The default Failure Detection Protocol monitors the core group network connections that the default Discovery Protocol establishes, and notifies the default Discovery Protocol if a connection failure occurs.
The value that you specify for the
should equal the product of multiplying the value specified for the property, times the property.The heartbeat transmission period and heartbeat timeout period are configurable. Use the administrative console or the wsadmin tool to adjust these settings if the default values are not appropriate for your environment, unless you are running in a mixed cell environment that includes core groups that contain a mixture of Version 7.0 and Version 6.x processes,
The IBM_CS_FD_PERIOD_SECS custom property specifies how frequently the Failure Detection Protocol checks the core group network connections that the discovery protocol establishes.
The IBM_CS_FD_CONSECUTIVE_MISSED property specifies the number of consecutive heartbeats that a member can missed before it is communication with that member is discontinued.
Remember, when you use the administrative console or the wsadmin tool to configure the Failure Detection Protocol, you configure the heartbeat transmission period, and the heartbeat timeout period. However if you are use the custom properties to configure the Failure Detection Protocol, you configure the heartbeat transmission period, and the number of missed consecutive heartbeats.
To use the administrative console to change the settings for the default Failure Detection Protocol complete the following steps.