Fatal Ni Connect Error 12547 Oracle
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12, 2016 - 3:19 am UTC Category: Database – Version: 11.2.0.1 Latest Followup You Asked Hi tom, In our oracle fatal ni connect error 12170 tns-12535 database setup frequently getting error like - Fatal NI connect error fatal ni connect error 12170 ora-3136 12537, connecting to: (LOCAL=NO) VERSION INFORMATION: TNS for Linux: Version 11.2.0.1.0 - Production Oracle Bequeath NT fatal ni connect error 12170 firewall 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: 27-JUL-2016 17:24:10 Tracing not turned on. Tns error
Ns Main Err Code: 12535
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 (9352) as a result of ORA-609 and we said... From MOS 1538717.1 ================================================== Alert.log shows ORA-609 with TNS-12537: TNS:connection fatal ni connect error 12637 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 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 (ab
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Nt Secondary Err Code: 110
database is working 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 https://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:9530823800346907304 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 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 http://www.dba-oracle.com/t_fatal_ni_connect_error_12170.htm 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 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,
have a script to monitor the alert.log file for any ORA-xxxx errors. With 11g we found out https://davidalejomarcos.wordpress.com/2011/01/18/removing-fatal-ni-connect-error-xxxx-from-your-alert-log/ many entries in regards of: Fatal NI connect error The problem: alert.log file 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 11.2.0.2.0 - Production Time: 17-JAN-2011 10:20:45 fatal ni 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 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 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 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 wil