Connect Error 12535
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TNS for Linux: Version 10.2.0.4.0 - Production Oracle Bequeath NT Protocol Adapter fatal ni connect error 12170 tns-12535 for Linux: Version 10.2.0.4.0 - Production TCP/IP NT tns-12535: tns:operation timed out ns secondary err code: 12560 nt main err code: 505 Protocol Adapter for Linux: Version 10.2.0.4.0 - Production Time: 06-MAY-2009 18:54:41 Tracing not turned on. Tns ora 12535 tns operation timed out solution 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: tns-12535 tns-00505 Operation timed out nt secondary err code: 110 nt OS err code: 0 Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=*.*.*.*)(PORT=3448))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
Ns Secondary Err Code: 12606
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: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 broken. Posted by hemora at 11:47 Labels: LISTENER, Network, TNS 3 comments: Alum77 said... A great post.I had the same problem with an Oracle 12.1.0.10 and I have solved adding SQLNET.EXPIRE_TIME = 10 in the la
+ 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 entries w.r.tFatal NI connect error 12170 + TNS-12535:
Tns 12535 Tns Operation Timed Out 11g
TNS:operation timed out +TNS-00505: Operation timed out (with different ports), found in both RAC tns-00505 operation timed out nt secondary err code 110 Instances Alert Log file. Problem: Fatal NI connect error 12170. VERSION INFORMATION: TNS for Linux: Version tns-00505 operation timed out in alert log 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: 20-AUG-2014 http://hemora.blogspot.com/2013/05/how-to-resolve-tns-12535-or-tns-00505.html 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: 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 http://manishnashikkar.blogspot.com/2014/08/removing-fatal-ni-connect-error-12170.html 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 broken. **In an installation that includes GRID, this parameter should be set in the RDBMS_HOME/network/admin/sqlnet.ora file. This would be the default location for sqlnet.ora file parameters referenced by the instance. 2) One way to minimize the impact is by using the parameter SQLNET.INBOUND_CONNECT_TIMEOUT (default to 60 seconds on 10gR2 and 11g) but
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 http://www.vmcd.org/2011/12/problem-fatal-ni-connect-error-12170-tns-12535-tnsoperation-timed-out-reported-in-11g-alert-log/ Edition - Version: 11.1.0.6 to 11.2.0.2 [Release: 11.1 to 11.2] Information http://oracle.ittoolbox.com/groups/technical-functional/oracle-db-l/oracle-11g-linux-tns12535-errors-in-alert-log-5234974 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 messages such as: - On Oracle Solaris: *********************************************************************** Fatal NI connect error 12170. VERSION timed out INFORMATION: TNS for Solaris: Version 11.2.0.1.0 - Production Oracle Bequeath NT Protocol Adapter for Solaris: Version 11.2.0.1.0 - 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 operation timed out 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 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 Operatin
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