MDB gets Destroyed

Hi,
          I am using 9.2 with clustering environment. I am using UOO hence I am initialising my pooled beans with 5 beans.
          Due to exceptions in the transaction these beans are getting destroyed while new beans are not getting initialised by App.Server even though messages are pending on the queue. Some times the bean stops operating and one has to manual start resuming. How can we automate this operation?
          Is this expected behavior or I have to do certain configurations to achieve this?
          Thanks,
          Alan
          Edited by alan78 at 05/17/2007 7:17 AM

Hi Alan,
          You appear to have hit the stalling bug I mentioned previously. One possible work-around is to use a container managed transaction and force redelivery by rolling back the EJB transaction.
          (The "transaction.rollback()" isn't related to the stall, as its for the bean managed transaction and so is unrelated to the container state of your non-transactional MDB.)
          Tom
          PS. Just in case your unaware, there's a not all that uncommon problem with MDBs that use bean managed transactions (BMTs): They can yield unintended "non-ACID" results without careful design to handle the potential for message redelivery when the BMT for the first delivery committed. If performance is a consideration, container managed transactions can often yield much higher throughput than BMTs...

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JSP session getting destroyed when second user logs in

Hi,
I am facing a session related problem in a small login program in jsp. I am using three jsp pages, login.jsp (user logs in), page1.jsp (creates a session and stores username) and page2.jsp (accesses session).
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No jsp actually. Just a simple html form.
Page1.jsp:
String name=request.getParameter("Name");
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Page2.jsp:
session=request.getSession(false);
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String name=session.getAttribute("Name").toString();
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Regards
Kamal

Hi,
Thanks for reply, but I guess the problem is not clear. Let me explain..
A user logs in, he reaches first page (page1.jsp), here session is getting set. Then user goes to page2.jsp where application retrieves the information from session and uses it. It works all well.
When two (or more) user logs in.. First user logs in, he reaches page 1, session is set. But then another user logs in (different id) and a session is set for him as well. Now the problem here is that session for first user gets destroyed at this point, which is unexpected (two sessions should not conflict, on different machines).
Additionally, the problem does not happen necessarily at second login. eg. sometimes 4 users log in and when fifth one logs in, fourth gets logged out (session gets destroyed).
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I have the following scenario:
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Applet is getting destroy in frames

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How do you "hide" the frame?
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Does the sharedObject get destroyed when the browser is closed?

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hello cyber0897,
No sharedObjects are stored in a cookielike textfile on the clients harddrive, As far as I know there is not an option like with cookies to be destroyed after the browser closes.
The reset you wrote should be in another order:
var mySharedObject:SharedObject = SharedObject.getLocal....
//the above will never give null, because it is created when it doesnt exist.
//the if (object != null) is useless because of the above, in your post it will be always null, since it is not instantiated...
mySharedObject.clear();
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Usage:
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(the @ only works in flex 4)
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package
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PSD files get destroyed

Hi, I'm using Aperture 2.1.2 for only a few days now, and Photoshop CS4. When I bought Aperture, it said that it was able to handle PSD files. Now, here's my problem:
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geropf wrote:
Hi, I'm using Aperture 2.1.2 for only a few days now, and Photoshop CS4. When I bought Aperture, it said that it was able to handle PSD files. Now, here's my problem:
1. I drag (or import, no difference) a PSD file (made with Photoshop CS3) with all kinds of layers into a project.
2. Everything looks fine in Aperture.
3. I rightclick the image and use the "edit with" command, selecting Photoshop CS4.
Aperture never sends the original file to an external editor - instead, it makes flattened TIFF or PSD copy and sends that out instead.
4. The image is opened in Photoshop - and all layers are gone, and it's color inverted. As all the layers are gone (including the color correcting ones), I can't simply hit "invert colors".
I've no idea why the colours are inverted if it looks OK in Aperture, but you will lose all the layers automatically.
So I tried to rescue at least some important pictures and dragged them out of the Aperture window onto my desktop. They are not PSD files anymore, but JPEG files - at the exact same resolution and much smaller dimensions than the original PSD.
If you just drag an image out of the Aperture window all you'll get will be a 'Preview' - a JPEG copy of the file. To get the original file out try Export>Export Master...
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If you want to edit you original PSD in Photoshop, you'll need to use referenced Masters (read the fine manual, one of the Aperture books or do a search). You will then be able to right-click, choose 'Reveaql in Finder', open the file in Photoshop and edit it. After you save the file (not save as, but a regular save) you should see it's thumbnail in Aperture update.
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Dreamweaver FluidGrid code gets destroyed by BC editor.

I'm trying to move a website over to HTML5, so I created a new template in Dreamweaver New > Fluid Grid Layout
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None, You should not be having those when you go into editors.
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JOptionPane does not get destroyed

hi everyone,
i am using jdk1.4.1
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thanks in anticipation,
ranajit

I've just read the follow below. Maybe it might remotely concern your problem.
http://java.sun.com/j2se/1.4.2/changes.html:
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MDB gets cannot find recently created Entity Bean

I have a session bean that creates several entities beans, and puts a message onto
JMS queue. A MDB is configured to read the queue, and in onMessage(), it calls
findByPrimaryKey() for one of the newly created EntityBeans. However, the entity
bean cannot be found.
All of the beans in question are using container managed transactions, and all
have transaction required. The entity bean that I'm looking for is using optimistic
concurrency. I cannot change it to exclusive without redesigning a major part
of the system, which have solved a similar problem that I encounted earlier that
did not involve any message driven beans.
The only way that I got it to work is put in Thread.sleep(5000) right before calling
the finder. Does anyone know of any alternatives besides having the MDB sleep?

No, this will work fine with the existing server. If the publish is
part of the JTA transaction, then no one can consume the message until
the original JTA transaction has committed.
-- Rob
Rajesh Mirchandani wrote:
XA defines that a transaction's individual operations will either fail or
succeed atomically. XA can not, and does not define that a transaction's
individual operations occur exactly simultaneously.
The WL transaction monitor does not currently provide a way to serialize a
transactions commit operations on its component resource managers.
There is an enhancement filed for this, I guess. Follow up with BEA support.
Rob Woollen wrote:
Vina Wang wrote:
The JMS send is part of the transaction, sort of. The call is within
the session
bean transaction, but I'm not using transacted session for
JMSPulisher. Would
that fix the problem?Sadly this is a confusing aspect of JMS. You want a non-transacted
session because you want it to participate in the global transaction
that the EJB started. Also, make sure that you've enabled user
transactions on your connection factory.
There's more info here:
http://edocs.bea.com/wls/docs70/faq/jms.html#252635
Let us know if you're still having problems.
-- Rob
I know that the transaction hasn't been commited, but I was monitoring
database
via SQL call when I tried this. There was about 2 second delay on my
development
machine.
Rob Woollen wrote:
My guess is the MDB is receiving the message before your "create entity
bean" transaction has committed. Is the JMS send part of the "create
entity bean" transaction? It probably should be.
You can easily prove this by writing a few lines of JDBC to hit the
database and check for your primary key.
I would not recommend changing to exclusive or using the Thread.sleep.
-- Rob
Vina Wang wrote:
I have a session bean that creates several entities beans, and putsa
message onto
JMS queue. A MDB is configured to read the queue, and in onMessage(),
it calls
findByPrimaryKey() for one of the newly created EntityBeans. However,
the entity
bean cannot be found.
All of the beans in question are using container managed transactions,
and all
have transaction required. The entity bean that I'm looking for is
using optimistic
concurrency. I cannot change it to exclusive without redesigning a
major part
of the system, which have solved a similar problem that I encounted
earlier that
did not involve any message driven beans.
The only way that I got it to work is put in Thread.sleep(5000) right
before calling
the finder. Does anyone know of any alternatives besides having the
MDB sleep?
Rajesh Mirchandani
Developer Relations Engineer
BEA Support

IOS4 - Folders get destroyed as soon as you SYNC

Just upgraded my 3GS to iOS4 and created some folders to store various apps. All created lovely, and then I made the mistake of SYNCing to iTunes. Immediately all of the folders that I'd created were destroyed, putting all of the apps back over multiple screens again. So I disconnected from iTunes, and tried again... recreated all the folders, and re-SYNC to iTunes... exactly the same thing happened!
Great I can create folders, but as soon as I sync the iPhone, they're deleted!
What is the point of that Apple???
Message was edited by: FreakyBeanz
Message was edited by: FreakyBeanz

Sorry to be dense but I haven't figured out how to do the folders yet. Anyone want >to tell me the process since Apple didn't provide directions with the update?
There are lots of resources online, such as:
http://gizmodo.com/5568954/the-complete-guide-to-using-ios-4?utmsource=feedburner&utm_medium=feed&utmcampaign=Feed:gizmodo/full(Gizmodo)

Does the restore previous session call get destroyed too with the new forget button in firefox

I have checked under startup to restore previous session ... Can it still if I use the new forget button since it states all tabs are closed ... so that would be last session to my thinking Rick Carter

I think there is a serious risk that your session history will be cleared, too. However, I haven't tested it yet. If you want to preserve a copy of your session history files while you experiment, you can back them up as follows:
Open your current Firefox settings (AKA Firefox profile) folder using either
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* (menu bar) Help > Troubleshooting Information
* type or paste about:support in the address bar and press Enter
In the first table on the page, click the "Show Folder" button. This should launch a list of your settings files.
Look for a folder named '''sessionstore-backups''' and copy it in its entirely to a safe location such as your Documents folder.
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What to do if Ipod get destroyed or damaged and where can I take it for repairation?

Where can I take my ipod so it can be repaired?

Your local apple store. You will probably want to call and make an appointment first.

MDB Maximum concurrent beans for Weblogic on Linux

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if your MDB is using the default Execute Queue with 100 threads, the max instances of the mdb should be 51.
I am surprised that this should be different on Win and Linux.
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which version are you using ?
cheers,
Mihir

MDB gets Destroyed

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