Fatal Ni Connect Error 12547
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Fatal NI connect error 12547 [message #619535] Wed, 23 July 2014 04:30 Subbu19 Messages: 15Registered: July 2014 Location: Chennai Junior Member Hi, Following message occurs on alert.log file Fatal NI connect error 12547, connecting fatal ni connect error 12170 tns-12535 to: (LOCAL=NO) VERSION INFORMATION: TNS for 64-bit Windows: Version 11.2.0.3.0 - Production Oracle
Fatal Ni Connect Error 12170 Ora-3136
Bequeath NT Protocol Adapter for 64-bit Windows: Version 11.2.0.3.0 - Production Windows NT TCP/IP NT Protocol Adapter for 64-bit Windows: fatal ni connect error 12170 firewall Version 11.2.0.3.0 - Production Time: 23-JUL-2014 04:18:15 Tracing not turned on. Tns error struct: ns main err code: 12547 TNS-12547: TNS:lost contact ns secondary err code: 12560 nt main err code: 0 nt
Ns Main Err Code: 12535
secondary err code: 0 nt OS err code: 0 opiodr aborting process unknown ospid (12900) as a result of ORA-609 Report message to a moderator Re: Fatal NI connect error 12547 [message #619544 is a reply to message #619535] Wed, 23 July 2014 05:11 Michel Cadot Messages: 63883Registered: March 2007 Location: Nanterre, France, http://... Senior MemberAccount Moderator ORA-12547: TNS:lost contact *Cause: Partner has unexpectedly fatal ni connect error 12637 gone away, usually during process startup. *Action: Investigate partner application for abnormal termination. On an Interchange, this can happen if the machine is overloaded. Report message to a moderator Re: Fatal NI connect error 12547 [message #619548 is a reply to message #619544] Wed, 23 July 2014 05:53 Subbu19 Messages: 15Registered: July 2014 Location: Chennai Junior Member Hi Michel, Now i am getting a different error code from alert.log file Fatal NI connect error 12170. VERSION INFORMATION: TNS for 64-bit Windows: Version 11.2.0.3.0 - Production Oracle Bequeath NT Protocol Adapter for 64-bit Windows: Version 11.2.0.3.0 - Production Windows NT TCP/IP NT Protocol Adapter for 64-bit Windows: Version 11.2.0.3.0 - Production Time: 23-JUL-2014 05:24:17 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=10.122.161.90)(PORT=50611)) WARNING: inbound connection timed out (ORA-3136) Report message to a moderator Re: Fatal NI connect error 12547 [message #619556 is a reply to message #619548] Wed, 23 July 2014 06:43 Michel Cadot Messages: 63883Registered: March 2007 Location: Nanterre, France, http://..
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Oracle 12c Fatal Ni Connect Error 12170
fatal ni connect error 12170 Oracle Database
Nt Secondary Err Code: 110
Tips by Burleson Consulting November 5, 2015 Question: Below error getting in alert log file every day, but database is working fatal ni connect error 12638 fineWhat are the reason for this Fatal ni connect error 12170? Fatal NI connect error 12170. VERSION INFORMATION: TNS for 64-bit Windows: Version 11.2.0.1.0 - Production Oracle Bequeath NT Protocol Adapter for 64-bit Windows: http://www.orafaq.com/forum/t/193730/ Version 11.2.0.1.0 - Production Windows NT TCP/IP NT Protocol Adapter for 64-bit Windows: Version 11.2.0.1.0 - Production Time: 28-MAY-2012 19:20:02 Tracing not turned on. Tns error struct: ns main err code: 12535 TNS-12535: TNS:operation timed out ns secondary err code: 12560 Answer: The fatal ni connect error 12170 is related to the ORA-12170 error: ORA-12170: TNS:Connect timeout occurredCause: The client failed to establish a connection and complete authentication http://www.dba-oracle.com/t_fatal_ni_connect_error_12170.htm in the time specified by the SQLNET.INBOUND_CONNECT_TIMEOUT parameter in the sqlnet.ora file. This error may be a result of network or system delays, or it may indicate that a malicious client is trying to cause a denial-of-service attack on the database server. The server shut down because connection establishment or communication with a client failed to complete within the allotted time interval. This may be a result of network or system delays; or this may indicate that a malicious client is trying to cause a Denial of Service attack on the server.Action: If the error occurred because of a slow network or system, reconfigure one or all of the parameters SQLNET.INBOUND_CONNECT_TIMEOUT, SQLNET.SEND_TIMEOUT, SQLNET.RECV_TIMEOUT in sqlnet.ora to larger values. If a malicious client is suspected, use the address in sqlnet.log to identify the source and restrict access. Note that logged addresses may not be reliable as they can be forged (e.g. in TCP/IP). See Also: "Configuring the Listener and the Oracle Database To Limit Resource Consumption By Unauthorized Users" for further information about setting the SQLNET.INBOUND_CONNECT_TIMEOUT parameter Action: If the error occurred due to system or network delays that are normal for the particular environment, then perform this steps:Turn on tracing to determine where clients
have a script to monitor the alert.log file for any ORA-xxxx errors. With 11g we found out many entries in regards of: Fatal NI connect error The problem: alert.log file https://davidalejomarcos.wordpress.com/2011/01/18/removing-fatal-ni-connect-error-xxxx-from-your-alert-log/ has many entries for Fatal NI connect error. Examples: *********************************************************************** Fatal NI connect error 12514, connecting to: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=xxxx)(PORT=nnn))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=sss)(CID=(PROGRAM=oracle)(HOST=xxx)(USER=oracle)))) VERSION INFORMATION: TNS for Linux: Version 11.2.0.2.0 - Production TCP/IP NT Protocol Adapter for Linux: Version http://oracle.ittoolbox.com/groups/technical-functional/oracle-db-l/tns12547-tnslost-contact-377758 11.2.0.2.0 - Production Time: 17-JAN-2011 10:20:45 Tracing not turned on. Tns error struct: ns main err code: 12564 TNS-12564: TNS:connection refused ns secondary err code: 0 nt main err code: 0 nt secondary err fatal ni code: 0 nt OS err code: 0 Error 12514 received logging on to the standby Mon Jan 17 10:21:45 2011 *********************************************************************** or *********************************************************************** 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-JAN-2011 15:13:08 Tracing not turned on. Tns error fatal ni connect 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=xx.xx.x.xx)(PORT=nnnn)) Tue Jan 18 15:40:20 2011 The solution: We will have an entry on the alert.log file every time a client connection of any kind fails to complete or is aborted. One way to minimize the impact is by using the parameter SQLNET.INBOUND_CONNECT_TIMEOUT (default to 60 seconds on 10gR2 and 11g) but, sometimes, this value is not adequate. Oracle also mentions the occurrence of this error if you use DB Console or Enterprise Manager to monitor your databases and the emagent will try to connect to the target database repeatedly and, statistically, some will fail (frequency will depend on how busy your system is). Most of the time (certainly for DB Console and Enterprise Manager Agent) the application will try to connect again and it will succeed. To fix the problem you could increase the value of SQLNET.INBOUND_CONNECT_TIMEOUT on the listener.ora and the sqlnet.ora file located on the server side. If you already have a value you have considered adequate, you might want to
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