if !ok {
		return nil, false
	}
	shards, ok := byNs[namespace]
	return shards, ok
}

// GetOrCreateEndpointShard returns the shards. The second return parameter will be true if this service was seen
// for the first time.
func (e *EndpointIndex) GetOrCreateEndpointShard(serviceName, namespace string) (*EndpointShards, bool) {
	e.mu.Lock()
	defer e.mu.Unlock()