Connect Error 12537
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Sql Error 12537
error messages   OraDev.com What to do with ORA-12537: TNS: connection closed error The ora-12537 tns connection closed toad ORA-12537 is an information message and means that the connection has been closed. This can be caused by a number of reasons: 1. Database
Ora 12537 Network Session End Of File
is shut down (maybe for nightly backup), but connection to database was kept by client. 2. A time-out occurred on the client-connection. 3. When firewall closes idle connections. 3. A configuration problem in sqlnet.ora or listener.ora. 4. You have a path name that is too long for the ora-12537: tns:connection closed sap Oracle TNS client on windows. (MetaLink Note:263489.1 ) This issue is due to the connection string being large enough that the connection packet is being split into two packets and then sent to the listener. There are several workarounds for the issue. a. Install the exe in a shorter named directory. b. Modify the TNS Names entry so that it is shorter. c. Replace domain names with IP Addresses if that shortens and vice versa. d. Remove any parameters from the entry that are not needed. e. Patch the Database Listener to the most recent version. 5. Oracle security is enables (for example in Oracle Apps). Solution either: a) Edit sqlnet.ora file and add your client-ip to tcp.invited_nodes. b) Remove secutity by editing sqlnet.ora and comment out parameter tcp.validnode_checking = yes by adding # at the beginning of the line.
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Ora-12537 Tns Connection Closed Oracle 10g
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Tns Connection Closed Solution
title. You can not post a blank message. Please type your message and try again. More tns-12537 tns-12560 tns-00507 discussions in General Database Discussions All PlacesDatabaseGeneral Database Discussions This discussion is archived 6 Replies Latest reply on Nov 18, 2011 9:28 AM by ray_h ORA-12537: http://www.oradev.com/ORA-12537_TNS_connection_closed.html TNS:connection closed ray_h Nov 9, 2011 4:23 PM Oracle DB: 11.2.0.1.0 on Linux x86 I've just installed a database patch, which seems to have gone well. A pre-requisite for this was shutting down the database. Following install, I restarted the database but now cannot connect to it unless I'm connecting internally. When https://community.oracle.com/thread/2310310 I attempt to connect normally, I get this: sqlplus ray@bvcloneSQL*Plus: Release 11.2.0.1.0 Production on Wed Nov 9 16:04:12 2011 Copyright (c) 1982, 2009, Oracle. All rights reserved. Enter password: ERROR: ORA-12537: TNS:connection closed I've looked at a number of threads on this, none of which seem to help. Both tnsnames.ora and listener.ora are looking at the same port (1521) The only clue I have is that tnsping gives different results when run as different users: As oracle on Linux: tnsping bvclone(DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = atlas)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = bvclone))) OK (0 msec) As myself on Linux: tnsping bvclone TNS Ping Utility for Linux: Version 11.2.0.1.0 - Production on 09-NOV-2011 16:09:51 Copyright (c) 1997, 2009, Oracle. All rights reserved. Used parameter files: Used HOSTNAME adapter to resolve the alias Attempting to contact (DESCRIPTION=(CONNECT_DATA=(SERVICE_NAME=))(ADDRESS=(PROTOCOL=TCP)(HOST=nn.nnn.nn.nnn)(PORT=1521))) TNS-12535: TNS:operation timed out I can see that the service name is missing
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12537 [message #544275] Tue, 21 February 2012 00:56 sandeip Messages: 23Registered: May 2011 Location: pune Junior Member I have one error in alert log of my database with version 11.2.0.1.0 and OS is microsoft windows 2003(service pack 2) "********************************************* ************************** Fatal NI connect error 12537, connecting to: (LOCAL=NO) VERSION INFORMATION: TNS for 32-bit Windows: Version 11.2.0.1.0 - Production Oracle Bequeath NT Protocol Adapter for 32-bit Windows: Version 11.2.0.1.0 - Production Windows NT TCP/IP NT Protocol Adapter for 32-bit Windows: Version 11.2.0.1.0 - Production Time: 17-JAN-2012 23:51:10 Tracing not turned on. 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 opiodr aborting process unknown ospid (7980) as a result of ORA-609 Tue Jan 17 23:51:12 2012 *********************************************************************** Fatal NI connect error 12537, connecting to: (LOCAL=NO) VERSION INFORMATION: TNS for 32-bit Windows: Version 11.2.0.1.0 - Production Oracle Bequeath NT Protocol Adapter for 32-bit Windows: Version 11.2.0.1.0 - Production Windows NT TCP/IP NT Protoco l Adapter for 32-bit Windows: Version 11.2.0.1.0 - Production Tue Jan 17 23:51:12 2012 *********************************************************************** Time: 17-JAN-2012 23:51:12 Fatal NI connect error 12537, connecting to: (LOCAL=NO) Tracing not turned on. VERSION INFORMATION: TNS for 32-bit Windows: Version 11.2.0.1.0 - Production Oracle Bequeath NT Protocol Adapter for 32-bit Windows: Version 11.2.0.1.0 - Production Windows NT TCP/IP NT Protocol Adapter for 32-bit Windows: Version 11.2.0.1.0 - Production Tns error struct: Time: 17-JAN-2012 23:51:12 ns main err code: 12537 Tracing not turned on. Tns error struct: TNS-12537: TNS:connection closed ns main err code: 12537 ns secondary err code: 12560 TNS-12537: TNS:connection closed nt main err code: 0 ns secondary err code: 12560 nt secondary err code: 0 nt main err code: 0 nt OS