How can I avoid memory leak problem ?

I use Jdev 10.1.2 . I have a memory leak problem with ADF .
My application is very large . We have at least 30 application module , each application module contain many view object
and I have to support a lot of concurrent users .
as I know ADF stored data of view object in http session .
and http session live is quite long . when I use application for a while It raise Ouf of Memory error .
I am new for ADF.
I try to use clearCache() on view object when I don't use it any more .
and call resetState() when I don't use Application Module any more
I don't know much about behavior of clearCache() and resetState() .
I am not sure that It can avoid memory leak or not .
Do you have suggestion to avoid this problem ?

ADF does not store data in the HTTP session.
See Chapter 28 "Application Module State Management" in the ADF Developer's Guide for Forms/4GL Developers on the ADF Learning Center at http://download-uk.oracle.com/docs/html/B25947_01/toc.htm for more information.
See Chapter 29 "Understanding Application Module Pooling" to learn how you can tune the pooling parameters to control how many modules are used and how many modules "hang around" for what periods of time.

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How can i detect "Memory leak" with large LabVIEW projects.

Hi,
I have a huge LabVIEW application that runs out of memory after running continuously for some time. I am not able to find out the VI that is hogging up memory. Is there any tool that dynamically detects the VI that is leaking memory.
Or, is there a tool or a way to identify the critical areas which can be potential culprits that is leaking memory.
Regards
Bharath

Bdev wrote:
Thanks Dennis.
I think Desktop Execution toolkit should solve the problem.
Wayne Wrote
Have you tried Tools»Profile»Performance and Memory ? http://zone.ni.com/reference/en-XX/help/371361F-01/lvdialog/profile/
But this will just give me the amount of memory used by the VIs and not the amount of memory that is not getting released.
And where is the problem about that? Just try to find what VIs keep increasing in memory size. That are the culprits. If you have real memory leaks, meaning there is memory that is not managed by LabVIEW directly but for instance by a DLL somewhere and that DLL looses references to memory, so it goes really lost, then the only way to find that is by successively exclude functionality in your application until you can find the culprit.
There is no other simple way to find out about who is loosing memory references than by doing debugging by exclusion until the problem disappears. The only way to speed this up, which quite often works for me is doing an educated guess, about what components are most likely to do this misbehaviour.
Not knowing anything about your application and if you are talking about memory hogs (fairly easily identifiable by the mentioned Performance and Memory monitor) or actual memory leaks, it is hard to tell how to go about it. Memory hogs are usually the first thing I suspect escpecially with software I inherit somehow from people from whom I'm not sure they know all the ins and outs of LabVIEW programming.
If a leak seems likely the first culprit usually are custom DLLs (yes even DLLs I have written myself), then NI DLLs such as DAQmx, etc. and last there come leaks in LabVIEW itself. This last category is very seldom but it has happened to me. However before going to scream about LabVIEW having a memory leak you really, really should make sure you have very intensivly researched all the other possibilities. The chance that you run into a memory leak in LabVIEW, while not impossible, is so small compared to the other ways of causing either a memory hog or running into a leak in an external component to LabVIEW, that in 99.9% of the cases where someone screams about a LabVIEW memory leak, he is simply wrong.
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

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It's up to date. Anything else?

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How do I report a major memory leak problem with Firefox 3.6.10 in WinXP?

After I installed Firefox 3.6.9 on a WinXP desktop, I occasionally had minor memory leak problems, reflected by getting "out of virtual memory" messages. I upgraded to 3.6.10 when notified that it was available and that it supposedly fixed stability problems. Ever since then, whenever I use Firefox, it starts out quick as a flash, but very rapidly slows down to a crawl, and has twice brought my system to a halt. IE does not cause this, nor any other program I use, but the execution speed of all programs slows as badly as Firefox. If I knew where to get older versions, I would back up to 3.6.9 or earlier. The situation now prevents me from using Firefox much at all.

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Memory Leak Problem at Adobe LiveCycle Server 9.0

Hi All,
We want to upgrade our system to 9.0. During the performance test we have found memory Leak problem at ALS 9.0. I explain the detailed problematic issue below. Is there any body who has any suggest?
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public static bool GeneratePdf(Document document, byte[] pdfTemplate)
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Our System Configuration:
Expiry date: Never Version: 9.0.0.0,
GM Patch Version: SP2
Service Pack Version: unknown
ADOBE® LIVECYCLE® PDF Generator ES2
9.0.0.0
SP2
ADOBE® LIVECYCLE® Reader Extensions ES2
9.0.0.0
SP2
ADOBE® LIVECYCLE® Output ES2
9.0.0.0
SP2
We changed some configuration which is suggested by Adobe. But this change does not solve our problem.
Changed Configurations via ADMINUI
Memory Leak Problem which is viewed via wily tool:

Hi Mahir,
Can you attach the results of this performance test where we can see how GibsonMemoryTracking class is causing the memory leak issue.
Also do you see any stackTrace in the LiveCycle server logs related to memory / heap when you run this performance test ?
Thanks,
Simer

How to define the memory leak in stability test

Hi
Usually, we run our system with 70% CPU load for 72 hours for stability test (on solaris 10), because some plugin of our system is using mtmalloc, and we use prstat to monitor the memory of each plugin. But because of the complex memory usage of our application, we don't know when the application will use the Max memory, and because of the "mtmalloc", the memory showed by "prstat" will not released but continually increased.
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kevin wrote:
Thank you for the input and all the info.
isn't java heap the same as memory allocated to the java process in my weblogic
starup script ?The heap is sized by the -Xmx and -Xms parameters you pass on the java
command-line. The permanent generation is separate.
>
let me also download jprobe and try to run it and see what it gives me.
I'd start by running with -verbose:gc. I'd want to know whether you're
running out of heap or permgen space.
-- Rob
kevin
Rob Woollen <[email protected]> wrote:
Unfortunately memory leaks are not fun to track down even with tools.
I'd first suggest determining whether you're running out of space in
the
permanent area (where classes are loaded), or you've exhausted the java
help space.
I'd start by adding -verbose:gc. Look at the gc messages right before
you hit the OutOfMemoryError. If there's plenty of space left, I'd
suspect you're running out of perm space. Search these newsgroups and
the web for MaxPermSize, and you should see plenty of info.
If you're running out of java heap, tools like jprobe and OptimizeIt
are
helpful. If you can tell me a little more about your application and
how you're testing it, I can offer some more tips.
-- Rob
kevin wrote:
Iam new to JAVA and weblogic. I have an application that runs out ofmemory time
and again.
please let me know how to pin point this problem and moreover, howto interpret
or understand that there is a problem. I have downloaded JPROFILE tool,but it
is very confusing to understand what is goin on in this tool.
If somebody can let me know how to interpret and understand the memoryleak, that
will be great !!!
thank you.

How Can I increase memory used by director?

Hi
I have a tool, written in director, that imports all
imagefiles from a
folder and its subfolders into director cast
It worked since years without any problem
But now I have following problem - if the amount of files is
big enough,
director is out of memory, can not create any new member more
I do it like this
repeat with i=1 to cFileList
cFile=cFileList
mem = new(#image, myCast)
mem.importFileInto(cFile, [#trimWhiteSpace:FALSE,
#remapImageToStage:FALSE])
mem.name=cFile
end repeat
At some moment command
mem = new(#image, myCast)
fails, it can happen on 500-th file in the list, or an 570-th
or on some
other point. So the problem is not in some definite file, but
in memory. How
can I avoid this problem? Can I purge the memory, used by the
program till
that moment or is there any other way do to it?
Any help will be appreciated

Look up save castlib. put this in your loop and and maybe try
i mod 10 so it
only saves every 10 times. This should pull the images from
ram to disk, and
sort of purge the memory for you.
Timm
"Jorg Mann" <[email protected]> wrote in message
news:emof0k$cqh$[email protected]..
> Hi
>
> I have a tool, written in director, that imports all
imagefiles from a
> folder and its subfolders into director cast
> It worked since years without any problem
> But now I have following problem - if the amount of
files is big enough,
> director is out of memory, can not create any new member
more
>
> I do it like this
>
> repeat with i=1 to cFileList
> cFile=cFileList
> mem = new(#image, myCast)
> mem.importFileInto(cFile, [#trimWhiteSpace:FALSE,
> #remapImageToStage:FALSE])
> mem.name=cFile
> end repeat
>
> At some moment command
> mem = new(#image, myCast)
> fails, it can happen on 500-th file in the list, or an
570-th or on some
> other point. So the problem is not in some definite
file, but in memory.
> How
> can I avoid this problem? Can I purge the memory, used
by the program till
> that moment or is there any other way do to it?
>
> Any help will be appreciated
>
>

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Memory leak problem while passing Object to stored procedure from C++ code

Hi,
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just to correct my previous reply , adding delete statement
Hi,
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commit;
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int main()
int x = 0;
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const string sqlStmt("BEGIN testProc(:1) END;");
Statement * pStmt = pConn->createStatement(sqlStmt);
while(1)
TEST_OBJECT* pObj = new TEST_OBJECT();
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pStmt->setObject(1,pObj);
pStmt->executeUpdate();
pConn->commit();
delete pObj;
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Choose one of the Calenders on ONE of the computers OR the MobileMe as the Master / correct account.
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VideoReady(null);
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Hmm. It's in connection with Dropbox. Så apparantly you can only use one of the two at the same time if you want the programs integrated in Finder.

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Hi,
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Divya,
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Say thanks by clicking the Kudos thumb up in the post.
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---- card=pci-can/2---
how can I avoid bit stuff?
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thanks.
Work hard and enjoy life.
Love CVI and Labview!
Certified Labview Developer

Hi 侠客
The Series2 error/arb capture register indicates where the last error happened. In this case, the bit stuffing rules (not more then five consecutive bits of the same state) where violated. Typical causes are:
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