Fatal Ni Connect Error 12541 Oracle
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Fatal Ni Connect Error 12637 Connecting To (local=no)
your message and try again. More discussions in General Database Discussions All PlacesDatabaseGeneral Database Discussions This discussion is ns main err code: 12535 archived 1 2 3 Previous Next 44 Replies Latest reply on Sep 17, 2008 3:16 AM by Maran Viswarayar Go to original post This content has been marked as
Ns Main Err Code: 12564
final. Show 44 replies 15. Re: ORA-TNS:12541 639811 Sep 12, 2008 4:52 PM (in response to EdStevens) Hi steven Ha ha Ha... i laughed myself after reading ur mail..Anyway its good ya.. i m saying two listeners in that sense all listeners are up.(i too know its a server side connection establish file) now lets come to the matter.. first tns-12564: tns:connection refused i ll start from the tnsping on client machine: ***************************************** TNS Ping Utility for Linux: Version 9.2.0.5.0 - Production on 12-SEP-2008 21:45:58 Copyright (c) 1997 Oracle Corporation. All rights reserved. Used parameter files: /oracle/product/92040/network/admin/sqlnet.ora Used TNSNAMES adapter to resolve the alias Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.1.3.30)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = OWAZUAT1))) OK (10 msec) [oracle@inp1db02 ~]$ sqlplus system@owazuat1 SQL*Plus: Release 9.2.0.5.0 - Production on Fri Sep 12 21:46:33 2008 Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved. Enter password: ERROR: ORA-12541: TNS:no listener sqlnet_client.log(client machine) **************************** Fatal NI connect error 12514, connecting to: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.1.3.30)(PORT=1521))(CONNECT_DATA=( SERVER=DEDICATED)(SERVICE_NAME=OWAZDEVPS)(CID=(PROGRAM=)(HOST=inp1db02.bagic.com )(USER=oracle)))) VERSION INFORMATION: TNS for Linux: Version 9.2.0.5.0 - Production TCP/IP NT Protocol Adapter for Linux: Version 9.2.0.5.0 - Production Time: 12-SEP-2008 19:30:44 Tracing to file: /oracle/product/92040/network/trace/sqlnet_client_32121.trc Tns error struct: nr err code: 0 ns main err code: 12564 TNS-12564: TNS:connection refused ns secondary err code: 0 nt main err code: 0 nt secondary err code: 0 nt OS err code: 0 Fatal NI connect error 12541, connecting to: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.1.3.30)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)
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Fatal Ni Connect Error 12547 Connecting To Local No
This forum is for any issue related to networks or networking. Routing, network cards, OSI,
Ns Secondary Err Code: 12606
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+ Solutions etc. Wednesday, August 20, 2014 Removing Fatal NI connect error 12170 from Database Alert Log In our one of the 11gR2 Production Database, there were so many http://manishnashikkar.blogspot.com/2014/08/removing-fatal-ni-connect-error-12170.html entries w.r.tFatal NI connect error 12170 + TNS-12535: TNS:operation timed out +TNS-00505: http://dba.stackexchange.com/questions/74803/oraclesid-local-no Operation timed out (with different ports), found in both RAC Instances Alert Log file. Problem: 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 fatal ni TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production Time: 20-AUG-2014 14:17:36 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: fatal ni connect 110 nt OS err code: 0 Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=xxx.xxx.xxx.xxx)(PORT=44326)) Reason: The same error message was repeating during whole day almost for every application server.I've finally found what was causing the problem. Our database is behind a firewall. Firewall has an "idle session timeout" value. If a connection remains idle for more than the "idle session timeout" value it drops the connections.Application developers usually configure their connection pools to remain alive for a long time, which is more than the "idle session timeout" value of the firewall. Not all the connections in the pool are used. Some stays idle. After sometime the firewall drops them and I get those operation timed out problems. Solution / Workaround: 1) Add the following line to the sqlnet.ora file on the server. SQLNET.EXPIRE_TIME=10In this configuration database will probe the application servers every 10 minutes to see if they are up. In fact this is a mechanism to determine stale connections by database. Because it sends packets to application servers every ten minutes, the connections are detected as active by firewalls and they are not
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