Shutdown abort during switch over?

Question

Hello,
I seem to notice a different behaviour between 11.2.0.1 and 11.2.0.2 during switchover on Linux 64 bit.
On primary I'm connected in sqlplus
ALTER DATABASE COMMIT TO SWITCHOVER TO PHYSICAL STANDBY;
Database altered.
exit
In alert.log:
Fri Dec 03 11:52:50 2010
Process (ospid 15296) is suspended due to switchover to physical standby operation.
Enter again in sqlplus
SQL> SHUTDOWN IMMEDIATE;
ORA-01092: ORACLE instance terminated. Disconnection forced
in alert.log
Fri Dec 03 11:53:23 2010
Performing implicit shutdown abort due to switchover to physical standby
Shutting down instance (abort)
License high water mark = 811
USER (ospid: 16022): terminating the instance
Instance terminated by USER, pid = 16022
Fri Dec 03 11:53:25 2010
Instance shutdown complete
ORA-1092 : opitsk aborting process
remaining inside sql session:
SQL> STARTUP MOUNT;
ORA-24324: service handle not initialized
ORA-01041: internal error. hostdef extension doesn't exist
exit and restart sqlplus
SQL> STARTUP MOUNT;
ORACLE instance started.
Total System Global Area 2739171328 bytes
Fixed Size          2229640 bytes
Variable Size          1207962232 bytes
Database Buffers     1509949440 bytes
Redo Buffers          19030016 bytes
in alert.log
Fri Dec 03 11:55:02 2010
Starting ORACLE instance (normal)
****************** Huge Pages Information *****************
Huge Pages memory pool detected (total: 1500 free: 1500)
DFLT Huge Pages allocation successful (allocated: 1313)
And then normal election to primary for the dr RDBMS.
But I didn't notice this "shutdown abort" when using 11.2.0.1.
The same happens if at the beginning I remain in sqlplus sesison and try to run "startup mount"
Is this expected?
Thanks in advance,
Gianluca

Answer 1

If you use IMMEDIATE, an ABORT will be performed anyway as of 11.2.0.2 and you would see the following in the alert
Performing implicit shutdown abort due to switchover to physical standby
Shutting down instance (abort)
So the answer is Yes.
You can confirm this yourself by reviewing :
11.2 Data Guard Physical Standby Switchover Best Practices using SQL*Plus [ID 1304939.1]
Best Regards
mseberg
Wow, this question is way old! Please open your own question user user11311455, you caught me before I had coffee.
Edited by: mseberg on Aug 17, 2011 8:09 AM