Bright:HA concepts

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What is HA

A cluster with a single head node has a single point a failure. In other words if the head node fails the entire cluster will be down. HA allows a cluster to have two head nodes to allow fail-over.

HA concepts

Each of the head nodes will have two states associated with it - Primary or Secondary, Active or Passive. Under normal circumstances the Primary head node will be in active mode, while the secondary head ndoe will be in passive mode.

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