EJB3 long running task handling

Dear all,
Please help me on this,
We developed application using struts2 ejb3webservice.runing on jboss5.
This is a hotel reservation system. User make a request to get the hotel listing that is available, ejb3 Stateful get the connection to the web service and retrieve the hotels and process with the pricing then send back to the struts to display it to user. This happens only once for a search. The problem here is the EJB processing takes lots of time if it is more hotels available.
So I am expecting to implement a solution such as, if the first 10 hotels found return it to user and display while other hotels are processing background In the EJB. Then I can update those results with the user while he/her running over pagination.
Is this correct solution? If so how can I implement such a thing using EJB? any suggestion please?
Thanks
Emil

I am not a struts expert but I think that if you want a background processing you should use a Message Driven Bean.
When you receive the client request in your Session Bean, you send a message to the MDB and then continue. While the MDB is processing the result it can send partial data back to the Session Bean.
Hope it helps.

Similar Messages

Long Running Task ...

I have a requirement where a user kicks off a long running task ( usually 2
to 5 minutes). I want to show a 'In Progress' message while the task is
procesing. The long running process needs to be passed an ArrayList. To
achieve this , I use a ServerSessionPool and a QueueListener.
In the servlet I assign a unique ID to the task , send a JMS message ( with
the serialized ArrayList) on the queue. The servlet returns to the
user saying 'In progress' message . When the user hits refresh , I want to
know if the message has been consumed ( or the process is over ) and
I need get the 'processed' ArrayList back in the servlet. How do I achieve
this ?
Thanks in advance
~ J

instead of asking the user to hit refresh, you can have the browser
automatically refresh the page every X seconds by putting in a header
parameter.
I forgot the actual parameter, but this is pure HTML so look it up in that
spec
Filip
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"Cameron Purdy" <[email protected]> wrote in message
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http://dima.dhs.org/misc/LongRunningTask.jsp
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"John Doe" <[email protected]> wrote in message
news:[email protected]..
I have a requirement where a user kicks off a long running task
usually
2
to 5 minutes). I want to show a 'In Progress' message while the task is
procesing. The long running process needs to be passed an ArrayList. To
achieve this , I use a ServerSessionPool and a QueueListener.
In the servlet I assign a unique ID to the task , send a JMS message (with
the serialized ArrayList) on the queue. The servlet returns to the
user saying 'In progress' message . When the user hits refresh , I want
to
know if the message has been consumed ( or the process is over ) and
I need get the 'processed' ArrayList back in the servlet. How do Iachieve
this ?
Thanks in advance
~ J

Long running task - what do you show?

There are a lot of discussions about long running tasks. But what do you show in the GUI while these tasks are running? The obvious choice is the standard hour-glass cursor, or a JProgressBar. I'm sure though that there must be other creative alternatives, like a Java2D animation for example.
Would people like to share what they show during long running tasks?

I have both Fusion and Parallels on all my machines. For Windows7, I have found that
the most recent version of Parallels is much faster and efficient than Fusion. With
XP, either one seems just fine. Also, if Linux is a future consideration, Fusion seems
to be the better bet. Parallels has some USB issues when running Linux.
I have tried Virtual Box, but for my uses, hardware and firmware engineering, it has
been problematic.
Since you mentioned Autocad, I would not recommend VirtualBox. Either of Fusion
or Parallels should serve you well. However, graphics performance does seem a
bit snappier with Parallels than with Fusion.

NiDAQ 6008 -- Long running task stability

I have a small C program using nidaqmxbase, based on the example code provided.
This runs with a usb connected 6008 on a Red Hat Linux machine. The task is simple, read the analog voltage (differential, reference source 2.5v range) from one channel at 1000hz in blocks of 50 samples. The results are placed into network messages to send to another program for analysis.
This program works fine, but has a long run-time stability issue when left running for more than about 24 hours continuously (and, for my application I need to capture in realtime 24/7 indefinitly). The symptom observed is that the 6008 stops returning data -- and "lsdaq" shows that the device is no longer seen by the system. Sometimes the green LED stops blinking as well. Has the DAQ crashed? Did some counter overflow and cause the driver to malfunction? I am able to restore function only by physically disconnecting and re-connecting the 6008.
Thank you
Andy.

Hi aws-
It sounds like the problem you are seeing could be related to bus powering or resource conflicts on your system. The fact that the failure results in total loss of connectivity with your device certainly seems to indicate a hardware problem.
You said your code is based on the example code; please verify if an unmodified shipping example fails similarly. If so, please let us know which program fails and I will attempt to replicate the issue here. Do you see this problem on multiple computers and/or with multiple USB-6008 devices?
Thanks-
Tom W
National Instruments

How to delay a long running tasks start until display is updated?

I am having a problem in that a progress bar I want to use to show progress of a long running background process is not showing up for a long time (up to 10 seconds) after the long running process is started. This is in an AIR application and the background process is an external native process, so once it is launched the UI thread is free to run, but the launch of the process can take time.
Below is the current state of the relevant code.
In addition to the current format I have also tried using the CREATION_COMPLETE, EXIT_FRAME and RENDER events with the same results.
If I up the value in setTimeout to 500ms the progress bar displays quickly, but I would prefer to not delay the launch of the background process for no reason.
If I comment out the loadPorject call the progress bar is displayed instantly.
Any help is appreciated.
private function continueLoad(evt:Event):void
     // We are about to start some potentially long running process
     CursorManager.setBusyCursor();
     curPopup = new SyncProgress();
     curPopup.addEventListener(Event.ENTER_FRAME, popupLoadedHandler);
     PopUpManager.addPopUp(curPopup, parentView, true);
     PopUpManager.centerPopUp(curPopup);
     curPopup.stage.invalidate();
private function popupLoadedHandler(event:Event):void
     curPopup.removeEventListener(Event.ENTER_FRAME, popupLoadedHandler);
     setTimeout(function():void{syncManager.loadProject(mainViewModel.selectedUserItem.id,proj ectFile.nativePath,overwrite);},0);

DBMS_SCHEDULER is very powerful and can be a bit unwieldy. I tend to use DBMS_SCHEDULER for jobs which are purely 'in the database' i.e. not specifically APEX-related - in addition, I find it's better for stuff that needs to be run regularly without human intervention (some sort of refresh process, daily cleanup etc).
If you are intending to run this process from APEX as a pseudo "on demand" process (i.e. generated by a user request) and have quite simple requirements (e.g. there's no dependencies on other jobs), it might be worth checking out the apex scheduling API - namely the package APEX_PLSQL_JOB:
http://download.oracle.com/docs/cd/E14373_01/apirefs.32/e13369/apex_plsql_job.htm#BGBCJIJI
It generates a unique job number which you can use to reference its progress - plus it's much simpler to use.
p.s. using DBMS_SCHEDULER, yes the job name has to be unique but you can generate one by either using a sequence or data not likely to be repeated, like the current timestamp.

SQL Developer Locking up/Unable to Cancel long Running tasks

I have had the same problem with a number of versions of SQL Developer (and version 3.2.09). It occurs when trying to cancel a long-running PL-SQL Function or procedure that has been started by 'Run' in SQL Developer.
Select Terminate in Run Manager does not stop the job. Nor does trying to exit SQLDeveloper; it asks whether I want to kill the job; then doesn't kill it and doesn't exit either.
Trying to save modifications to anything the process depends on results in SQL Developer locking for ~20 minutes.
I have to resort to getting a DBA to manually kill the process at the server.
Is there any possiblity of a workaround or a way of making the PL/SQL not lock so it can be terminated please?
Thanks

I have had the same problem with a number of versions of SQL Developer (and version 3.2.09). It occurs when trying to cancel a long-running PL-SQL Function or procedure that has been started by 'Run' in SQL Developer.
Select Terminate in Run Manager does not stop the job. Nor does trying to exit SQLDeveloper; it asks whether I want to kill the job; then doesn't kill it and doesn't exit either.
Trying to save modifications to anything the process depends on results in SQL Developer locking for ~20 minutes.
I have to resort to getting a DBA to manually kill the process at the server.
Is there any possiblity of a workaround or a way of making the PL/SQL not lock so it can be terminated please?
Thanks

Webkit timeout kills long running tasks

Hi There
We have just been forced to refactor/recode a significant
portion of one of our AIR based RIA's due to an arbitrary decision
made by the Webkit team to restrict all XML HTTP requests via a
hard coded, hidden timeout of 60 seconds. This decision not only
affects AIR but also affects Safari and other browsers based upon
Webkit.
Our application performs complex analytic queries which may
run to a few minutes. Whilst long synchronous requests are not
generally a good idea for web based solutions, we believe that RIA
intranet applications are a completely different ball game and
should not be subject to arbitrary constraints such as these with
no flexibility or warning. We would not see this behaviour in Java
/ C# or other such application languages, so why are we seeing this
in Adobe AIR?
Our MD has understandably questioned the suitability of Adobe
AIR for future developments of enterprise RIA's, and we are all
naturally concerned about other "features" being added or removed
to the Adobe AIR functionality, even indirectly and whether in fact
we can rely upon Adobe to monitor the stability of their runtime.
We don't believe it is acceptable for us to tell our customers that
it was the fault of a component nested within multiple layers of
the runtime outside of our control and believe that it is equally
unacceptable for Adobe to stand by and claim the same.
We are excited about the prospects of investing in Adobe AIR
for delivering rapid RIAs to our customers, but are we to expect
similar show stoppers to arise over the coming months or even
years, and can we trust the Adobe runtime as an "In production"
solution going forward.
Mark Robertshaw
Director
Oxford Information Labs
http://www.oxil.co.uk

Mark,
Thanks for bringing this to our attention. We, as I'm sure
you realize, aren't claiming that this sort of thing is ok. And we
do work hard to maintain the stability of the runtime. However, it
can be difficult to know a priori everything that we need to keep
an eye on. That's one of the reasons we have forums like this one
and we very much appreciate this kind of feedback.
As for this particular issue, I'll just point out that you
might consider taking advantage of the flash.net.* APIs to manage
your network request, at least as a temporary workaround.
regards,
Oliver Goldman | Adobe AIR Engineering

Handle long-running EDT tasks (f.i. TreeModel searching)

Note: this is a cross-post from SO
http://stackoverflow.com/questions/9378232/handle-long-running-edt-tasks-f-i-treemodel-searching
copied below, input highly appreciated :-)
Cheers
Jeanette
Trigger is a recently re-detected SwingX issue (https://java.net/jira/browse/SWINGX-1233): support deep - that is under collapsed nodes as opposed to visible nodes only, which is the current behaviour - node searching.
"Nichts leichter als das" with all my current exposure to SwingWorker: walk the TreeModel in the background thread and update the ui in process, like shown in a crude snippet below. Fest's EDT checker is happy enough, but then it only checks on repaint (which is nicely happening on the EDT here)
Only ... strictly speaking, that background thread must be the EDT as it is accessing (by reading) the model. So, the questions are:
- how to implement the search thread-correctly?
- or can we live with that risk (heavily documented, of course)
One possibility for a special case solution would be to have a second (cloned or otherwise "same"-made) model for searching and then find the corresponding matches in the "real" model. That doesn't play overly nicely with a general searching support, as that can't know anything about any particular model, that is can't create a clone even if it wanted. Plus it would have to apply all the view sorting/filtering (in future) ...
// a crude worker (match hard-coded and directly coupled to the ui)
public static class SearchWorker extends SwingWorker<Void, File> {
 private Enumeration enumer;
 private JXList list;
 private JXTree tree;
 public SearchWorker(Enumeration enumer, JXList list, JXTree tree) {
 this.enumer = enumer;
 this.list = list;
 this.tree = tree;
 @Override
 protected Void doInBackground() throws Exception {
 int count = 0;
 while (enumer.hasMoreElements()) {
 count++;
 File file = (File) enumer.nextElement();
 if (match(file)) {
 publish(file);
 if (count > 100){
 count = 0;
 Thread.sleep(50);
 return null;
 @Override
 protected void process(List<File> chunks) {
 for (File file : chunks) {
 ((DefaultListModel) list.getModel()).addElement(file);
 TreePath path = createPathToRoot(file);
 tree.addSelectionPath(path);
 tree.scrollPathToVisible(path);
 private TreePath createPathToRoot(File file) {
 boolean result = false;
 List<File> path = new LinkedList<File>();
 while(!result && file != null) {
 result = file.equals(tree.getModel().getRoot());
 path.add(0, file);
 file = file.getParentFile();
 return new TreePath(path.toArray());
 private boolean match(File file) {
 return file.getName().startsWith("c");
// its usage in terms of SwingX test support
public void interactiveDeepSearch() {
 final FileSystemModel files = new FileSystemModel(new File("."));
 final JXTree tree = new JXTree(files);
 tree.setCellRenderer(new DefaultTreeRenderer(IconValues.FILE_ICON, StringValues.FILE_NAME));
 final JXList list = new JXList(new DefaultListModel());
 list.setCellRenderer(new DefaultListRenderer(StringValues.FILE_NAME));
 list.setVisibleRowCount(20);
 JXFrame frame = wrapWithScrollingInFrame(tree, "search files");
 frame.add(new JScrollPane(list), BorderLayout.SOUTH);
 Action traverse = new AbstractAction("worker") {
 @Override
 public void actionPerformed(ActionEvent e) {
 setEnabled(false);
 Enumeration fileEnum = new PreorderModelEnumeration(files);
 SwingWorker worker = new SearchWorker(fileEnum, list, tree);
 PropertyChangeListener l = new PropertyChangeListener() {
 @Override
 public void propertyChange(PropertyChangeEvent evt) {
 if (evt.getNewValue() == SwingWorker.StateValue.DONE) {
 //T.imeOut("search end ");
 setEnabled(true);
 ((SwingWorker) evt.getSource()).removePropertyChangeListener(this);
 worker.addPropertyChangeListener(l);
 // T.imeOn("starting search ... ");
 worker.execute();
 addAction(frame, traverse);
 show(frame)
}

At the end of the day, it turned out that I asked the wrong question (or right question in a wrong context ;-): the "problem" arose by an assumed solution, the real task to solve is to support a hierarchical search algorithm (right now the AbstractSearchable is heavily skewed on linear search).
Once that will solved, the next question might be how much a framework can do to support concrete hierarchical searchables. Given the variety of custom implementations of TreeModels, that's most probably possible only for the most simple.
Some thoughts that came up in the discussions here and the other forums. In a concrete context, first measure if the traversal is slow: most in-memory models are lightning fast to traverse, nothing needs to be done except using the basic support.
Only if the traversal is the bottleneck (as f.i. in the FileSystemModel implementations of SwingX) additional work is needed:
- in a truly immutable and unmodifiable TreeModel we might get away with read-only access in a SwingWorker's background thread
- the unmodifiable precondition is violated in lazy loading/deleting scenarios
there might be a natural custom data structure which backs the model, which is effectively kind-of "detached" from the actual model which allows synchronization to that backing model (in both traversal and view model)
- pass the actual search back to the database
- use an wrapper on top of a given TreeModel which guarantees to access the underlying model on the EDT
- "fake" background searching: actually do so in small-enough blocks on the EDT (f.i. in a Timer) so that the user doesn't notice any delay
Whatever the technical option to a slow search, there's the same usability problem to solve: how to present the delay to the end user? And that's an entirely different story, probably even more context/requirement dependent :-)
Thanks for all the valuable input!
Jeanette

Need SSIS event handler for long running event

Hi,
I have a long running table load task that I would like to monitor using an event handler. I have tried the progress and information events but neither generates a message during the actual table load. Is there a way to invoke an
event during the SSIS data flow task when it 1%, 2% done?
thanks
oldmandba

Do you now how many rows the source table have ? You can run SELECT statement on the destination to find out how many data has been inserted.
Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
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Large scale of database and data cleansing
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How to get running Daqmx task handles

HI,
We are creating a TestStand module using CVI 8.5, in that module we have to close all the running Daqmx tasks, please provide help on how to get running Daqmx task handles. We could not find any API function which can return list of running Daqmx task handles so that we can close one by one.
Thanks in advance for the help

I just had a similar issue. Stumbled on this forum in the hopes of getting an answer and found no reply to the original message. I think this is what we are both looking for DAQmxGetSysTasks.
I havent used it yet. Still in the excited I found something stage.

How to Handle Long running alerts in process chain...Urgent!!!

Hi All,
I am trying to find ways for handling long running alerts in process chains.
I need to be sending out mails if the processes are running for longer than a threshold value.
I did check this post:
Re: email notification in process chain
Appreciate if anyone can forward the code from this post or suggest me other ways of handling these long running alerts.
My email id is [email protected]
Thanks and Regards
Pavana.

Hi Ravi,
Thanks for your reply. I do know that i will need a custom program.
I need to be sending out mails when there is a failure and also when process are running longer than a threshold.
Please do forward any code you have for such a custom program.
Expecting some help from the ever giving SDN forum.
Thanks and Regards
Pavana
Message was edited by:
pav ana

Handling long running processes in APEX

Hello Experts,
I need your help!
I would like to call a long running PL-Proc from an Apex-App. So I build a page for the parameters with the wizzard - all fine.
Pressing the button starts the pl-proc - thats also fine.
Problem: While the PL-Proc is running, there is no activity signaled in the browser. There is no way to see, that something is running in the background.
After the pl-proc is finished, the branch to an other site took place - so the "after process" action is working as desired.
I tried "javascript:html_Submit_Progress(this);" - but this is not a solution because there is only a very short time to reload the page itself. The PL-Proc need much more time.
Is there a way to show the user, that background action is running?
Any Ideas?
Thanks for your help!
Kind regards,
Frank

A few things to keep in mind. The animated gif solutions don't show a true progress bar indicator, it's just an animation on a loop. If the process takes too long, you will hit the session timeout value defined for Oracle HTTP Server.
Another thought is this. In the code that is the long running process, make calls to [dbms_application_info.set_session_longops|http://download.oracle.com/docs/cd/B28359_01/appdev.111/b28419/d_appinf.htm#i996999] that indicate the real progress in the code. Then have a page that queries v$session_longops and refreshes every x (say 5 seconds). That page could even have an animated gif on it to indicate there is still activity.
Tyler Muth
http://tylermuth.wordpress.com
[Applied Oracle Security: Developing Secure Database and Middleware Environments|http://www.amazon.com/gp/product/0071613706?ie=UTF8&tag=tylsblo-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=0071613706]

Does win8/8.1/10 kill long-running programs automatically as stated in specs? reasons why?

does win8/8.1/10 kill/end-task long-running programs automatically as stated in specs? how specifically does it detect a locked-up process?
has this been put into windows 7 at any time to make it similar to windows 8?
Please supply accurate answers. thank you.
My understanding the reason for this change was to handle locked-up programs.
I do have a number of long-running processes. some examples of mine and scenarios for other users:
simulations on a Workstation or HPC Server
doing a directory tree walk on a hard disk with >=1TB of data
reference articles I have found on the subject:
windows 7
http://windows.microsoft.com/en-us/windows/exit-program-not-responding#1TC=windows-7
windows 8
From some of what I understand, you can also get the "Program Not Responding" or similarly titled dialog box when:
bug in the source code of the program in question. for instance, while(1){} such as forever loops (win7)
similar program bug when declaring a function one way but defining it a different way and then calling it (mismatch in function signature) (win7)
similar to above with DLLs in using MSVCRT*.DLL or other
(?) can't remember for sure on this, but I think some badly formed calls or it was invalid values or data type mismatch to Win32 API can do this from buggy code. (win7)
for (x=0; x < 16777216; x++) {your code here...} in other words, large values for loop termination (win7)
this is a repost of http://answers.microsoft.com/en-us/windows/forum/windows_8-performance/does-win88110-kill-long-running-programs/d35c3c9e-c6f4-4bbf-846a-2041bf2167a0?tm=1427518759476
here due to a request to do so.

does win8/8.1/10 kill/end-task long-running programs automatically as stated in specs? how specifically does it detect a locked-up process?
has this been put into windows 7 at any time to make it similar to windows 8?
Please supply accurate answers. thank you.
My understanding the reason for this change was to handle locked-up programs.
Hi Jim,
First, I have to admit that I'm not fully understanding the question, If a program is not responding, it means the program is interacting more slowly than usual with Windows, typically could be a confliction of software or hardware resources between
two programs, lack of system resources, or a bug in the software or drivers. In that case, we can choose to wait or end the program. This design is similiar in Windows 7, Windows 8 and other OS.
For deeper analysis, system determines whether the system considers that a specified application is not responding using a "IsHungAppWindow function",
https://msdn.microsoft.com/en-us/library/ms633526.aspx
And this link also give some explanation: Preventing Hangs in Windows Applicationshttps://msdn.microsoft.com/en-us/library/windows/desktop/dd744765%28v=vs.85%29.aspx?f=255&MSPPError=-2147217396
While I'm not a developer, to better understand this, I recommend you contact members in the MSDN Forum:
https://social.msdn.microsoft.com/Forums/en-US/home
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

WIJ 20002 error on long running reports

When trying to run a long running report, an error message is received .
Quote:
*"The Web Intelligence Java Report Panel cannot connect to the server. Close
the report panel and try to connect again or see your BusinessObjects
administrator. (Error: WIJ 20002)"*
What happens next is you are advised to "close" (twice) and are then advised to close this window.
If you select Details on the first error message:
Server: https://test.i3access.iowa.gov:443/desktoplaunch/InfoView/CrystalEnterprise_Webi/cdzServlet?
java.lang.RuntimeException: java.io.IOException: Server returned HTTP response code: 502 for URL: https://test.i3access.iowa.gov:443/desktoplaunch/InfoView/CrystalEnterprise_Webi/cdzServlet
     at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
     at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
     at com.businessobjects.wp.cpi.CPIConnection.postRequest(CPIConnection.java:437)
     at com.businessobjects.wp.xml.XMLViaHttp.loadScript(XMLViaHttp.java:144)
     at com.businessobjects.wp.xml.XMLViaHttp.getPromptList(XMLViaHttp.java:1284)
     at com.businessobjects.wp.xml.XMLLoader.getPromptList(XMLLoader.java:279)
     at com.businessobjects.wp.om.OMQuery.loadPromptsAndContexts(OMQuery.java:359)
     at com.businessobjects.wp.om.OMQuery.getActiveContextCount(OMQuery.java:384)
     at com.businessobjects.wp.tc.query.TCQueryPropertie.buildQueryContextFromUI(TCQueryPropertie.java:496)
     at com.businessobjects.wp.tc.query.TCQueryTab.buildQueryContextFromUI(TCQueryTab.java:846)
     at com.businessobjects.wp.tc.query.TCQueryTab.modifyQueryProperties(TCQueryTab.java:638)
     at com.businessobjects.wp.tc.query.TCQueryTabManager.modifyQueryTabs(TCQueryTabManager.java:306)
     at com.businessobjects.wp.tc.query.TCQueryPanel.modifyQueryTabs(TCQueryPanel.java:310)
     at com.businessobjects.wp.tc.query.TCQueryPanel.load(TCQueryPanel.java:383)
     at com.businessobjects.wp.tc.TCMainPanel.switchToQueryPanel(TCMainPanel.java:563)
     at com.businessobjects.wp.tc.TCMainPanel.actionPerformed(TCMainPanel.java:506)
     at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
     at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
     at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
     at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
     at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
     at com.jidesoft.plaf.basic.BasicJideButtonListener.mouseReleased(Unknown Source)
     at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
     at java.awt.Component.processMouseEvent(Unknown Source)
     at javax.swing.JComponent.processMouseEvent(Unknown Source)
     at java.awt.Component.processEvent(Unknown Source)
     at java.awt.Container.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.run(Unknown Source)
     at com.businessobjects.wp.cpi.CPIConnection.postRequest(CPIConnection.java:441)
     at com.businessobjects.wp.xml.XMLViaHttp.loadScript(XMLViaHttp.java:144)
     at com.businessobjects.wp.xml.XMLViaHttp.getPromptList(XMLViaHttp.java:1284)
     at com.businessobjects.wp.xml.XMLLoader.getPromptList(XMLLoader.java:279)
     at com.businessobjects.wp.om.OMQuery.loadPromptsAndContexts(OMQuery.java:359)
     at com.businessobjects.wp.om.OMQuery.getActiveContextCount(OMQuery.java:384)
     at com.businessobjects.wp.tc.query.TCQueryPropertie.buildQueryContextFromUI(TCQueryPropertie.java:496)
     at com.businessobjects.wp.tc.query.TCQueryTab.buildQueryContextFromUI(TCQueryTab.java:846)
     at com.businessobjects.wp.tc.query.TCQueryTab.modifyQueryProperties(TCQueryTab.java:638)
     at com.businessobjects.wp.tc.query.TCQueryTabManager.modifyQueryTabs(TCQueryTabManager.java:306)
     at com.businessobjects.wp.tc.query.TCQueryPanel.modifyQueryTabs(TCQueryPanel.java:310)
     at com.businessobjects.wp.tc.query.TCQueryPanel.load(TCQueryPanel.java:383)
     at com.businessobjects.wp.tc.TCMainPanel.switchToQueryPanel(TCMainPanel.java:563)
     at com.businessobjects.wp.tc.TCMainPanel.actionPerformed(TCMainPanel.java:506)
     at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
     at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
     at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
     at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
     at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
     at com.jidesoft.plaf.basic.BasicJideButtonListener.mouseReleased(Unknown Source)
     at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
     at java.awt.Component.processMouseEvent(Unknown Source)
     at javax.swing.JComponent.processMouseEvent(Unknown Source)
     at java.awt.Component.processEvent(Unknown Source)
     at java.awt.Container.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.run(Unknown Source)
Please let me know what the solution is.

Matt,
A namesake of yours is my client for this issue.
Coming to the problem, the customer says there is proxy configured between HTTP server and WebSphere. This proxy server times out for long running reports. If the HTTPServer is bypassed, things work fine.
A colleague of mine opened a case with BOBJ. I can get you the case# if you need it. We got this reply:
From: Takano, Hitomi
Sent: Tuesday, November 04, 2008 10:26 AM
Hi Matt,
I was away for the last two days, so I couldn't reply to you sooner.
Extending the timeout setting from Webi and Infoview in BOXI R2 will not
make the long running reports work as your proxy setting at the lower
layer than BOXI just allows 5 minutes and after that the connection will
be cancelled by the proxy. I'm not sure why this setting was effective
for https only or timeout out after 2 min. This is out of scope of BOXI
R2 and your network admin would be the best person to handle. You were
getting 502 error in Java Report Panel. I googled with "502 error and
ProxyTimeout", and I got the some articles returned which say when
backend doesn't answer on requests(because it timed out), it returns to
a client an error 502.
I'll close this thread as the n/w admin at the client are working things out.
Thanks for your support.

Long running DBAdapter partnerlink activities (transactions)

Hello,
I try to use nonBlockingInvoke = true for long running DBAdapter partnerlink activities,
but i'm not succesfull.
In BPELConsole the activity seems to be running, but there is an entry
in Manual Recovery > Activity TAB and OraBPEL~OC4J_BPEL~default_island~1
log says:
<2006-02-10 09:32:05,130> <INFO> <test.collaxa.cube.ws> <AdapterFramework::Outbound> file:/ora/app/oracle/product/bpel/integration/orabpel
/domains/test/tmp/.bpel_ZalozeniObjednavky_1.2.jar/ZapisObjednavky.wsdl [ ZapisObjednavky_ptt::ZapisObjednavky(InputParameters) ] - Using
JCA Connection Pool - max size = <unbounded>
<2006-02-10 09:32:05,390> <ERROR> <test.collaxa.cube> <BaseCubeSessionBean::logError> Error while invoking bean "cube engine": Callback in
vocation failed.
An attempt to invoke the method "handleCallback" on the performer "bpel.p0.BPEL_BIN$$BPELC_BpInv0" failed. The reported exception is: "".
Please ensure that the signature of the method "handleCallback" is: ( IWorkItem, ICubeContext ).
<2006-02-10 09:32:05,406> <ERROR> <test.collaxa.cube.engine.dispatch> <BaseScheduledWorker::process> Failed to handle dispatch message ...
exception ORABPEL-05002
Message handle error.
An exception occurred while attempting to process the message "com.collaxa.cube.engine.dispatch.message.instance.CallbackInvokerMessage";
the exception is: Callback invocation failed.
An attempt to invoke the method "handleCallback" on the performer "bpel.p0.BPEL_BIN$$BPELC_BpInv0" failed. The reported exception is: "".
Please ensure that the signature of the method "handleCallback" is: ( IWorkItem, ICubeContext ).
Does anybody succeed with nonBlockingInvoke = true on DBAdapter partnerlink?
I use BPEL 10.1.2 patch02
Thank you
Karel

Hi Jon,
 
 
You can set the maxConnections which represents the Maximum number of connections in the pool in oc4j-ra.xml.
Please refer to the section Oracle Application Server Adapter for Databases in Oracle® BPEL Process Manager Developer's Guide
for more information.
 
 
Aruna

EJB3 long running task handling

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