Installation guide

Chapter 9: Customizing the FlashCONNECT Server and Web Server
102 FlashCONNECT Administrator’s Guide
Configuring the Heartbeat
These parameters are set when configuring the FlashCONNECT heartbeat:
When FCService starts sending a heartbeat, it sends a heartbeat to the first
connection, then after the connection responds or is terminated, sends a heartbeat
to the next connection. The heartbeat period should be long enough so that it does
not cause excessive network traffic and short enough that crashed connections are
terminated in a timely period. Additionally, set the heartbeat period and frequency
so that connections are not incorrectly terminated. We recommend that:
• the w3Monitor heartbeat is at least twice the specified heartbeat period.
• the w3Monitor frequency is less than the w3Monitor heartbeat.
For example, when you configure a server pool from the FlashCONNECT Server Pool
Maintenance Web page, set the w3Monitor frequency to 60 and the w3Monitor
heartbeat to 1201 as displayed in the following example.
Then, set the Heartbeat Period to 600.
frequency (Set in the server pool/Web host definition from the database
server.) Sets the frequency (in seconds) in which w3Monitor
checks this configuration.
heartbeat (Set from the database server.) Sets the server pool/Web host
maximum connection time, for the last communication (either
a heartbeat or a request) with FCService after which
w3Monitor should terminate the connection.
heartbeat
period
(Set from the Web server.) Sets the frequency in which
FCService sends the heartbeat.