My Oracle Support Banner

Connection using “/ as sysdba” shows “ORA-27271: szingroup: group lookup failure” (Doc ID 1612762.1)

Last updated on APRIL 13, 2023

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.2 to 12.1]
IBM AIX on POWER Systems (64-bit)


Connections to a database using “/ as sysdba” report the following error

% sqlplus / as sysdba

SQL*Plus: Release Production on Wed Jan 8 12:27:32 2014

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

ORA-27271: szingroup: group lookup failure
IBM AIX RISC System/6000 Error: 3: No such process
Additional information: 869

Enter user-name:

You may also see similar error while invoking or connection using SYSOPER (sqlplus / as sysoper)


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.