again.While logged onto the target system issue the following commands:
lsnrctl status
lsnrctl service
CUT commands & results and PASTE back here
Generate another error & then CUT the last 20 - 30 records from listener.log & PASTE back here

ORA - 12545 ERROR

I have a problem connecting to the host.
I am able to ping successfully to the server.
When I execute tnsping from the client machine, the operation runs successfully.
TNS Ping Utility for 32-bit Windows: Version 2.3.2.1.0 - Production on 21-JUN-01 10:45:50
Copyright , 1996(c) Oracle Corporation 1995. All rights reserved.
Attempting to contact (ADDRESS=(COMMUNITY=tcp.world)(PROTOCOL=TCP)(Host=150.140.130.35)(Port=1521))
OK (50 msec)
However when I use SQL Plus or Forms Application to connect to this database, I get the following error :
SQL> connect armada/armada@orants
ERROR: ORA-12545: TNS:name lookup failure
My TNSnames extract for this database is as follows :
orants.world =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(COMMUNITY = tcp.world)
(PROTOCOL = TCP)
(Host = 150.140.130.35)
(Port = 1521)
(ADDRESS =
(COMMUNITY = tcp.world)
(PROTOCOL = TCP)
(Host = 150.140.130.35)
(Port = 1526)
(CONNECT_DATA = (SID = ORANTS)
A quick reply will be appreciated.

Hi
Just thought I'd tell the list that I had to add
disable_oob = on
to the client sqlnet.ora and it worked like a charm.
Try this
Good Luck
r@m@

ERROR ORA-12545

Hi,
I am working in oracle9i and solaris, if i connected to the database by pl/sql i am receiving the following error as
ora-12545 : connect failed because target host or object does not exist.
But if i ping the server its working fine
and also i use tnsping the database means its also working fine ...
my collegaue he is able to connect...
Only mysely receiving that error.
Please tell me the solutions ...

hi
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Copyright (c) 1997 Oracle Corporation. All rights reserved.
Used parameter files:
c:\oracle\ora90\network\admin\sqlnet.ora
c:\oracle\ora90\network\admin\tnsnames.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS =(PROTOCOL =TCP)(H
OST =spa.fleet.capital.ge.com)(PORT =1521))) (CONNECT_DATA =(SERVICE_NAME =ge_tf
lt5)))
OK (7530 msec)
C:\Documents and Settings\jayarago>

Ora-12545 strange error

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