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To Start the Mule Server In Debug Mode

  1. To start the server in debug mode, use the following parameters:

    Parameter Description
    -M-Dmule.debug.enable=true

    Mandatory. Sets debugging mode in Mule. Issue this parameter first.

    -M-Dmule.debug.port=<port number>

    Optional. Sets the listening port for incoming connections from Studio. If unset, the listening port will be 6666.

    -M-Dmule.debug.suspend=true

    Optional. Sets "suspend" mode in Mule. In suspend mode, Mule will start, then immediately suspend application execution until it receives a connection on the debug port.

  2. To pass the parameters to the server, follow one of the two methods outlined below.

    1. Method 1: pass the parameters to Mule on the command line in the appropriate order, as shown in the example below.

      
                     
                  
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      <$MULE_HOME>/bin/mule -M-Dmule.debug.enable=true -M-Dmule.debug.port=1234

      The command displayed above starts Mule in the foreground. To exit Mule when it is running in the foreground, press Ctrl+C

      To start Mule in debugging mode in the background, issue start as the first parameter for the mule command, as shown below.

      
                     
                  
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      <$MULE_HOME>/bin/mule start -M-Dmule.debug.enable=true -M-Dmule.debug.port=1234
    2. Method 2: include the parameters in the wrapper configuration file, $MULE_HOME/conf/wrapper.conf, as shown below.


         
      
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wrapper.java.additional.4=-Dmule.debug.enable=true
wrapper.java.additional.5=-Dmule.debug.port=1234

In the code shown above, replace the parameter number to reflect the number of active parameters in your configuration file.

Before accessing and debugging your application on a remote server, you must first export and deploy your application to the desired Mule server.

  1. In Studio, click the arrow next to the debug icon (represented by a small insect), then select Debug Configurations. Studio displays the Debug Configurations window.

  2. In the window’s left pane, click Remote Mule Application.

  3. Click the new configuration icon  (represented by a blank page with a yellow plus sign) to add a new configuration.

  4. Enter the required parameters for the configuration:

    • Name: name for this configuration

    • Host: indicates the location of the remote Mule server

    • Port: indicates the listening port for the remote Mule server

You can debug an application on a remote Mule Server using Remote Mule Application. To do so, you must start the Mule server in debug mode, then connect to the server from Studio.

  • When you start Mule in debug mode, all applications that you launch in that server run in debug mode.

  • Remote debugging does not work with clusters.

In this topic:

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