Running multiple instances from same oracle home

Hi Gurus,
I am preparing for OCA 11g examination. I had a question about running multiple instances from same oracle home. While reading the book I came across a statement about database control which says "If there are several database instances running off the same Oracle home, then each will have its own Database Control instance".
Now I assume that this statement implies multiple instances accessing the same physical database (which as per my knowledge can happen only in case of a RAC).
I am not able to understand how exactly can you have multiple database instances in a single oracle home. I have installed Oracle 11g on my computer whose oracle home is +"D:\oracle\product\10.2.0\db_1"+; now this directory houses all the binaries (executables and folders like admin,bin, etc) for the oracle instance that I have installed (the instance name is ocp1). Now if I am to install or create another Oracle Instance (say ocp2) in the same home, wont there be a conflict of binaries of the two instances in the same home ?
Basically,it makes sense if db_1 folder is further split into multiple folders, one for each instance (for example, one for ocp1 & one for ocp2); each of these folders will then contain the binary files, libraries,etc for its own instance; but, this is not the case, here db_1 houses all the binaries directly under it ...
The other question which stems from the statement I mentioned above is that if having multiple instances running from same oracle home accessing the same physical database, can this arrangement be called RAC at all; or does RAC dictate that you cannot have multiple instances that are accessing the same database have to be installed on physically separate machines and so you cannot have two RAC instances (accessing same physical database) installed on the same computer ??
I hope my questions are not too much confusing ... !!
Cheers,
Sudripta

Hello,
"If there are several database instances running off the same Oracle home, then each will have its own Database Control instance".This is true, and also means each instance will have its separate database (i.e. dbf files etc.) & separate DB Control. Usually in this case you create several instances on the same node.
Now I assume that this statement implies multiple instances accessing the same physical database (which as per my knowledge can happen only in case of a RAC).You are correct about RAC where several instances (usually running on separate nodes) access the RAC.
More info:
1 Oracle Home - 1 Database - 1 SID is possible.
1 Oracle Home - Many Databases - Many SID is possible.
1 Oracle HOme - 1 Database - Multiple SID is possible and this is called RAC.

Similar Messages

How to Patch Multiple Instances on same oracle home

Hi All
I Have 4 Instances running on server like below
DEVSTAG /opt/oracle/product/10.2.0
DEVUAT /opt/oracle/product/10.2.0
DEVREVT /opt/oracle/product/10.2.0
DEVREG /opt/oracle/product/11.2.0
i want to Apply the patch set 11.1.0.7.1 to DEVUAT & DEVREVT Instances , Can someone please help .. i dont want this patch set applied to DEVSTAG Instance .. how to exclude that Instance from getting patched ?
Thanks in advance .. hope my requirement is clear.

Which patch are you referring to ? The database patching tool (opatch) generally applies any database patch to an ORACLE_HOME. You will need to follow the instructions in the README of the patch. If you need to only patch one instance, then you will have to create a dedicated ORACLE_HOME for each database (i.e they will not share database executables). If you share ORACLE_HOME amongst multiple instances, then you will have to patch all of them simultaneously.
HTH
Srini

Multiple Instances on single oracle home

Hi,
If i have multiple instances in a single oracle home
How can i know which instance is running (up)
to which table i fire query to find instances status
how to start single instance out of multiple instances
Thanks,
Mustang

mustang4455 wrote:
Hi,
If i have multiple instances in a single oracle home
How can i know which instance is running (up)
to which table i fire query to find instances status
how to start single instance out of multiple instances
These questions show a certain lack of knowledge about Oracle - which immediately says that you also do not know what you are doing ito performance and scalability of a Oracle and that server platform by running multiple instances on it.
In most case, running multiple instances is the wrong thing to do. It degrades performance. It does not and cannot scale. It is an exception to the basic fundamentals of client-server. And not just for Oracle.
You need sound technical justification for running multiple instances on a server. What is yours?

Running multiple instances on same machine

I need to run multiple instances of BEA WLS on a unix machine. I need 4 separate instances (dev and test for two different departments) on one machine and two production instances on another machine. What is the best way to go about separating these (ex. an account or directory structure for each)?
Thanks,
Roger ---|-

Dev/Test:
Give each one its own domain name - i.e. a separate directory under config. This
works well.
Production:
Do the same, but to keep licensing costs down, I'd be inclined to run everything
on a single instance.
simon.
Roger Cornejo wrote:
I need to run multiple instances of BEA WLS on a unix machine. I need4 separate instances (dev and test for two different departments) on
one machine and two production instances on another machine. What is
the best way to go about separating these (ex. an account or directory
structure for each)?
Thanks,
Roger ---|-

Can't run multiple instances on same page!

Hi,
Since I got no response on the shadowbox forums after 2 weeks, I thought it's worth to post it here and hope someone can help me out.
Note: This is also related on non-joomla pages. I've tested it on plain html as well (by Dreamweaver) and get the same issue.
The following issue was posted by me on the shadowbox forums:
I was wondering if the following is possible.
I've tried almost everything where I can think of, but no luck.
Searched many forums and googled a lot, but without success.
I got feeling that I'm so close and missing some simple solution.
So I'm stuck here, I'm not able to figure it out.
This is what I want to achieve:
My website is running on Joomla 1.5. And I'm using a Shadowbox extension.
In an article I've put multiple SWF movies, like previews acting like buttons.
So when clicking on a SWF button/movie, Shadowbox opens and plays a related FLV movie.
To achieve this part I've followed the instructions at this site under FAQ > first paragraph.
So far so good...
Now the ugly thing is when putting multiple swf buttons on a single page, after clicking a random button Shadowbox always displays the same flv movie. I did some altering with ID's and such but had no luck.
Even try to alter with the Shadowbox options and variables, flashVars and such (at this site under Options and Usage) but that worked out for me.
The strange thing is when placing the buttons, let's say in an article belonging to a section and category and make the articles paginated, after clicking the swf button the related flv plays. Browsing to the next page and clicking the button, the related flv will play also. This is the way it should be. Unfortunately it doesn't work when multiple buttons are displayed on the frontpage or an single article regardless whether they belong to sections and categories or not.
Even when a single code is placed in a single article and display 2 or more articles containg a different swf and a different related flv link only the last added flv plays with every random swf button/movie.
This the code I'm using for each swf (actionscript behavior):
FIRST INSTANCE SWF=====================================
on (release) {
getURL("javascript:openShadowbox
('http://test.cquence-multimedia.nl/images/cqmm_test.flv','flv','title')");
SECOND INSTANCE SWF=====================================
on (release) {
getURL("javascript:openShadowbox
('http://test.cquence-multimedia.nl/images/WizardFinal_1.flv','flv','title')");
================================================
This is the code I'm using in the article (2 instances on a single page):
=======================================================

<script src="Scripts/swfobject_modified.js" type="text/javascript"></script>
<script src="Scripts/AC_RunActiveContent.js" type="text/javascript"></script>
<object id="FlashID" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="150" height="50" data="images/default_swf_button.swf">
<param name="movie" value="images/default_swf_button.swf" />
<param name="quality" value="high" />
<param name="wmode" value="opaque" />
<param name="swfversion" value="9.0.45.0" /> 
<param name="expressinstall" value="Scripts/expressInstall.swf" />  
<object width="150" height="50" data="images/default_swf_button.swf" type="application/x-shockwave-flash">

<param name="quality" value="high" />
<param name="wmode" value="opaque" />
<param name="swfversion" value="9.0.45.0" />
<param name="expressinstall" value="Scripts/expressInstall.swf" /> 
<div>
<h4>Content on this page requires a newer version of Adobe Flash Player.</h4>
<p><a href="http://www.adobe.com/go/getflashplayer"><img src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif" border="0" alt="Get Adobe Flash player" width="112" height="33" /></a></p>
</div>

</object>

</object>
</p>
<script type="text/javascript">
swfobject.registerObject("FlashID");
</script>
<script type="text/javascript">
function openShadowbox(content, player, title, width, height, options){
Shadowbox.open({
content:"http://test.cquence-multimedia.nl/images/cqmm_test.flv",
player:"flv",
title:"SHADOWBOX FLASHBUTTON TEST FLV",
width:"800px",
height:"600px",
</script>

<script src="Scripts/swfobject_modified.js" type="text/javascript"></script>
<script src="Scripts/AC_RunActiveContent.js" type="text/javascript"></script>
<object id="FlashID1" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="150" height="50" data="images/default_swf_button2.swf">
<param name="movie" value="images/default_swf_button2.swf" />
<param name="quality" value="high" />
<param name="wmode" value="opaque" />
<param name="swfversion" value="9.0.45.0" /> 
<param name="expressinstall" value="Scripts/expressInstall.swf" />  
<object width="150" height="50" data="images/default_swf_button2.swf" type="application/x-shockwave-flash">

<param name="quality" value="high" />
<param name="wmode" value="opaque" />
<param name="swfversion" value="9.0.45.0" />
<param name="expressinstall" value="Scripts/expressInstall.swf" /> 
<div>
<h4>Content on this page requires a newer version of Adobe Flash Player.</h4>
<a href="http://www.adobe.com/go/getflashplayer"><img src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif" border="0" alt="Get Adobe Flash player" width="112" height="33" /></a>
</div>

</object>

</object>
<script type="text/javascript">
swfobject.registerObject("FlashID1");
</script>
<script type="text/javascript">
function openShadowbox (content, player, title, width, height, options){
Shadowbox.open({
content:"http://test.cquence-multimedia.nl/images/WizardFinal_1.flv",
player:"flv",
title:"SHADOWBOX FLASHBUTTON TEST BRIAN",
width:"800px",
height:"600px",
</script>
=======================================================
This is the link to the page in question:
http://test.cquence-multimedia.nl/index.php?option=com_content&view=article&id=9&Itemid=13
Please, any suggestions would be great!
Thanks in advance.
Best Regards,
John.

Sorry...I still don't get it. What is it about Windows FUS that keeps iTunes from running running the process twice? It can run many other non-Apple windows apps in multiple user sessions (commercial apps, open source apps, audio/video apps, networked apps). I can even run two different virtual machines at the same time under two different user sessions.
Why can iTunesHelper.exe run twice but iTunes.exe cannot? Why can I run Safari at the same time? Quicktime Player runs fine under multiple user sessions.
Blaming it on Windows and/or FUS sounds like FUD. Can anyone give a valid technical reason? Semaphores? Mutexes? An admission (and explanation) that the Windows version is purposely crippled?

Running multiple instances of same servlet

I am trying to run multiple webapps off of the same weblogic5.1 instance.
          I have setup the webapps and they work individually, but I need one servlet
          to load at startup.
          I have only been able to do that by including it by name in
          weblogic.properties
          #webApp named
          weblogic.httpd.webApp.demand=d:/stat_forecast/
          #register servlet so it runs on startup
          weblogic.httpd.register.AppInitServlet=com.ai.servlets.AppInitServlet
          weblogic.httpd.initArgs.AppInitServlet=AppConfigFilename=d:/stat_forecast/pr
          operties/forecast.properties
          weblogic.system.startupClass.aiservlet=weblogic.servlet.utils.ServletStartup
          weblogic.system.startupArgs.aiservlet=servlet=AppInitServlet
          This works until I try to add another instance of AppInitServlet for a
          different webApp
          #webApp named
          weblogic.httpd.webApp.supply=d:/supply/
          #register servlet so it runs on startup
          weblogic.httpd.register.AppInitServletS=com.ai.servlets.AppInitServlet
          weblogic.httpd.initArgs.AppInitServletS=AppConfigFilename=d:/supply/supply.p
          roperties
          weblogic.system.startupClass.aiservletS=weblogic.servlet.utils.ServletStartu
          p
          weblogic.system.startupArgs.aiservletS=servlet=AppInitServletS
          The servlet does not run a second time.
          Is there a way to move the AppInitservlet to inside the webApp and maybe use
          the web.xml to start each one individually?
          Thank you for any insight
          John Norton
          Indent Inc
          John Norton
          Indent Inc.
          (Innovative decision technologies, inc.)
          [email protected]


Replying to myself to try and clarify.
          We are trying to run 2 or more webapps, each webapp tryes to call the
          servlet AppInitServlet.
          The servlet will not allow more than one instance to be in a context.
          In tomcat the servlet works to give a separate instance for each app.
          "JohnNorton" <[email protected]> wrote in message
          news:[email protected]...
          > I have sp8 on one version and that does work for the load on startup. One
          > problem solved, thank you.
          > Second part of same problem
          > In tomcat where we were developing, we could have multiple instances
          of
          > the AppInitservlet (for different Apps) and it kept them all separate.
          > In WL51 it starts the first correctly, but does not keep them
          separate,
          > so the second instance does not happen. It is designed so that
          multiple
          > calls do not instantiate (this would normally be within one instance of
          one
          > App).
          > I had thought that if the servlet was load-on-startup from the webApp
          > web.xml file that they would be separate. Any more ideas or clues?
          >
          > Thank you
          >
          > John Norton
          >
          > "Dimitri Rakitine" <[email protected]> wrote in message
          > news:[email protected]...
          > > Try it with the latest service pack - load-on-startup in web.xml was not
          > > supported until sp8 or so.
          > >
          > > JohnNorton <[email protected]> wrote:
          > > > I am trying to run multiple webapps off of the same weblogic5.1
          > instance.
          > > > I have setup the webapps and they work individually, but I need one
          > servlet
          > > > to load at startup.
          > > > I have only been able to do that by including it by name in
          > > > weblogic.properties
          > >
          > > > --------------
          > > > #webApp named
          > > > weblogic.httpd.webApp.demand=d:/stat_forecast/
          > >
          > > > #register servlet so it runs on startup
          > > > weblogic.httpd.register.AppInitServlet=com.ai.servlets.AppInitServlet
          > > >
          >
          weblogic.httpd.initArgs.AppInitServlet=AppConfigFilename=d:/stat_forecast/pr
          > > > operties/forecast.properties
          > > >
          >
          weblogic.system.startupClass.aiservlet=weblogic.servlet.utils.ServletStartup
          > > > weblogic.system.startupArgs.aiservlet=servlet=AppInitServlet
          > > > ---------------
          > > > This works until I try to add another instance of AppInitServlet for a
          > > > different webApp
          > > > #webApp named
          > > > weblogic.httpd.webApp.supply=d:/supply/
          > >
          > > > #register servlet so it runs on startup
          > > > weblogic.httpd.register.AppInitServletS=com.ai.servlets.AppInitServlet
          > > >
          >
          weblogic.httpd.initArgs.AppInitServletS=AppConfigFilename=d:/supply/supply.p
          > > > roperties
          > > >
          >
          weblogic.system.startupClass.aiservletS=weblogic.servlet.utils.ServletStartu
          > > > p
          > > > weblogic.system.startupArgs.aiservletS=servlet=AppInitServletS
          > >
          > >
          > > > The servlet does not run a second time.
          > > > Is there a way to move the AppInitservlet to inside the webApp and
          maybe
          > use
          > > > the web.xml to start each one individually?
          > > > Thank you for any insight
          > >
          > > > John Norton
          > > > Indent Inc
          > > > --
          > > > *************************************************
          > > > John Norton
          > > > Indent Inc.
          > > > (Innovative decision technologies, inc.)
          > > > [email protected]
          > >
          > > > *************************************************
          > >
          > >
          > >
          > >
          > > --
          > > Dimitri
          >
          >
          >

Multiple APEX instances sharing the same Oracle Home?

Can someone tell me if it is possible to have multiple APEX installations where the database instances are sharing the same Oracle Home? If so, how would this be set up?
So, if I have development and test running on the same home, I want a separate APEX instance for each. We can do this when different Oracle homes are used (separate httpd running) but not for the same home.
Thanks

Thanks - We have tried putting 2 dad entries in file, but not sure how you connect. You only specify a port number, so how does it connect that to a db???

Can we have Multiple Instance on same Node in Oracle 10g RAC

Hi All,
I am planning to implement the RAC in Oracle 10g.Before that i have one doubt regarding RAC.
My question is "Can we create multiple Instance on Same node(Server) ?"
is it possible.
Any ideas or thoughts would be apperciable.
Thanks in Advance.
Anwar

This is where it is important to keep the separation between 'database' and 'instance'.
A database is the set of files that contains the data (and the redo, control files, etc). A database does nothing by itself, other than take up lots of disk space.
An instance is theCPU cycles (running software) and the memory to control the database.
In Oracle RAC, you can have as many instances controlling one database [at the same time] as you want (within reason). Each instance must be able to access the disk(s) that contains the database.
These multiple instances can be on the same computer (effectively taking up a lot of server memory and CPU for nothing) or they can be on separate computers.
If they are on separate computers, the disk subsystems must be able to be shared across computers - this is occasionally done using operating system clusterware and is the main reason why clusterware is required at all. (This is also the toughest part of the pre-requisites in setting up a RAC and is very vendor dependent unless you use ASM.)
These instances need a communication connection to coordinate their work (usually a separate network card for each computer) so they do not corrupt the disk when they are trying to access the same file, and possibly the same block, at the same time.
In a RAC configuration, instances can be added, started, running, stopped and removed independent of each other (allowing a lot of high availability) or can be started and stopped as a group.
Each instance gets it's own SID, which is in no way any different than a non-RAC SID. It's just the name of a service that can be invoked. The neat thing is that the SID
a) helps the DBA keep things straight by lettiung us talk about 'instance A' (the Oracle software to be running over on computer A) vs 'instance B' when starting, stopping and managing;
b) helps the application by providing targets that can be listed in the TNSNAMES.ORA [against one service alias], which is used by ORacle Networking to provide automated load balance or failover (instance/SID a is not available, I guess I'll try the next in the list)
Hope that helps the concept level a bit.

Disallow running multiple instances of the same web start application..

on the client? I have an application that is launched on the client by clicking on the link to the JNLP file. The problem is that I don't want the application to launch twice if the user clicks the link twice. Is there a way to keep web start from running multiple instances of the same app?
I don't want to just disable the button after it is clicked because then the user won't be able to get back in if they need to.
Any help out there?
Thanks,
Melanie

The way I do this is to try connect to an obscure port number on the localhost at startup.
if this connection succeeds I assume the app is already running. otherwise the program continues and registers as a server at that port number.
I actually take this a little bit further by registering a web server at this port (I use the Brazil server), That way if the program finds an instance of itself running it can send a message to the web server and ask the program to do something (like start another window if,for instance you wanted to allow this but only within the same VM).

Running multiple instances of program at same time problems

I have a c++ program that uses BerkeleyDB 4.8.26 with transactions. Program works well, and I can run multiple instances of program and they cooperate on database very well. Problem arises when I run a small test program that runs 10 instances of the same program at same time.
Test program opens database with transactions, it does some database reads and writes and quits. This test is run in 10 instances of the same program at the same time. Some instances run and finish well, other instances end up with some of these errors:
unable to allocate memory for the lock table
PANIC: Cannot allocate memory
Error opening environment: DB_RUNRECOVERY: Fatal error, run database recovery
another with:
db_files/__db.001: No such file or directory
db_files: No such file or directory
Error opening environment: Invalid argument
others with this one:
Log file corrupt at LSN: [1][84474]
fileops: close db_files/log.0000000001
PANIC: Invalid argument
unable to join the environment
db_files: No such file or directory
Error opening environment: DB_RUNRECOVERY: Fatal error, run database recovery
I don't understand reason of this error, as I thought (and read) that BerkeleyDB should be able to handle multiple instances accessing database and is thread-safe.
I tried to run the test on both NFS and local disk drive with same results.
Is there anyone with ide what could be causing this problem ? My platform is x86_64 GNU/Linux 2.6.18-164.el5
Edited by: Miro Janosik on 21.9.2010 22:42

If there is someone who would like to look at this problem I'd like to show you program log files with verbose output turned on. There are 11 log files in the archive: http://bin.mypage.sk/FILES/log.rar
Log files that end up with lines like this one below mean that program finished running ok:
4000|0 4 20100922 07:07:24.094 20100922 07:07:24.094 FLOW_CMD
Here below is output from one of log files:
FilePersistentStorage::open() start
FilePersistentStorage::open() ReadDir
FilePersistentStorage::open() db_env_create
FilePersistentStorage::open() db_env_create ok
FilePersistentStorage::open() set cachesize
FilePersistentStorage::open() set_tx_max
FilePersistentStorage::open() set_timeout
FilePersistentStorage::open() set_lk_detect
FilePersistentStorage::open() exists homedir?
envp->open
FilePersistentStorage::open() envp->open
fileops: stat /var/tmp
fileops: open db_files/__db.rep.init
fileops: close db_files/__db.rep.init
fileops: open db_files/__db.001
fileops: close db_files/__db.001
fileops: open db_files/__db.001
fileops: mmap db_files/__db.001
fileops: close db_files/__db.001
unable to join the environment
fileops: directory list db_files
fileops: unlink db_files/__db.005
fileops: unlink db_files/__db.004
fileops: unlink db_files/__db.003
fileops: unlink db_files/__db.002
fileops: unlink db_files/__db.001
fileops: open db_files/__db.001
fileops: open db_files/__db.001
fileops: read db_files/log.0000000001: 12 bytes at offset 371
Finding last valid log LSN: file: 1 offset 371
fileops: close db_files/log.0000000001
fileops: open db_files/__db.005
fileops: seek db_files/__db.005 to 794624
fileops: write db_files/__db.005: 8192 bytes
fileops: mmap db_files/__db.005
fileops: close db_files/__db.005
fileops: open db_files/__db.006
fileops: seek db_files/__db.006 to 376832
fileops: write db_files/__db.006: 8192 bytes
fileops: mmap db_files/__db.006
fileops: close db_files/__db.006
fileops: open db_files/log.0000000001
fileops: read db_files/log.0000000001: 12 bytes at offset 335
fileops: read db_files/log.0000000001: 371 bytes at offset 0
fileops: directory list db_files
fileops: open db_files/log.0000000001
fileops: read db_files/log.0000000001: 28 bytes
fileops: close db_files/log.0000000001
Recovery starting from [1][243]
fileops: close db_files/log.0000000001
fileops: open db_files/log.0000000001
fileops: read db_files/log.0000000001: 28 bytes
fileops: write db_files/log.0000000001: 92 bytes at offset 371
fileops: flush db_files/log.0000000001
fileops: close db_files/log.0000000001
fileops: open db_files/log.0000000002
fileops: close db_files/log.0000000002
fileops: open db_files/log.00002
fileops: close db_files/log.00002
fileops: open db_files/log.0000000001
fileops: seek db_files/log.0000000001 to 463
fileops: write db_files/log.0000000001: 4096 bytes
fileops: write db_files/log.0000000001: 4096 bytes
fileops: write db_files/log.0000000001: 4096 bytes
fileops: write db_files/log.0000000001: 4096 bytes
fileops: write db_files/log.0000000001: 3633 bytes
fileops: close db_files/log.0000000001
Recovery complete at Wed Sep 22 07:07:23 2010
Maximum transaction ID 80000002 Recovery checkpoint [1][371]
FilePersistentStorage::open() ok
envp->lock_detect
FilePersistentStorage::open() lock_detect
rejected locks count: 0
db_create
dbp->open
fileops: stat db_files/test_aaps.db
fileops: stat db_files/test_aaps.db
fileops: stat db_files/__db.80000001.d9f23b56
fileops: open db_files/log.0000000001
fileops: read db_files/log.0000000001: 28 bytes
fileops: write db_files/log.0000000001: 67 bytes at offset 463
fileops: flush db_files/log.0000000001
fileops: open db_files/__db.80000001.d9f23b56
fileops: stat db_files/__db.80000001.d9f23b56
fileops: seek db_files/__db.80000001.d9f23b56 to 0
fileops: write db_files/__db.80000001.d9f23b56: 4096 bytes
fileops: seek db_files/__db.80000001.d9f23b56 to 4096
fileops: write db_files/__db.80000001.d9f23b56: 4096 bytes
fileops: flush db_files/__db.80000001.d9f23b56
fileops: close db_files/__db.80000001.d9f23b56
fileops: stat db_files/test_aaps.db
fileops: stat db_files/__db.80000001.d9f23b56
fileops: unlink db_files/__db.80000001.d9f23b56
fileops: open db_files/log.0000000001
fileops: read db_files/log.0000000001: 12 bytes at offset 463
DB_LOGC->get: LSN 1/463: invalid log record header
DB_TXN->abort: log undo failed for LSN: 1 463: Input/output error
fileops: close db_files/log.0000000001
PANIC: Input/output error
fileops: open db_files/log.0000000001
fileops: read db_files/log.0000000001: 12 bytes at offset 463
PANIC: fatal region error detected; run recovery
DB_LOGC->get: LSN: 1/463: read: DB_RUNRECOVERY: Fatal error, run database recovery
DB_TXN->abort: log undo failed for LSN: 1 463: DB_RUNRECOVERY: Fatal error, run database recovery
fileops: close db_files/log.0000000001
PANIC: DB_RUNRECOVERY: Fatal error, run database recovery
PANIC: DB_RUNRECOVERY: Fatal error, run database recovery
dbp->open end
dbp->close
PANIC: fatal region error detected; run recovery
envp->close
File handles still open at environment close
Open file handle: db_files/log.0000000001
fileops: close db_files/log.0000000001
PANIC: fatal region error detected; run recovery
Database 'db_files//test_aaps.db' open failed: DB_RUNRECOVERY: Fatal error, run database recoveryDatabase close failed: DB_RUNRECOVERY: Fatal error, run database recovery
environment close failed:

How can i run multiple instances of Photoshop EXE at the same time on windows 7

Alright. You may ask why do you need multiple ?
Assume that i have 10000 PSD files in 10 different folders
I have a script that just save as them as PNG
And these files are each 3000x3000 px
My computer has 8 cores and 1 photoshop exe is only using 1 cpu core
Also i have SSD raid system it has 750 mb read write per second
So right now i am wasting my time with running only 1 photoshop exe instead of at least 4

I'm not aware of a way to run multiple instances or different versions of photoshop at the same time on windows.
Assuming of course they are all installed on the same operating system.
On mac versions you can running two different versions of photoshop at the same time, but i don't think that's possible on windows where it
appears that only one version of photoshop can run at a time.

I want to run multiple instance of tomcat on same server-very Urgent

HI all,
I want to run multiple instance of tomcat on same server. I have created CATALINA_BASE directory and i put conf,logs,temp,webapps, and work directory. I have configured server.xml in different port. I have set the environment variables too. Though it didn't workout for me. Is there anything else i have to do for that. if so, Please assist me.
I did all according to the tomcat 4.1running.txt
Thanks in advance
Ram.

hi,
http://www.linuxjournal.com/article/8561
http://forum.java.sun.com/thread.jspa?threadID=515368&messageID=2458945Hit Google..
http://www.google.com/search?q=how+to++run+multiple+instance+of+tomcat+on+same+server&client=netscape-pp&rls=com.netscape:en-US

Can we install multiple oracle product in same oracle home

hi,
It would be appreciated if any one can answer below:
Is it possible to install multiple oracle product in same oracle home?
thanks

installing XE and enterprise edition in same oracle _home oracle 10g?

Separate 2 databases from one oracle home

Here's the situation:
"prod and test databases are sharing the same oracle home"
I want to create separate oracle home for these databases, any suggestions on how to proceed will be greatly appreciated.

Hi C,
Oracle Home means that it can have multiple Domains inside it and under each Domains you can have one Admin server and n-number of managed servers. For better understating her is the directory structure
Oracle Home
|
Domain-1= Admin Server , Manage Server-1, MS-2 ....... MS-n
Domain-2= Admin Server , Manage Server-1, MS-2 ....... MS-n
Domain-n = Admin Server , Manage Server-1, MS-2 ....... MS-n
Now you can deploy the your App-1 and App-2 under any Domain on different Managed servers or you can even deploy each application under different domains but to answerer your question
Ans-1 Yes, it possible to have multiple instance configured from one oracle home.
Ans-2 Yes, after you configured one instance, you can re-run again and add/remove components
Hope above information helped you
Regards,
Ravish Mody
Edited by: Ravish Mody on Oct 19, 2010 11:16 AM

Best design running multiple instances of desktop based java applications b

Hi,
I am not sure if this is the right forum...
Please suggest on what should be the best design for running 10 instances of same desktop based java applications (No Enterprise or Webcomponents) on different machines BUT still using the same database.
Summary:
a) Each application will do writes/updates to same database but will run from different locations.
b) These applications will reside at different locations (example country, city) but same domain, so it will use separate JVM.
c) How to tell application where it resides and what should be the best way to determine location automatically from the network? (we would like to avoid any property setting as update will require to change this file also), if database is good approach, what should be the best design.
d) Best way to handle transaction...
for example, if one component that writes to an Oracle table, then a downstream component reads the new insert from the table. In this case what should be the best practice in the code for transaction awareness, to avoid issues.
Thanks
Val

Oracle runs a transaction control model on a thread--each login. All other threads will not be able to see the data that is updated or inserted until a commit is done. The same thread can, however, see the updated or inserted information as soon as the update or insert takes place a transaction commit is not needed for that to happen and it is not an error--you must do a commit to make the changes to the data visible to other users and persistent. If you do not commit the changes they will rollback once your session is terminated.
If you turn autocommit on, then each update or insert will automatically commit and be available to all users, but each statement becomes a transaction and you loose the ability to rollback any changes.

Running multiple instances from same oracle home

Similar Messages

Maybe you are looking for