What is a cluster? What is High Availability and Fail over?

Answer Posted / ramu2k20

ctuster is a group of managed server act as a single server
is called a cluster.
High availability:high availability is the guaranty of the
availability of the application server in a weblogic server
cluster application processing can continue when server
instance fails.By deploying multiple server instance in a
cluster. so if a server instance on which the component is
running fails. Another server instance on which the
component is deployed can continue application processing.
Fail Over:To distribute the request across all members of
the clusters, according to the workload on each server.

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