if errors.Is(err, errConfigNotFound) {
			return nil
		}
		return err
	}

	z.rebalMu.Lock()
	if len(r.PoolStats) == len(z.serverPools) {
		z.rebalMeta = r
	} else {
		z.updateRebalanceStats(ctx)
	}
	z.rebalMu.Unlock()

	return nil
}

// updates rebalance.bin from let's say 2 pool setup in the middle
// of a rebalance, was expanded can cause z.rebalMeta to be outdated