TNS-12535: TNS:operation timed out & TNS-00505: Operation timed out problem

Hi all,
I am getting below error frequently on different ports + (55733 55758 56110 59365 62950 63573 63790 63992) + and connecting automatically after some period.
Fatal NI connect error 12170.
VERSION INFORMATION:
TNS for Linux: Version 11.2.0.2.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 11.2.0.2.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.2.0 - Production
Time: 18-MAR-2011 09:16:27
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=localhost.localdomain.com)(+ PORT=55733 +))
Please help me why this happening frequently and conencting automatically in this regard,
Thanks,

Hi Sunny,
Yeah connection is there but getting disconnect frequently and reconnecting again....
I was trying to make that string as italic so put the '+' symbol, and doesn't have + symbol in original file.
Please help
Edited by: user7280060 on Mar 24, 2011 1:55 AM

Similar Messages

TNS-12535: TNS:operation timed out & TNS-00505: Operation timed out

Dear Friends,
I am using Oracle Apps R12.1.1 and the DB Version is 11.1.0.7
I am getting the following error in my DB Alert Log:
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=172.16.0.9)(PORT=34370))
I would like to know this error is happening for the client 172.16.0.9?
Is it related to any server issue? Is it any critical issue?
Please let me know.
Regards,
DB

Is this error frequently occuring?
Sometimes due to network disconnection these kind of errors may happen.

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

Hi,
Whenever we check Alertlog file according to regular health of Instance. We are facing the below issue very frequently
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=172.17.100.108)(PORT=14375))
WARNING: inbound connection timed out (ORA-3136)

Hi,
Welcome to OTN form:
WARNING: inbound connection timed out (ORA-3136) please check following link: ORACLE DBA: inbound connection timed out (ORA-3136)
ORA-12535: TNS: operation timed out
Cause: The requested operation could not be completed within the time out period.
reference link: ORA-12535: TNS: operation timed out tips
Thank you

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

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.

TNS-12535 TNS Operation Timed Out....Pls HELP!!!

Hi All
I have created a oracle 9i database on my local machine and when I try to connect to it from same machine via sqlplus or OEM, I am getting this error message:
TNS-12535: TNS Operation Timed Out.
I have tried to create a new listener but still I cannot connect to database.
Does anyone has any clue what's happening.
Thank you
Amit

Hi,
You could try something, like :
If your System is a Windows system, check if the listener service is active.
Then, from DOS window :
- LSNRCTL stat, to see the status of the listener
- TNSPING <your tnsnames alias>, if you have one.
For local connections :
- set ORACLE_SID = <your SID> as environment variable, then connect as user/password without connection string.
You can also try to stop and start the listener (from dos) :
- LSNRCTL stop
- LSNRCTL start
hth
Paolo

TNS-12535: TNS:operation timed out Question

I get the following error when I try to connect using oracle 9i personal client.
TNS-12535: TNS:operation timed out
The thing is the connection worked 2 days ago and then all of the sudden I get this error.
I've tried changing the CONNECT_TIMEOUT to 0, but that hasnt work.
Anyone have a solution?
thanks, bryan

sounds like a problem reaching the database over the network (or remotely, however that may be). Be sure you have access to the directory where your tnsnames file is located, if you have TNS_ADMIN set in the regisrty, make sure it is pointing to a directory you have access to, etc. I had this error the other day and it turned out it was just failure to connect to the tnsnames file directory on our network.

Oracle 11gR2, Windows7, TNS-12535: Operation Timed Out

Hi all,
I am getting TNS-12535: Operation Timed Out.
I have windows 7 installed on 2 servers. Both server having 11gR2 installed.
I am able to ping both servers.
ServerA> Ping ServerB
Success...(Getting reply..)
ServerB> Ping ServerA
Success...(Getting reply..)
But for TNS Ping:
Connecting Local:
ServerA> TNSPing ServerA
OK
ServerB> Ping ServerB
OK
Connecting to other:
ServerA> TNSPing ServerB
TNS-12535: Operation Timed Out
ServerB> Ping ServerA
TNS-12535: Operation Timed Out
Please revert as soon as possible.
Edited by: Pavan Bhardwaj on Sep 20, 2010 12:35 AM

Hi Salman,
Pleasefind the required content below:
Server A:
# sqlnet.ora Network Configuration File: C:\app\Administrator\product\11.2.0\dbhome_1\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
# This file is actually generated by netca. But if customers choose to
# install "Software Only", this file wont exist and without the native
# authentication, they will not be able to connect to the database on NT.
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
TNSNames.ora:
# tnsnames.ora Network Configuration File: C:\app\Administrator\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
SO =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = ServerA)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = SO)
SO156 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = ServerB)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = SO)
ServerB:
# sqlnet.ora Network Configuration File: C:\app\Administrator\product\11.2.0\client_2\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
# This file is actually generated by netca. But if customers choose to
# install "Software Only", this file wont exist and without the native
# authentication, they will not be able to connect to the database on NT.
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
TNSNames.ora:
# tnsnames.ora Network Configuration File: C:\app\Administrator\product\11.2.0\dbhome_2\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
SO =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = ServerB)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = SO)
SO123 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = ServerA)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = SO)
)

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

Oracle 10g on Windows 7: TNS-12535: TNS:operation timed out

I installed Oracle 10g (Version 10.2.0) on Windows 7 Professional on my laptop. Everything installed cleanly, but I simply cannot get an Oracle-client communication going. For some reason, TNSPing keeps timing out, as follows:
C:\Users\Bruce>tnsping orcl
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 13-SEP-2
010 17:00:09
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
F:\oracle\product\10.2.0\client_1\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = Bruce-Desktop)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = ORCL)))
TNS-12535: TNS:operation timed out
I am using DHCP on my home network, but I turned off the firewall for this exercise. Also, I set up a static loopback connector = 192.168.100.100
Here is SQLNET.ORA:
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES)
Here is TNSNAMES.ORA:
ORCL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = Bruce-Desktop)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = ORCL)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
Here is LISTENER.ORA:
SID_LIST_LISTENER01 =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = F:\oracle\product\10.2.0\db_2)
(PROGRAM = extproc)
LISTENER01 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = Bruce-Laptop)(PORT = 1521))
Any help and/or guidance on how to diagnose & fix this problem would be greatly appreciated!
Thank you.

Hi Bruce,
The scenario you just provided is what you don't want. You want Bruce-Desktop to have a static address. The easiest way to have this setup properly is to look at the IP address that is assigned by the DHCP server and assign that address statically to the interface.
The way you have it now, I cannot tell which IP address Oracle will be using because that will depend on the binding order. You can control that by going to "My network places" -> "Properties" - > "Advanced" -> "Adapters and Bindings"/"Provider Order". It complicates matters though to do it that way.
Since I cannot see exactly in what state your installation is, I would suggest you start over, this time with the network setup as needed. I can help you with the setup if you are willing to go thru the installation again. Trying to guess everything that should be modified in your current installation will be too error prone.
John.
For a new, clean installation, these are the basic steps:
1. Set the computer name appropriately, something like "orahost" is a reasonable choice.
2. Set the primary DNS suffix for the computer to something like "bruce.local"
3. Set the IP address of your computer to be static (you won't even need a loopback adapter)
4. Enter the appropriate information in your hosts file, given the values I mentioned above, it should look something like:
127.0.0.1 localhost
192.168.247.120 orahost.bruce.localchange the 192.168.247.120 to whatever IP address you statically assigned in step 3
When you create the database and it wants the database name, enter <databasename>.bruce.local
Another recommendation, in that same screen, it will want the SID, I use <databasename>sid. This makes it clearer later when Oracle expects an SID instead of a connect identifier or a database name. (though most people have the sid set the same as the database name - for learning purposes, I believe you are better off with different values, in order to tell, when it wants one instead of the other - otherwise, it's hard to visualize)
This way you are mimicking an installation that is closer to a real production environment.
If you want to use DHCP, still do step 3 but reserve the IP address you assigned statically in the DHCP server, that way the static IP will match what would have been assigned by the DHCP server.
HTH,
John.

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.

Irregular TNS -12535 , did some diagnosis and now need a little guidance

Hey Guys,
I tried searching and searching for this error, tried a couple of different things but right now I am stuck. I must first say that this forum is very helpful so thank you for everyone who contributes and answers the questions.
Here i go
This is the error message I am randomly getting :
Fatal NI connect error 12170.
VERSION INFORMATION:
TNS for IBM/AIX RISC System/6000: Version 11.2.0.1.0 - Production
TCP/IP NT Protocol Adapter for IBM/AIX RISC System/6000: Version 11.2.0.1.0 - Production
Oracle Bequeath NT Protocol Adapter for IBM/AIX RISC System/6000: Version 11.2.0.1.0 - Production
Time: 05-JUL-2011 21:20:09
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=10.66.6.89)(PORT=1526))
What i have done is on the server machine (database 2) within the listener.ora set INBOUND_CONNECT_TIMEOUT_LISTENER=0
I also setup a sqlnet.ora file within $ORACLE_HOME/network/admin with the parameters
DIAG_ADR_ENABLED =OFF
SQLNET.INBOUND_CONNECT_TIMEOUT=0
in the client machine(database 1) i have the same as above within the listener.ora set INBOUND_CONNECT_TIMEOUT_LISTENER=0
I also setup a sqlnet.ora file within $ORACLE_HOME/network/admin with the parameters
DIAG_ADR_ENABLED =OFF
SQLNET.INBOUND_CONNECT_TIMEOUT=0
Also within the tnsnames.ora files i have put (SERVER=DEDICATED) (just to be on the safe side)
I thought with this there should not be a tns error at all..yet i am getting them daily at random times.
I tried to talk to networking but lets just say I need to proof it somehow that its there issue not mine.
Thanks in advance for your help

867954 wrote:
os info AIX 5.3
thanks for your prompt reply..i did
man ping
the command i used was
tnsping oisa1 2000
but im assuming thats only for 2000 pings...how can i do infinite pings?
what im doing is tnsping ois1 2000 >pingtest.txt how can i add a timestamp into that log?
i apologize for the newbie questions...while 1 = 2
do
tnsping ois1 2000 >>pingtest.txt
date >> pingtest.txt
done

Tns_Admin & Tns 12535/37

Hi,
Db : 11.2.0.3.0
OS : Red Hat Enterprise Linux Server release 5.7 (Tikanga)
We use ASM for stroage.We often get TNS 12535/37 in alert log.
Listener file is located at /u01/app/11.2.0.2/grid/network/admin/listener.ora.
But TNS_admin is differ when execute the below one as a gird user.
srvctl getenv database -d i56_0 -t "TNS_ADMIN"
I56_0:
TNS_ADMIN=/u01/app/oracle/network/admin
Should i change tns_admin in grid user?
If it's,is it solve the probelm TNS 12535/37?
Any suggestions,
Br,
Raj

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.
[oracle@localhost ~]$ oerr ora 12537
12537, 00000, "TNS:connection closed"
// *Cause: "End of file" condition has been reached; partner has disconnected.
// *Action: None needed; this is an information message.
It appears to me networking problem exists.
Oracle is the victim; not the culprit.
Root cause & fix are external to Oracle; since Oracle depends upon OS for any & all network pack exchange

TNS-12535: TNS:operation timed out & TNS-00505: Operation timed out problem

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