Got error in sqlnet.log TNS-12535: TNS:operation timed out

connection not getting from client machine to database. got error in sqlnet.log
Fatal NI connect error 12170.
VERSION INFORMATION:
     TNS for Linux: Version 10.2.0.4.0 - Production
     Oracle Bequeath NT Protocol Adapter for Linux: Version 10.2.0.4.0 - Production
     TCP/IP NT Protocol Adapter for Linux: Version 10.2.0.4.0 - Production
Time: 15-MAR-2010 17:09:30
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12606
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=172.20.237.14)(PORT=1879))
Fatal NI connect error 12170.
VERSION INFORMATION:
     TNS for Linux: Version 10.2.0.4.0 - Production
     Oracle Bequeath NT Protocol Adapter for Linux: Version 10.2.0.4.0 - Production
     TCP/IP NT Protocol Adapter for Linux: Version 10.2.0.4.0 - Production
Time: 15-MAR-2010 17:53:26
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12606
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=172.20.237.14)(PORT=2045))
even no any parameter set in sqlnet.ora

hi,
Please check the connectivity from server to client.
And also check whether the tnsnames.ora file has the TNS entry of the DB server which you are trying to connect.
Then TNSPING the server with tns name.
If this also doesnt work try commenting all lines in sqlnet.ora file on server.
Check the listener status also on the server.

Similar Messages

TNS - 12535 - Connection Operation Time Out

i m getting this error again and again. to overcome this problem, i have searched
CONNECT_TIMEOUT parameter to asign '0' zero vaue, to get higher higher time in listner.ora, but there is no any such parameter in it.(as suggested my teacher) hence i reconfigured my listner, the said prob get solved. but the next day i found the same error. what should be do? is there any solution?
thanx in advance

from the client (using dos command prompt)
tnsping instance_name
Also check your tns_names file on the client and make certain you are pointing at the correct machine. Check the machine and make certain the listener is listening for the correct alias.
Something is not working correctly.
Are the other clients having the same problems or are they able to connect?
Wayne

Fatal NI connect error 12170 and TNS-12535: TNS:operation timed out

We are getting intermittently following error.
TNS for Solaris: Version 10.2.0.3.0 - Production
Oracle Bequeath NT Protocol Adapter for Solaris: Version 10.2.0.3.0 - Production
TCP/IP NT Protocol Adapter for Solaris: Version 10.2.0.3.0 - Production
Time: 26-FEB-2008 07:17:25
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12606
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
sql net ora file
NAMES.DIRECTORY_PATH= (TNSNAMES)
# NAMES.DEFAULT_DOMAIN = world
SQLNET.EXPIRE_TIME = 10
Out of 10,000 sucessful connections, some 10 connections are getting the 12170 and 12535 error. It is due to firewall connection time out ?
Appreciate advanced help
Prasad

Hi ,
Even I am facing similar issue. Please let me know if you have any resolutions for this

DB Connect error: ORA-12535: TNS:operation timed out

Hi,
I am trying to connect to a external oracle database from SAP.
I entered the TNS entry of the external DB in the TNSNAMES.ORA and configured it in the table DBCON.
But i am not able to connect to the external database. It is throwing the error
"sql error 12.535 ; occured:ORA-12535: TNS:operation timed out"
But i was able to connect the database from my system through TNSPING and also from TOAD.
Do i need to configure any parameter in LISTENER.ORA in SAP or in the external database?

Hi,
Thanks for the reply.
The note which you specified was with BI objects. But i am trying to connect from SAP R/3 to a remote Oracle database.
I got connected to the remote Oracle database for an hour and it got disconnected by saying "TNS operation timed out".
The CONNECT_TIMEOUT parameter in LISTERER.ORA of the remote Oracle database is missing.
Will this may be the cause for the "TNS operation timed out".

"ORA-12535:TNS:operation timed out" error

hi,
I want to connect to my oracle server.If I try to connect my client means"ORA-12535:TNS:operation timed out" error is shown.What should i do to the rectify this problem.Pls give me a solution.
Thanks in advance.
-reg
Lakshman.

We are using wiondows XP and oracle 8i.
I am able to ping the host where the database resides.
this problem occurs only when we try to connect this server form the client.I able to connect other servers without any problem.
I able to establish local connections.
I am trying tnsping database service.
client and the server are in same LAN only.
Pls give me a solution.
Thanks in advance.
-regs,
Lakshman.

TNS-12560: TNS:protocol adapter error, ORA-12535: TNS:operation timed out

I installed Oracle 9i (9.2.0.1.0) on a Windows XP machine (the machine is in a domain). There were no errors during the instalation, but I have problems connecting from the same machine using the sid. Here are some examples from a command promt:
D:\>tnsping orcl9i
TNS Ping Utility for 32-bit Windows: Version 9.2.0.1.0 - Production on 31-OCT-20
08 17:43:22
Copyright (c) 1997 Oracle Corporation. All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = timisoara01)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = orcl9i)))
TNS-12560: TNS:protocol adapter error
D:\>sqlplus "sys/pass@orcl9i as sysdba"
SQL*Plus: Release 9.2.0.1.0 - Production on Fri Oct 31 17:54:54 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
ERROR:
ORA-12535: TNS:operation timed out
Enter user-name:If I don't use the sid I can connect:
D:\>sqlplus "sys/pass as sysdba"
SQL*Plus: Release 9.2.0.1.0 - Production on Fri Oct 31 18:05:46 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production
SQL>If I go to services I see that the service is running: OracleServiceORCL9I Started.
Thx.

Yes, the XP firewall is running. During the Oracle instalation it poped up twice, but I selected 'Unblock'. I can't turn it off because it is running using the domain settings, but I can add exceptions (programs or ports). Port 1521, tnsping or sqlplus are not blocked and there is an option 'Display a notification when Windows Firewall blocks a program' witch is checked.

"TNS-12535: TNS:operation timed out" error after listener restart

I have two related questions:
Scenario 1:
1. I have two remote Windows machines with database on each. One is Win 2003 Server (machine A) and another one is Win XP (machine B)
2. I can ping from A to B.
3. I can ping from B to A.
4. I can tnsping from A to B.
5. I CAN'T tnsping from B to A.
6. Windows Firewall on both machines are off.
What could be possible reason for point# 5?
Scenario 2:
Now, the second part:
1. I had an unwanted entry in tnsnames.ora on B which I removed.
2. Then I restarted the listener on B. Actually, I wanted to restart the one on A to check if that resolves issue mentioned in point# 5 above.
3. I tried tnsping from A to B but suprisingly it is also giving "operation timed out" error now. So now tnsping not working from either sides.
I didn't make any changes in listener.ora on B, just stopped it and started again. Only change made was removing unwanted entry in tnsnames.ora on B.
Why does that affected database connectivity from A to B which was working fine previously?
If any extra information needed please let me know, and thanks in advance for your answers.
- Ramesh

DB names on both machines: ORCL
listener.ora on B (Win XP) - This was working before listener restart, I mean, I was able to connect to DB on B from A.
# listener.ora Network Configuration File: C:\app\Test\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = C:\app\Test\product\11.2.0\dbhome_1)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:C:\app\Test\product\11.2.0\dbhome_1\bin\oraclr11.dll")
(SID_DESC =
(GLOBAL_DBNAME = ORCL)
(ORACLE_HOME = c:\app\Test\product\11.2.0\dbhome_1)
(SID_NAME = ORCL)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = testpc)(PORT = 1521))
ADR_BASE_LISTENER = C:\app\Test
listener.ora on A (Win 2003 Server) - Never able to connect to DB on this machine from A.
# listener.ora Network Configuration File: D:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = D:\app\Administrator\product\11.2.0\dbhome_1)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:D:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll")
(SID_DESC =
(GLOBAL_DBNAME = ORCL)
(ORACLE_HOME = D:\app\Administrator\product\11.2.0\dbhome_1)
(SID_NAME = ORCL)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = NRDBSVR.delldomain1.netreachasia.com)(PORT = 1521))
ADR_BASE_LISTENER = D:\app\Administrator
NOTE:
Machine A = NRDBSVR.delldomain1.netreachasia.com (Win 2003 Server)
Machine B = testpc (Win XP)

TNS-12535 Operation timed out

Hi
I am working on IBM AIX, Oracle 10.2.0.4 version.
Here I got the TNS-12535 error while running a report at particular time. (i.e 8:30 PM to 10:00 PM PST). But aftter this particular time it runs good.
There is no errors found in alert log file. The below is the error found in the sqlnet.log file.
Please help me to resolve this...
Time: 18-FEB-2011 17:05:53
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12560
nt main err code: 505
TNS-00505: Operation timed out
nt secondary err code: 78
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=host_name)(PORT=1521))
nt OS err code: 0
Thanks

Hi,
Nothing to investigate at the application side, there is everything to investigate at the network side.
Check the below points.
- is there any firewall in play
- is there any Network Address Translation into play
- have the correct ports been opened in the firewall
- is Oracle using random return ports (by default Oracle always uses 2 tcp/ip ports, the first one fixed, and configured in tnsnames.ora, the actual communication takes place on a radom port. If that is a problem at your site you need to fix that)
- You need to run netstat -r to identify which ports are actually used.
- Pavan kumar N

TNS-12535 TNS:operation timed out - Win 7 - WAN

Hi!
Database Version: Oracle 11.2.0.2
Server OS: Linux 64bit
Database server "A" at different location (connecting through a 10 MBPS link - latency 15 ms).
I can ping to server.
When i connect to server "A" from client on Windows 7 I got TNS-12535 error (All Win 7 clients).
Firewall on client is down.
When i connect to server"A" from client on Win XP or Win 2003 server is OK.
Both TNSNAMES.ora and SQLNET.ora are the same on each client.
tnsnames.ora
db11 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.10.0.10)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = db11)
From all clients I can connect to local database server "B" without problem.
Laptop with Win 7 carried to location "A" can connect to server "A".
I've tried Oracle clients from 10.2 to 11.2 and in each case 'tnsping db11' give TNS-12535 error.

You are NOT going to like this answer, but all is symptomatic of Firewall between client & server.
bcm@bcm-laptop:~$ oerr tns 12535
12535, 00000, "TNS:operation timed out"
// *Cause: The requested operation could not be completed within the time out
// period.
// *Action: Look at the documentation on the secondary errors for possible
// remedy. See SQLNET.LOG to find secondary error if not provided explicitly.
// Turn on tracing to gather more information.When you get desperate, you'll need to start packet sniffing using Ethereal or Wireshark.

TNS-12535: TNS:operation timed out on Vista SP1 OS

Hi everyone,
I am starting to play with Oracle DB recnetly..
today I have TNS connection failed issue.
When I tried to use ODBC to connect Oracle XE DB, I got ORA-12535: TNS:operation timed out.
Here is basic info:
OS:Vista SP1
Oracle Version:Oracle Database 10g Express Edition Release 10.2.0.1.0
I can connect Oracle DB by http://localhost:8080/apex and sqlpus.
and check - telnet ellen.test.net 1521, it is working.
I have no idea why my TNS connection got timeout issue.
Did someone encounter the same issue before?
Thanks for any input in advance.
C:\>tnsping XE
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 14-OCT-2
010 17:39:29
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
C:\oraclexe\app\oracle\product\10.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = ellen.test.net)(PORT = 1521))
(CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = XE)))
TNS-12535: TNS:operation timed out
C:\>lsnrctl status
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on 14-OCT-2010 21:41:49
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Produ
ction
Start Date 14-OCT-2010 16:50:35
Uptime 0 days 4 hr. 51 min. 14 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Default Service XE
Listener Parameter File C:\oraclexe\app\oracle\product\10.2.0\server\network\a
dmin\listener.ora
Listener Log File C:\oraclexe\app\oracle\product\10.2.0\server\network\l
og\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC_FOR_XEipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=ellen.test.net)(POR
T=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=8080))(Presentation=
HTTP)(Session=RAW))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
Instance "CLRExtProc", 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...
Service "XEXDB" has 1 instance(s).
Instance "xe", status READY, has 1 handler(s) for this service...
Service "XE_XPT" has 1 instance(s).
Instance "xe", status READY, has 1 handler(s) for this service...
Service "xe" has 1 instance(s).
Instance "xe", status READY, has 1 handler(s) for this service...
The command completed successfully
for Instance"xe", I don't understand why I also got this error. Is there some wrong setting?_
file content: sqlnet.ora
SQLNET.AUTHENTICATION_SERVICES = (NTS)
file content:tnsnames.ora
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = ellen.test.net)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
file content: listener.ora
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\oraclexe\app\oracle\product\10.2.0\server)
(PROGRAM = extproc)
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = C:\oraclexe\app\oracle\product\10.2.0\server)
(PROGRAM = extproc)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(ADDRESS = (PROTOCOL = TCP)(HOST = ellen.test.net)(PORT = 1521))
DEFAULT_SERVICE_LISTENER = (XE)

Is it related?I can not say it is related with 100% certainty.
You can conclude I had a REALLY lucky guess or there is high correlation between VM & having TNS-12535 error.
It is your system & you are free to (ab)use it any way you choose to do so.
We both know SQL*Net can & does work as advertised, but requires a properly configured OS & Network underneath it.

ORA-12535: TNS:operation timed out on a win2000 Oracle instance

Hi,
i have a Oracle 8.1.5 instance on a WIN2000 PC.
I can connect me to this database with sqlplus
as long i stay on the PC (means i started the sqlplus
on the same machine).
When i try to connect from an other (unix-)system
i get after a while (ca. 90 sec.) the error:
ORA-12535: TNS:operation timed out
tnsping works fine (answer comes back in one second)
There are no firewalls or other "strange" things between
the database and the failing client (on an other PC,
also win2000, Oracle 8.1.5 everything works fine).
Below you see the log with debug of the listener.
I have also a trace on level SUPPORT but this is more
than 1000 lines for just 1 or 2 TNSPINGs and one SQLPLUS
connect. Due to this volume i decided not to attach it to
this initial mail.
Does any one have some advice or experiences ?
Please advice.
Best regards,
[email protected]
======================================================================
TNSLSNR for 32-bit Windows: Version 8.1.5.0.0 - Production on 19-APR-01 09:07:26
(c) Copyright 1998 Oracle Corporation. All rights reserved.
Die System-Parameterdatei ist D:\Oracle81\network\admin\listener.ora
Log-Meldungen wurden geschrieben in: D:\Oracle81\network\log\listener.log
Listen auf: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=driller-nb)(PORT=1521))(PROTOCOL_STACK=(PRESENTATION=TTC)(SESSION=NS)))
TIMESTAMP * CONNECT DATA [* PROTOCOL INFO] * EVENT [* SID] * RETURN CODE
19-APR-01 09:07:28 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=)(USER=mdriller))(COMMAND=status)(ARGUMENTS=64)(SERVICE=LISTENER)(VERSION=135286784)) * status * 0
19-APR-01 09:08:04 * service_register * MDR50 * 0
19-APR-01 09:08:11 * trc_level * 0
19-APR-01 09:08:16 * trc_level * 0
---------------- BEGIN TNSLSNR DEBUG ---------------------
*** ENDPOINT #1 **
Name:
Address: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=driller-nb)(PORT=1521))(PROTOCOL_STACK=(PRESENTATION=TTC)(SESSION=NS)))
Presentation: ttc
Session: NS
Info = <none>
Display: <none>
Load: 0
Handler ID = 80FFE377148D-41F8-AAC2-09A8BD4BE682
Oracle SID = <none>
Flags:
** INSTANCE #1 **
INSTANCE_NAME: MDR50
SERVICE_NAMEs: MDR50
INSTANCE LOAD: 0
INSTANCE ID: 4CC2FCDA6819-40D2-839D-F1628CC0BCA2
FLAGS: LOCAL
VERSION: 81500
NUM. HANDLERS: 2
Handler Matrix: (NS):
tcp nmp spx raw ipc beq lu62 tcps ANY
ttc 0 0 0 0 0 0 0 0 0
giop 0 0 0 0 0 0 0 0 0
http 0 0 0 0 0 0 0 0 0
ro 0 0 0 0 0 0 0 0 0
ANY 0 0 0 0 0 0 0 0 2
Handler Matrix: (RAW):
tcp nmp spx raw ipc beq lu62 tcps ANY
ttc 0 0 0 0 0 0 0 0 0
giop 0 0 0 0 0 0 0 0 0
http 0 0 0 0 0 0 0 0 0
ro 0 0 0 0 0 0 0 0 0
ANY 0 0 0 0 0 0 0 0 0
SERVICE HANDLERS:
Name: DEDICATED
Address: (ADDRESS=(PROTOCOL=beq)(PROGRAM=oracle)(ENVS=)(ARGV0=oracleMDR50)(ARGS='(LOCAL=NO)'))
Presentation: <none>
Session: <none>
Info = LOCAL SERVER
Display: DEDICATED SERVER
Load: 0
Handler ID = 83CB008C17A3-4E48-94DA-2765A62AAD7E
Oracle SID = <none>
Flags: BEQUEATH
Name: DEDICATED
Address: (ADDRESS=(PROTOCOL=BEQ)(PROGRAM=oracle)(ARGV0=oracleMDR50)(ARGS='(DESCRIPTION=(LOCAL=no)(ADDRESS=(PROTOCOL=BEQ)))'))
Presentation: <none>
Session: NS
Info = LOCAL SERVER
Display: DEDICATED SERVER
Load: 0
Handler ID = D9E0EC298D16-40FA-935F-7B989D139666
Oracle SID = MDR50
Flags: BEQUEATH CONNECTED DYNAMIC
** INSTANCE #2 **
INSTANCE_NAME: PLSExtProc
SERVICE_NAMEs: PLSExtProc
INSTANCE LOAD: 0
INSTANCE ID: 000000000000-0000-0000-000000000000
FLAGS: LOCAL
NUM. HANDLERS: 1
Handler Matrix: (NS):
tcp nmp spx raw ipc beq lu62 tcps ANY
ttc 0 0 0 0 0 0 0 0 0
giop 0 0 0 0 0 0 0 0 0
http 0 0 0 0 0 0 0 0 0
ro 0 0 0 0 0 0 0 0 0
ANY 0 0 0 0 0 0 0 0 1
Handler Matrix: (RAW):
tcp nmp spx raw ipc beq lu62 tcps ANY
ttc 0 0 0 0 0 0 0 0 0
giop 0 0 0 0 0 0 0 0 0
http 0 0 0 0 0 0 0 0 0
ro 0 0 0 0 0 0 0 0 0
ANY 0 0 0 0 0 0 0 0 0
SERVICE HANDLERS:
Name: DEDICATED
Address: (ADDRESS=(PROTOCOL=beq)(PROGRAM=extproc)(ENVS=)(ARGV0=extprocPLSExtProc)(ARGS='(LOCAL=NO)'))
Presentation: <none>
Session: <none>
Info = LOCAL SERVER
Display: DEDICATED SERVER
Load: 0
Handler ID = 56D4DAD11082-4097-992C-AF7F8067D858
Oracle SID = <none>
Flags: BEQUEATH
---------------- END TNSLSNR DEBUG ---------------------
19-APR-01 09:08:28 * debug * 0
19-APR-01 09:08:41 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=)(USER=mdriller))(COMMAND=status)(ARGUMENTS=64)(SERVICE=LISTENER)(VERSION=135286784)) * status * 0
19-APR-01 09:09:57 * ping * 0
19-APR-01 09:10:16 * (CONNECT_DATA=(SID=MDR50)(CID=(PROGRAM=)(HOST=slarti)(USER=mdriller))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.10.34)(PORT=55678)) * establish * MDR50 * 0
19-APR-01 09:14:39 * trc_level * 0
19-APR-01 09:14:58 * trc_level * 0
19-APR-01 09:15:06 * trc_level * 0
19-APR-01 09:16:16 * trc_level * 0
19-APR-01 09:16:20 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=)(USER=mdriller))(COMMAND=status)(ARGUMENTS=64)(SERVICE=LISTENER)(VERSION=135286784)) * status * 0
19-APR-01 09:16:33 * trc_level * 0
19-APR-01 09:17:09 * ping * 0
19-APR-01 09:17:51 * (CONNECT_DATA=(SID=MDR50)(CID=(PROGRAM=)(HOST=slarti)(USER=mdriller))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.10.34)(PORT=55695)) * establish * MDR50 * 0
19-APR-01 09:18:06 * MDR50 * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.10.34)(PORT=55695)) * service_update * MDR50 * 0
19-APR-01 09:23:33 * (CONNECT_DATA=(SID=MDR50)(CID=(PROGRAM=)(HOST=deep-thought)(USER=mdriller))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.10.22)(PORT=42006)) * establish * MDR50 * 0
19-APR-01 09:28:09 * MDR50 * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.10.22)(PORT=42006)) * service_update * MDR50 * 0
19-APR-01 09:28:25 * ping * 0
null

Rather than
MyDB.10gXE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = MYSERVER)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
why not go with the bulk standard tnsnames entry as follows:-
XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = MYSERVER)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
I don't think the qualified MyDB.10gXE name is adding any value and may well confuse things.
Although setting it for my environment does work
C:\Documents and Settings\mtownsen.ST-USERS>tnsping myDB.10gXE
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 09-NOV-2
005 18:06:48
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
C:\oraclexe\app\oracle\product\10.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = mtownsen
-lap.us.oracle.com)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_
NAME = XE)))
OK (40 msec)
OK - when I use your entry pasted directly from the above, with my server name, I get the following problem:-
C:\Documents and Settings\mtownsen.ST-USERS>tnsping myDB.10gXE
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 09-NOV-2
005 18:07:43
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
C:\oraclexe\app\oracle\product\10.2.0\server\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION =
TNS-12533: TNS:illegal ADDRESS parameters
I added back some spaces, as indicated by the . below, and it works fine
MyDB.10gXE =
(DESCRIPTION =
.(ADDRESS = (PROTOCOL = TCP)(HOST = mtownsen-lap.us.oracle.com)(PORT = 1521))
.(CONNECT_DATA =
.(SERVER = DEDICATED)
.(SERVICE_NAME = XE)
.)

TNS-12535: TNS:operation timed out with ORA-609

Hi All,
In 11gR2 Database on Linux ,I am getting the below error for one client only -
This is a c++ application which is accessing database from different linux machines with Oracle Client installed on each machine(OCI).
C++ application is working fine from all linux machines except the one which in mentioned in the below alert log error.
But from this client I can connect to the database using sql*client -
The Error is
====================================
Fatal NI connect error 12170.
   VERSION INFORMATION:
         TNS for Linux: Version 11.2.0.3.0 - Production
         Oracle Bequeath NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production
         TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production
   Time: 07-AUG-2013 18:19:51
   Tracing not turned on.
   Tns error struct:
     ns main err code: 12535
TNS-12535: TNS:operation timed out
     ns secondary err code: 12606
     nt main err code: 0
     nt secondary err code: 0
     nt OS err code: 0
   Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=xx.xx.xxx.55)(PORT=57181))
Wed Aug 07 18:22:02 2013
piodr aborting process unknown ospid (29122) as a result of ORA-609
Port Number in client address is keep changing.
====================================
C++ application captures below error messages on client -
Error - ORA-03135: connection lost con
Error - ORA-12636: Packet send failed
=======================================
I have tried to increase the
SQLNET.INBOUND_CONNECT_TIMEOUT and
Listener.ora: INBOUND_CONNECT_TIMEOUT_listener_name
But it is not working.
I have also tried the steps mentioned in the document id Doc ID 119706.1 and Doc ID 1116960.1 but no luck.
Please suggest any other things that I can check.
Thanks,
Abhijit

please, refer to:
https://forums.oracle.com/thread/2434970

Listener overloaded or High load .?..ORA-12535: TNS:operation timed out

We have an OLTP db server with oracle 11g(11.1.0.7) installed on Linux 64bit OS.
Client : Dotnet application running on win2003 server
oracle client version on webServer 9.2.0.4
Work load on system is
Avg Executions Per Sec 1273.35
Avg Executions Per Txn 42.1
Avg Response Time Per Txn (secs) .13
Avg User Transaction Per Sec 30.4
Avg Concurrent Sessions on server 350 processes 600
memory_target 13gb
we are experiencing "ORA-12535: TNS:operation timed out" while users access the application from webserver.per day around 200 errors.
To get rid of the above error we set SQLNET.INBOUND_CONNECT_TIMEOUT=0 in server side sqlnet.ora and
in Listener.ora inbound_connect_timeout=120 but of no use, even we observed for few days with inbound_connect_timeout=0.
There is Only one listener configured on server.
The similar set up with lesser workload working fine without any errors.
Please let me know your thoughts....
--Pandey
Edited by: user12204025 on Feb 10, 2010 8:14 AM
Edited by: user12204025 on Feb 12, 2010 2:52 PM

But I am seeing this errors in listener alert file.
<msg time='2010-02-15T15:55:37.734-06:00' org_id='oracle' comp_id='tnslsnr'
type='UNKNOWN' level='16' host_id='hostname.domainname'
host_addr='127.0.0.1'>
<txt>15-FEB-2010 15:55:37 * 12502
</txt>
</msg>
<msg time='2010-02-15T15:55:37.734-06:00' org_id='oracle' comp_id='tnslsnr'
type='UNKNOWN' level='16' host_id='hostname.domainname'
host_addr='127.0.0.1'>
<txt>TNS-12502: TNS:listener received no CONNECT_DATA from client
</txt>
</msg>
and in alert log file below entry...
Fatal NI connect error 12170.
VERSION INFORMATION:
TNS for Linux: Version 11.1.0.7.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 11.1.0.7.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 11.1.0.7.0 - Production
Time: 15-FEB-2010 02:46:21
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12560
nt main err code: 505
TNS-00505: Operation timed out
nt secondary err code: 110
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=gatewayip)(PORT=4804))
please let me know your thoughts.....

Urgent help please : ORA-12535: TNS:operation timed out

Hi,
We have 3 jobs scheduled at 6am accesing the same procedure.
2 jobs are succesful when one job is failing with this error always for more than 3 weeks at same time
ORA-12535: TNS:operation timed out
The same job is executed fine at the other times.
Can this be a failure due to a job conflict.
2 jobs which pass are purging.
The job which is failing is a select statement
Please help us

there is no sqlnet.log in the server the error came
But there is sqlnet.ora from the other opponent server where
Fatal NI connect error 12535, connecting to:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(Host=equinox-ia.nat.bt.com)(Port=1541))(CONNECT_DATA=(SID=iap)(CID=(PROGRAM=oracle)(HOST=dygkr01)(USER=webman))))
VERSION INFORMATION:
     TNS for HPUX: Version 9.2.0.7.0 - Production
     Oracle Bequeath NT Protocol Adapter for HPUX: Version 9.2.0.7.0 - Production
     TCP/IP NT Protocol Adapter for HPUX: Version 9.2.0.7.0 - Production
Time: 28-JAN-2009 15:29:30
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12560
nt main err code: 505
TNS-00505: Operation timed out
nt secondary err code: 238
nt OS err code: 0
Fatal NI connect error 12535, connecting to:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(Host=equinox-ia.nat.bt.com)(Port=1541))(CONNECT_DATA=(SID=iap)(CID=(PROGRAM=oracle)(HOST=dygkr01)(USER=webman))))
VERSION INFORMATION:
     TNS for HPUX: Version 9.2.0.7.0 - Production
     Oracle Bequeath NT Protocol Adapter for HPUX: Version 9.2.0.7.0 - Production
     TCP/IP NT Protocol Adapter for HPUX: Version 9.2.0.7.0 - Production
Time: 28-JAN-2009 15:30:46
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12560
nt main err code: 505
TNS-00505: Operation timed out
nt secondary err code: 238
nt OS err code: 0
nt secondary err code: 238
nt OS err code: 0
nt secondary err code: 238
nt OS err code: 0
nt secondary err code: 238
nt OS err code: 0
DBTIDY will cleanup log in 1 days from 28/01/09
Fatal NI connect error 12535, connecting to:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(Host=equinox-ia.nat.bt.com)(Port=1541))(CONNECT_DATA=(SID=iap)(CID=(PROGRAM=oracle)(HOST=dygkr01)(USER=webman))))
VERSION INFORMATION:
     TNS for HPUX: Version 9.2.0.7.0 - Production
     Oracle Bequeath NT Protocol Adapter for HPUX: Version 9.2.0.7.0 - Production
     TCP/IP NT Protocol Adapter for HPUX: Version 9.2.0.7.0 - Production
Time: 29-JAN-2009 09:05:39
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12560
nt main err code: 505
TNS-00505: Operation timed out
nt secondary err code: 238
nt OS err code: 0
Fatal NI connect error 12535, connecting to:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(Host=equinox-ia.nat.bt.com)(Port=1541))(CONNECT_DATA=(SID=iap)(CID=(PROGRAM=oracle)(HOST=dygkr01)(USER=webman))))
VERSION INFORMATION:
     TNS for HPUX: Version 9.2.0.7.0 - Production
     Oracle Bequeath NT Protocol Adapter for HPUX: Version 9.2.0.7.0 - Production
     TCP/IP NT Protocol Adapter for HPUX: Version 9.2.0.7.0 - Production
Time: 29-JAN-2009 09:06:55
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12560
nt main err code: 505
TNS-00505: Operation timed out
nt secondary err code: 238
nt OS err code: 0

ORA-12535: TNS:operation timed out (during DBLINK testing)

Hi,
I have created a database link using the follwoing script :
create database link UIIODS.WORLD
connect to <user_id>
identified by <pwd>
using '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 147.147.3.41)(PORT = 1552))
(CONNECT_DATA =
(SERVICE_NAME = uiiods)
But when I am executing the sql : select * from [email protected]
it gives the error : ORA-12535: TNS:operation timed out.
I am trying to create the database link from a 9.2.0.5 database server and sid of this service_name is R2SRVR5.world.
Please find below TNS,sqlnet and listener entries of the server R2SRVR5.WORLD :
R2SRVR5_DBSRC.WORLD =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 157.227.6.39)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = R2SRVR5.WORLD)
UIIODS.PROD =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 147.147.3.41)(PORT = 1552))
(CONNECT_DATA =
(SERVICE_NAME = uiiods)
# SQLNET.ORA Network Configuration File: C:\oracle\ora92\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
# NAMES.DEFAULT_DOMAIN = tcskolkata.co.in
SQLNET.AUTHENTICATION_SERVICES= (NONE)
NAMES.DIRECTORY_PATH= (TNSNAMES, ONAMES, HOSTNAME)
# 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 = tcs061243)(PORT = 1521))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = C:\oracle\ora92)
(PROGRAM = extproc)
(SID_DESC =
(GLOBAL_DBNAME = R2SRVR5.WORLD)
(ORACLE_HOME = C:\oracle\ora92)
(SID_NAME = R2SRVR5)
(SID_DESC =
(GLOBAL_DBNAME = dbsrc.world)
(ORACLE_HOME = C:\oracle\ora92)
(SID_NAME = dbsrc)
(SID_DESC =
(GLOBAL_DBNAME = NEWDBSRC.WORLD)
(ORACLE_HOME = C:\oracle\ora92)
(SID_NAME = NEWDBSRC)
PING and TNSPING working fine,but DBLINK is not working.
Please provide a solution.
Thanks in Advance,
Koushik

Hi,
Sorry for late response. Please find below the timing for TNSPING.
C:\>ping 147.147.3.41
Pinging 147.147.3.41 with 32 bytes of data:
Reply from 147.147.3.41: bytes=32 time=246ms TTL=247
Reply from 147.147.3.41: bytes=32 time=242ms TTL=247
Reply from 147.147.3.41: bytes=32 time=237ms TTL=247
Reply from 147.147.3.41: bytes=32 time=227ms TTL=247
Ping statistics for 147.147.3.41:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 227ms, Maximum = 246ms, Average = 238ms
C:\>tnsping 147.147.3.41
TNS Ping Utility for 32-bit Windows: Version 10.1.0.2.0 - Production on 29-DEC-2005 15:03:49
Copyright (c) 1997, 2003, Oracle. All rights reserved.
Used parameter files:
C:\Oracle10g_Home\network\admin\sqlnet.ora
Used EZCONNECT adapter to resolve the alias
Attempting to contact (DESCRIPTION=(CONNECT_DATA=(SERVICE_NAME=147.147.3.41))(ADDRESS=(PROTOCOL=TCP)(HOST=147.147.3.41)(PORT=1521)))
OK (700 msec)
C:\>tnsping uiiods.prod
TNS Ping Utility for 32-bit Windows: Version 10.1.0.2.0 - Production on 29-DEC-2005 15:04:02
Copyright (c) 1997, 2003, Oracle. All rights reserved.
Used parameter files:
C:\Oracle10g_Home\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 147.147.3.41)(PORT = 1552))) (CONNECT_DATA = (SERVICE_NAME = uiiods)))
OK (580 msec)
Please suggest any solution.
Regards,
Koushik

Got error in sqlnet.log TNS-12535: TNS:operation timed out

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