Loosing memory in jms ??

Hi,
          Here are the details:
          OS: RHEL 4
          JVM: BEA WebLogic JRockit(TM) 1.4.2_08 JVM R24.5.0-61 Version ari-49095-20050826-1856-linux-ia32 from BEA Systems, Inc.
          WLS: 8.1.4 (Clustered, 1 Admin, 2 Managed)
          JMS: 1 JMS Servers on each of the Managed Servers with File Based Backing Store.
          Processing Details:
          Messages are posted to an Input Distributed Queue.
          Application managed Threads (AMT) act as synchronous consumers for the Dist. Queue.
          AMT?s dispatch messages to Stateless Session Bean (SSB) for processing.
          SSB uses Entity Beans for persisting message details.
          SSB sends an output message (per input message) to Distributed Topic(s).
          Both Output and Input Messages are persistent.
          What we are seeing is a continuous loss of memory(heap) in this processing. Profiling has shown none of the application objects lingering around. However we see a lot of weblogic.jms.backend.MessageReference, weblogic.jms.common.Counter, weblogic.jms.common.JMSMessageId, weblogic.jms.store.StoreEntry, weblogic.jms.common.MessageTime, weblogic.jms.common.ObjectMessageImpl, weblogic.jms.store.FileIOHeap$Chunk object instances.
          These don't go away after gc etc.
          Any idea what could be causing this ?
          Thanx,

Hi Tom,
          I see around 900K instances of weblogic.jms.backend.BEMessageReference (which looks like a LinkedList node).
          I see references to this from weblogic.jms.backend.BEMessageList.
          weblogic.jms.backend.BEMessageList is referenced by several weblogic.jms.backend.BE* types.
          It looks like weblogic.jms.backend.BEMessageReference is a skeleton which points to messsages sent to the JMS Queue (and Topic ??).
          (pagedState = 3 if that helps).
          So even though there are no un-consumed/un-processed messages why do we have these skeletons.
          I will see if I can have a reproducer.
          I got this problem in 8.1.6 as well.

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Hi,
My VI calls a function in a dll in a loop for a long period of time.
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I don't see anything either. But can you maybe post how the dll function is declared in it's header file (with all the macro definitions if any are used in the function prototype) as well as a screenshot of the NI prototype found in the "Call library function" node.
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How can i detect "Memory leak" with large LabVIEW projects.

Hi,
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Regards
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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.
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Hello,
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MSI K8N Neo2 Platinum has some SERIOUS vdimm issues

I did this post to other forum as well and I can be sure I'm not the only one with this problem and this has effect only if you are overclocking your system. I really hope some of the guys from MSI reads this post and if does not we need to notice them about this problem.
The link to other forum can be founded here
Problem #1
When you select (from BIOS) Cell Menu -> DRAM Configuration -> RAS to CAS (Trcd) and change the value to "2" it seems like it forces voltage to 2,7V, no matter what you select your Memory Voltage from BIOS (use multimeter if you don't believe).
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I was just tweaking my system up and I tried desperately achieve higher clock speed to my CPU, tried kinda everything out I could, more Vcore, more Vagp/Vchip, more vdimm, looser memory timings, dividers, all this without result.
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This was rock stable:
CPU: 2520MHz (252x10 / 1,55V)
RAM: 210MHz (3-3-3-5 / 2,65V)
VAGP: 1,5V
And this was not stable:
CPU: 2530MHz (253x10 / 1,6V)
RAM: 210,83 (3-3-3-5 / 2,65V)
VAGP: 1,5V
And now comes the funny part. After like 20th visit to BIOS I increased my VDIMM to 2,7V and this wasn't stable neither, it was like 10 minutes and Prime failed. Okey, so AGAIN, back to BIOS and I ACCIDENTALY decreased my VDIMM to 2,6V and... it was stable, I ran prime like 6 hours and 59 mins and it was all ok. After that I was like ":censored: I did?" I just decreased my VDIMM and now I'm able to do higher overclock. My system is now running 2550MHz (255x10) with 1,6V
So my stable system now looks like this:
CPU: 2550MHz (255x10 / 1,6V)
RAM: 212,5MHz (3-3-3-5 / 2,6V)
VAGP: 1,5V
Can none of you guys give me some info what the h--- is this?!

Quote
Originally posted by Zebbo
Quote
Originally posted by RollerCam540
Okay, let's try this again: I'm not a hostile guy and I didn't intend to offend your intelligence with my first post. I know you're thinking, why did I post the first post then, if I didn't intend to offend you? Well I'll tell you why:L
I'm truly sorry, I sometimes get nasty with these things. The "New member" under my name don't mean that I'm new to whole overclocking scene so that's why I don't need thus' Basic Overclocking Tips . And if I did hurt your feelings somehow, I'm sorry, I truly are. This was not what I planned this to be, I was just looking people with same experiences like I do.
Quote
Originally posted by RollerCam540
You are blaming the motherboard for something that I feel you cannot blame the motherboard for. Why do I say this?...
Well, I understand you feel way like that, but I've tried everything else and only thing I can come up to is motherboard. Like the CPU example you gave me, I can ignore it easily right here; The only thing this memory integrated controller does is data transfering, and as far as I know the motherboard handles the power circulation for memory, not the CPU.
Quote
Originally posted by RollerCam540
Yes, the fact that VDIMM goes up without your consent is wierd, that would qualify as an issue. I'm assuming since your a smart guy, you have the latest BIOS and/or you've researched/tested all BIOS' to determine which works fastest/best with your configuration.
I assume you referred with this to an Trcd issue. And I have nothing to say to that, you can test it out if you want and be sure to get multimeter so you can be 150% sure about it. I've also tried 1.36, 1,37, 1.4 official, 1.41, 1.51 and 1.5X bioses and they all give me same problem. Trcd 2 forces your voltage to 2,7V, no matter what choose from BIOS.
Quote
Originally posted by RollerCam540
For every guy you claim has trouble with their OCZ memory, there's a whole list of guys who're successfully using that memory in the A64 nvidia forum. Does this still mean it's a motherboard problem?
No, I don't have OCZ brand memory. I have Infineon by myself, so this far this has nothing to do with OCZ.
Example; I know alot of people who are using Kingston with this board and it's running all fine, I also know people who are running same set of Kingston as these peoples whos PC works great but still they are facing random memory problems. Same thing goes for OCZ too.
Quote
Originally posted by RollerCam540
Look, I would be upset if I couldn't go higher than 210mhz FSB but I wouldn't be blaming the motherboard if I didn't know it was the motherboard?
I always do my research well and I'm not blaming anything 'til I'm sure of what is causing my problem. But in this case, I'm that 150% sure it is motherboard. (And by the way, my mobo does 340 FSB Prime & 3D Stable so that's not an issue)
Quote
Originally posted by RollerCam540
I would hate to see you buy another motherboard only to find out the limiting factor was your CPU.
Don't be, cause I actually could do that to proof I'm right here and the issue is mobo
Quote
Originally posted by RollerCam540
Have you tried running your computer 1:1? Do you get any memtest/goldmem errors with it 1:1?
This was kind of stupid question (sorry :D), you can't run 1:1 divider with memory stick which has example PC2700 SPD information (you can do that with A64 Tweaker but no use if you're planning to do memtest). According to Asus report this is caused by A64's integrated memory controller.
So let say this one more time, the voltage of your memory has nothing to do with A64's integrated memory controller, your motherboard handles this. That's why I know this is motherboard related issue, not CPU, memory, PSU, or anyone else I didn't mentioned.
I guess you got some of the answer you wanted to hear, but if you got any xtra questions, feel free to ask. Maybe the best way is to contact me via Messenger.
I got to tell you that the A64s have a lot more to do with the memory than the boards do. The cpu really has to be matched to the memory and not all 3500+ cpus will run a certain type memory the same. I have tried several diffrent boards and several diffrent types of memory and it seems to me the cpu has more to do with not only the memory timings they can handle but the speed as well. Also cpu temps can make a diffrence here as well. Remeber the controllers are in the cpu. I would also say that the older 3500+ did not have as good of controllers.

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Lets say I have a stateless session bean that fetches data from my database. The point of the bean is to just do large SQL searches and funnel data back to the client. The prolem I have is that I am somehow fighting memory leaks. Despite having checked the code a number of times, the memory usage on my appserver continues to climb no matter what I do. I have theorized that the problem might be in the way Im using ma DataFetchBean (DFB).
When I start the client, he obtains a user session. This is a stateful session bean that he uses for almost all communication with the server. Then I call "getDataFetchBean" in the user session which calls DataFetchBeanHome.create(). Then the client holds onto the returned reference, using it for the live of his connection. As he disconnects, he calls remove on the bean.
Question is this:
1) Is it better for me to call create() prior to each call to the stateless session bean ?
2) Do you have any theories on why im loosing memory with this setup?
TIA
-- Rob

1. But I thought you were using a 'stateful session bean'?
2. For stateless session beans, there is no direct link between a remote reference and an instance of the bean. It is safe to hang on to the remote reference as long as you would like, of course it may go stale if the server dies. You will also find that the create() method does not actually contact the server, so doing it each usage costs very little. So, either way you should be fine.
3. As for memory leaks, make sure that you are closing all statements, result sets, etc. promptly. These are commonly the problem. Also, use hprof or some other profile tool to determine what types of data you are allocating and (with better tools) what types of data you may be holding on to references to.
Chuck

Monitoring weblogic server with sitescope

hi friends
can u any body tel me about how to monitor weblogic srever instance, jdbc pool , memory usage,jms server,threads ..?
is it better to use sitescope from mercury...?
i don know how to configure weblogic 8.1 sp6 with sitescope 8.0
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Edited by thayubali at 12/04/2007 3:05 AM
Edited by thayubali at 12/04/2007 3:11 AM

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E72 - Calendar not syncing via USB data cable (Out...

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Syncing the E72-2 Calendar to Outlook over USB Data cable returned synchronization errors.
HISTORY:
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Overview:
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- Run PC Suite Cleaner from Nokia
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0b. Exit PC Suite. Ensure it is not still running in the Taskbar.
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4b. After any extra Sync profiles are gone, the phone will default back to 'PC Suite.' Ensure the PIM data you wish to sync (Calendar, etc.) is selected with a red X.
4c. It does not seem to matter what you select for Data Bearer - I am using Bluetooth and that's working even though the target PC does not have it.
4d. 'Allow sync requests' should be set to 'Automatically accept'
4e. For 'Synchronization type' select the value that works for you. ('To phone only')
5. Run the Sync application in PC Suite.
5b. Ensure the phone has not automatically locked itself.
5c. Click the 'Sync' button in the PC Sync app.
5d. You should see Connecting....Waiting....Reading.....etc. while the content is syncing.
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Hope this helps someone out there. Note that this is mostly from memory, so if I inadvertently skipped any steps or if anything needs further clarification, please respond to this thread to help future readers.

Herve55 I can confirm that the DC-6 (remember to buy the the one with USB-micro connection) works.
However the only reason for me wanting to use the supplied USB to USB-micro cable in the car (with 3rd party cigarette adapter) was to first, get rid of that annoying spiral cord and second to have the data cable with me at all times.
Sad to say that I´eve by now definitely tried all possible solutions for the data cable "CA-101" without any luck.
My N97 witch I was very satisfied with at start started to burn battery,reboot,loose memory, become sluggish and then after 8 months of aggravation i sent it on a flyer in the wall.
I have now after 15 years changed brand.
Conclusively the guys at Nokia seems to carry to many models for any possibility of making further great phones! in other words they´v gone sloppy.

Stability: Mac vs. Windows

I'd always heard that Macs were more stable than Windows but I have now used my MBP for 16 months and I would have to say that it has crashed more times than my old Dell PC did in 5 years. I am a semi demanding user and run 4-5 programs at a time but nothing super demanding like video editing. My Mac (now running Leopard) crashes at least a few time every week. Is there something wrong with my Mac or is this par for the course? Are there some sort of utilities that I should run every day/week/month to make it more stable? Should I not be updating my programs with Software Update? I love the user interface but I really wish that my Mac was as rock solid reliable as I was led to believe it would be.

I'm not sure what you mean by "the grey screen."
When the screen fades and a message pops up in several languages that tells you to restart the computer, that is a kernel panic
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When you get a kernel panic, once you restart, you will get the option to report it to Apple. You can also review the report.
There is also a grey screen that you see on bootup where the system freezes and doesn't boot up.
What is a system hang? Do you mean the Finder? Can you use other apps, or nothing at all?
What are you doing when iTunes and Safari hang?
In Console, your can show the Log list, and then disclose the ~/Library/Logs and /Library/Logs. Each will have a CrashReporter category where you can see crashlogs for each app that has crashed.
Each log file will tell you what thread crashed and what it was trying to do at the time. Many times this is not decipherable to normal humans. However, if it is a recurring cause, we might be able to track it down. I've googled the exception listed and found answers on other boards.
BTW: ~/ means your user directory and / is the main hd directory (root). So there is a Library for each account, one for everybody, and there is a third inside /System/ that is pretty much Apple's exclusive Library.

Crashing mac

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The only programs running were firefox, stickies and calender. No problems with it since I bought it (i did add extra ram as soon as i got home).
And while i was typing, mac went to sleep and now won't turn on.
I'm asking mostly so I know how to explain this to apple phone peeps, i don't think i explained it that well 4 days ago, its been 1 week since this started.
I think I'm building karma or character or something...

got it back Wednesday. cause of crashes and finally no start up at all.....
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Apple tech asked if i had moved or dropped the iMac recently. no to both.
is it near a radiator? no, but it is next to an out side wall + window.
he said temperature change inside the iMac warps the memory stick clips and they slowly work open and gravity takes over. he said to check them every 6-8 months.

Loosing memory in jms ??

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