FAST Feed Handler Configuration

Operations Console communicates with the FAST feed handler through an intermediary UAF agent. Use this dialog to set the UAF agent listening port and optional UAF agent component name.

FAST feed handler dialog 1 configuration options
Field name	Default value	Description
Listen Port	3101	Identifies the UDP local listening port for incoming messages.
Component Name	None	Identifies this component. This name appears in the component’s pane on the Operations Console Monitor. Naming the component provides an identity that distinguishes this component from other components of the same type. Projects may include several subscribers or publishers. Track items more easily by assigning unique component names to them.

FAST feed handler listens for FAST messages sent by a FAST feed. This dialog prompts you for the FAST feed parameters.

FAST feed handler dialog 2 configuration options
Field Name	Default value	Description
Listen Host IP Address	None	Identifies the IP address for a network interface to which the incoming feed's UDP channel will be bound. Network resources are optimized since the various channel loads are allowed to be spread out among multiple physical network adapters.
Listen Port	3170	Identifies the UDP local listening port for incoming messages.
Multicast Host IP Address	224.0.255.0	Identifies the class D (multicast) IP address on which this data channel will operate. A publisher can send multicast messages to a subscriber on multiple channels, and the combination of the broadcast IP address and broadcast port must be unique for each channel. All multicast IP addresses must range from 224.0.2.0 – 224.0.255.0

FAST feed handler sends multicast messages to subscribers over one or more data channels. Sybase recommends that you use four channels for a system that handles 300,000 messages per second. Use this dialog to identify the data channels.

FAST feed handler dialog 3 configuration options
Field name	Default value	Description
Channel Name	FAST Channel 1	Identifies the data channel that FAST feed handler uses to send messages to a subscriber. Although the installer assigns FAST 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. Assign unique channel names to more easily track in the event that an error is logged.
Local Interface	None	Identifies the IP address of the network interface to which this channel will be bound, which can improve performance by binding various data channels to separate network interfaces. If you plan to install all publishers and subscribers on the same server, 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 FAST feed handler uses to send multicast messages to subscribers. This value should match the multicast address that subscribers uses 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 – 224.0.255.0.
Broadcast Port	3150	Identifies the local port on which this data channel will operate. Publishers can send 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 that the "I would like to define another data channel" is selected.
Unselect "I would like to define another data channel", and click Next to display the next set of configuration options.

FAST feed handler listens for administrative requests from Operations Console and resend requests from subscribers. Use this dialog to set listening ports and performance options.

FAST feed handler dialog 4 configuration options
Field name	Default value	Description
Administration Listening Port	3102	Identifies the listening port that the publisher uses to monitor administrative requests (including shutdown, restart, and refresh commands) from Operations Console.
Resend Listening Port	3103	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.
Local Interface	Machine hostname	Identifies the local interface that the publisher uses to monitor administrative requests.
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 specified number of packet buffers are created 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. This setting should be adjusted if resend requests from publishers are failing because the packet no longer exists at the publisher. For the publisher, a value of 10000 usually provides sufficient packet history to maintain data integrity under moderate loads.

Installing Operations Console also installs a JINI server that tracks RAP components. This dialog only appears if you install components separately. If you install multiple components at the same time, and previously identified the JINI server host name, the installer does not display this dialog.

FAST feed handler dialog 5 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.