// in case the queue is stopped but the task has not been executed..
	case <-s.edsQueue.Closed():
		return
	}
}

// doEdsCacheUpdate invokes XdsUpdater's EDSCacheUpdate to update endpoint shards.
func (s *Controller) doEdsCacheUpdate(keys sets.Set[instancesKey]) {
	endpoints := s.buildEndpoints(keys)
	shard := model.ShardKeyFromRegistry(s)
	// This is delete.
	if len(endpoints) == 0 {