ORA-00020 on sqlplus / as sysdba - No Background Process Exist - Cannot Restart Db Because Cannot Connect (Doc ID 1671383.1)

Last updated on DECEMBER 06, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.1 and later
Information in this document applies to any platform.

Symptoms

-bash-3.2$ ORACLE_SID=orcl ; export ORACLE_SID
-bash-3.2$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Mon May 12 19:42:40 2014

Copyright (c) 1982, 2009, Oracle.  All rights reserved.

ERROR:
ORA-00020: maximum number of processes (600) exceeded


Enter user-name:

NO PROCESSES

-bash-3.2$ ps -ef | grep oracle | grep -v orcl
root     12761 12342  0 19:38 pts/2    00:00:00 su - oracle
oracle   12762 12761  0 19:38 pts/2    00:00:00 -bash
oracle   13631 12762  0 19:43 pts/2    00:00:00 ps -ef
oracle   13632 12762  0 19:43 pts/2    00:00:00 grep oracle
-bash-3.2$

 

Changes

Database crashed, unable to connect through sqlplus

Cause

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