[oracle@test ~]$ ps -ef|grep mmon
oracle 4031 1 0 14:40 ? 00:00:00 ora_mmon_test
oracle 4143 2997 0 14:46 pts/1 00:00:00 grep mmon
[oracle@test ~]$ kill -9 4031
[oracle@test ~]$ ps -ef|grep mmon
oracle 4747 2997 0 15:06 pts/1 00:00:00 grep mmon
[oracle@test ~]$ ps -ef|grep mmnl
oracle 4035 1 0 14:40 ? 00:00:00 ora_mmnl_test
oracle 4749 2997 0 15:06 pts/1 00:00:00 grep mmnl
[oracle@test ~]$ ps -ef|grep mmnl
oracle 4752 2997 0 15:07 pts/1 00:00:00 grep mmnl
[oracle@test ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Fri Dec 14 15:07:09 2018
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> alter system enable restricted session;
System altered.
SQL> alter system disable restricted session;
System altered.
[oracle@test ~]$ ps -ef|grep mmon
oracle 4764 1 0 15:07 ? 00:00:00 ora_mmon_test
oracle 4801 2997 0 15:08 pts/1 00:00:00 grep mmon
[oracle@test ~]$ ps -ef|grep mmnl
oracle 4768 1 0 15:07 ? 00:00:00 ora_mmnl_test
oracle 4805 2997 0 15:08 pts/1 00:00:00 grep mmnl