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Each node in the cluster is monitored by the master nodes and assigned with a condition (state), that describes the status of different aspects of the node. The conditions types are: OutOfDisk, Ready, MemoryPressure, DiskPressure, NetworkUnavailable. Each condition type is assigned with a status: False, True or Unknown.
To ensure optimal performances, Ocean monitors the nodes’ status every 30 seconds and in case it identifies that the Ready condition is False or Unknown, it considers this node as Unhealthy and triggers a replacement.