This is mostly useful to support clustering via client-side sharding.
/**
* Retrieves a connection instance from the cluster using a key.
*
* @param string $key Key string.
*
* @return NodeConnectionInterface
*/
public function getConnectionByKey($key)
{
$hash = $this->strategy->getSlotByKey($key);
$node = $this->distributor->getBySlot($hash);
return $node;
}
