ANSWER:
WebLogic Server uses two mechanisms to determine if a given server instance is unavailable.
Each WebLogic Server instance in a cluster uses multicast to broadcast regular “heartbeat” messages that
advertise its availability. By monitoring heartbeat messages, server instances in a cluster determine when a server instance has failed. The other server instances will drop a server instance from the cluster, if they do not receive three consecutive heartbeats from that server instance WebLogic Server also monitors socket errors to determine the availability of a server instance.
Forexample, if server instance 'A' has an open socket to server instance 'B', and the socket unexpectedly closes, server A assumes that server B is offline.
WebLogic Server uses two mechanisms to determine if a given server instance is unavailable.
Each WebLogic Server instance in a cluster uses multicast to broadcast regular “heartbeat” messages that
advertise its availability. By monitoring heartbeat messages, server instances in a cluster determine when a server instance has failed. The other server instances will drop a server instance from the cluster, if they do not receive three consecutive heartbeats from that server instance WebLogic Server also monitors socket errors to determine the availability of a server instance.
Forexample, if server instance 'A' has an open socket to server instance 'B', and the socket unexpectedly closes, server A assumes that server B is offline.
Imagine if you had a robot with 6 years authenticated proof?
ReplyDeleteI just finished a webinar with Mark and his partner, Antony, two days ago and it was AMAZING.
During the webinar MARK and ANTONY shared their stories to success and answered questions about their new version of the GPS Forex Robot that came out TODAY!