Question

Cant connect to Oracle instance

Asked by: LFLFM

We had an energy shortage and all servers were suddenly turned off. (yeh, we need to get those no-breaks sorted out...)
Something went wrong in the db server (Windows Server 2003 - Oracle 11g) and now one of our instances will not take connections. I get the following errors on each of the following situations:
1.
sqlplus SYSTEM/MANAGER@H9DMO
ORA-12528: TNS:listener: all appropriate instances are blocking new connections
Then it asks for user ID, and no matter what I type I get (before it even asks for a password):
ORA-12560: TNS:protocol adapter error

2.
sqlplus /nolog
shutdown immediate
ORA-12560: TNS:protocol adapter error

3.
set oracle_sid=H9DMO
sqlplus SYSTEM/MANAGER
ORA-12560: TNS:protocol adapter error

4.
sqlplus SYS as sysdba
password: MANAGER
ORA-12560: TNS:protocol adapter error


I seriously need to get this sorted asap... there are 2 instances that work in this same database, connecting directly to them (eg. sqlplus system/manager@intraprd) works fine.
I am no db expert so I have no idea how to fix this. I have tried to restart the server.
I searched the oracle home directory structure for alert and found no alert log...

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Asked On
2009-01-14 at 10:32:27ID24051882
Tags

Oracle Instance ORA-12528 ORA-12560 TNS listener

,

PeopleSoft

Topics

Oracle Database

,

Oracle ERP

,

Oracle 11.x Database

Participating Experts
2
Points
500
Comments
5

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Answers

 

by: egarrisonPosted on 2009-01-14 at 14:31:55ID: 23378535

Check your listener. At a dos prompt or terminal window(linux) type: LSNRCTL

LSNRCTL> STATUS

I would also do STOP and START.  Double check that your listener.log file is not full.  On Windoze, it can only be about 1.75GB.  If it is larger, do
LSNRCTL> set log_status false
then rename it.



 

by: dvzPosted on 2009-01-16 at 09:24:13ID: 23395118

The missing steps above would include something like:

lsnrctl set log_status off
! or host mv $ORACLE_HOME/network/log/listener.ora $ORACLE_HOME/network/log/listener.0
lsnrctl set log_status on

confirm with: lsnrctl status

Secondly, are your instances in archivelog mode?  If not, you may be looking at a point in tie recovery based upon your last good backup.

Thirdly, your sample steps seems a bit out of order.  As Oracle, FROM THE BACK END try:

sqlplus /nolog
conn / as sysdba

which should give you a session prompt with which you may SHUTDOWN IMMEDIATE then STARTUP your instance.  Eliminate the client-side session until you are sure you have a vaiable, local instance.

 

by: dvzPosted on 2009-01-30 at 12:02:26ID: 23512265

Hello LFLFM, have you made any progress on this?

 

by: LFLFMPosted on 2011-03-15 at 14:09:33ID: 35142398

Sorry I never posted a response here, I really forgot to return and check or post that I had found the problem. It was my init file that got corrupted (I found the error in the windows event log).
I was unable to even delete the file! (I believe the HD sector may have been damaged).
At the time, just to get things running, I renamed the corrupted file  and copied one of the automatic backups that Oracle makes.
Oracle started just fine.

Thanks for the answers and again, sorry that I just asked and abandoned the question.

20120131-EE-VQP-002

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