Problem with Dataguarg ORA-01102: cannot mount database in EXCLUSIVE mode

Hi,
I'm trying to create a physical standby database on my Oracle9i DB runing
on WinXP.
Note: I have both Primary and Standby on the same system.
Actually everything went well .... I did created the standby DB but the problem
is I can not start my primary DB if my standby DB is mounted.
I get this error:
ORA-01102: cannot mount database in EXCLUSIVE mode
And when I read about the error message I learnt that I should start my DB in
compatible mode ... please how do I do that?
Or possibly how can I make this work.
Regards,
Cherish

Actually, I remember doing that in the Pry pfile but cannot really remember if I do that in the standby pfile.
I'll check and get back to you.
I'm very grateful for that.
Regards,
Cherish

Similar Messages

PMON and ORA-01102: cannot mount database in EXCLUSIVE mode error

hello all
I have been asked to look into a problem server with the following details
OS: sunOS 5.8
Oracle: 10.2.0.1
sys user password is not available !
backgrround processes for the instance(sid=test) are running
only schema credentials available and with that user is able to connect.
verified all oraenv parameters(ORACLE_SID is same as the running instance(test)).
only one instance is configured in this server(verified all tnsnames.ora, data files etc).oratab is empty
the issues are,
when I tried to connect to the server using "oracle" user using conn / as sysdba
1. Tried to shutdown using , shutdown immediate
ORA-01507:database not mounted
ORACLE instance shut down
still able to see the background processes and user is able to connect
2. Tried startup command,
In the nomount state I can see more than one PMON process with the same sid
when tried to mount/open
ran into the error,
ORA-01102: cannot mount database in EXCLUSIVE mode
Eventhough the background processes for the "test" instance are running I am not able to shutdown the instance using "oracle" user
please help
newbie

hi
i renamed lk* file but the issue still remains,
with the oracle user
1./ as sysdba
2. shutdown immediate
this leads to
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
SVR4 Error: 2: No such file or directory
still not able to identify the running oracle instance.
there is only one oracle home and the oraenv details are set with the correct values
verified the alert log(ora home details are matching with the env details), details of the oracle processes which are active are in the alert log along with the startup failures(mount errors) at the tail end
oracle sysdba is not able to identify the already running instance?
please help
newbie

ORA-01102: cannot mount database in EXCLUSIVE mode

Hello,
I am working with an Oracle VM Template: Oracle Application Server 10g Release 3 WebCenter (x86 32-bit). In this template exists an Oracle database (version: 10.2.0.3.0), I am trying to do something operation (ie create a new user, query a system template, etc) but I can't because I have ORA-01102 error.
I have DB and listener up :
$ORACLE_HOME/bin
lsnrctl status
LSNRCTL for Linux: Version 10.2.0.3.0 - Production on 18-MAR-2011 08:25:04
Copyright (c) 1991, 2006, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_ORCL)))
STATUS of the LISTENER
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 10.2.0.3.0 - Production
Start Date                18-MAR-2011 08:09:45
Uptime                    0 days 0 hr. 15 min. 19 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File
+/u01/app/oracle/product/10.2.0/db_1/network/admin/listener.ora+
Listener Log File         /u01/app/oracle/product/10.2.0/db_1/network/log/listener.log
Listening Endpoints Summary...
+(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_ORCL)))+
+(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=haovm007)(PORT=1521)))+
+(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=haovm007)(PORT=8080))(Presentation=HTTP)(Session=RAW))+
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
Service "orcl_XPT" has 1 instance(s).
Instance "orcl", status READY, has 1 handler(s) for this service...
The command completed successfully
I have export environment variables:
export ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1/
export ORACLE_SID = orcl
+export PATH = ${ORACLE_HOME}bin:${PATH}+
Then I connect to DB:
sqlplus> connect / as sysdba
+sqlplus> shutdown {abort/immediate}+
ORA-01507: database not mount+
ORACLE instance shutdown
+sqlplus> startup {mount}+
ORACLE instance startup
ORA-01102: cannot mount database in EXCLUSIVE mode+
So, I have checked listener.ora and tnsnames.ora and they are OK, so I don't know why I can't access to the DB.
Any idea/suggestion is welcome!
Thank you in advance and regards,
Mónica.

Mónica wrote:
Hi Kamran Agayev A.,
thank you so much, I have solve the issue!!
I have executed your command, and after I startup the DB and it works!!!
Regards,
MónicaWell done! :)
Kamran Agayev A.
Oracle ACE
My Oracle Video Tutorials - http://kamranagayev.wordpress.com/oracle-video-tutorials/

Oracle ORA-01102故障: cannot mount database in EXCLUSIVE mode

SQL> conn /as sysdba
Connected to an idle instance.
SQL> startup
oracle instance started.
Total System Global Area 276824064 bytes
Fixed Size 778736 bytes
Variable Size 137371152 bytes
Database Buffers 138412032 bytes
Redo Buffers 262144 bytes
ORA-01102: cannot mount database in EXCLUSIVE mode
出现这个问题，可能是由于断电的问题，解决方法是
出现1102错误可能有以下几种可能：
一、在HA系统中，已经有其他节点启动了实例，将双机共享的资源（如磁盘阵列上的裸设备）占用了；
二、说明 oracle 被异常关闭时，有资源没有被释放，一般有以下几种可能，
1、 oracle 的共享内存段或信号量没有被释放；
2、 oracle 的后台进程（如SMON、PMON、DBWn等）没有被关闭；
3、用于锁内存的文件lk<sid>和sgadef<sid>.dbf文件没有被删除。
首先，虽然我们的系统是HA系统，但是备节点的实例始终处在关闭状态，这点通过在备节点上查数据库状态可以证实。
其次、是因系统掉电引起数据库宕机的，系统在接电后被重启，因此我们排除了第二种可能种的1、2点。最可疑的就是第3点了。
查$ORACLE_HOME/dbs目录：
$ cd $ORACLE_HOME/dbs
$ ls sgadef*
sgadef* not found
$ ls lk*
lkORA92
果然，lk<sid>文件没有被删除。将它删除掉
$ rm lk*
再启动数据库，成功。
如果怀疑是共享内存没有被释放，可以用以下命令查看：
$ipcs -mop
IPC status from /dev/kmem as of Thu Jul 6 14:41:43 2006
T ID KEY MODE OWNER GROUP NATTCH CPID LPID
Shared Memory:
m 0 0×411c29d6 –rw-rw-rw- root root 0 899 899
m 1 0×4e0c0002 –rw-rw-rw- root root 2 899 901
m 2 0×4120007a –rw-rw-rw- root root 2 899 901
m 458755 0×0c6629c9 –rw-r—– root sys 2 9113 17065
m 4 0×06347849 –rw-rw-rw- root root 1 1661 9150
m 65541 0xffffffff –rw-r–r– root root 0 1659 1659
m 524294 0×5e100011 –rw——- root root 1 1811 1811
m 851975 0×5fe48aa4 –rw-r—– oracle oinstall 66 2017 25076
然后它ID号清除共享内存段：
$ipcrm –m 851975
对于信号量，可以用以下命令查看：
$ ipcs -sop
IPC status from /dev/kmem as of Thu Jul 6 14:44:16 2006
T ID KEY MODE OWNER GROUP
Semaphores:
s 0 0×4f1c0139 –ra——- root root
s 14 0×6c200ad8 –ra-ra-ra- root root
s 15 0×6d200ad8 –ra-ra-ra- root root
s 16 0×6f200ad8 –ra-ra-ra- root root
s 17 0xffffffff –ra-r–r– root root
s 18 0×410c05c7 –ra-ra-ra- root root
s 19 0×00446f6e –ra-r–r– root root
s 20 0×00446f6d –ra-r–r– root root
s 21 0×00000001 –ra-ra-ra- root root
s 45078 0×67e72b58 –ra-r—– oracle oinstall
根据信号量ID，用以下命令清除信号量：
$ipcrm -s 45078
如果是 oracle 进程没有关闭，用以下命令查出存在的 oracle 进程：
$ ps -ef|grep ora
oracle 29976 1 0 Jun 22 ? 0:52 ora_dbw0_ora92
oracle 29978 1 0 Jun 22 ? 0:51 ora_dbw1_ora92
oracle 5128 1 0 Jul 5 ? 0:00 oracleora92 (LOCAL=NO)
然后用kill -9命令杀掉进程
$kill -9 <PID>
总结：
当发生1102错误时，可以按照以下流程检查、排错：
1.如果是HA系统，检查其他节点是否已经启动实例；
2.检查 oracle 进程是否存在，如果存在则杀掉进程；
3.检查信号量是否存在，如果存在，则清除信号量；
4.检查共享内存段是否存在，如果存在，则清除共享内存段；
5.检查锁内存文件lk<sid>和sgadef<sid>.dbf是否存在，如果存在，则删除

No, its still not helping..even after trying to kill the semaphores:
/opt/oracle/product/db10g/dbs (ac4orcloms01-ac4:emrep)> ipcs
------ Shared Memory Segments --------
key shmid owner perms bytes nattch status
0x00000000 0 oracle 640 538968064 1 dest
0x00000000 32769 oracle 600 192 1 dest
0x00000000 65538 oracle 600 1474564 8 dest
------ Semaphore Arrays --------
key semid owner perms nsems
------ Message Queues --------
key msqid owner perms used-bytes messages
/opt/oracle/product/db10g/dbs (ac4orcloms01-ac4:emrep)> ipcrm -m 32769
/opt/oracle/product/db10g/dbs (ac4orcloms01-ac4:emrep)> ipcrm -m 65538
/opt/oracle/product/db10g/dbs (ac4orcloms01-ac4:emrep)> ipcs
------ Shared Memory Segments --------
key shmid owner perms bytes nattch status
0x00000000 0 oracle 640 538968064 1 dest
0x00000000 32769 oracle 600 192 1 dest
0x00000000 65538 oracle 600 1474564 8 dest
------ Semaphore Arrays --------
key semid owner perms nsems
------ Message Queues --------
key msqid owner perms used-bytes messages
/opt/oracle/product/db10g/dbs (ac4orcloms01-ac4:emrep)> ps -e f|grep emrep
3273 ? Ds 0:00 ora_ckpt_emrep
/opt/oracle/product/db10g/dbs (ac4orcloms01-ac4:emrep)>

Pls need your help!! ORA-01102: cannot mount database in EXCLUSIVE mode

I really appreciate if you can help me.
In the test environment Oracle 10g r2, I was trying to change some init.ora parameters and some flashback database parameters. Flashback required to start in mount exclusive, and the init parameters only start mount. I do not know the difference between mount and mount exclusive. i used start mount exclusive to alter all the parameters. At the end, I used ALTER DATABASE OPEN. Now, I can't start the database. The following is the error that I am getting. Can you explain the difference between start mount and start mount exclusive.
Thanks, Terry
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
SQL> startup mount;
ORA-01081: cannot start already-running ORACLE - shut it down first
SQL> shutdown immediate;
ORA-01507: database not mounted
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 612368384 bytes
Fixed Size 1980616 bytes
Variable Size 230688568 bytes
Database Buffers 377487360 bytes
Redo Buffers 2211840 bytes
ORA-01102: cannot mount database in EXCLUSIVE mode

sidney$ ps -ef| grep ora_
oracle 13663 1 0 16:39:46 ? 0:00 ora_mmon_orcl
oracle 13150 1 0 14:46:07 ? 0:00 ora_q000_orcl
oracle 13105 1 0 14:45:29 ? 0:02 ora_dbw0_orcl
oracle 13107 1 0 14:45:29 ? 0:01 ora_lgwr_orcl
oracle 13117 1 0 14:45:30 ? 0:04 ora_mmon_orcl
oracle 13099 1 0 14:45:28 ? 0:01 ora_pmon_orcl
oracle 13119 1 0 14:45:30 ? 0:05 ora_mmnl_orcl
oracle 13113 1 0 14:45:30 ? 0:00 ora_reco_orcl
oracle 13115 1 0 14:45:30 ? 0:01 ora_cjq0_orcl
oracle 13136 1 0 14:45:51 ? 0:00 ora_arc0_orcl
oracle 13152 1 0 14:46:07 ? 0:00 ora_q001_orcl
oracle 13126 1 0 14:45:36 ? 0:01 ora_rvwr_orcl
oracle 13680 13615 0 16:46:00 pts/6 0:00 grep ora_
oracle 13667 1 0 16:39:46 ? 0:00 ora_d000_orcl
oracle 13101 1 0 14:45:28 ? 0:01 ora_psp0_orcl
oracle 13142 1 0 14:45:56 ? 0:00 ora_qmnc_orcl
oracle 13138 1 0 14:45:52 ? 0:00 ora_arc1_orcl
oracle 13121 1 0 14:45:30 ? 0:00 ora_d000_orcl
oracle 13655 1 0 16:39:45 ? 0:00 ora_ckpt_orcl
oracle 13103 1 0 14:45:28 ? 0:01 ora_mman_orcl
oracle 13669 1 0 16:39:46 ? 0:00 ora_s000_orcl
oracle 13653 1 0 16:39:45 ? 0:00 ora_lgwr_orcl
oracle 13649 1 0 16:39:44 ? 0:01 ora_mman_orcl
oracle 13123 1 0 14:45:31 ? 0:00 ora_s000_orcl
oracle 13647 1 0 16:39:44 ? 0:00 ora_psp0_orcl
oracle 13659 1 0 16:39:45 ? 0:00 ora_reco_orcl
oracle 13111 1 0 14:45:29 ? 0:04 ora_smon_orcl
oracle 13109 1 0 14:45:29 ? 0:04 ora_ckpt_orcl
oracle 13665 1 0 16:39:46 ? 0:00 ora_mmnl_orcl
oracle 13678 1 0 16:45:05 ? 0:00 ora_j000_orcl
oracle 13651 1 0 16:39:45 ? 0:00 ora_dbw0_orcl
oracle 13657 1 0 16:39:45 ? 0:00 ora_smon_orcl
oracle 13645 1 0 16:39:44 ? 0:00 ora_pmon_orcl
oracle 13661 1 0 16:39:46 ? 0:00 ora_cjq0_orcl
sidney$

Error message in Command line (cannot mount database in EXCLUSIVE mode)

Hello Experts
I'm new in Oracle and trying to connect to my database though SQL command line. After I login as SYS I user I get the message that 'connected to idle instance'. Then I use “STARTUP” to connect to database. Now from my understanding it should mount the database and open it as well. But it does'nt happens.Instead I get the message 'cannot mount database in EXCLUSIVE mode' . I'm not sure why it can't mound the database and what should I do to make it working. Please can somebody show me how to make it working again. Here are the details about my problem
Enter user-name: SYS as SYSDBA
Enter password:
Connected to an idle instance.
SQL> startup
ORACLE instance started.
Total System Global Area 595591168 bytes
Fixed Size 1220748 bytes
Variable Size 301993844 bytes
Database Buffers 285212672 bytes
Redo Buffers 7163904 bytes
ORA-01102: cannot mount database in EXCLUSIVE mode
Thanks a lot in advance.

Thank you so much for both of you. I've checked everything. All looks fine to me and then i tried to connect though SQL and it worked. Now what I've notice that this time I didn't start Enterprise Manager only I started the listner and then start sql it worked. Does this means that I can't use both SQL and EM at a time together?

ORA-011-2 cannot mount database in Exclusive mode

This is brand new both Oracle 10g and SUSE 9.3 install. The installation went fine, no errors. At the end I tried to verify the installation:
sqlplus /nolog
SQL>connect / as sysdba
Connected to an idle instance
SQL>startup
ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/opt/oracle/product/10g/dbs/initmydb.ora'
SQL>
So, I figured the missing initmydb file must be in different directory so I looked for it, started new shell session and entered this:
ln -s @ORACLE_BASE/admin/orcl/pfile/initmydb.ora
$ORACLE_HOME/dbs/initmydb.ora
Now I get the following error:
SQL>startup
ORA-011-2 cannot mount database in Exclusive mode
This is third time that I am triyng to install both SUSE and Oracle from scratch and I always run in the same problem, so you can only imagine how I feel.

Now after reading many documents I am even more confused. The thing is, now I can connect to EM and manage database, create tables, etc, which means the database is up, right? However, I am unable to verify the database existance in sqlplus.
First after I connect as sysdba in sqlplus, the console says "Connected to an idle instance". When I enter show sga sqlplus, the sqlplus displays 0. Startup comand will display error in the above post.
So, the bottom line is, according to the EM the database is up and running (I can use isqlplus too) but not according to sqlplus on the server itself. What'sgoing on here? I've been reading every single paper on Oracle's and Novell SUSE web sites and couldn't find anything about it.

Cannot mount database in exclusive mode

Hi guys
for practice Ive installed oracle 10g on centos 4, when i try to start the db it showed no pfile(it created the spfile while installing oracle but fails to recognize that) I created the pfile and when I tried to start the db it is throwing the error ORA-01102 cannot mount the database in exclusive mode. I didnt start any databases but it is throughing this error
any one please help.

venkata_sudheer wrote:
for practice Ive installed oracle 10g on centos 4, when i try to start the db it showed no pfile(it created the spfile while installing oracle but fails to recognize that)
I created the pfile and when I tried to start the db it is throwing the error ORA-01102 cannot mount the database in exclusive mode. I didnt start any databases
but it is throughing this error You can try to create pfile:
SQL> create pfile from spfile;How you tryed to mount?
Like this?
SQL> STARTUP EXCLUSIVE MOUNT dbnameExclusive mode is usually needed when SYSTEM tablespace is being migrated.

Starts up but ORA-205 cannot mount database

I dont seem to understand. I run windows 98 and installed oracle 8i Personal Edition.
First,I cannot get scott and tiger to log me Senond, going in as Database Administrator to start database, it starts but does not mount - 'ORA-205, CANNOT MOUNT DATABASE,
Could a 64 meg ram machine not be enough as it recommends 96 meg.
or
Could it be because at a certain stage duirng installation, it detects there is an older database which it wants me to migrate, but which i bypassed as I prefer to start anew. I see it is not by force to migrate if you do not want to.
Could someone be of help please.
null

I think you could identify the database ALERT file to find what might cause the error.
The alert file is default located in:
$ORACLE_HOME/admin/bdump
Try to find it, and see what happened.

Regarding ORA-01102 ORACLE COULD NOT MOUNT DATABASE IN EXCLUSIVE MODE.

Hellow Friends,
I was testing my recovery strategy for control file. Out of two my control files I deleted one and tried to start when oracle gave me error that could not find so and so file in such and such location. I than copied first member which is in other location to the deleted file location. Since than I could not start my database gving me same error ORA-01102.
Yes I can recreate control file because I am having all my other files intact.
Now is there anybody who share knowledge with me to feel me pride of such honour.
Thanks All.
Your Friend.
Sumeet.

Hi all
On this - it had me vexed for a while, I was installing
8.1.7 on Solaris 2.9 - but when I went to prep the db,
kept on getting the error 01102.
Found out that if I shut down the db (immediate),
changed the 'remote_password' param to shared then went back in to svrmgr - reshut the database and redid startup pfile=$ORACLE_HOME/etc it cured the problem.
Suspect this is a hangover from 7, when Oracle kept enforcing defaults on setting up dbs, bit like their catalog and catproc scripts, they still have errors that were there in the
year dot.
Cheers

POL-4104 cannot mount database with a duplicate volume

Using a Oracle Lite database when performing a seond sync... I get this error
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Please help!!! urgent!!!
Thanks

I have used DBINFO and also made sure that my id values are different in ODBC.ini but still encountering the same problem,
Second sync is nothing but in our project we use the oracle9ilite for synchroniztion of multiple databases at different locations so we do a sync process at different locs.
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Hi User,
The best thing to do to ensure connectivity with Oracle databases is a tnsping command. If you can tnsping it, then OBIEE should be able to connect to it.
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at com.sun.jdo.spi.persistence.support.ejb.util.CaptureSchemaWrapper.mai
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Problem with Dataguarg ORA-01102: cannot mount database in EXCLUSIVE mode

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