Regarding OC4J Standalone application -- "Out of Memory"

Hi all,
am installed the OC4J Standalone Application in windowns platform.......
I am facing some problem.it's link "Out of Memory". my system RAM size is 2GB.
we also increase JVM size in Server.xml file and also in command prompt. But again it is showing "Out Of Memory" and also we need to increase the OC4J file.
Can anybody please help me to resolve this issue.
Thanks in advance

Can you post the actual exception you are seeing -- you may be running into the PermGen issue, which is different from the common heapsize issue.
The JVM heapsize is not set in server.xml -- for standalone, its supplied on the command line where you start OC4J.
For example:
$>java -Xmx512m -Xms512m -jar oc4j.jar
-steve-

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I just want to state first I have searched everywhere and for every phrase I can think of, and while I have found a couple hits as to the cause, nothing has fixed this issue...
Background:
I work for a rather large media company who owns a mixture of online and print publications. We have been using InDesign 2.0.2 since it's release, and I have been one of the main persons responsible for it's usage in our workflow for the past 4 years. There have been a number of informal discussions, and even a formal discussion or two, about migrating the templates we use to InDesign CS3 which we also have licenses and installs for. However, that migration project keeps getting pushed aside for more important projects. So please keep in mind that upgrading, for us, is not an option in order to resolve this issue at this time.
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There are two main products that we offer our child companies - One product for the companies themselves to list vehicles for their clients (in this product their clients are car dealerships), and another product for a private party (e.g., Joe Blow internet user) to list their cars for sell. Both applications run a fairly similar process in that they hand off data gathered from the websites to a custom built application. That application can be considered a parent application, and it then distributes work to its children processes which run on several different servers. Four of those servers run our InDesign processes.
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In the past we've seen the issue I am about to describe on our virtual machines only, and on only one machine at a time. Each time we have corrected the issue by simply re-deploying that virtual machine and the InDesign application. However, now it's spread over to our physical boxes too, and currently happening on all four machines at this point in time.
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As stated earlier, we run a parent/child setup on various servers where the parent hands off work to it's children processes whom are connected in a client/server model via a TCP connection. These children perform a single function - to process data dumped from the websites ultimately into an XML format readable by InDesign. There are other steps and XML outputs, but this is the only one that matters for this discussion.
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One of the issues with the virtual machines that has seemed to have caused this, and was believed to be the issue until recently, was that the paging file would become corrupt. Thus rebuilding the VM was the only way to resolve. However, we have checked and double checked and the paging files on these servers are currently ok.
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These hits include information such as possible font corruption and deleting saved settings/defaults files. We have downloaded and used Microsoft's font validator on the fonts, and each have passed. We have also tried deleting the saved settings and defaults files numerious times, as well as deleting the font cache files so that InDesign will re-create them.
The paging files were also re-sized, turned off, moved to another local disk, etc. without any impact.
As this is the first time we've seen this impact multiple machines at the same time, and especially since its happening on both physical machines and virtual machines, we are trying to think of things which are common to these 4 servers. However, the only thing they really share are the mounted network shares. To get around this we've also tried opening our INDT's locally after copying them off the network, but the issue remains the same.
Another thing I've read is that the INDT itself may be corrupted, and to simply re-save the file. As I have a copy of InDesign locally to build these INDT's, this is also something I've tried but with no luck. The files don't seem to be corrupted. The same file which causes InDesign to crash on these four servers load perfectly fine on my local machine.
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We would appreciate any assistance you can provide, and thank you for reading this.

Peter,
Thank you for the reply. In regards to...
"First, are you running InDesign Server, or trying to use a standalone ID
install as a server which is totally unsupported and probably not
allowed under the EULA? Nor is Windows Server a supported OS for
non-server versions of ID, so you're pretty much on your own as far as
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InDesign is setup, and launched, like any normal application on any other OS. We have a special user setup which runs the client process of our client/server model in the foreground, and it is that client process that then launches InDesign. This user is always logged in as a result.
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Re-Building from scratch is possible, however, this has happened with brand new templates as well. Again, this issue when it appears seems completely random. It chooses both new and old files alike, and those files appear to be just fine. It's just this time, for some reason, all four machines are doing it which has never happened before. Right now there are probably a few hundred templates which currently throw this error immediately upon loading (and all of the ones I've tried on my local desktop work just fine), and around the same amount that are exhibiting odd behavior with their output.
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This is actually something I hadn't thought of or tried. I will re-save the EPS files as PDF's and give it ago with one, however, there are a couple things with that as well. One is that the Out of Memory error pops up on these machines as soon as I open the blank template. There are no graphics imported by default. So really it's just a plain document of whatever size, with a few boxes and text labels. Also, because we work in print and the fact these two applications have been used for so long, most of the artwork our child companies have provided us over the years are in this EPS format. There are a few thousand of them, and converting them all will take more time than it's worth for my company. They would not approve of my dedicating time to do that. New artwork we receive has been mostly in PDF as of late which does help in that regard, however.

Whether our application caused the memory leak

whether have the command to find out whether our application caused the memory leak !
We are using Jdev10g + JHeadstart(Release 9.0.5.1, BC4J + Struts + JSP) to build our enterprise application,
but when the application running some days in our Application Server(RedHat AMD64, with 8GB RAM), the memory consumed was growth seriously in production environment (one OC4J instance will caused almost 2G memory ulilization after running 2 days) that is caused us to restart the instance each day ! we doubt and worry
about maybe our application suffer the memory leak problem, so we want to know have the command to find out whether our application caused the memory leak
issue and which program is the major murderer for memory.

Ting,
Unfortunately there is no 'command' that will show you the location of a memory leak. First I would scrutinizing your code for any obvious 'leaks'. Then, you should obtain some statistics about the usage of your system. One important aspect is how long a HttpSession usually lives. If you have thousands of users that stay online the entire day and never 'time out', and if you have users on the system 24 hours a day, then the sheer number of HttpSessions might be a problem.
JHeadstart 9.0.x tends to have rather 'heavy' session objects. This can easily be solved by adding some actions to clear up DataObjects and DataObjectSets of previous 'Groups' when entering a new Group. A good place would be between the 'DynamicActionRouter' and the 'ActionRouters'. Just before entering the 'EmployeeActionRouter', you could remove all DataObjects and DataObjectSets that might be left on the Session by actions of the other ActionRouters.
Also it would be interesting to see if the garbage collector can do its thing when the system is less busy. For instance, if your application has a smaller load during the weekend, what is the memory usage on Sunday at midnight compared to, say, Friday at noon. Has the memory load dropped consistently with the decreased number of online users, or does too much memory stay allocated? If so, then there's more going on than just HttpSession objects.
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Peter Ebell
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hi,
we are using oracle 10g application server for our application. we have 20 different modules deployed on the server. for some time it was worked fine.we set all the perameters and fine tuned the server also.now we are getting the problem out of memory. here with i am giving server log of a particular module.please do the needful.
07/06/27 15:52:21 Published an event: C_150.1.25.2.121f1d.10da0d28851.-8000#ias_mid.app2.dvatonline.com#757269856#D#FOA#default_island&'app2.dvatonline.com&'HTTP:app2.dvatonline.com#12524&'RMI:app2.dvatonline.com#12424&'JMS:app2.dvatonline.com#12624
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07/06/27 15:53:59 Internal server error
java.lang.OutOfMemoryError
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Hi,
To add memory to a specific OC4J container:
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3. Click on the Administration tab
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Martin

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Hello everyone,
Recently, I am planning to design a web application. It will be used by all middle school teachers in a region to make examination papers and it must contain the following main functions.
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A.Using JSF.
B.Using JavaScript and plain JSP[b] without JSF.
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2)I can not find a way to meet the third demand right now. I am eager to know your suggestion.
3)Using JSF, I think, can�ft allow 1,000 teachers to do their own papers at the same time. Because in this scenario, suppose each questionnaire having 60 questions and 4 answers per question, there will be approximately 300,000 HtmlInput objects (1,000X60X(4+1)) creating on the server side. The server must run out of memory undoubtedly. To make things better, we can use a custom component which can be rendered as a whole question including its all optional answers. That is to say, a new custom component on the server side stands for a whole question on the client side. Even so, about 60,000(1,000X60) this type of custom components will be created progressively and dynamically, plus other UISelectOne and UICommand objects, it also can�ft afford for most servers. Do I have to use JavaScript to avoid occupying the server's memory in this way? If so, I have to go back and use JavaScript and plain JSP without JSF.
Thank you in advance!
Best Regards, Ailsa
2007/5/4

Thank you for your quick response, BalusC. I really appreciate your answer.
Yes, you are right. If I manually code the same amount of those components in the JSF pages instead of generating them dynamically, the server will still run out of memory. That is to say, JSF pages might not accommodate a great deal of concurrent visiting. If I upgrade the server to just allow 1,000 teachers making their own test papers at the same time, but when over 2,000 students take the same questionnaire simultaneously, the server will need another upgrading. So I have to do what you have told me, using JS+DOM instead of upgrading the server endlessly.
Best Regards, Ailsa

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