ORA-12547 connecting to sqlplus '/ as sysdba' on AIX
(Doc ID 372143.1)
Last updated on MARCH 02, 2025
Applies to:
Oracle Database - Enterprise Edition - Version 11.2.0.3 and laterOracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
IBM AIX on POWER Systems (64-bit)
Symptoms
- A sqlplus connection with '/ as sysdba' is producing ORA-12547 or TNS-12547:
SQL*Plus: Release 10.2.0.2.0 - Production on Tue May 16 14:10:19 2006
Copyright (c) 1982, 2005, Oracle. All Rights Reserved.
ERROR:
ORA-12547 : TNS:lost contact
- A truss is producing error 0915-015 Cannot create subject process:
truss -fae -o trace.truss sqlplus "/as sysdba"
truss: 0915-015 Cannot create subject process.
wait4all: i: 0, status: 589833, pid: 13729998, created: 0
- An Oracle trace file might also be generated with the next messages:
*** 2008-01-17 16:09:38.291
kgepop: no error frame to pop to for error 27141
*** 2008-01-17 16:09:38.291
ksedmp: internal or fatal error
ORA- 27141 is:
Error: ORA-27141
Text: invalid process ID
---------------------------------------------------------------------------
Cause: process operation attempted using invalid process ID
Cause
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In this Document
| Symptoms |
| Cause |
| Solution |
| References |