WARNING:Oracle instance running on a system with low open file

Hi Guys
please can you advice on how to resolve this error: WARNING:Oracle instance running on a system with low open file

Answer a couple of questions for us first:
1. What version of Oracle (ex. 10.2.0.3) are you running?
2. What operating system is Oracle installed on?
3. Where did this error show up (alert log, SQL*Plus session, etc.)?
Tom

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Oracle instance running on a system with low open file descriptor

Hello.
We have 10.1.0.4 on SuSE 9 on x86 64bit Sun servers.
We have databases that if started manually come up without the warning, but if started via a shell script scheduled through a crontab start up with this warning: "Oracle instance running on a system with low open file descriptor".
My understanding is that it has to do with OS ulimit. it appears that non-interactive shell (crontab) does not set the nofiles at 65536.
All our system are set up exactly the same way. The problem is, though, that some systems do not report the warning even when started non-interactively.
My question is this: assuming my nofiles ulimit is in fact too low on all systems, why would some systems report the warning and others would not? Is there anything database specific the instance looks for when it starts, such as the number of datafiles in the database, instance memory size, etc..., which would make the instance warn in some cases but not the others?
Thank You
Boris

Thank You Satish.
This is a good reference and we may end up looking into the patch bundle associated with the bug.
But does anyone have any idea why the systems that are set up the same exact way would warn on systems and not on others?
Also, the Metalink note talks about init.crsd. I have not build an association between this inconsistency and RAC.
What I do see is that if we start up our database non-interactively (where ulimit -n resolves to 1024, instead of 65536) the warning is generated, in some cases.
Perhaps, the 1024 is too low. But then my question is why would Oracle think it is too low only on some servers and not all?
Boris

WARNING:Oracle process running out of OS kernel I/O resources

Hi!
I am getting below warning in the dbwr trace files almost daily at different times:
WARNING:Oracle process running out of OS kernel I/O resources
We are using :
SuSE Linux Enterprise Edition 10 Sp 2
OS Kernel --> 2.6.16.60-0.39.3-smp
Oracle Database 10.2.0.2 64-bit with only 5380055 bug fix applied
Storage: IBM DS 8300
fs.aio-max-nr = 65536
Please help in resolving this issue.
Regards,
Raju

Hi Mark,
Thank u for quick ur reply.
Doc #396057.1 (SuSE 10.2 OS issue) --> This note says "The archiver is getting stuck with ORA-19502 and ORA-27061", whereas in my case I'm not getting any ORA- errors in alert log nor anywhere but only getting these warnings in dbwr trace files that is also intermittently.
I have consulted my system team in regards to disk I/O they said we are using very high end storage and there are no errors or warnings in the OS system logs.
# 415872.1 --> this note says "HUNG DATABASE INSTANCE IF LINUX KERNEL MISS AIO REQUEST". This is not the situation in our case.
#6687381.8 --> says versions confirmed as being affected are 10.2.0.3 and 10.2.0.4
I'm unable to find anything which points to my situation, pls help.
regards,
raju

WARNING:Oracle process running out of OS kernel I/O resources (1)

Hi,
on my server, IBM power6, with oracle 10.2.0.4, dbwr trace report some errors like this:
*** 2010-08-31 06:26:46.574
Warning: lio_listio returned EAGAIN
Performance degradation may be seen.
WARNING:Oracle process running out of OS kernel I/O resources (1)
*** 2010-09-01 07:11:38.691
Warning: lio_listio returned EAGAIN
Performance degradation may be seen.
WARNING:Oracle process running out of OS kernel I/O resources (1)
The awr in this period of time reports:
Top 5 Timed Events Avg %Total
~~~~~~~~~~~~~~~~~~ wait Call
Event Waits Time (s) (ms) Time Wait Class
db file sequential read 509,435 2,610 5 42.3 User I/O
CPU time 1,714 27.8
log file sync 55,309 1,146 21 18.6 Commit
log file parallel write 60,498 937 15 15.2 System I/O
db file parallel write 27,166 295 11 4.8 System I/O
The workload was represented from a sqlldr with rows=100000.
Warning in trace file worry me.
Warning: lio_listio returned EAGAIN
depends on aioserver that is low, 10 instead 50, because we have 40disks*10/8 cpu.
Can anyone help me?

In note 443368.1:
" If you are using JFS/JFS2, then set the initial value to *10 times the number of logical disks divided by the number of CPUs*."
pstat -a | grep -c aios
161
lsattr -E -l aio0
autoconfig available STATE to be configured at system restart True
fastpath enable State of fast path True
kprocprio 39 Server PRIORITY True
maxreqs 4096 Maximum number of REQUESTS True
maxservers 10 MAXIMUM number of servers per cpu True
minservers 1 MINIMUM number of servers True
Edited by: Davy on 1-set-2010 3.04

CC 5.2 fails with "cannot open file /tmp/*ir*"

Hi,
compilation fails with an error message like
"Could not open file "/tmp/06710.TEMPLATE_FILE.ir"". The problem seems to be that the compiler once in a while is "leaking" these temp files (they seem to accumulate in /tmp over time) and the compiler cannot overwrite a different user's temp files. I am not sure if it matters, but all this is in a dmake context.
Why is CC generating these files in /tmp and not locally? Why doesn't it make them more unique e.g. 06710.user.TEMPLATE_FILE.ir? Is there a way to work around this problem?
Thanks.
philipp

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I am attempting to install oracle on windows at work. I have access to a share drive that has an oracle inventory. I do not have permission to write here.
When I try to install oracle locally on my C: drive, by default the installation looks in the N: drive oracle inventory and since I do not have privileges to write there, it errors out.
how do i set it so that the installer creates an oracle/inventory locally on my C: drive?

On Windows registry key 'inst_loc' defines the Oracle inventory location,obviously a previous installation set this location to shared drive N: . Unfortunately it's NOT supported to change this , statement from Oracle:
Development have stated that manually changing the "inst_loc" string in the Windows registry (under HKEY_LOCAL_MACHINE\Software\Oracle or HKLM\Software\Oracle) is officially unsupported.
You could create a 'clean' machine (remove completely all Oracle components including registry keys and start again with a fresh installation)
http://download.oracle.com/docs/cd/B19306_01/install.102/b14316/deinstall.htm#i1008427
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Oracle 9i running forms and reports with user/pass

Hi all!
How can I hide the user name and password in the internet explorer as it is shown in the full path for the sake of security I need it and also how can I pass the user/pass from a form to report without showing in address bar of Internet Explorer.
Regards
Mayank Sharma

Dear Mayank,
You can use "CGICMD.dat" file. This file can be used to add key mappings.
You add following lines at the end of this file.
MYKEY: USERID=<user_name>/<password>@<connection_string> %*
You need to restart your OC4J Instance to make above changes effective..
Then, in your web.show_document url include "CMDKEY=MYKEY".
This will definitely solve your problem.
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India.
[email protected]

Who can run in ultra turbo with low cas ramm. read pls..ill explain

This doent pertain to overclocker casue if you go over 219 fsb on 800 fsb pcu it disables mat..
Who here with an 865, 875 mobo can run 2 or 2.5 cas timings in ultra turbo with less then 215 FSB.
If so which brand ramm and what bios and board do you have .
I am about to order ramm thats iss 3-3-3-8 but i would rather get the corsair xmas which is 2-3-3-6 if id be able to run it in ultra turbo..
what do you think and all responses definately appreciated.....

Quote
Originally posted by billy
and i might be wrong is that is you disabled speed from ayto it disables mat but im unsure..
All i know is that before i flashed my bios on my old pcb, all was wel in ultra turbo ..
After the flash couldnt do it anymore regardless of old flash and msi on the phone for 2 hours....
I think the 875 p has some hidden number which it calculates as being dafe or not, if your memory regardless of what timings you set it at reads lower then it thinks safe you will crash at boot.
Thats why i am making all this hype about memory . I cant afford to rMa belive you me i want that corsair twinx1024-3200cpt thats listed in the ramm module spec. Only thing is how to tell if its version 1.1 like they ask . I dont think version 1.1 is abtainable. this is referring to the ramm list for the neo 875 fisr pcb 2.0 . Also it lists ocz but which one do i get..
From what you are telling me, is anyone will work and to get2-2-2-5 if i can , but i think there might be a catch to this when the boards reads it. Im unsure. If so how to fake out the bios and let your manuel timings stick.
On my last boord after the flash , even when i flashed back i after loading default and running onece i restarted and set them to 3-4-4-8 and if i even went from slow to fast i could not boot. This only hapened in dual mode. In single i could hit ultra turbo....
remarks lol... If you know a way around this... also if you can tell me about that corsir ramm listed in the fisr's list. i can buy it but how do i know its v1.1 lol...
no, MAT can be still enabled with SPD disabled. for example i have the performance mode enabled, but i set my RAM timings manually. but i said that before, you must have missed it...
i didnt understand what you were trying to say here, your english is pretty weird. 2-2-2-5 timings can be done only with the new Corsair XL memory, and only under 215MHz. this kinda "is" the ultra turbo mode i guess, because you cant tighten the timings anymore.
and as that other guy said, 2-3-2-6 rated memory is always a safe bet as far as compatibility is concerned, from Kingston, Corsair or whoever. the new BIOS version dont have any problems with that from my experience.
as i said, i dont understand your other questions, but i hope your memory issue is solved.
Quote
I'm not going to bother reading what everyone else posted, I have that 2-3-2-6 rated memory from corsair, and I run ultra-turbo. N/P
with SPD enabled or disabled? im just asking because i cant set MAT to ultra turbo with SPD setting the memory timings. Turbo is the best i can do here.

RUNAS another user: assistance with my batch file for control panel and explorer

Hello, for desktop support on end user or multi/generic user pcs it is nice to access common commands quickly from a batch file to run under your account. In xp both explorer and control panel apps launched without issues. The primary issue for explorer
is it appears to ignore the runas command (but the user has permissions to explorer so no error) while the control panel apps ignores run as well but does not have permissions so generates an error. The other commands all execute as the attempting admin's
account.
who it is for: the user with the admin account to execute on the user's desktop whom is a nonadmin
**please note, the commands appear to work if you do have admin rights**, the logged in user does not have admin rights to these utilities like in a common corporate environment.
"windows cannot access the specified device, path or file. You may not have the appropriate permissions to access the item."
Issue#1:
With win7 if you do a run as for explorer.exe via batch it will open, but will still be running under the signed in user. I have searched many threads on various sites and have not found a working solution for batch, this may be something I need to retire.
Issue#2: all control panel applets fail to launch through various methods.
SECTIONS THAT I AM STRUGGLING WITH:
runas /user:%auser%@DOMAINNAME "explorer.exe /separate"
runas /user:%auser%@DOMAINNAME "cmd /c Start /B rundll32.exe shell32.dll,Control_RunDLL appwiz.cpl"
"cmd /c start appwiz.cpl" also fails
alternative also fails:
runas /user:%auser%@chwi "cmd /c Start /B control.exe"
cls
@ECHO OFF
set /p auser= Enter your account login id:
:MyMenu
CLS
Echo Use the options below to run as with your admin account id:
echo.
ECHO 1 - Explorer C:\ - may not work with win7
ECHO 2 - Device Manager
ECHO 3 - Event Viewer
ECHO 4 - Services
ECHO 5 - Computer Management
ECHO 6 - REGEDIT
ECHO 7 - Command prompt
ECHO 8 - Local Users and Groups
echo 9 - launch task manager
ECHO a - Control Panel - may not work with win7
Echo b - Add/Remove programs - may not work with win7
Echo 0 - Exit
echo.
SET /P OPT=Please make a selection, and press enter:
if %OPT%==1 GOTO OPTION1
if %OPT%==2 GOTO OPTION2
if %OPT%==3 GOTO OPTION3
if %OPT%==4 GOTO OPTION4
if %OPT%==5 GOTO OPTION5
if %OPT%==6 GOTO OPTION6
if %OPT%==7 GOTO OPTION7
if %OPT%==8 GOTO OPTION8
if %OPT%==9 GOTO OPTION9
if %OPT%==a GOTO OPTIONa
if %OPT%==b GOTO OPTIONb
GOTO exit
:OPTION1
ECHO Executing Explorer C: window
echo.
runas /user:%auser%@DOMAINNAME "explorer.exe /separate"
GOTO:mymenu
:OPTION2
ECHO Executing Device Manager
echo.
runas /user:%auser%@DOMAINNAME "cmd /c Start /B devmgmt.msc"
GOTO:mymenu
:OPTION3
ECHO Executing Event Viewer
echo.
runas /user:%auser%@DOMAINNAME "cmd /c Start /B eventvwr.msc"
GOTO:mymenu
:OPTION4
ECHO Executing Services
echo.
runas /user:%auser%@DOMAINNAME "cmd /c Start /B services.msc"
GOTO:mymenu
:OPTION5
ECHO Executing Computer Management
echo.
runas /user:%auser%@DOMAINNAME "cmd /c Start /B compmgmt.msc"
GOTO:mymenu
:OPTION6
ECHO Executing regedit
echo.
runas /user:%auser%@DOMAINNAME "cmd /c Start /B regedit"
GOTO:mymenu
:OPTION7
ECHO Executing command prompt
echo.
runas /user:%auser%@DOMAINNAME "cmd /c Start /B cmd"
GOTO:mymenu
:OPTION8
ECHO Executing Local Users and Groups
echo.
runas /user:%auser%@DOMAINNAME "cmd /c Start /B lusrmgr.msc"
:OPTION9
ECHO Executing task manager
echo.
runas /user:%auser%@DOMAINNAME "cmd /c Start /B taskmgr.exe"
:OPTIONa
ECHO Executing control panel
echo.
runas /user:%auser%@DOMAINNAME "cmd /c Start /B control.exe"
:OPTIONb
ECHO Executing add/remove programs
echo.
runas /user:%auser%@DOMAINNAME "cmd /c Start /B rundll32.exe shell32.dll,Control_RunDLL appwiz.cpl"
GOTO:mymenu
GOTO EXIT
:EXIT

You guys I appreciate the feedback but please read my entire post and help if related, this is getting a bit frustrating.
a. I am not developing a powershell solution or "how do I launch them via command prompt" that is well known. The goal is to create an easy to use "run as helper" script for those that are not as savvy or do not have the commands memorized.
Even so many of your suggestions do not work because the user logged in does not have admin rights and the commands are blocked because of this restriction.
b. This is for the batch file in question, NOT "how do I launch command prompt as an admin"
c. Again, several options work, several do not (network connections and programs and features do not) must likely due to same limitations as explorer.exe or UAC
d. this is not "how do I launch the utilities by command line" it is "how do I launch them as the admin WHEN the current user does not have admin rights". The entire script works on a pc if you have admin rights because its launching
it instead AS the current user, in that case the current user has admin rights therefore it doesnt reproduce the issue.
e. running by control.exe using the app name or with cpl does not resolve the issue.
f. I did not post that command prompt is having issues launching, I wrote a couple times that the options in my script do work such as command prompt. Even if you launch command prompt you cannot launch programs and features or network connections with your
admin account with or without an additional runas command.

Warning 10.4.3 upgrade delete System & Users Squirrelmail config files.

Just installed the 10.4.3 upgrade.
After the upgrade was done I noticed WebMail settings was back to default.
So I had to set everything up again.
But what makes me angry is all the users preferences has been reset aswell.
I haven't read anything about this before I upgraded.
Makes me angry!

Thanks for bringing this up... I'll keep a close eye on my upgrades....
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Jeff

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D:\1.jpg
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Oracle instance

I have installed Oracle 8i on Linux 6.0. The database craetion
with DB Config Assistant also went of well. After that when I
try to start oracle using 'dbstart' or 'oracle' it just returns
to the linux prompt without any messages or errors. At this
stage when I use dbassist, it can't find any oracle instance
running.
Pls help with possible solutions.
Thanks
rajeev
null

I am at the same point in the install, but I am having problems
creating a database. Are you sure that your database creation
was successful? I got the error "ORA-01012: not logged on" when
trying to run the first dbassist script.
Rajeev (guest) wrote:
: I have installed Oracle 8i on Linux 6.0. The database craetion
: with DB Config Assistant also went of well. After that when I
: try to start oracle using 'dbstart' or 'oracle' it just
returns
: to the linux prompt without any messages or errors. At this
: stage when I use dbassist, it can't find any oracle instance
: running.
: Pls help with possible solutions.
: Thanks
: rajeev
null

WARNING:Oracle instance running on a system with low open file

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