Errors - ORA-01034, ORA-27101 & Linux-x86_64 Error: 2: No such file or dir

Question

I have installed Oracle 10g database and AS 10g on SUSE linux EE 10 (SP2)
When I try to log in as system/system using sqlplus locally on the server, it works fine. However, when I try the following I get error messages:
SQL> conn system/system@botsdb
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux-x86_64 Error: 2: No such file or directory
I tried the same from my laptop through sqlplus and the error message is the same.
I checked if the database was up and to check this I executed follwing commands whicle still being logged as system/system:
SQL>Select * from v$database;
SQL>Select * from v$instance;
SQL>Select * from tab;
These do bring results. Also if I try to start up the database again, it gives error message that the database is already up. I have restarted the db number of times, checked if my listener was listening on the service BOTSDB and these all seem fine.
It is very intriguing that when @BOTSDB is attached while connecting, the connection fails.
Can someone please guide me to sort this error?
Thanks and kind regards,
Aparna

Answer 1

Hi
I am answering all the three questions here.
1) No of instances on the machine, I understand it is 1.
2) Results of lsnrctl status
oracle@linuxserver:~> lsnrctl status
LSNRCTL for Linux: Version 10.1.0.4.2 - Production on 28-JUL-2010 09:19:33
Copyright (c) 1991, 2004, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=linuxserv.dcdm.mu)(PORT=1521)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for Linux: Version 10.1.0.4.2 - Production
Start Date 27-JUL-2010 11:24:12
Uptime 0 days 21 hr. 55 min. 20 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /oracle/app/ora10ginfra/network/admin/listener.ora
Listener Log File /oracle/app/ora10ginfra/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=linuxserver.dcdm.mu)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "metarep.dcdm.mu" has 1 instance(s).
Instance "metarep", status READY, has 3 handler(s) for this service...
The command completed successfully
--Note that lsnrctl status command was issued after loading 10ginfra.env file.
Please note that the listener for the database is set as DBLISTENER and lsnrctl status DBLISTENER was executed after loading 10gdb.env file. The results of lsnrctl status DBLISTENER are as follows:
oracle@linuxserver:~> . ./10gdb.env
oracle@linuxserver:~> lsnrctl status DBLISTENER
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 28-JUL-2010 09:24:44
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.107.123)(PORT=1650)))
STATUS of the LISTENER
Alias DBLISTENER
Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date 27-JUL-2010 15:11:28
Uptime 0 days 18 hr. 13 min. 15 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /oracle/app/ora10gdb/network/admin/listener.ora
Listener Log File /oracle/app/ora10gdb/network/log/dblistener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=172.16.107.123)(PORT=1650)))
Services Summary...
Service "BOTSDB" has 1 instance(s).
Instance "BOTSDB", status UNKNOWN, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
3) The output of ps -ef |grep pmon is
oracle@linuxserver:~> ps -ef |grep pmon
oracle 12524 12091 0 09:16 pts/1 00:00:00 grep pmon
oracle 12525 1 0 Jul27 ? 00:00:00 ora_pmon_metarep
oracle 25776 1 0 Jul27 ? 00:00:00 ora_pmon_BOTSDB
The contents of listener.ora in two different Oracle Homes (one for AS infrastrcuture and another one for database) are as follows:
oracle@linuxserver:/oracle/app/ora10ginfra/network/admin> vi listener.ora
# listener.ora Network Configuration File: /oracle/app/ora10ginfra/network/admin/listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /oracle/app/ora10ginfra)
(PROGRAM = extproc)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = linuxserv.dcdm.mu)(PORT = 1521))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
oracle@linuxserver:/oracle/app/ora10gdb/network/admin> vi listener.ora
# Generated by Oracle configuration tools.
SID_LIST_DBLISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /oracle/app/ora10gdb/)
(PROGRAM = extproc)
(SID_DESC =
(SID_NAME = BOTSDB)
(ORACLE_HOME = /oracle/app/ora10gdb/)
DBLISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.107.123)(PORT = 1650))
Kind regards,
Aparna