Fatal Ni Connect Error 12170 Tns-12535
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Ns Main Err Code: 12535
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fatal ni connect error 12170 OracleTns-00505: Operation Timed Out
Database Tips by Burleson Consulting November 5, 2015 Question: Below error getting in alert log file every day, but database is working fineWhat are the reason for nt secondary err code: 110 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: 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 ns secondary err code: 12606 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 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. I
this Document Symptoms Changes Cause Solution References APPLIES TO: Oracle Net Services - Version 11.2.0.3 to 12.1.0.1 [Release 11.2 to 12.1] Information in this document applies to any platform. SYMPTOMS
Oracle 12c Fatal Ni Connect Error 12170
The following error is reported in the database alert log. ***Note the "Client fatal ni connect error 12170 tns-12535 12606 address" is posted within the error stack in this case. Fatal NI connect error 12170. VERSION INFORMATION: TNS for
Fatal Ni Connect Error 12637
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: http://www.dba-oracle.com/t_fatal_ni_connect_error_12170.htm 22-FEB-2014 12:45:09 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: 60 nt OS err code: 0 ***Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=121.23.142.141)(PORT=45679)) The PORT field here is the ephemeral port assigned to the client for this connection. This does http://dbafoiz.blogspot.com/2015/03/12170-tns-12535tns-00505-operation.html not correspond to the listener port. CHANGES No changes are necessary, but may have recently upgraded the database to 11g release 1 or higher, or installed a new Oracle11g database and they are now visible in the alert log. Note: Prior to 11gR1 these same 'Fatal NI connect error 12170' are written to the sqlnet.log. This document describes a problem that arises when a firewall exists between the client and the database server. CAUSE We can search the listener log covering the same time period using this search criteria. (HOST=121.23.142.141)(PORT=45679) The 11glistener log in text format is located here: $ORACLE_BASE/diag/tnslsnr///trace/.log Again, this is the client's IP address and the unique ephemeral port assigned to the client for this connection. In this case, we findthat this connection was established at the listener at this timestamp: 22-FEB-2014 10:42:10* (CONNECT_DATA=(SID=test)(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))) * (ADDRESS=(PROTOCOL=tcp)(HOST=121.23.142.141)(PORT=45679))* establish * test* 0 . Compare this to the event in the alert.log with special attention to the timestamp. The connection was dropped by the instance at22-FEB-2014 12:45:09or roughly 2 hours later. Time:22-FEB-2014 12:45:09 Tracing not turned on. Tns error struct: ns main err code: 12535 TNS-12535: TNS:operation timed out
network, oracle Applies to: Oracle Net Services - Version: 11.1.0.6 to 11.2.0.2 - Release: 11.1 to 11.2 Oracle Server - Enterprise Edition - Version: 11.1.0.6 to 11.2.0.2 [Release: 11.1 to http://www.vmcd.org/2011/12/problem-fatal-ni-connect-error-12170-tns-12535-tnsoperation-timed-out-reported-in-11g-alert-log/ 11.2] Information in this document applies to any platform. TNS-12170, ORA-12170, TNS-12535, TNS-00505 alert.log Symptoms nt secondary err code: 110 Monitoring of the 11g database Alert log(s) may show frequent timeout related https://dbatricksworld.com/tns-12535-tnsoperation-timed-out-and-tns-00505-operation-timed-out/ messages such as: - On Oracle Solaris: *********************************************************************** Fatal NI connect error 12170. VERSION INFORMATION: TNS for Solaris: Version 11.2.0.1.0 - Production Oracle Bequeath NT Protocol Adapter for Solaris: Version 11.2.0.1.0 - fatal ni Production TCP/IP NT Protocol Adapter for Solaris: Version 11.2.0.1.0 - Production Time: 22-JAN-2011 21:48:23 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: 145 nt OS err code: 0 Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=10.159.34.117)(PORT=1092)) ------ The "nt secondary err code" will fatal ni connect be different based on the operating system. Linux x86 or Linux x86-64: "nt secondary err code: 110" HP-UX Server: "nt secondary err code: 238" AIX: "nt secondary err code: 78" Changes No change are necessary, but may have recently upgraded the database to 11g release 1 or higher, or installed a new Oracle11g database. Note: Prior to 11gR1 these same ‘Fatal NI connect error 12170' are written to the sqlnet.log Cause These time out related messages are mostly informational in nature. The messages indicate the specified client connection (identified by the ‘Client address:' details) has experienced a time out. The ‘nt secondary err code' identifies the underlying network transport, such as (TCP/IP) timeout limits after a client has abnormally terminated the database connection. The ‘nt secondary err code' translates to underlying network transport timeouts for the following Operating Systems: For the Solaris system: nt secondary err code: 145: ETIMEDOUT 145 /* Connection timed out */ For the Linux operating system: nt secondary err code: 110 ETIMEDOUT 110 Connection timed out For the HP-UX system: nt secondary err code: 238: ETIMEDOUT 238 /* Connection timed out */ For AIX: nt secondary
2016 by Jignesh Jethwa My one of the client recently implemented firewall for security purpose, it was successful activity. When all the application server connected to database server, below mentioned error logged into an alert log file frequently. It was clear clue, firewall messed up with the client-server connections. It was the problem with Firewall "idle session timeout" value. If the client-server connection idle for more than defined value then it was forcefully dropped by firewall. Error log: Fatal NI connect error 12170. VERSION INFORMATION: TNS for Linux: Version 11.2.0.1.0 - Production Oracle Bequeath NT Protocol Adapter for Linux: Version 11.2.0.1.0 - Production TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.1.0 - Production Time: 13-APR-2016 19:26:50 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=192.xxx.xxx.xxx)(PORT=xxxx)) Work around for TNS-12535 and TNS-00505: We can remove or increase the firewall setting for maximum idle time. but it's not recommended, because who know how much time client-server connection going to be idle. So, append following parameter to RDBMS_HOME/network/admin/sqlnet.ora file on the database server. Resulting, database server check application server every