Method Err

core/services/nodes/managers_distributed.go:106–117

Err returns a non-nil error aggregating per-node hard failures (Status == "error"). Queued nodes (waiting for reconciler retry) are not failures — surfacing them as errors would mislead users about durable intent. Used by Install/Upgrade/Delete so reply.Success=false from workers reaches OpStatus.Er

()

// workers reaches OpStatus.Error and the UI, instead of being silently
// dropped on the way up.
func (r BackendOpResult) Err() error {
	var failures []string
	for _, n := range r.Nodes {
		if n.Status == galleryop.NodeStatusError {
			failures = append(failures, fmt.Sprintf("%s: %s", n.NodeName, n.Error))
		}
	}
	if len(failures) == 0 {
		return nil
	}
	return errors.New(strings.Join(failures, "; "))
}

// enqueueAndDrainBackendOp is the shared scaffolding for
// delete/install/upgrade. Every non-pending node gets a pending_backend_ops