Dbca failure (9i install, Solaris64):cant find oratab, and ORA-27102 out of memory

Trying to install 9i Enterprise Edition on Solaris 9 (64 bit), get two messages during running Database Configuration Assistant:
"/var/opt/oracle/oratab file not found"
followed later by
"ORA-27102 out of memory"
1. I searched the entire system (all drives, directories) but no such file oratab.
2. ?
What to do?
Thanks,
Joe

Yes, the missing oratab problem was solved by running root.sh
Had been missed on first install attempt.
Thanks for your help!
Hi,
i think is some problem with installation coz oratab is a file created by root.sh and updated by the Database Configuration Assistant when creating
a database.so you required oratab in /var/opt/oracle in solaris as database configure assistance lookup there for oratab.
either copy this file from somewhere and try or try to reinstall.
reply me the following question:
1)which user and group you use to install oracle
2)check is root.sh avilable in your $ORACLE_HOME or/and in $ORACLE_HOME/install/util.
Yogi
[email protected]

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Getting ORA-27102: out of memory while creating DB using DBCA

Hi All,
I am working on 11.2.0.3 oracle version and linux OS. I am trying to create a new database using dbca and getting error "ORA-27102: out of memory".
Please find the DB version and OS level parameters info below and let me know what i need to do to overcome this issue.
SQL> select * from v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0 - Production
CORE 11.2.0.3.0 Production
TNS for Linux: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production
$uname -a
Linux greenlantern1a 2.6.18-92.1.17.0.1.el5 #1 SMP Tue Nov 4 17:10:53 EST 2008 x86_64 x86_64 x86_64 GNU/Linux
$cat /etc/sysctl.conf
kernel.shmall = 2097152
kernel.shmmax = 4294967295
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.core.rmem_default = 4194304
net.core.wmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_max = 1048576
fs.file-max = 6815744
fs.aio-max-nr = 1048576
net.ipv4.ip_local_port_range = 9000 65500
$free -g
total used free shared buffers cached
Mem: 94 44 49 0 0 31
-/+ buffers/cache: 12 81
Swap: 140 6 133
$ulimit -l
32
$ipcs -lm
------ Shared Memory Limits --------
max number of segments = 4096
max seg size (kbytes) = 4194303
max total shared memory (kbytes) = 8388608
min seg size (bytes) = 1
Please let me know for any other details.
Thanks in advance.

Ok, first, let's set aside the issue of hugepages for a moment. (Personally, IMHO, if you're doing manual memory mangement, and you're not using hugepages, you're doing it wrong.)
Anyhow, looking at your SHM parameters:
kernel.shmall = 2097152
kernel.shmmax = 4294967295
kernel.shmmni = 4096
Let's take those in reverse order:
1.) shmmni - This is the max number of shared memory segments you can have on your system, regardless of the size of each segment.
2.) shmmax - Contrary to popular belief, this is NOT the max amount of shared memory you can allocate system wide! This is the max size, in bytes of a single shared memory segment. You currently have it set to 4GB-1. This is probably fine. Even if you wanted an SGA larger than 4GB, having shmmax set to this wouldn't hurt you. Oracle would simply allocate multiple shared memory segments, until it had allocated enough memory for the SGA. There's really no harm there, unless this parameter is set really low, causing a huge number of tiny shared memory segments to be allocated.
3.) shmall - This is the real shared memory segment limit. This number is the total amount of shared memory you're permitted to allocate, system wide, expressed in pages. Pagesize here is the native OS pagesize, which is 4096 bytes, so, this is 2097152 * 4096 = 8589934592, or, 8GB. So, 8GB is the maximum amount of memory that can currnetly be allocated to shared memory, on your machine.
So, having said all that, you haven't mentioned how many, if any, other Oracle databases are running on the server or their sizes. Secondly, we have no idea what memory sizing parameters you have set on the database that you're trying to create, that's getting the error.
So, if you can provide more details, in terms of how many other databases are already on this server, and their SGA sizes, and the parameters you've chosen for the database that's failing to create, perhaps we can help more.
Finally, if you're not using SGA_TARGET or MEMORY_TARGET, you really need to take the time to configure hugepages. Particularly if you've got a server that has as much memory as you do, and you're planning to have non-trivially sized SGA (10s of GB), then you really want to configure hugepages.
Hope that helps,
-Mark

ORA-27102: out of memory. Faild to install oracle 10gR2 on Solaris 10

Hi, I want to install oracle on my solaris machine. I have 2.5G RAM and more than 5G swap file. But the ORA-27102: out of memory error occurred at installing the Oracle Database Configuration Assistant step(Copying database files Creating and starting Oracle instance).
The only warnings bellow:
Checking kernel parameters
Checking for BIT_SIZE=64; found BIT_SIZE=64. Passed
Checking for shmsys:shminfo_shmmax=4294967295; found no entry. Failed <<<<
Checking for shmsys:shminfo_shmmni=100; found no entry. Failed <<<<
Checking for semsys:seminfo_semmni=100; found no entry. Failed <<<<
Checking for semsys:seminfo_semmsl=256; found no entry. Failed <<<<
Check complete. The overall result of this check is: Failed <<<<
Problem: The kernel parameters do not meet the minimum requirements (see above).
What's the reason and how may I resolve it?
Thanks!

I set some kernel parameters like: set shmsys:shminfo_shmmax=4294967295 and so on. Restart the computer and run dbca+ and configure in advance mode. There's a stage require the size of flash_recover_segment of which the default size number is 2048M. WOW, out of memory on my pc of course.
So I think it's the parameter value during the installation progress bring on the ORA-27102 problem. However, during the first installation, there's no prompt for me to enter the parameter; or I didn't see.

Windows 64-Bit Oracle DBCA creating new Instance ORA-27102: out of memory

Wondering has anyone encountered this?
We are running Oracle 10 R2 running on Windows Server 2003 ( This database is on a 64-bit Platform)
Memory capacity is 16 GB on the server.
We are using DBCA to streamline db creation of the new “EDR” DB instance – here are a few different attempts we’ve done:
(all have failed )
FYI - during this installation we’ve monitored the memory allocation/usage of the Windows Server and there
was about 13-14 GB Free
The existing instance takes up less than 4GB of space.
We tried following:
1. Allocating 8GB of Memory to new EDR Instance without shutting down other Oracle Instance.
2. Allocating 8GB of Memory to new EDR Instance and shutting down other Oracle Instance
3. Rebooted Server keeping other oracle instance shutdown.
4. After Reboot Allocated 8GB to new EDR Instance
5. Attempted allocating less memory 2GB to new EDR instance
6. Early this morning we also tried omitting backup scheduling as part of configuration for DBCA
for that instance.
Each time we received error in DBCA GUI during DB Creation at 2% completion
ORA-27102: out of memory
oraclehome\product\10.2.0\db_1\cfgtoollogs\dbca\EDR
(cloneRmanRestore.log) first set of file created. (along with a RmanRestoreDatafile.sql, which failed (see log below)
then halted install/creation of DB
ORA-27102: out of memory
OSD-00025: additional error information
O/S-Error: (OS 1453) Insufficient quota to complete the requested service.
select TO_CHAR(systimestamp,'YYYYMMDD HH:MI:SS') from dual
ERROR at line 1:
ORA-01034: ORACLE not available
ORA-27102: out of memory
OSD-00025: additional error information
ORA-27102: out of memory
OSD-00025: additional error information
O/S-Error: (OS 1453) Insufficient quota to complete the requested service.
select TO_CHAR(systimestamp,'YYYYMMDD HH:MI:SS') from dual
ERROR at line 1:
ORA-01034: ORACLE not available
ORA-27102: out of memory
OSD-00025: additional error information
ORA-27102: out of memory
OSD-00025: additional error information
ORA-27102: out of memory
OSD-00025: additional error information
ORA-27102: out of memory
OSD-00025: additional error information
ORA-27102: out of memory
OSD-00025: additional error information
ORA-27102: out of memory
OSD-00025: additional error information
ORA-27102: out of memory
OSD-00025: additional error information
ORA-27102: out of memory
OSD-00025: additional error information

After much effort it was discovered it was a setting during the installation of a parameter which caused this error. Using the TEMPLATE to create a new instance, you can setup parameters
LOCK_SGA = TRUE
causes this error. In addition if in our situation, even if we did not use the "template" created a barebones DB instance. Once the parameter is updated in SQL*Plus it will cause the datbase to be in a in operable state.
You can start it up with a PFILE to fix it, In windows it required modifying the registry to FORCE the PFILE to load, by running on the commandline to use the PFILE it failed.
Hope this helps someone in the future..
ON WINDOWS DONT USE
LOCK_SGA = TRUE
It may work fine for Unix/LINUX OS? But in our current config it had problems.

While creating DB using DBCA getting ORA-27102: out of memory in Linux

Hi All,
I am working on 11.2.0.3 oracle Redhat linux. I am getting error "ORA-27102: out of memory" while creating a new database using dbca
Below are the DB ans OS details. Please check it and let me know what i need to do to overcome this issue.
SQL> select * from v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0 - Production
CORE 11.2.0.3.0 Production
TNS for Linux: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production
$uname -a
Linux greenlantern1a 2.6.18-92.1.17.0.1.el5 #1 SMP Tue Nov 4 17:10:53 EST 2008 x86_64 x86_64 x86_64 GNU/Linux
$cat /etc/sysctl.conf
# Controls the maximum shared segment size, in bytes
kernel.shmmax = 68719476736
# Controls the maximum number of shared memory segments, in pages
kernel.shmall = 4294967296
kernel.shmall = 2097152
kernel.shmmax = 4294967295
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.core.rmem_default = 4194304
net.core.wmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_max = 1048576
fs.file-max = 6815744
fs.aio-max-nr = 1048576
net.ipv4.ip_local_port_range = 9000 65500
$free -g
total used free shared buffers cached
Mem: 94 44 49 0 0 31
-/+ buffers/cache: 12 81
Swap: 140 6 133
$ulimit -l
32
$ipcs -lm
Shared Memory Limits
max number of segments = 4096
max seg size (kbytes) = 4194303
max total shared memory (kbytes) = 8388608
min seg size (bytes) = 1
Also created a trace file under trace loction and it suggesting to changes shm parameter value. but i am not sure which parameter (shmmax or shmall) and value i need to modify.
below are trace file info
Trace file /u02/app/oracle/diag/rdbms/beaconpt/beaconpt/trace/beaconpt_ora_9324.trc
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORACLE_HOME = /u02/app/oracle/product/11.2.0.3
System name: Linux
Node name: greenlantern1a
Release: 2.6.18-92.1.17.0.1.el5
Version: #1 SMP Tue Nov 4 17:10:53 EST 2008
Machine: x86_64
Instance name: beaconpt
Redo thread mounted by this instance: 0 <none>
Oracle process number: 0
Unix process pid: 9324, image: oracle@greenlantern1a
*** 2012-02-02 11:09:53.539
Switching to regular size pages for segment size 33554432
Switching to regular size pages for segment size 4261412864
skgm warning: ENOSPC creating segment of size 00000000fe000000
fix shm parameters in /etc/system or equivalent
Please let me what are the kernel parameter values i need to chage to work this.
Thanks in advance.

Yes it is same question, but i didn't have any solution there and still looking for some help. the solution it was provided in the last post is not working and getting the same error even with less thn 20% of memory. Please let me know how to overcome this issue.
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Ora-27102: out of memory error on Solaris 10 SPARC zone install or Oracle10

All
I'm stuck!! Tried for days now ,and can't get this working.
I"m getting the classic: "ora-27102: out of memory" error. However, my memory settings seem fine.
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Hi,
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Dbca failure (9i install, Solaris64):cant find oratab, and ORA-27102 out of memory

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