View Source ProcessHub.Strategy.PartitionTolerance.StaticQuorum (ProcessHub v0.2.0-alpha)

The static quorum strategy for partition tolerance is used when the ProcessHub cluster is concerned with partition failures, and the cluster size is known.

When a node leaves or joins the ProcessHub cluster, the static quorum strategy will check if the quorum is present. If the quorum is not present, the ProcessHub will be considered in a network partition, and the distributed supervisor process of the ProcessHub will be terminated along with all the child processes.

Summary

Types

t()

Static quorum strategy configuration.

Types

Link to this type

t()

View Source 
@type t() :: %ProcessHub.Strategy.PartitionTolerance.StaticQuorum{
  quorum_size: non_neg_integer(),
  startup_confirm: boolean()
}

Static quorum strategy configuration.

  • quorum_size - The quorum size is measured in the number of nodes. For example, 3 means that there should be at least 3 nodes in the cluster for the ProcessHub to be considered healthy.
  • startup_confirm - If set to true, the ProcessHub will check if the quorum is present when the ProcessHub is starting up. If the quorum is not present, it will be considered as a network partition. The default value is false.