Oracle Fatal Ni Connect Error 12537 Connecting To
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Tns-12537: Tns:connection Closed Ns Secondary Err Code: 12560
In our oracle database setup frequently getting error like - Fatal NI connect error ora-609 tns-12537 tns-12560 12537, connecting to: (LOCAL=NO) VERSION INFORMATION: TNS for Linux: Version 11.2.0.1.0 - Production Oracle Bequeath NT Protocol Adapter for Linux: Version
Fatal Ni Connect Error 12537 Ns Secondary Err Code: 12560
11.2.0.1.0 - Production TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.1.0 - Production Time: 27-JUL-2016 17:24:10 Tracing not turned on. Tns error struct: ns main err code: 12537 TNS-12537: TNS:connection closed ns secondary err code: ora-609 tns-12547 12560 nt main err code: 0 nt secondary err code: 0 nt OS err code: 0 opiodr aborting process unknown ospid (9352) as a result of ORA-609 and we said... From MOS 1538717.1 ================================================== Alert.log shows ORA-609 with TNS-12537: TNS:connection closed (Doc ID 1538717.1) APPLIES TO: Oracle Net Services - Version 11.2.0.1 to 11.2.0.4 [Release 11.2] Oracle Net Services - Version 12.1.0.2 to 12.1.0.2 [Release 12.1] Information in this document fatal ni connect error 12537 ora-609 applies to any platform. SYMPTOMS Alert log shows failed incoming connection: Fatal NI connect error 12537, connecting to: (LOCAL=NO) 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 TCP/IP NT Protocol Adapter for Linux: Version 11.2.0.3.0 - Production Time: 26-FEB-2013 02:23:51 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 (28725) as a result of ORA-609 CAUSE First an explanation of this kind of errors. The message opiodr aborting process unknown ospid (.....) as a result of ORA-609 is just a notification that oracle database closed (aborted) a dedicated process because of ORA-609. ORA-609 means "could not attach to incoming connection" so the database process was 'aborted' (closed) because it couldn't attach to the incoming connection passed to it by the listener. The reason for this is found in the sqlnet error stack, in our case is: TNS-12537: TNS:connection closed. Basically the dedicated process didn't have a client connection anymore to work with. As a big picture, these are the steps for a client connection: Client initiat
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Ns Main Err Code 12537 Ns Secondary Err Code 12560
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Ora-609 Tns-12637
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fatal ni connect error 12170 Oracle 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 this Fatal ni 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 struct: ns main err fatal ni connect 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. If a malicious client is suspected, use the address