Process using Webservice in Reader and Writer becomes slow while connecting processors

Hi,
I have a process that reads from a web service and writes to a web service. When I try to modify the code(after stopping the running process) by adding new processors or change the current connections, the connecting arrows take forever to connect and sometimes the director hangs for a long time. There is no issue in other processes where I read and write from staged data.
How to overcome this isue?
Appreciate the help!
Regards,
Ravi

Hi Nick,
Thanks for the advice. In the scenario where upgrade is not an option, is there any workaround to this issue?
What I've found is if I strip the next processor of all its connections, then it gets connected to the previous processor pretty quick.
EDQ hangs if the processor has other input/output connections and I try to connect it to another processor)
P1>---<P2>    <P3 ---------- P2 to P3 connects fast as P3 is standalone
P1>---<P2>    <P3>---<P4> ---------- In this case,  when I try to connect P2 to P3, it hangs forever.
I've a complex process and just for adding a few processors in between, I will not be able to connect the rest of the processors all over.
Regards,
Ravi

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         record = ( Employee ) input.readObject();
                   employeeList[count++]= record;
                   store.add(record);/////////ADDS record to Store
              store.displayAll();
              System.out.println("Count is " + store.getCount());
             // create array of Strings to display in GUI
             String values[] = {
                        String.valueOf(record.getName()),
                            String.valueOf(record.getGender()),
                        String.valueOf( record.getDateOfBirth()),
                        String.valueOf( record.getID()),
                             String.valueOf( record.getStartDate()),
                        String.valueOf( record.getSalary()),
                        String.valueOf( record.getAddress()),
                           String.valueOf( record.getNatInsNo()),
                        String.valueOf( record.getPhone())
    // i added all those bits above split onto one line to look neater
             // display record contents
             userInterface.setFieldValues( values );
          // display message when end-of-file reached
          catch ( EOFException endOfFileException ) {
             nextButton.setEnabled( false );
          nextRecordButton.setEnabled( true );
             JOptionPane.showMessageDialog( this, "No more records in file",
                "End of File", JOptionPane.ERROR_MESSAGE );
          // display error message if class is not found
          catch ( ClassNotFoundException classNotFoundException ) {
             JOptionPane.showMessageDialog( this, "Unable to create object",
                "Class Not Found", JOptionPane.ERROR_MESSAGE );
          // display error message if cannot read due to problem with file
          catch ( IOException ioException ) {
             JOptionPane.showMessageDialog( this,
                "Error during read from file",
                "Read Error", JOptionPane.ERROR_MESSAGE );
       } // end method readRecord
       private void getNextRecord()
               Employee record = employeeList[next++%count];//cycles throught accounts
          //create aray of string to display in GUI
          String values[] = {String.valueOf(record.getName()),
             String.valueOf(record.getGender()),
              String.valueOf( record.getStartDate() ), String.valueOf( record.getAddress()),
         String.valueOf( record.getNatInsNo()),
         String.valueOf( record.getPhone()),
             String.valueOf( record.getID() ),
               String.valueOf( record.getDateOfBirth() ),
         String.valueOf( record.getSalary() ) };
         //display record contents
         userInterface.setFieldValues(values);
         //display record content
    ///////////////////////////////////from read end
    private void SaveLocation()
          // display file dialog, so user can choose file to open
          JFileChooser fileChooser = new JFileChooser();
          fileChooser.setFileSelectionMode( JFileChooser.FILES_ONLY );
          int result = fileChooser.showSaveDialog( this );
          // if user clicked Cancel button on dialog, return
          if ( result == JFileChooser.CANCEL_OPTION )
             return;
          File fileName = fileChooser.getSelectedFile(); // get selected file
          // display error if invalid
          if ( fileName == null || fileName.getName().equals( "" ) )
             JOptionPane.showMessageDialog( this, "Invalid File Name",
                "Invalid File Name", JOptionPane.ERROR_MESSAGE );
          else {
             // open file
             try {
                output = new ObjectOutputStream(
                   new FileOutputStream( fileName ) );
                SaveAs.setEnabled( false );
                SaveToFile.setEnabled( true );
              Exit.setEnabled( true );
             // process exceptions from opening file
             catch ( IOException ioException ) {
                JOptionPane.showMessageDialog( this, "Error Opening File",
                   "Error", JOptionPane.ERROR_MESSAGE );
          } // end else
       } // end method openFile
       // close file and terminate application
    private void closeFile()
          // close file
          try {
              //you want to cycle through each recordand add them to store here.
                                            int storeSize = store.getCount();
                                            for (int i = 0; i<storeSize;i++)
                                            output.writeObject(store.elementAt(i));
             output.close();
    input.close();// from read!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
             System.exit( 0 );
          // process exceptions from closing file
          catch( IOException ioException ) {
             JOptionPane.showMessageDialog( this, "Error closing file",
                "Error", JOptionPane.ERROR_MESSAGE );
             System.exit( 1 );
       } // end method closeFile
       // add record to file
       public void addRecord()
          int employeeNumber = 0;
          String fieldValues[] = userInterface.getFieldValues();
          // if account field value is not empty
          if ( ! fieldValues[ BankUI.IDNUMBER ].equals( "" ) ) {
             // output values to file
             try {
                employeeNumber = Integer.parseInt(
                   fieldValues[ BankUI.IDNUMBER ] );
                        String dob = fieldValues[ BankUI.DOB ];
                        String[] dateofBirth = dob.split ("-"); // what used to put between number chnage to /
                        String sDate = fieldValues[ BankUI.START ];
                        String[] startDate = sDate.split ("-");
                        String sex = fieldValues[ BankUI.GENDER ];
                        char gender = (sex.charAt(0)); // check if m or f prob check in employee
    if ( employeeNumber >= 0 ) {
                  /* create new record =String name, char gender, Date dob, String add, String nin, String phone, String id, Date start, float salary*/
                    record  = new Employee(
                    fieldValues[ BankUI.NAME ],
                        gender,
                    new Date(     Integer.parseInt(dateofBirth[0]),
                              Integer.parseInt(dateofBirth[1]),
                              Integer.parseInt(dateofBirth[2])),
                        fieldValues[ BankUI.ADDRESS ],
                        fieldValues[ BankUI.NATINTNO ],
                        fieldValues[ BankUI.PHONE ],
                        fieldValues[ BankUI.IDNUMBER ],
              new Date(     Integer.parseInt(startDate[0]),
                              Integer.parseInt(startDate[1]),
                              Integer.parseInt(startDate[2])),
              Float.parseFloat( fieldValues[ BankUI.SALARY ] ));
                        if (!store.isFull())
                             store.add(record);
                        else
                        JOptionPane.showMessageDialog( this, "The Store is full you cannot add\n"+
                         "anymore employees. \nPlease Save Current File and Create a New File." );
                             System.out.println("Store full");
                        store.displayAll();
                        System.out.println("Count is " + store.getCount());
                                  // output record and flush buffer
                                  //output.writeObject( record );
                   output.flush();
                else
                    JOptionPane.showMessageDialog( this,
                       "Account number must be greater than 0",
                       "Bad account number", JOptionPane.ERROR_MESSAGE );
                // clear textfields
                userInterface.clearFields();
             } // end try
             // process invalid account number or balance format
             catch ( NumberFormatException formatException ) {
                JOptionPane.showMessageDialog( this,
                   "Bad ID number, Date or Salary", "Invalid Number Format",
                   JOptionPane.ERROR_MESSAGE );
             // process exceptions from file output
             catch ( ArrayIndexOutOfBoundsException ArrayException ) {
                 JOptionPane.showMessageDialog( this, "Error with Start Date or Date of Birth\nPlease enter like: 01-01-2001",
                    "IO Exception", JOptionPane.ERROR_MESSAGE );
                      // process exceptions from file output
             catch ( IOException ioException ) {
                 JOptionPane.showMessageDialog( this, "Error writing to file",
                    "IO Exception", JOptionPane.ERROR_MESSAGE );
                closeFile();
          } // end if
       } // end method addRecord
       public static void main( String args[] )
          new testing();
    } // end class CreateSequentialFile

    Sure you can read and write at the same time. But normally you would be reading from one place and writing to another place.
    I rather regret avoiding the OP's earlier post asking how to combine two classes. I looked at the two classes posted and realized the best thing to do was actually to break them into more classes. But I also realized it was going to be a big job explaining why and how, and I just don't have the patience for that sort of thing.
    So now we have a Big Ball Of Tar&trade; and I feel partly responsible.

  • Plugin-container and Flashplugin are both generating a million reads and writes an hour... even when Firefox is minimized and running no audio/video; how can I

    I am running FF 18.0.2 on a Win7 system with an i7 CPU and 8GB RAM. My Flash plugin is newly-updated. I've used Firefox on this machine its entire life (3 years).
    Since 3 or 4 (?) versions ago, I've been getting massive activity on my hard drive with Firefox. When I check with Win Task Manager, I see the plugin-container.exe *32 and the FlashPlayerPlugin_11_5_502_149.exe *32 processes are generating millions of I/O reads and writes, even while Firefox is idle (minimized, running no audio or video). On this latest version, 18.0.2, the drive activity stalls out YouTube videos repeatedly, even though I can see they're buffered ahead. The playing video will stop, audio will continue to end of buffer, and then EVERYTHING stops (Firefox not responding) for 30 seconds or so. It will then pickup again and play until it repeats the same pattern in a minute or so.
    Example: I closed and restarted Firefox 2 days ago. Earlier today I checked Windows Task Manager and found the two processes EACH generated about 161 million reads and 141 million writes since then! My wife's laptop is showing nothing like a hundredth of that.
    The constant drive activity is slowing down all programs outside of Firefox too, as you might imagine. The PC is acting like it's a dedicated machine for Flash.

    The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.
    Note: ''This will cause you to lose any Extensions, Open websites, and some Preferences.''
    To Reset Firefox do the following:
    #Go to Firefox > Help > Troubleshooting Information.
    #Click the "Reset Firefox" button.
    #Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
    #Firefox will open with all factory defaults applied.
    Further information can be found in the [[Reset Firefox – easily fix most problems]] article.
    Did this fix your problems? Please report back to us!

  • How to burn read and write files on DVD

    I would like to know how to burn DVDs (image files) with the Read and Write setting. I have changed the settings in Get Info for the image files to Read and Write for Owner, Group and Others and yet when I burn the DVD and try and copy the files back onto the hard drive (to test if it works or not) it won't allow me. When I check the Get Info it says Read and Write for owner (greyed out) and Read Only for Group and Others (greyed out too).
    I have also tried to change the status of the blank DVD before adding files and after adding the files (but b4 the burn) to Read and Write, this works but then during the burn process the DVD or burner changes my settings to Read Only.
    I am burning with Finder and have tried with Toast 10 Titanium. What am I doing wrong, or not doing at all?! I'm going loopy with frustration!

    Kiraly, I agree that the actual problem here might be something else, but as a side issue there seems to be a difference in the way permissions are handled when a file copy is made using Finder compared to when the copy is made using the cp copy in Terminal. At least in my Tiger system, Finder preserved the permission structure, though not the ownership, when it copied a file, whereas cp used the OS defaults.
    I tried the following experiment:
    From my test user account "t", I created a textfile named ReadWrite.txt, and gave it Read+Write permissions for Owner, Group, and Others. I then burned it using Finder to a DVD which I named PermissionTest, and then unchecked the "Ignore Ownership" box on PermissionTest.
    The original ownership and permissions were preserved on the DVD, though of course you couldn't actually write to anything there:
    xxG5-Computer:~ t$ ls -l /Volumes/PermissionTest/ReadWrite.txt
    -rw-rw-rw- 1 t t 15 Sep 13 18:25 /Volumes/PermissionTest/ReadWrite.txt
    I then copied the file from the DVD to the Desktop using Finder, and the permissions were preserved!
    Finder copy:
    xxG5-Computer:~ t$ ls -l /Users/t/Desktop/ReadWrite.txt
    -rw-rw-rw- 1 t t 15 Sep 13 18:25 /Users/t/Desktop/ReadWrite.txt
    I then trashed the Finder copy of ReadWrite,txt on the desktop, and made a second copy from the DVD, but this time I used the cp command from Terminal instead of using Finder. This time the permissions were not preserved, but reverted to the OS default:
    cp copy:
    xxG5-Computer:~ t$ cp /Volumes/PermissionTest/ReadWrite.txt Desktop
    xxG5-Computer:~ t$ ls -l /Users/t/Desktop/ReadWrite.txt
    -rw-r--r-- 1 t t 15 Sep 13 19:43 /Users/t/Desktop/ReadWrite.txt
    I then switched to a different user account "t1", and repeated the above with the same DVD, first copying the ReadWrite.txt file to the desktop using Finder, and then using cp. The ownership of the copied file changed from t to t1 in both cases, but the permission structure again was preserved in the Finder copy but not in the cp copy:
    DVD file:
    xxG5-Computer:~ t1$ ls -l /Volumes/PermissionTest/ReadWrite.txt
    -rw-rw-rw- 1 t t 15 Sep 13 18:25 /Volumes/PermissionTest/ReadWrite.txt
    Finder copy:
    xxG5-Computer:~ t1$ ls -l /Users/t1/Desktop/ReadWrite.txt
    -rw-rw-rw- 1 t1 t1 15 Sep 13 18:25 /Users/t1/Desktop/ReadWrite.txt
    cp copy:
    xxG5-Computer:~ t1$ cp /Volumes/PermissionTest/ReadWrite.txt Desktop
    xxG5-Computer:~ t1$ ls -l /Users/t1/Desktop/ReadWrite.txt
    -rw-r--r-- 1 t1 t1 15 Sep 13 19:51 /Users/t1/Desktop/ReadWrite.txt
    I got similar results when I tried copying a file with Read+Write permissions for all from a USB flash drive to the Desktop, again with the "Ignore Ownership" box unchecked.

  • Slow read and write operations on DAQmx

    I am trying to build up a feedback control system using PCI-6052E and PCI-6722 cards, so that the computation of the control algorithm is performed on computer's CPU. I am trying to reach sampling period of 1kHz. It turns out that the bottleneck of my system are the read and write operations from and to cards that consume lot of processor time.
    An example code (C#) that shows how the reads and writes are implemented is as attachment. On my tests the example code produces a read-time of 1000 samples on 6 channels 7.58s and a write-time of 4.69s. Is there any way to improve the performance?
    The program is running on Windows XP on 1000Mhz processor.
    Attachments:
    DAQmxPerformanceTest.cs ‏3 KB

    Petteri,
    I don't have the hardware to reproduce this, but I have a few ideas. For analog output, are you creating a task, starting it, and calling write repeatedly, or are you simply calling write? While an AO Task will auto start on write, it will also go through the process of stopping when the write is complete. Which means next time you call write, the task will need to start again. It will be much more effecient if you explicitly call start on the task once, perform as many writes as required, and stop/clear the task when you are done. This same principle applies to you analog input reads as well.
    I hope this helps,
    Dan

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