e.mu.Lock()
	defer e.mu.Unlock()
	e.deleteServiceInner(shard, serviceName, namespace, preserveKeys)
}

func (e *EndpointIndex) DeleteShard(shardKey ShardKey) {
	e.mu.Lock()
	defer e.mu.Unlock()
	for svc, shardsByNamespace := range e.shardsBySvc {
		for ns := range shardsByNamespace {
			e.deleteServiceInner(shardKey, svc, ns, false)
		}
	}
	if e.cache == nil {
		return
	}