// UpdateNodeStatus is used to update the status of a node func (s *StateStore) UpdateNodeStatus(index uint64, nodeID, status string) error { txn := s.db.Txn(true) defer txn.Abort() // Lookup the node existing, err := txn.First("nodes", "id", nodeID) if err != nil { return fmt.Errorf("node lookup failed: %v", err) } if existing == nil { return fmt.Errorf("node not found") } // Copy the existing node existingNode := existing.(*structs.Node) copyNode := new(structs.Node) *copyNode = *existingNode // Update the status in the copy copyNode.Status = status copyNode.ModifyIndex = index // Insert the node if err := txn.Insert("nodes", copyNode); err != nil { return fmt.Errorf("node update failed: %v", err) } if err := txn.Insert("index", &IndexEntry{"nodes", index}); err != nil { return fmt.Errorf("index update failed: %v", err) } txn.Commit() return nil }