TNS-12537: TNS:connection closed & ORA-609

hello all,
did any body see this error and solved it ?
TNS-12537: TNS:connection closed
ns secondary err code: 12560
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
opiodr aborting process unknown ospid (19995) as a result of ORA-609
if yes could you please explain to me how to fix it ?
note :
database Version 11.2.0.2.0
Sun Solaris
Edited by: 869111 on 24/02/2013 12:18 م
Edited by: 869111 on 24/02/2013 12:27 م

Check the following parameters in sqlnet.ora file:
tcp.invited_nodes
tcp.excluded_nodes

Similar Messages

How to resolve TNS-12537: TNS:connection closed

sqlnet.ora
==========
# 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)
#SQLNET.AUTHENTICATION_SERVICES = (ALL)
tnsname.ora
===========
ORCL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = ORCL)
listener.ora
========
# listener.ora Network Configuration File: D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
(PROGRAM = extproc)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
while trying to connect into my local database(ORCL),I am receiving the following error:
C:\Documents and Settings\abcd>tnsping orcl
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 07-JUN-2
012 11:16:44
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Used parameter files:
D:\oracle\product\10.2.0\db_1\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = 127.0.0.1)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = ORCL)))
TNS-12537: TNS:connection closed
Thanks in advance.

Hi,
In your tnsnames.ora description ORCL.
ORCL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = ORCL)
) Did you create any database on localhost (HOST = 127.0.0.1)?
I think , if you want you must create database on localhost with IP 127.0.0.1
else if you want connect exists database with service name ORCL then you must change IP address
for ORCL description in tnsname.ora (for expale HOST= ORCLHOST or IP )
regards
Mahir M. Quluzade
www.mahir-quluzade.com

TNS-12537: TNS:connection closed

Hi,
I have done system copy on AIX/oracle. On new server if start the listner. it starts normally. Oracle also starts normal. Then if i starts sap with sidadm, listner stops with following error. There is no error In listner.log file.
orascp 11> lsnrctl status
LSNRCTL for IBM/AIX RISC System/6000: Version 10.2.0.2.0 - Production on 28-SEP-2008 12:11:15
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=IPC)(KEY=SCP.WORLD))
TNS-12537: TNS:connection closed
TNS-12560: TNS:protocol adapter error
TNS-00507: Connection closed
Connecting to (ADDRESS=(PROTOCOL=IPC)(KEY=SCP))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
IBM/AIX RISC System/6000 Error: 79: Connection refused
Connecting to (ADDRESS=(COMMUNITY=SAP.WORLD)(PROTOCOL=TCP)(HOST=sppprd)(PORT=1527))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
IBM/AIX RISC System/6000 Error: 79: Connection refused

Hi Sanjay,
check below notes
Note 1182020
Note 441518
Regards
Ashok

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

Urgent: -ORA-609- TNS 12537

Hi All ,
I am getting followings error in alert log.
Fatal NI connect error 12537, connecting to:
(LOCAL=NO)
nt main err code: 0
VERSION INFORMATION:
     TNS for Solaris: Version 11.1.0.7.0 - Production
     Oracle Bequeath NT Protocol Adapter for Solaris: Version 11.1.0.7.0 - Production
     TCP/IP NT Protocol Adapter for Solaris: Version 11.1.0.7.0 - Production
Mon Aug 08 00:01:00 2011
nt secondary err code: 0
Time: 08-AUG-2011 00:01:00
nt OS err code: 0
Tracing not turned on.
ORA-609 : opiodr aborting process unknown ospid (5496_1)
Tns error struct:
ns main err code: 12537
TNS-12537: TNS:connection closed
ns secondary err code: 12560
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
Mon Aug 08 00:01:08 2011
ORA-609 : opiodr aborting process unknown ospid (5541_1)
Mon Aug 08 00:01:24 2011

Hi,
id 609.1 in support say to add
Sqlnet.ora: SQLNET.INBOUND_CONNECT_TIMEOUT=120
Listener.ora: INBOUND_CONNECT_TIMEOUT_listener_name=120
However, I am not using any Sqlnet.ora
Does these error are related to GRID Control ?
because I am using separate server for grid control and trying to add production server to grid.
Also can anyone help me how to add host (prod server) to grid control (grid server)
Thanks

TNS:connection closed

Dear Experts,
My database 10gR2 and OS:Win2003R2 sp2-32 bit. My listener throw the error like below. In between i am getting this errors.
LSNRCTL> services
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=PUBLICLAN1)(PORT=1521)))
TNS-12537: TNS:connection closed
TNS-12560: TNS:protocol adapter error
TNS-00507: Connection closed
Could you give some valuable advice.
Thanks and Regards
Sundar

Thanks,
My hosts file contents inclued IP address and name of the server.
Just now i checked my listener service.I got it like that.
LSNRCTL> services
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.0.198.55)(PORT=1521))
Services Summary...
Service "DHSW.GOV.BH" has 1 instance(s).
Instance "dhsw", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1469 refused:0 state:ready
LOCAL SERVER
Service "DHSWXDB.GOV.BH" has 1 instance(s).
Instance "dhsw", status READY, has 1 handler(s) for this service...
Handler(s):
"D000" established:0 refused:0 current:0 max:1002 state:ready
DISPATCHER <machine: HIS-SRV1, pid: 4056>
(ADDRESS=(PROTOCOL=tcp)(HOST=his-srv1.dhsa.gov.bh)(PORT=1109))
Service "DHSW_XPT.GOV.BH" has 1 instance(s).
Instance "dhsw", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1469 refused:0 state:ready
LOCAL SERVER
The command completed successfully
LSNRCTL> services
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.0.198.55)(PORT=1521))
TNS-12537: TNS:connection closed
TNS-12560: TNS:protocol adapter error
TNS-00507: Connection closed
LSNRCTL> services
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.0.198.55)(PORT=1521))
Services Summary...
Service "DHSW.GOV.BH" has 1 instance(s).
Instance "dhsw", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1484 refused:0 state:ready
LOCAL SERVER
Service "DHSWXDB.GOV.BH" has 1 instance(s).
Instance "dhsw", status READY, has 1 handler(s) for this service...
Handler(s):
"D000" established:0 refused:0 current:0 max:1002 state:ready
DISPATCHER <machine: HIS-SRV1, pid: 4056>
(ADDRESS=(PROTOCOL=tcp)(HOST=his-srv1.dhsa.gov.bh)(PORT=1109))
Service "DHSW_XPT.GOV.BH" has 1 instance(s).
Instance "dhsw", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1484 refused:0 state:ready
LOCAL SERVER
The command completed successfully
Regards
Sundar

TNS-12537

Hi,
I am working in oracle 10g on windows server....
I want to connect to the oracle 10g Database which is on HP_UX....
I made the entry in TNSNAMES.ORA file and the i try to use tnsping peers
i am getting the error as
TNS-12537 connection closed...
I had made the entry of the destination machine IP in the main server...(ie database server)...
but ididnt reload the listener....
is ther any other way to resolve the error TNS-12537...

Hi,
Here are a couple of links that maybe will be helpfull.
TNS-12537 TNS:connection closed
http://www.dba-oracle.com/t_ora_12537_tns_error.htm
When you still can't find your problem, please post your listener.ora, tnsnames.ora and sqlnet.ora
HTH,
Thierry

Error while starting listener on my database TNS-1255,TNS-12560, TNS-00525

Hi All,
I am newbie to oracle and i have been struggling from last one week to get this error corrected on my database.
Listener services are not working due to which i'm unable to proceed my work. Please provide ur help as i really want to learn.
Edited by: 978366 on Jan 12, 2013 6:18 AM

Please take a look at all the details asked by you guys. It will really helpful if this can get fixed
[oraprod@mycomp admin]$ cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
10.10.10.100 mycomp.mydomain.com mycomp
[oraprod@mycomp admin]$ uname -a
Linux mycomp.mydomain.com 2.6.9-89.0.0.0.1.ELhugemem #1 SMP Tue May 19 04:38:38 EDT 2009 i686 i686 i386 GNU/Linux
SQL> select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
CORE 10.2.0.1.0 Production
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
listener.ora entry
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = mycomp.mydomain.com)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROCO))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = test.mycomp.mydomain.com)
(ORACLE_HOME = /u01/app/oraprod/product/1020/db_1)
(SID_NAME = test)
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oraprod/product/1020/db_1)
(PROGRAM = extproc)
tnsname.ora entry
TEST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = mycomp.mydomain.com)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = TEST)
listener status
[oraprod@mycomp admin]$ lsnrctl status
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 14-JAN-2013 16:44:33
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=mycomp.mydomain.com)(PORT=1521)))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
Linux Error: 111: Connection refused
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROCO)))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
Linux Error: 111: Connection refused
[oraprod@mycomp admin]$ lsnrctl start
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 14-JAN-2013 16:44:44
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Starting /u01/app/oraprod/product/1020/db_1/bin/tnslsnr: please wait...
TNS-12537: TNS:connection closed
TNS-12560: TNS:protocol adapter error
TNS-00507: Connection closed
Linux Error: 29: Illegal seek
[oraprod@mycomp admin]$

TNS-12560: TNS:protocol adapter error listener not starting up.

Hi all
we came to an issue where we have to move our server from one data centre to another after unplugging the machine and re-plugging the server
1) Operating system (OEL 5.1) started.
2) Database 11gR2 started.
3) Listener Failed to Start.
[oracle@yam01 tmp]$ lsnrctl start lsn_yscc12
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 02-OCT-2012 07:57:58
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Starting /u01/app/oracle/product/11.2.0/bin/tnslsnr: please wait...
TNS-12537: TNS:connection closed
TNS-12560: TNS:protocol adapter error
TNS-00507: Connection closed
Linux Error: 29: Illegal seek
[oracle@yam01 tmp]$
When checked in sqlnet.log we found.
[oracle@yam01 log]$ cat sqlnet.log
Directory does not exist for read/write [u01/app/oracle/product/11.2.0/log] [u01/app/oracle/product/11.2.0/log/diag/clients]
[oracle@yam01 log]$
/u01/app/oracle/product/11.2.0/log
/u01/app/oracle/product/11.2.0/log/diag/clients --> here under diag folder client folder was missing.
drwxrwxr-x 3 oracle oinstall 4096 Sep 30 12:59 /u01/app/oracle/product/11.2.0/log/diag/
*[oracle@yam01 log]$ cd /u01/app/oracle/product/11.2.0/log/diag/clients*
-bash: cd: /u01/app/oracle/product/11.2.0/log/diag/clients: No such file or directory
*[oracle@yam01 log]*
[oracle@yam01 diag]$ mkdir clients
[oracle@yam01 diag]$ ls -ltr
total 12
drwxr-x--- 3 oracle oinstall 4096 Sep 30 12:59 rdbms
-rw-r----- 1 oracle oinstall 15 Oct 2 07:43 adrci_dir.mif
drwxr-xr-x 2 oracle oinstall 4096 Oct 2 08:27 clients
[oracle@yam01 diag]$
and added *"SUBSCRIBE_FOR_NODE_DOWN_EVENT_lsn_yscc12=OFF"*
and then when started all the listener it started successfully.+_
[oracle@yam01 ~]$ lsnrctl status lsn_yscc12
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 02-OCT-2012 08:40:19
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=100.100.50.199)(PORT=1603)))
STATUS of the LISTENER
Alias lsn_yscc12
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 02-OCT-2012 08:28:09
Uptime 0 days 0 hr. 12 min. 9 sec
Trace Level admin
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/11.2.0/network/admin/listener.ora
Listener Log File /u01/app/oracle/diag/tnslsnr/yam01/lsn_yscc12/alert/log.xml
Listener Trace File /u01/app/oracle/diag/tnslsnr/yam01/lsn_yscc12/trace/ora_10095_3086223040.trc
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=100.100.50.199)(PORT=1603)))
Services Summary...
Service "YSCC12.YAMAMACEMENT.COM" has 1 instance(s).
Instance "yscc12", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
[oracle@yam01 ~]$
Thanks all for Reading this post
hope if you came across this issues this may work for you.
Best Regards
Kaleem.

Welcome to OTN
Thank you For you sharing :)

TNS-12560 TNS:protocal adapter error

Hi,
I installed vmware 5.5.3 in my desktop and installed RHEL 4 and Oracle 10.2.0.1 on RHEL 4.Created a database and is working fine.But when I tried to start the listener ,i'm getting the following error and the listener did not start.
TNS-12537: TNS: connection closed
TNS-12560: TNS:protocol adapter error
TNS-00507: Connection closed
Linux Error:29:Illegal seek
I searched for this error in our forums ,but could not find the exact resolution .
I felt Dale's answer in the below old post is little relevant but I could not understand the exact change that is to be done.
TNS-12560: TNS:protocol adapter error
can somebody please help me how to resolve this error...
Regards,
Bharath.

bharathDBA wrote:
Hi,
I installed vmware 5.5.3 in my desktop and installed RHEL 4 and Oracle 10.2.0.1 on RHEL 4.Created a database and is working fine.But when I tried to start the listener ,i'm getting the following error and the listener did not start.
TNS-12537: TNS: connection closed
TNS-12560: TNS:protocol adapter error
TNS-00507: Connection closed
Linux Error:29:Illegal seek
I searched for this error in our forums ,but could not find the exact resolution .
I felt Dale's answer in the below old post is little relevant but I could not understand the exact change that is to be done.
TNS-12560: TNS:protocol adapter error
can somebody please help me how to resolve this error...
Regards,
Bharath.TNS-12560 is symptomatic of OS/Networking mis-configuration
Oracle is the victim; not the culprit.
Both problem & fix are external to Oracle RDBMS

(Urgent) TNS-12570 TNS:packet reader failure

Hi
I have oracle 9.0.2 and developer 6i installed on the same machine for development purpose. Every thing was running fine but today when I tried to connect the form builder to database it raised following error:
TNS-12570 TNS:packet reader failure
Cause: An error occurred during a data receive. This message is not normally visible to the user.
Action: For further details, turn on tracing and re-execute the operation. If the error persists, contact Oracle Support Services.
when I tried to connect from remote machine on LAN it raised following error:
TNS-12537 TNS:connection closed
Cause: "End of file" condition has been reached; partner has disconnected. This is an informational message.
Action: No action required.
Do you have any solution to this problem
Regards
Faisal

Recently found the same problem in my system. I got this problem after installing McAfee Internet Security suite which installs personal firewall.
I un-installed oracle and re installed it result is same.I am using oracle 8i (8.1.5)
Funny part is if I give SID in sql plus then only i get this error otherwise if I put scott/tiger in sqlplus without SID it connects to database.
This does not solves my purpose coz one of my application connects to database in which dburl contains SID.
Thanks in advance
satyen

ORA-12537:TNS:TNS connection closed

i am getting this error while connecting to sqlplus. please suggest.

This error means:
ORA-12537: TNS:connection closed
Cause: "End of file" condition has been reached; partner has disconnected.
Action: None needed; this is an information message.
Which simply means your connection has ended. It is just an informative message, actually this doesn't mean an error arised.
Please provide further details on the environment where this error was produced as well as the Oracle and OS versions.
~ Madrid

ORA-12537 TNS Connection closed after OAS 4.0.8.1 Installation

finally I was able to install and start OAS
on RH 6.1, but now I can not start Ora8i (with all patches) on my system. When I start svrmgrl, will get ora-12537 TNS Connection lost error.
Can someone please help!
Thanks

They said in the install doc that you can't use the same ORACLE_HOME for 8i and OAS 4.0.8...

ORA-12537: TNS Connectio Closed

Hi,
I have Production Database Servers. The name of Production Databse Server is CB02DB1 on which we are running Oracle 9i Release 2 (64 Bit) version. This database contain our ERP database and we want to restrict some users to access databse. For this Purpose I set the Parameters
TCP.VALIDNODE_CHECKING=YES
TCP.INVITED_NODES=(DBPROD)
in my sqlnet.ora file.
Now the Problem is that we have another server whose name is DBPROD. Which contain Oracle Financial Application with 8.1.7.0.0 version database. Oracle Financial is Intigrated with our ERP. when I given the name of DBPROD in
TCP.INVITED_NODES on CB0DB1 sqlnet.ora file and restart the listener.
Now when we connect to 9i databse from DBPROD machine it gives the error
ORA-12537: TNS Connectio Closed.
Any body Help me. It is Urgent.
Regards,

Let me clarify your question, it is not totally clear to me:
You have a database on node A.
You want to allow connections only from node B.
You try to achieve this with TCP.INVITED_NODES.
It does not work, B cannot connect to the database on A.
Did I understand your problem?
Try the following:
Write B's FULL name into TCP.INVITED_NODES - does it work then?
From A, try to ping B using the full name. Does it work?
Examine listener.log on node A. Can you find an explanation?
If you are still at loss, turn on tracing for the listener, try to connect and look at listener.log again.
Yours,
Laurenz Albe

TNS: connection closed error with SQL*net

Hi all,
I've got a new installation of Oracle 11.1.0.6.0 enterprise (Linux). It works fine with direct sqlplus connections but I'm having problems with SQL*net and JDBC thin client connections.
The database is built correctly and works fine:
user@cthulhu bash[61]: sqlplus user/pwd
SQL*Plus: Release 11.1.0.6.0 - Production on Mon Aug 4 12:59:53 2008
Copyright (c) 1982, 2007, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
SQL> select * from v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
PL/SQL Release 11.1.0.6.0 - Production
CORE 11.1.0.6.0 Production
TNS for Linux: Version 11.1.0.6.0 - Production
NLSRTL Version 11.1.0.6.0 - Production
SQL>
but if I try to connect using SQL*net I get errors. I have my TNS listener configured and it starts without errors, reporting the database as a service, and tnsping is fine:
user@cthulhu bash[62]: tnsping cthulhu_mar
TNS Ping Utility for Linux: Version 11.1.0.6.0 - Production on 04-AUG-2008 13:02:07
Copyright (c) 1997, 2007, Oracle. All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION= (ADDRESS=(PROTOCOL=TCP)(HOST=192.168.2.30)(PORT=1521)) (CONNECT_DATA=(SID=mar)))
OK (10 msec)
user@cthulhu bash[63]: sqlplus user/pwd@cthulhu_mar
SQL*Plus: Release 11.1.0.6.0 - Production on Mon Aug 4 13:02:41 2008
Copyright (c) 1982, 2007, Oracle. All rights reserved.
ERROR:
ORA-12537: TNS:connection closed
Enter user-name:
In listener.log:
Mon Aug 04 13:02:41 2008
04-AUG-2008 13:02:41 * (CONNECT_DATA=(SID=mar)(CID=(PROGRAM=sqlplus)(HOST=cthulhu)(USER=marbur))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.2.30)(PORT=41754)) * establish * mar * 12518
TNS-12518: TNS:listener could not hand off client connection
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
TNS-00517: Lost contact
Linux Error: 32: Broken pipe
This is a new instance of Oracle so there is no problem with listener.log being too large (as I've seen elsewhere). I've also tried increasing PROCESSES and SESSIONS in the initSID.ora file without any impact. The listener ports are open through the firewall (and disabling it temporarily makes no difference).
Any suggestions?!
Thanks, Matt

This means nothing to me, but it could to someone else......
from listener trace:
2008-08-04 16:19:05.135381 : nlpcaini:env[161] = OLDPWD=/u01/app/oracle/product/11.1.0/db_1
2008-08-04 16:19:05.135407 : nlpcaini:env[162] = ORA_NET2_DESC=12,15
2008-08-04 16:19:05.135432 : nlpcaini:env[163] = ORACLE_SPAWNED_PROCESS=1
2008-08-04 16:19:05.135465 : nlpcaini:exit
2008-08-04 16:19:05.135498 : nsc2addr:normal exit
2008-08-04 16:19:05.135536 : nsbeqaddr:entry
2008-08-04 16:19:05.135566 : nsbeqaddr:connecting...
2008-08-04 16:19:05.135603 : nsopen:entry
2008-08-04 16:19:05.135633 : nsmal:entry
2008-08-04 16:19:05.135667 : nsmal:1012 bytes at 0x81a8538
2008-08-04 16:19:05.135694 : nsmal:normal exit
2008-08-04 16:19:05.135722 : nsopenmplx:entry
2008-08-04 16:19:05.135749 : nsmal:entry
2008-08-04 16:19:05.135779 : nsmal:2020 bytes at 0x81a8930
2008-08-04 16:19:05.135804 : nsmal:normal exit
2008-08-04 16:19:05.135831 : nsiorini:entry
2008-08-04 16:19:05.135861 : nsbal:entry
2008-08-04 16:19:05.135889 : nsbgetfl:entry
2008-08-04 16:19:05.135918 : nsbgetfl:normal exit
2008-08-04 16:19:05.135966 : nsmal:entry
2008-08-04 16:19:05.135995 : nsmal:84 bytes at 0x81b3dd8
2008-08-04 16:19:05.136020 : nsmal:normal exit
2008-08-04 16:19:05.136057 : nsbal:normal exit
2008-08-04 16:19:05.136085 : nsiorini:exit (0)
2008-08-04 16:19:05.136112 : nscpxget:entry
2008-08-04 16:19:05.136139 : nscpxget:normal exit
2008-08-04 16:19:05.136168 : nsopenalloc_nsntx:nlhthput on mplx_ht_nsgbu:ctx=81a8538, nsntx=81a8930
2008-08-04 16:19:05.136196 : nsopenmplx:normal exit
2008-08-04 16:19:05.136225 : ntpcon:entry
2008-08-04 16:19:05.136253 : ntpcon:toc = 6
2008-08-04 16:19:05.136283 : ntpcon:exit
2008-08-04 16:19:05.136313 : nsopen:opening transport...
2008-08-04 16:19:05.136341 : ntpcon:entry
2008-08-04 16:19:05.136367 : ntpcon:toc = 1
2008-08-04 16:19:05.136404 : sntpcall:entry
2008-08-04 16:19:05.157048 : sntpcall:detaching from parent with additional fork
2008-08-04 16:19:05.157304 : sntpcall:hdl[IR]=17, hdl[IW]=16
2008-08-04 16:19:05.157350 : ntpcon:exit
2008-08-04 16:19:05.157390 : nserror:entry
2008-08-04 16:19:05.157428 : nsoptions:entry
2008-08-04 16:19:05.157459 : nsoptions:lcl[0]=0x0, lcl[1]=0x2006, gbl[0]=0x0, gbl[1]=0x0, cha=0x0
2008-08-04 16:19:05.157488 : nsoptions:Vectored IO not supported.
2008-08-04 16:19:05.157518 : nsoptions:lcl[0]=0xf4ffe9ff, lcl[1]=0x6016, gbl[0]=0xe881, gbl[1]=0x0
2008-08-04 16:19:05.157545 : nsoptions:normal exit
2008-08-04 16:19:05.157574 : nsnainit:entry
2008-08-04 16:19:05.157603 : nsnainit:normal exit
2008-08-04 16:19:05.157642 : nsopen:global context check-in (to slot 6) complete
2008-08-04 16:19:05.157675 : nsopen:lcl[0]=0xf4ffe9ff, lcl[1]=0x6016, gbl[0]=0xe881, gbl[1]=0x0, tdu=4096, sdu=8192
2008-08-04 16:19:05.157706 : nsfull_opn:entry
2008-08-04 16:19:05.157735 : nsfull_opn:cid=6, opcode=65, bl=0, what=0, uflgs=0x0, cflgs=0x0
2008-08-04 16:19:05.157761 : nsfull_opn:nsctx: state=7, flg=0x4001, mvd=0
2008-08-04 16:19:05.157790 : nsfull_opn:normal exit
2008-08-04 16:19:05.157816 : nsopen:normal exit
2008-08-04 16:19:05.157854 : nsevreg:entry
2008-08-04 16:19:05.157884 : nsevreg:begin registration process for 6
2008-08-04 16:19:05.157912 : nsevregPrePost:entry
2008-08-04 16:19:05.157940 : nsevregPrePost:normal exit
2008-08-04 16:19:05.157968 : nsevreg:sgt=0, evn=1, evt[2]=0x0
2008-08-04 16:19:05.157996 : nsevreg:begin notification process for 6
2008-08-04 16:19:05.158022 : nsevregAffectNotif:entry
2008-08-04 16:19:05.158050 : nsevregAffectNotif:exit (0)
2008-08-04 16:19:05.158078 : nsevreg:rdm=0, sgt=0, evt[0]=0x800, [1]=0x800, [2]=0x0, nrg=0
2008-08-04 16:19:05.158105 : nsevreg:registering for 0x800
2008-08-04 16:19:05.158135 : ntpctl:entry
2008-08-04 16:19:05.158162 : ntpctl:exit
2008-08-04 16:19:05.158203 : nsevreg:normal exit
2008-08-04 16:19:05.158260 : nsbeqaddr:error exit
2008-08-04 16:19:05.158289 : nsbequeath:error exit
2008-08-04 16:19:05.158342 : nsglhe:exit

TNS-12537: TNS:connection closed & ORA-609

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