TNS-12500 Error

Guys,
I get TNS-12500 error whenever I tried to connect to my Oracle Instance
C:\>sqlplus /nolog
SQL*Plus: Release 9.2.0.6.0 - Production on Mon Feb 16 17:42:46 2009
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
SQL> conn /@oradev as sysdba
ERROR:
ORA-12500: TNS:listener failed to start a dedicated server process
i then tried to restart the listener services but I get the following message
C:\>lsnrctl status
LSNRCTL for 32-bit Windows: Version 9.2.0.6.0 - Production on 16-FEB-2009 17:39:
56
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=amcad3)(PORT=1521)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 9.2.0.6.0 - Produc
tion
Start Date 16-FEB-2009 13:19:14
Uptime 0 days 4 hr. 20 min. 42 sec
Trace Level off
Security OFF
SNMP OFF
Listener Parameter File C:\oracle\ora92\network\admin\listener.ora
Listener Log File C:\oracle\ora92\network\log\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=<>)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC0ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=<>)(PORT=2100))(Presen
tation=FTP)(Session=RAW))
Services Summary...
Service "OraDev" has 1 instance(s).
Instance "OraDev", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
C:\>lsnrctl services
LSNRCTL for 32-bit Windows: Version 9.2.0.6.0 - Production on 16-FEB-2009 17:40:
30
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=<>)(PORT=1521)))
Services Summary...
Service "OraDev" has 1 instance(s).
Instance "OraDev", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:5
LOCAL SERVER
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
The command completed successfully
I have checked listener logs and thsi is what I see
16-FEB-2009 17:41:44 * (CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=OraTEST)(CID=(PROGRAM=C:\oracle\ora92\bin\sqlplus.exe)(HOST=LP-AB)(USER=abell))) * (ADDRESS=(PROTOCOL=tcp)(HOST=172.16.67.112)(PORT=3304)) * establish * OraTEST * 12500
TNS-12500: TNS:listener failed to start a dedicated server process
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
32-bit Windows Error: 2: No such file or directory
16-FEB-2009 17:41:54 * ping * 0
16-FEB-2009 17:42:11 * (CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=OraDev)(CID=(PROGRAM=C:\oracle\ora92\bin\sqlplus.exe)(HOST=LP-AB)(USER=abell))) * (ADDRESS=(PROTOCOL=tcp)(HOST=172.16.67.112)(PORT=3306)) * establish * OraDev * 12500
TNS-12500: TNS:listener failed to start a dedicated server process
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
32-bit Windows Error: 2: No such file or directory
16-FEB-2009 17:42:53 * (CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=OraDev)(CID=(PROGRAM=C:\oracle\ora92\bin\sqlplus.exe)(HOST=AMCAD3)(USER=scelamkoti))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.53)(PORT=20980)) * establish * OraDev * 12500
TNS-12500: TNS:listener failed to start a dedicated server process
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
32-bit Windows Error: 2: No such file or directory
------ Entries from sqlnet.ora
SQLNET.AUTHENTICATION_SERVICES= (NONE)
NAMES.DIRECTORY_PATH= (TNSNAMES, ONAMES, HOSTNAME)
------ listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = OraDev)
(ORACLE_HOME = C:\oracle\ora92)
(SID_NAME = OraDev)
Any suggestions and inputs would help
Thanks

Hi..
On the server where the database resides..
go to START -->RUN --> services.msc --> Look at "OracleService" and "OracleStart". These two services are followed by your SID name.These services should be started.
Check for OraclexxxxTNSListener -- it must be started.
HTH
Anand

Similar Messages

TNS-12500 error, kindly look at my ora parameters

kindly look at my ORA parameters if you see anything wrong or suspicious
# LISTENER.ORA Network Configuration File:
E:\oracle\ora92\network\admin\listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTO = IPC)(KEY = EXTPROC1))
(ADDRESS_LIST =
(ADDRESS = (PROTO = TCP)(HOST = 192.168.210.4)(PORT = 1521))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = E:\oracle\ora92)
(PROGRAM = extproc)
(SID_DESC =
(GLOBAL_DBNAME = FRAUDDB)
(ORACLE_HOME = E:\oracle\ora92)
(SID_NAME = FRAUDDB)
(SID_DESC =
(GLOBAL_DBNAME = OEMREP.ecnfraud.com)
(ORACLE_HOME = E:\oracle\ora92)
(SID_NAME = OEMREP)
Contents of my tnsnames.ora file
# TNSNAMES.ORA Network Configuration File:
E:\oracle\ora92\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
FRAUDDB =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTO = TCP)(HOST = 192.168.210.4)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = FRAUDDB)
INST1_HTTP =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTO = TCP)(HOST = 192.168.210.4)(PORT = 1521))
(CONNECT_DATA =
(SERVER = SHARED)
(SERVICE_NAME = MODOSE)
(PRESENTATION = http://HRService)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTO = IPC)(KEY = EXTPROC1))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
contents of my sqlnet.ora file
# SQLNET.ORA Network Configuration File:
E:\oracle\ora92\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, ONAMES, HOSTNAME

TNS-12500 is not related to listener or tnsnames configuration. It occurs due to non-availability of memory on the database server.
Check your server for physical RAM and virtual memory consumption. If database server is running on windows then check if the oracle process is crossing per process limit of 2GB. If you need to cross 2GB, you need to set the parameter in boot.ini for this.
Have a look at this thread for details.
Re: ORA-27102 out of memory pls help

TNS-12500, -12560 caused by Windows error 'no such file'?

I recently recovered our 9i database. I was initially able to log in via sql and the enterprise manager. However after a restart I can no longer do so, with error messages relating to the listener. The tnsnames.ora and listener.ora files all have the same entry for HOST, although in the files below I see several values, I don't know if this is related to this problem. I also notice that the status for our database is listed as 'unknown'. When I was initially able to log in via enterprise manager it also reported the same thing. I am able to tnsping our SID. The path listed below in the listener log (D:\oracle\ora90\bin\sqlplus.exe) does exist. Any ideas? Thanks!
From listener log:
14-MAR-2010 22:15:32 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=)(USER=brin))(COMMAND=services)(ARGUMENTS=64)(SERVICE=LISTENER)(VERSION=153092352)) * services * 0
14-MAR-2010 22:22:48 * (CONNECT_DATA=(SID=<sid>)(SERVER=DEDICATED)(CID=(PROGRAM=D:\oracle\ora90\bin\sqlplus.exe)(HOST=<host>)(USER=brin))) * (ADDRESS=(PROTOCOL=tcp)(HOST=<IP address>)(PORT=2114)) * establish * <SID> * 12500
TNS-12500: TNS:listener failed to start a dedicated server process
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
32-bit Windows Error: 2: No such file or directory
From lsnrctl status:
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=<longer host name than shown above>)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC0ipc)))
Services Summary...
Service "<SID>I" has 1 instance(s).
Instance "<SID>", status UNKNOWN, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully

This is the only database on this machine. That being said, this is a reinstallation of Oracle on a machine that had some damage, so it's possible there are remnants that may be causing trouble. However I did a very clean deinstall of Oracle (down to manually clearing out the registry).
Looking at the link you provided, I ran into trouble at this point:
"...c:/oracle/ora09/bin/ and execute agntsrvc executabe. It should not throw any error."
However it did: startservicectrldispatcher failed with err 1063.
I'm guessing that I need to set up some other aspects of this database to get windows to launch it properly.

TNS-12500 & TNS-12560 on Oracle 9i - 9.2.0.1.0

Hi,
We have an old Oracle9i db server.
One instance is called TEST. About two weeks ago, we started having problems with the test instance. It's been up and running smoothly for almost 10 years. No changes that I know of has been made.
We get TNS-12500 & TNS-12560 amongst others in the listener.log when we try to connect to TEST.
We frequently get this in the listener.log:
21-MAR-2010 02:00:26 * service_died * TEST * 12537
21-MAR-2010 02:00:36 * service_register * TEST * 0
However, since the problem first occured, the "service_register" does not follow the "service_died" in the log file.
tnsping works fine:
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = XXX)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = TEST)))
OK (130 msek)
lsnrctl status:
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 9.2.0.6.0 - Produc
tion
Startdatum 01-APR-2010 12:07:03
Uppkopplad tid 4 dagar 23 tim. 3 min. 51 sek
SpÕrningsnivÕ off
Sõkerhet OFF
SNMP OFF
Avlyssnarens parameterfil C:\oracle\ora92\network\admin\listener.ora
Avlyssnarens loggfil C:\oracle\ora92\network\log\listener.log
Avlyssnar slutpunktssammanfattning...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=XXX)(PORT=
1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC0ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=XXX)(PORT=
8080))(Presentation=HTTP)(Session=RAW))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=XXX)(PORT=
2100))(Presentation=FTP)(Session=RAW))
Sammanfattning av tjõnster...
Tjõnsten "OEMREP" har 2 instans(er).
Instans "OEMREP", status UNKNOWN, har 1 handtag f÷r tjõnsten...
Instans "OEMREP", status READY, har 1 handtag f÷r tjõnsten...
Tjõnsten "OEMREPXDB" har 1 instans(er).
Instans "OEMREP", status READY, har 1 handtag f÷r tjõnsten...
Tjõnsten "PLSExtProc" har 1 instans(er).
Instans "PLSExtProc", status UNKNOWN, har 1 handtag f÷r tjõnsten...
Tjõnsten "PROD" har 2 instans(er).
Instans "PROD", status UNKNOWN, har 1 handtag f÷r tjõnsten...
Instans "PROD", status READY, har 1 handtag f÷r tjõnsten...
Tjõnsten "TEST" har 1 instans(er).
Instans "TEST", status UNKNOWN, har 1 handtag f÷r tjõnsten...
(Sorry about the swedish)
sqlnet.log:
Fatal NI connect error 12500, connecting to:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=XXX)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=test)(CID=(PROGRAM=C:\Program Files\Oracle\jre\1.1.8\bin\jrew.exe)(HOST=XXX)(USER=XXX))))
VERSION INFORMATION:
     TNS for 32-bit Windows: Version 9.2.0.6.0 - Production
     Windows NT TCP/IP NT Protocol Adapter for 32-bit Windows: Version 9.2.0.6.0 - Production
Time: 06-APR-2010 10:14:16
Tracing not turned on.
Tns error struct:
nr err code: 0
ns main err code: 12564
TNS-12564: TNS: anslutning nekad
ns secondary err code: 0
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
The other instances on the server works fine.
If I restart the server it works fine for a couple of days.
Where should I begin?
I'm not really into doing something that could interrupt the status of the production instance on the server before the weekend, but at the same time I would need the test instance up and running right now. I also would like to know what would happen if I was to restart the listener (we have one listener for all instances). Would all active connections to the production instance be affected?
.

Steener wrote:
Hi,
We have an old Oracle9i db server.
One instance is called TEST. About two weeks ago, we started having problems with the test instance. It's been up and running smoothly for almost 10 years. No changes that I know of has been made.
We get TNS-12500 & TNS-12560 amongst others in the listener.log when we try to connect to TEST.
We frequently get this in the listener.log:
21-MAR-2010 02:00:26 * service_died * TEST * 12537
21-MAR-2010 02:00:36 * service_register * TEST * 0
However, since the problem first occured, the "service_register" does not follow the "service_died" in the log file.
tnsping works fine:
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = XXX)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = TEST)))
OK (130 msek)
<snip>
In addition to the other comments you've received, please note that tnsping actually says nothing about the state of any db instance. It only goes so far as to verify there is a listener on the specified port at the specified host.
Note the names of the services known by the listener:
[oracle@vmlnx01 admin]$ lsnrlsnrctl status
LSNRCTL for Linux: Version 10.2.0.4.0 - Production on 06-APR-2010 12:40:46
Copyright (c) 1991, 2007, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=vmlnx01.vmdomain)(PORT=1521)))
STATUS of the LISTENER
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 10.2.0.4.0 - Production
Start Date                06-APR-2010 08:34:59
Uptime                    0 days 4 hr. 5 min. 47 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /ora00/app/oracle/product/10.2.0/db_1/network/admin/listener.ora
Listener Log File         /ora00/app/oracle/product/10.2.0/db_1/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=vmlnx01.vmdomain)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=vmlnx01.vmdomain)(PORT=1523)))
Services Summary...
Service "vlnxora1" has 1 instance(s).
Instance "vlnxora1", status READY, has 1 handler(s) for this service...
Service "vlnxora1XDB" has 1 instance(s).
Instance "vlnxora1", status READY, has 1 handler(s) for this service...
Service "vlnxora1_XPT" has 1 instance(s).
Instance "vlnxora1", status READY, has 1 handler(s) for this service...
The command completed successfully
[oracle@vmlnx01 admin]$ cat tnsnames.oraNote the HOST, PORT and SERVICE names in my tnsnames.ora
# tnsnames.ora Network Configuration File: $ORACLE_HOME/network/admin
vlnxora1 =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = vmlnx01.vmdomain)(PORT = 1521))
    (CONNECT_DATA =
      (SERVICE_NAME = vlnxora1)
#the listener doesn't know about fubar
fubar =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = vmlnx01.vmdomain)(PORT = 1521))
    (CONNECT_DATA =
      (SERVICE_NAME = fubar)
)But see the successful tnsping
[oracle@vmlnx01 admin]$ tnsping fubar
TNS Ping Utility for Linux: Version 10.2.0.4.0 - Production on 06-APR-2010 12:41:08
Copyright (c) 1997, 2007, Oracle. All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = vmlnx01.vmdomain)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = fubar)))
OK (10 msec)
[oracle@vmlnx01 admin]$

Newbie : Problem starting OPG for IBM MQseries: TNS-00530, Error Code 2

Hi All
First of all, if this is the wrong place to post this question, I apologize.
I have installed a new installation of Oracle 9.2.0.1 and at a separate home location the OPG for IBM MQSeries for 9.2.0.1 off the same bits.
The configuration said that the default SID of PG4MQS92 would be setup since I was using a local MQ queue manager but I didnt see any entries in the listener.ora or the tnsames.ora so added the following.
listener.ora
(SID_DESC =
(SID_NAME = pg4mqs92)
(ORACLE_HOME = C:\Software\oracle\pg4mqs92)
(PROGRAM = pg4mqs92)
tnsnames.ora
ORACLE_QM =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = testmachine)(PORT = 1521))
(CONNECT_DATA =
(SID = pg4mqs92)
(HS=OK)
When I ran tnsping on ORACLE_QM it was resolved. But when I start the putsample.sql program after importing all the required packages using the pgmdeploy9.sql script I get the following output.
DECLARE
ERROR at line 1:
ORA-04052: error occurred when looking up remote object
[email protected]
ORA-00604: error occurred at recursive SQL level 1
ORA-28545: error diagnosed by Net8 when connecting to an agent
NCRO: Failed to make RSLV connection
ORA-02063: preceding 2 lines from PG4MQ
In the listener.log I see the following error
07-DEC-2005 07:34:19 * (CONNECT_DATA=(SID=pg4mqs92)) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.100)(PORT=1271)) * establish * pg4mqs92 * 12500
TNS-12500: TNS:listener failed to start a dedicated server process
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
32-bit Windows Error: 2: No such file or directory
I noticed that during the install a boot file for the pgm4mqs92 SID was not found anywhere. Is it maintained in the registry, if so where ?
If the boot file is missing is there a sample I can use and where do I need to put it ?
Am running on Windows XP Professional.
Have been stuck with this a while and cannot find any information on this, so any help would be appreciated.
Thanks
- Deepak

I am getting the same error while starting or stopping the listener
LSNRCTL> start CSCLIST
Starting tnslsnr: please wait...
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
LSNRCTL> stop CSCLIST
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=CSCINDAE708070)(PORT=152
2)))
NL-00303: syntax error in NV string
TNS-01153: Failed to process string: (DESCRIPTION=(CONNECT_DATA=(CID=(PROGRAM=)
(HOST=)(USER=Manager(REMOVE)))(COMMAND=stop)(ARGUMENTS=64)(SERVICE=CSCLIST)(VERS
ION=186646784)))
Pls help
Listener.ora:
# listener.ora Network Configuration File: D:\Sagaya\11gDBhome\product\11.2.0\dbhome_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
CSCLIST =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = CSCINDAE708070)(PORT = 1522))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1522))
SID_LIST_CSCLIST =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = D:\Sagaya\11gDBhome\product\11.2.0\dbhome_1)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:D:\Sagaya\11gDBhome\product\11.2.0\dbhome_1\bin\oraclr11.dll")
ADR_BASE_CSCLIST = D:\Sagaya\11gDBhome

Listener problems: TNS-12500, TNS-12560, TNS-00530

Dear All,
On a laptop (name: aspire3000, 1G RAM, 2GHz, Windows XP) I have installed Oracle 9i release 2 database (name=HOMEDB, sid=SIDHOMEDB). I "played" for a while trying to configure Oracle Shared Server but I think I've ruined the listener.
I execute the following steps:
1. start the PC
2. start the listener and database services in Control Panel (because they are set on manual)
3. in order to test the listener is functioning properly I execute:
lsnrctl> stop
lsnrctl> start
the listener starts, everything is ok
4. using sqlplus connected as sysadmin
4.1. sql> shutdown
it shuts down the database
4.2. sql> startup
Now, I receive:
ORA-12500: TNS: listener failed to start a dedicated server process
I check the sqlnet.log file:
Fatal NI connect error 12638, connecting to:
(DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))
VERSION INFORMATION:
TNS for 32-bit Windows: Version 9.2.0.1.0 - Production
Oracle Bequeath NT Protocol Adapter for 32-bit Windows: Version 9.2.0.1.0 - Production
Time: 21-FEB-2006 16:24:07
Tracing not turned on.
Tns error struct:
nr err code: 0
ns main err code: 12638
TNS-12638: Credential retrieval failed
ns secondary err code: 0
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
In the listener.log I see:
21-FEB-2006 16:38:41 * (CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=HOMEDB)(CID=(PROGRAM=C:\oracle\ora90\bin\sqlplusw.exe)(HOST=ASPIRE3000)(USER=dsandu))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.14.101.51)(PORT=1605)) * establish * HOMEDB * 12500
TNS-12500: TNS:listener failed to start a dedicated server process
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
32-bit Windows Error: 2: No such file or directory
My listener.ora looks like this:
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = aspire3000)(PORT = 1521))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = c:\oracle\ora90)
(PROGRAM = extproc)
(SID_DESC =
(GLOBAL_DBNAME = HOMEDB)
(ORACLE_HOME = c:\oracle\ora90)
(SID_NAME = HOMEDB)
TRACE_LEVEL_LISTENER = ADMIN
What's wrong?
If I shut down the PC, restart the PC, restart Oracle services (listener and db) I can connect using sqlplus. If I shutdown down the database it won't restart.
Thank you very much for the help!
Daniela

hi,
take another look at your listener.ora file, esp this line:
(ADDRESS = (PROTOCOL = TCP)(HOST = HOST = aspire3000)(PORT = 1521))
... perhaps a typo.
here is my file:
# LISTENER.ORA Network Configuration File: C:\oracle\ora92\network\admin\listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = ORADELL)(PORT = 1521))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\oracle\ora92)
(PROGRAM = extproc)
(SID_DESC =
(GLOBAL_DBNAME = ora920)
(ORACLE_HOME = C:\oracle\ora92)
(SID_NAME = ora920)
Dear All,
On a laptop (name: aspire3000, 1G RAM, 2GHz, Windows
XP) I have installed Oracle 9i release 2 database
(name=HOMEDB, sid=SIDHOMEDB). I "played" for a while
trying to configure Oracle Shared Server but I think
I've ruined the listener.
I execute the following steps:
1. start the PC
2. start the listener and database services in
Control Panel (because they are set on manual)
3. in order to test the listener is functioning
properly I execute:
lsnrctl> stop
lsnrctl> start
the listener starts, everything is ok
4. using sqlplus connected as sysadmin
4.1. sql> shutdown
it shuts down the database
4.2. sql> startup
Now, I receive:
ORA-12500: TNS: listener failed to start a dedicated
server process
I check the sqlnet.log file:
Fatal NI connect error 12638, connecting to:
(DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))
VERSION INFORMATION:
TNS for 32-bit Windows: Version 9.2.0.1.0 -
- Production
Oracle Bequeath NT Protocol Adapter for 32-bit
t Windows: Version 9.2.0.1.0 - Production
Time: 21-FEB-2006 16:24:07
Tracing not turned on.
Tns error struct:
nr err code: 0
ns main err code: 12638
TNS-12638: Credential retrieval failed
ns secondary err code: 0
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
In the listener.log I see:
21-FEB-2006 16:38:41 *
(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=HOMEDB)(
CID=(PROGRAM=C:\oracle\ora90\bin\sqlplusw.exe)(HOST=AS
PIRE3000)(USER=dsandu))) *
(ADDRESS=(PROTOCOL=tcp)(HOST=10.14.101.51)(PORT=1605))
* establish * HOMEDB * 12500
TNS-12500: TNS:listener failed to start a dedicated
server process
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
32-bit Windows Error: 2: No such file or
or directory
My listener.ora looks like this:
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST =
HOST = aspire3000)(PORT = 1521))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = c:\oracle\ora90)
(PROGRAM = extproc)
(SID_DESC =
(GLOBAL_DBNAME = HOMEDB)
(ORACLE_HOME = c:\oracle\ora90)
(SID_NAME = HOMEDB)
TRACE_LEVEL_LISTENER = ADMIN
What's wrong?
If I shut down the PC, restart the PC, restart Oracle
services (listener and db) I can connect using
sqlplus. If I shutdown down the database it won't
restart.
Thank you very much for the help!
Daniela

TNS-12500: TNS:listener failed to start a dedicated server process

Hello all,
I have recently applied a patch on apps tier, after which the concurrent manager is not up & running,
while viewing the internal log
im getting the below error
Check that your system has enough resources to start a concurrent manager process. Contact your system administrator to : 25-NOV-2013 13:02:02
Starting AVAILMGR Concurrent Manager               : 25-NOV-2013 13:02:02
Could not start Service Manager FNDSM_test_test. The TNS alias could not be located, the listener process on test could not be contacted, or the listener failed to spawn the Service Manager process.
Routine AFPEIM encountered an error while starting concurrent manager AVAILMGR with library /d01/apps/testappl/fnd/11.5.0/bin/FNDLIBR.
Check that your system has enough resources to start a concurrent manager process. Contact your system administrator to : 25-NOV-2013 13:02:02
                     Process monitor session ended : 25-NOV-2013 13:02:02
========================================================================
Starting test_1125@test Internal Concurrent Manager -- shell process ID 25362
          logfile=/d01/apps/testcomn/admin/log/test_test/test_1125.mgr
          PRINTER=noprint
           mailto=appltest
          restart=N
             diag=N
            sleep=60 (default)
             pmon=20 (default)
           quesiz=1 (default)
Routine &ROUTINE has attempted to start the internal concurrent manager. The ICM is already running. Contact you system administrator for further assistance.afpdlrq received an unsuccessful result from PL/SQL procedure or function FND_DCP.Request_Session_Lock.
Routine FND_DCP.REQUEST_SESSION_LOCK received a result code of 1 from the call to DBMS_LOCK.Request.
Possible DBMS_LOCK.Request resultCall to establish_icm failed
The Internal Concurrent Manager has encountered an error.
Review concurrent manager log file for more detailed information. : 25-NOV-2013 13:03:01 -
Shutting down Internal Concurrent Manager : 25-NOV-2013 13:03:01
List of errors encountered:
_ 1 _
Routine AFPCSQ encountered an ORACLE error. .
Review your error messages for the cause of the error. (=<POINTER>)
List of errors encountered:
_ 1 _
Routine AFPCAL received failure code while parsing or running your
concurrent program CPMGR
Review your concurrent request log file for more detailed information.
Make sure you are passing arguments in the correct format.
The test_1125@test internal concurrent manager has terminated with status 1 - giving up.
WARNING: RunAsUser for MSP ignored, check group ids (egid=501, want=51)
can not chdir(/var/spool/clientmqueue/): Permission denied
Program mode requires special privileges, e.g., root or TrustedUser.
Also in apps tier $TNS_ADMIN
the log says
25-NOV-2013 14:57:51 * ping * 0
25-NOV-2013 14:57:51 * (CONNECT_DATA=(SID=FNDSM)) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.12)(PORT=5147)) * establish * FNDSM * 12500
TNS-12500: TNS:listener failed to start a dedicated server process
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
   TNS-00517: Lost contact
    Linux Error: 32: Broken pipe

HI thanks for your reply,
I tried the above guide but dint helped me,
I tried modifiying Concurrent:GSM Enabled to N & concurrent manager started but all requests were in pending state not running so i reverted back to Concurrent:GSM Enabled Y
I ran autoconfig & this is the lastes error I am getting in internal manager log.
Check that your system has enough resources to start a concurrent manager process. Contact your system administrator to o : 25-NOV-2013 15:51:18
Starting FCHMGR Concurrent Manager                 : 25-NOV-2013 15:51:18
Could not start Service Manager FNDSM_test_test. The TNS alias could not be located, the listener process on test could not be contacted, or the listener failed to spawn the Service Manager process.
Routine AFPEIM encountered an error while starting concurrent manager FCHMGR with library /d01/apps/testappl/fnd/11.5.0/bin/FNDLIBR.
Check that your system has enough resources to start a concurrent manager process. Contact your system administrator to o : 25-NOV-2013 15:51:18
Starting FCHMGR Concurrent Manager                 : 25-NOV-2013 15:51:18
Could not start Service Manager FNDSM_test_test. The TNS alias could not be located, the listener process on test could not be contacted, or the listener failed to spawn the Service Manager process.
Routine AFPEIM encountered an error while starting concurrent manager FCHMGR with library /d01/apps/testappl/fnd/11.5.0/bin/FNDLIBR.
Check that your system has enough resources to start a concurrent manager process. Contact your system administrator to o : 25-NOV-2013 15:51:19
Starting FCHMGR Concurrent Manager                 : 25-NOV-2013 15:51:19
Could not start Service Manager FNDSM_test_test. The TNS alias could not be located, the listener process on test could not be contacted, or the listener failed to spawn the Service Manager process.
Routine AFPEIM encountered an error while starting concurrent manager FCHMGR with library /d01/apps/testappl/fnd/11.5.0/bin/FNDLIBR.
Check that your system has enough resources to start a concurrent manager process. Contact your system administrator to o : 25-NOV-2013 15:51:19
Starting FCHMGR Concurrent Manager                 : 25-NOV-2013 15:51:19
Could not start Service Manager FNDSM_test_test. The TNS alias could not be located, the listener process on test could not be contacted, or the listener failed to spawn the Service Manager process.
Routine AFPEIM encountered an error while starting concurrent manager FCHMGR with library /d01/apps/testappl/fnd/11.5.0/bin/FNDLIBR.
Check that your system has enough resources to start a concurrent manager process. Contact your system administrator to o : 25-NOV-2013 15:51:19
Starting FCHMGR Concurrent Manager                 : 25-NOV-2013 15:51:19
Could not start Service Manager FNDSM_test_test. The TNS alias could not be located, the listener process on test could not be contacted, or the listener failed to spawn the Service Manager process.
Routine AFPEIM encountered an error while starting concurrent manager FCHMGR with library /d01/apps/testappl/fnd/11.5.0/bin/FNDLIBR.
Check that your system has enough resources to start a concurrent manager process. Contact your system administrator to o : 25-NOV-2013 15:51:19
Starting FCHMGR Concurrent Manager                 : 25-NOV-2013 15:51:19
Could not start Service Manager FNDSM_test_test. The TNS alias could not be located, the listener process on test could not be contacted, or the listener failed to spawn the Service Manager process.
Routine AFPEIM encountered an error while starting concurrent manager FCHMGR with library /d01/apps/testappl/fnd/11.5.0/bin/FNDLIBR.
Check that your system has enough resources to start a concurrent manager process. Contact your system administrator to o : 25-NOV-2013 15:51:19
Starting FCHMGR Concurrent Manager                 : 25-NOV-2013 15:51:19
Could not start Service Manager FNDSM_test_test. The TNS alias could not be located, the listener process on test could not be contacted, or the listener failed to spawn the Service Manager process.
Routine AFPEIM encountered an error while starting concurrent manager FCHMGR with library /d01/apps/testappl/fnd/11.5.0/bin/FNDLIBR.
Check that your system has enough resources to start a concurrent manager process. Contact your system administrator to o : 25-NOV-2013 15:51:20
Starting FCHMGR Concurrent Manager                 : 25-NOV-2013 15:51:20
Could not start Service Manager FNDSM_test_test. The TNS alias could not be located, the listener process on test could not be contacted, or the listener failed to spawn the Service Manager process.
Routine AFPEIM encountered an error while starting concurrent manager FCHMGR with library /d01/apps/testappl/fnd/11.5.0/bin/FNDLIBR.
Check that your system has enough resources to start a concurrent manager process. Contact your system administrator to o : 25-NOV-2013 15:51:20
Starting FCHMGR Concurrent Manager                 : 25-NOV-2013 15:51:20
Could not start Service Manager FNDSM_test_test. The TNS alias could not be located, the listener process on test could not be contacted, or the listener failed to spawn the Service Manager process.
Routine AFPEIM encountered an error while starting concurrent manager FCHMGR with library /d01/apps/testappl/fnd/11.5.0/bin/FNDLIBR.
Check that your system has enough resources to start a concurrent manager process. Contact your system administrator to o : 25-NOV-2013 15:51:20
Starting FCHMGR Concurrent Manager                 : 25-NOV-2013 15:51:20
The below is the log from $TNS_ADMIN log directory apps_test.ora
25-NOV-2013 16:06:01 * (CONNECT_DATA=(SID=FNDSM)) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.2.30.82)(PORT=13510)) * establish * FNDSM * 12500
TNS-12500: TNS:listener failed to start a dedicated server process
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
   TNS-00517: Lost contact
    Linux Error: 32: Broken pipe
25-NOV-2013 16:06:01 * ping * 0
25-NOV-2013 16:06:01 * (CONNECT_DATA=(SID=FNDSM)) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.12)(PORT=13512)) * establish * FNDSM * 12500
TNS-12500: TNS:listener failed to start a dedicated server process
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
   TNS-00517: Lost contact
    Linux Error: 32: Broken pipe
25-NOV-2013 16:06:02 * ping * 0
25-NOV-2013 16:06:02 * (CONNECT_DATA=(SID=FNDSM)) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.12)(PORT=13514)) * establish * FNDSM * 12500
TNS-12500: TNS:listener failed to start a dedicated server process
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
   TNS-00517: Lost contact
    Linux Error: 32: Broken pipe
25-NOV-2013 16:06:02 * ping * 0
25-NOV-2013 16:06:02 * (CONNECT_DATA=(SID=FNDSM)) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.30)(PORT=13516)) * establish * FNDSM * 12500
TNS-12500: TNS:listener failed to start a dedicated server process
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
   TNS-00517: Lost contact
    Linux Error: 32: Broken pipe

DB 9i - TNS-12500: TNS:listener failed to start a dedicated server process

hi all,
I have a problem with the following configuration oracle 9.2.0.1 (32bits) on Win server 2003 - enterprise x64 edition - 10GM of RAM.
I installed DB without problem, run server, started listener - seems all is fine. But when trying a remote connection, "listener failed to start a dedicated server process"
log listener -------
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=NpressOracle9.replynet.prv)(PORT=8080))(Presentation=HTTP)(Session=RAW))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=NpressOracle9.replynet.prv)(PORT=2100))(Presentation=FTP)(Session=RAW))
04-MAR-2010 05:31:04 * service_register * PRESS * 0
04-MAR-2010 05:31:08 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=)(USER=Administrator))(COMMAND=status)(ARGUMENTS=64)(SERVICE=LISTENER)(VERSION=153092352)) * status * 0
04-MAR-2010 05:31:36 * ping * 0
04-MAR-2010 05:31:39 * (CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=PRESS)(CID=(PROGRAM=C:\oracle\product\10.2.0\db_1\bin\sqlplus.exe)(HOST=MMARFELLA-NB)(USER=mmarfella))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.21.103.28)(PORT=2838)) * establish * PRESS * 12500
TNS-12500: TNS:listener failed to start a dedicated server process
TNS-12546: TNS:permission denied
TNS-12560: TNS:protocol adapter error
TNS-00516: Permission denied
32-bit Windows Error: 5: Input/output error
I ask You, because I am not too familiar with Windows environment and very likely I forget/miss something obvious (in this env).
Thanks in advance
Marfy

I solved installing upgrade to 9.2.0.8.
Now It's all OK.
Regards
Marfy

TNS-12518 error while trying to fetch data from SQL Server

Hi everyone,
I'm trying to establish connectivity from Oracle 10.2 server to a SQL Server 2005. These are the server details
DOVER - This is where I installed Oracle Gateway for SQL Server. There's already an Oracle home in this server and I have used the existing listener for the incoming connections
LUNDY - This is where my actual Oracle server resides
HEBRIDES - This is where SQL Server 2005 instance resides, the database name is TRACKIT90
I've set everything as explained in Oracle documentation http://download.oracle.com/docs/cd/B19306_01/gateways.102/b14270/ch2.htm#i1005694 but in the end I'm getting an TNS-12518: TNS:listener could not hand off client connection when I run a test query and this is what it says in the listener.log of DOVER
01-MAR-2010 15:33:19 * (CONNECT_DATA=(SERVICE_NAME=tg4msql)(HS=OK)(CID=(PROGRAM=w:\oracle\product\10.2.0\db_1\bin\ORACLE.EXE)(HOST=LUNDY)(USER=))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.0.0.58)(PORT=3887)) * establish * tg4msql * 12518
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: 2: No such file or directory
My initialization parameter under \\ORACLE_HOME\tg4msql\admin of gateway installation in DOVER is as below:
HS_FDS_CONNECT_INFO=hebrides.TRACKIT90
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=RECOVER
HS_FDS_RECOVERY_PWD=RECOVER
The listener.ora of the active listener in DOVER has the following lines, by the way this listener does not reside on the same ORACLE_HOME as the gateway's ORACLE_HOME but it is the current active listener in the server. The listener has also been stopped and started:
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = dover)(PORT = 1521))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
SID_LIST_LISTENER =
(SID_DESC =
(SID_NAME = tg4msql)
(ORACLE_HOME = E:\oracle\product\10.2.0\tg_1)
(PROGRAM = tg4msql)
The following entry has been added to the tnsnames.ora in LUNDY server where my actual Oracle database resides.
TRACKIT_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = DOVER)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = tg4msql)
(HS = OK)
And finally a database link is created by using the below DDL statement:
CREATE DATABASE LINK "DLINK" CONNECT TO "username" IDENTIFIED BY "password" USING 'TRACKIT_DATA';
When I do a select statement on one of the tables of TRACKIT database by using the following query I got the TNS-12518 error with above details
select * from announcement@dlink;
I would appreciate any help and also please let me know if I missed out any details.
Thanks.

This is the output comes with the "lsnrctl service listener" command on DOVER server
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on 02-MAR-2010 11:48:55
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
Service "STD81" has 1 instance(s).
Instance "STD81", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:5 refused:0
LOCAL SERVER
Service "STD81" has 1 instance(s).
Instance "std81", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:4234 refused:0 state:ready
LOCAL SERVER
Service "STD81_XPT" has 1 instance(s).
Instance "std81", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:4234 refused:0 state:ready
LOCAL SERVER
Service "tg4msql" has 1 instance(s).
Instance "tg4msql", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:22
LOCAL SERVER
The command completed successfully

ORA-12560-TNS PROTOCOL ERROR

SIR,
i hadbeen installed oracle aplication server.but i m not connecting to database.when i use the sql*plus.i use the user name-scott &password-tiger.i got an error ORA-12560=TNS PROTOCOL ERROR.
I M NOT ABLE TO RECTIFY ITS PROBLEM,how can i create host string in oracle application server 10g.please send reply its very urgent.
thanx ranjeet

Although this question is completely off topic of the Personalization you can learn how to configure the SQL*Net connect from the manual by reading the topic "Configure the Client to Use a Net Service Name" found at the following link:
http://download-west.oracle.com/docs/cd/A91202_01/901_doc/network.901/a90154/gettings.htm#483215

ORA-12500 Error

What is the Solution for ORA-12500 ERROR?
ORA-12500TNS:listener failed to start a dedicated server process.
Thanks in Advance.

Generally speaking one only sets the processes parameter, the sessions parameter will be automatically derive from the processes parameter.
However: each process constitutes a Windows thread.
You may be hitting the maximum number of threads for a Windows process (There is one Oracle process, and each dedicated server process is a thread).
What the maximum number of threads is I don't know, but I have never managed to have more than 200 processes.
You should investigate to convert to shared server.
Open_cursors refers to the number of SQL statements which can be opened by an individual session.
Sybrand Bakker
Senior Oracle DBA

Error: ORA-12560 TNS : Protocol Error help need urgently

HI
i m working on win 2k adv server
i installed orcale 8i
and then i started sql plus
and entered us id and pass : scott / tiger
and also tried :system / manager
but i m having this error
plz tellme how can i solve it
Error: ORA-12560 TNS : Protocol Error
plz do it soon
Nurali
03002199037

You're attempting to go across SQL*Net. I'm a unix guy so I can't help very much except to point this out.
On Unix I'd either undefine the TWO_TASK environmental variable. Probably a reg entry on 2k.
Or configure Sql*Net.
Ken

MARS - Oracle TNS listener errors

Anyone familiar with this:
[pnadmin]$ pndbusage
Program aborted due to: ORA-12541: TNS:no listener
MARS was fine before the holiday weekend. When I came back, I was looking at the summary page and the graph wasn't being drawn. I SSH'd to MARS and did the above.
While SSH'd to MARS (and my HTTPS session still open) I did a reboot and I still get the same error. Also, now when I HTTPS to MARS I get a login page, but the url is: https://10.6.184.116/logout.jsp
The username/password fields and login button are in the upper left corner of the browser window, not in the middle like normal.
So, now I have two problems. The first being my TNS listener error and the second being that I can't log in. It wants me to log out first...ugh.
Thanks,
Bob

This sounds like a known issue and if memory serves a developer will need to login and do something, so you'll need to open a TAC case.
Here is the link:
http://www.cisco.com/en/US/products/ps6241/products_field_notice09186a008070fcaf.shtml

Frustrating ORA-12500 error

Hi all,
HELP!!!
I'm using Oracle7.3 database server on Windows NT4.0 and workstation is Chinese Windows98. My PB6.5 application make two connections whenever login. The first connection always success (retrieve application general data) and the second connection (retrieve specific data) always have the ORA-12500 error msg after ~1min24s waiting. However the 2nd connection always success on second/third attempt.
Anybody know why???
I've already checked the server's listener.ora and workstations's tnsnames.ora files, they seems normal to me.
When I run OEM, I got the ORA-12500 error msg also no matter how many times I try. But it is very normal when I use INSTANCE manager, SCHEMA manager, SECURITY manager, STORAGE manager.
Please help!!!

Generally speaking one only sets the processes parameter, the sessions parameter will be automatically derive from the processes parameter.
However: each process constitutes a Windows thread.
You may be hitting the maximum number of threads for a Windows process (There is one Oracle process, and each dedicated server process is a thread).
What the maximum number of threads is I don't know, but I have never managed to have more than 200 processes.
You should investigate to convert to shared server.
Open_cursors refers to the number of SQL statements which can be opened by an individual session.
Sybrand Bakker
Senior Oracle DBA

Unable to connect to TOAD : ora:-12546 TNS Permission error

Hi friends
Kindly help me
Am Unable to connect to TOAD : ora:-12546 TNS Permission error
till 2 days before it was connecting.
Dont know what happened now
SQL*Plus and Forms 6i are getting connected.
What can be the issue ?
Regards
Dora

Hi
ORA-12546: TNS: permission denied
Cause: User has insufficient privileges to perform the requested operation.
Action: Acquire necessary privileges and try again.
Pls check the sites suggest by google
http://dbmotive.com/oracle_error_codes.php?errcode=12546&type=ORA
http://www.ironspeed.com/Designer/6.2.1/WebHelp/Part_V/ORA_12546_TNS_permission_denied.htm
Thanks & Regards
Srikkanth.M

TNS-12500 Error

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