Demo Feed Handler Configuration

The Demo Feed Handler configuration dialogs allow you to set the UAF agent listening port and UAF agent component name, identify data channels to be used to multicast messages, set listening ports, set performance options and identify the JINI Server Host Name.

Demo Feed Handler configuration dialog 1

Operations Console communicates with the Demo Feed Handler through an intermediary agent. Use this dialog to set the UAF agent listening port and optional UAF agent component name.

Data Feed Handler configuration dialog 1

Table 1. Demo Feed Handler dialog 1 configuration options
Field name	Default value	Description
Listening Port	3001	Identifies the listening port that the UAF agent uses to communicate with Operations Console. You can use any free port on your system.
Component Name	None	Identifies this component. This name provides an identity that distinguishes this component from other components of the same type. Projects may include several subscribers or publishers. Assign unique names to components to easily track them.

Demo Feed Handler configuration dialog 2

Demo Feed Handler multicasts messages to subscribers over one or more data channels. Four channels are recommended for a system that handles 300,000 messages per second. Use this dialog to identify the data channels.

Data Feed Handler configuration dialog 2

Table 2. Demo Feed Handler dialog 2 configuration options
Field name	Default value	Description
Channel Name	Demo Channel 1	Identifies the data channel that Demo Feed Handler uses to send messages to a subscriber. Although the installer assigns Demo Channel 1 to the first data channel by default, you can use any value as the channel name. You must supply a Channel Name to any subsequent data channels you define.
Local Interface	None	Identifies the IP address of the network interface to which this channel will be bound. This allows you to bind various data channels to separate network interfaces to enhance performance. If you plan to install all publishers and subscribers on the same server, you must configure the Local Interface to use the loopback interface (127.0.0.1). If you install publishers and subscribers on different servers, use the local machine address of the secondary Ethernet network card installed by the system administrator.
Broadcast IP Address	224.0.2.0	Identifies the Class D multicast IP address that Demo Feed Handler uses to multicast messages to subscribers. This value should match the multicast address that the subscribers use to receive messages. Although the installer assigns 224.0.2.0 as a default multicast IP address to all Broadcast IP address fields, your Network Administrator can choose an alternate multicast address. All multicast IP addresses must range from `224.0.2.0` through `224.0.255.0`.
Broadcast Port	3050	Identifies the local port on which this data channel will operate. Publishers can multicast messages to a subscriber on multiple data channels. Data channels can share the same local interface and Broadcast IP Address values, but the Broadcast Port must be unique for each data channel.

Note:

After you define the first channel, do one of the following:

Click Next, making sure there is a checkmark in the I would like to define another data channel box to display a blank data channel dialog.
Remove the checkmark in the I would like to define another data channel box, and click Next to display the next set of configuration options.

Demo Feed Handler configuration dialog 3

Demo Feed Handler listens for administrative requests from Operations Console and resend requests from subscribers. Use this dialog to set different listening ports and performance options.

Data Feed Handler configuration dialog 3

Table 3. Demo Feed Handler dialog 3 configuration options
Field name	Default value	Description
Administration Listening Port	3002	Identifies the listening port that the publisher uses to monitor administrative requests from Operations Console.
Resend Listening Port	3003	Identifies the port that the publisher uses to resend cached message packets to the subscriber. Publishers maintain a cache of recently sent message packets to ensure that the subscriber processes all message deliveries.
Number of Packet Buffers	10000	Identifies the number of packet buffers. The publisher holds onto arriving packets of messages until the packets are processed. The number of packet buffers is per data stream. This setting can have a value between 1 and 4 billion, but the machine must have enough memory to hold the number of packets specified. Adjust this setting if resend requests from publishers are failing, because the packet no longer exists. For publishers, a value of 10000 will usually provide sufficient packet history to maintain data integrity under moderate loads.

Demo Feed Handler configuration dialog 4

Installing Operations Console also installs a JINI server that tracks RAP components. This dialog prompts you for the JINI server host name, which is the same host machine where you install Operations Console.You must identify the JINI Server Host Name to register Demo Feed Handler with the JINI Server.

Data Feed Handler configuration dialog 4

Table 4. Demo Feed Handler dialog 4 configuration options
Field name	Description
JINI Server Host Name	Identifies the host name of the server where the RAP JINI server resides. This is the machine on which Operations Console is installed. You must identify the JINI Server Host Name to register this component with the JINI Server.