4 Replies Latest reply on Sep 22, 2006 3:31 AM by RuiRosao

    Flex Data Management  Service

    RuiRosao Level 1
      I have developped a FDS application that functions well on my development computer, and also if I deploy it on one of our internet servers. This application reads data from a hsql database, and displays it in an editable datagrid. The database resides under the WEB-INF folder of my application.
      I'm using Apache Tomcat as the web container, serving the contents on port 8080 for both: the development computer and the remote server.
      I can run the application, editting data, seeing the data updates, etc. in the following cases:
      1. From different client-computers (intel, mac) if I load the app from the internet server. E.g. two computers accessing
      http://myServer.nl:8080/myApp.mxml will be able to see the data, edit it, and see each ones changes almost immediately. Great!!!
      2. On my own local development computer, if I load the application in two browser windows, as http://localhost:8080/yApp.mxml.
      I see data, can edit the data, and see the changes in both browsers.

      My dev.computer has local IP address:
      In the following situation the application will start, but no data will load:
      3. My dev.computer has Tomcat running (in Flex-debug mode), i.e. is the server at
      If I connect from another computer on our intranet, e.g., using, I can see myApp loading, but the datagrid will not be populated! In the Tomcat console I will see the mxml being compiled, but no exchange in terms of command/acknowledgement packets, etc.
      So I placed a crossdomain.xml file on my dev.computer:
      <?xml version="1.0"?>
      <!DOCTYPE cross-domain-policy SYSTEM " http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd">
      <allow-access-from domain="*" to-ports="*"/>
      But this does not help me further. I don't know exactly where to place it, but tried many different places within the myApp project. Besides, I am on the same domain??

      My question: how can I make this work for the local intranet?
      I am open for any suggestion.

      A. I get the same situation when I try DMS examples from Adobe blogs, e.g. the testdrive examples from Christophe Coenraads. (great work done by Christophe).
      B. Of course I can continue developping and testing using the remote server. But it is much more convenient to do it locally, and besides I would like to learn what I'm doing wrong ;-))
      Rui Rosado

        • 1. Re: Flex Data Management  Service
          There are a couple of things to check here. First, make sure that youre configuration settings for each channel are correct. If those all look good (i.e. have the correct IP) then make sure you are running the debug player. Set your mm.cfg file to turn on trace logging.

          [Homedrive:\Documents and settings\user\mm.cfg]

          Add the following mxml code to your application:

          <mx:TraceTarget /> // this will turn on client side logging which defaults to show everything

          Run the application and then open the flashlog.txt file and look for any errors related to channel connect problems or possible sandbox violations. The flashlog.txt file will be located in the same directory as the mm.cfg unless you have specified it to reside somewhere else within the mm.cfg file.
          • 2. Re: Flex Data Management  Service
            RuiRosao Level 1
            Thank you for the hint, jasowill. I have figured things out on my developer PC and get a nice flashlog with lots of details. I did a quick try on one of the PCs on the network, but I got no flashlog.txt. I think I'll have to install the debug version of Flashplayer. I don't know how to do that yet, but will figure that out tomorrow. Will keep you informed.
            • 3. Re: Flex Data Management  Service
              RuiRosao Level 1
              After installing the debug version of the flashplayer on one of the PCs on our network I got the following flashlog.txt file:

              'cds-producer-userService-null' producer set destination to 'userService'.
              'cds-consumer-userService-null' consumer set destination to 'userService'.
              Configuration for destination='userService':

              <identity property="user_id"/>
              <paging enabled="false" pageSize="10"/>
              cds-producer-userService-null New DataManager destination='userService'
              'B8DCCC0C-290C-BC96-9524-D1E6FC88A811' producer set destination to 'userService'.
              cds-producer-userService-null DataService.fill() called with 0 arguments.

              Client ID specified in subscribe is ignored when a session is assigned.
              'cds-consumer-userService-null' consumer subscribe.
              'my-rtmp' channel endpoint set to rtmp://dev01:2038
              'my-rtmp' channel settings are:
              <channel id="my-rtmp" type="mx.messaging.channels.RTMPChannel">
              <endpoint uri="rtmp://{server.name}:2038"/>
              'cds-producer-userService-null' producer sending message '712449D0-2749-F63C-7815-D1E6FCB0A12A'
              'my-rtmp' channel got status. (Object)#0
              code = "NetConnection.Connect.Failed"
              level = "error"
              'my-rtmp' channel polling stopped.
              'my-rtmp' channel connect failed.
              'cds-consumer-userService-null' consumer channel faulted with Channel.Connect.Failed null
              'cds-consumer-userService-null' consumer starting resubscribe timer.
              'cds-producer-userService-null' producer channel faulted with Channel.Connect.Failed null
              'cds-producer-userService-null' producer fault for '712449D0-2749-F63C-7815-D1E6FCB0A12A'.
              'cds-consumer-userService-null' consumer trying to resubscribe.
              'cds-consumer-userService-null' consumer trying to resubscribe.
              'cds-consumer-userService-null' consumer trying to resubscribe.
              'cds-consumer-userService-null' consumer trying to resubscribe.
              'cds-consumer-userService-null' consumer trying to resubscribe.
              'my-rtmp' channel got status. (Object)#0
              code = "NetConnection.Connect.Failed"
              level = "error"
              'my-rtmp' channel polling stopped.
              'my-rtmp' channel connect failed.

              The last block is repeated a couple of times. Still I cannot figure out why I cannot get a data-connection with the PC where the application server is installed. The view is OK, and i can navigate it.

              Reminder: all works well when i connect to the same application installed on an external (internet) server. Crossdomain.xml problem? Where to install crossdomain.xml in a Tomcat 5.5 web-container?

              Any hints?

              • 4. Re: Flex Data Management  Service
                RuiRosao Level 1
                Problem solved. Thank you for the debugging tip, Jasowill.
                We had opened ports 2038,9100 and 8080 (tomcat) in our pc-firewalls.
                Apparantly RTMP is using port 2037 for the data, although it is configured for 2038 in services-config.xml.
                After opening port 2037 in the firewall everything works fine, although this leaves me with the question why port 2037 is used instead of 2038?