MongoDB\Driver\Server::getLatency
(mongodb >=1.0.0)
MongoDB\Driver\Server::getLatency — Returns the latency of this server in milliseconds
Descripción
Returns the latency of this server in milliseconds. This is the client's
measured
» round trip time
of a hello command.
Parámetros
Esta función no tiene parámetros.
Valores devueltos
Returns the latency of this server in milliseconds, or null if no latency
has been measured (e.g. client is connected to a load balancer).
Errores/Excepciones
- Lanza una MongoDB\Driver\Exception\InvalidArgumentException en errores de análisis de argumentos.
Historial de cambios
| Versión | Descripción |
|---|---|
| PECL mongodb 1.11.0 |
This method will return null if no latency has been measured. In
earlier versions, an integer was always returned and an unset value
might be reported as -1.
|
Ejemplos
Ejemplo #1 MongoDB\Driver\Server::getLatency() example
<?php
$manager = new MongoDB\Driver\Manager("mongodb://localhost:27017/");
$rp = new MongoDB\Driver\ReadPreference(MongoDB\Driver\ReadPreference::RP_PRIMARY);
$server = $manager->selectServer($rp);
var_dump($server->getLatency());
?>El resultado del ejemplo sería algo similar a:
int(592)
Ver también
- MongoDB\Driver\Server::getInfo() - Returns an array of information describing this server
- MongoDB\Driver\ServerDescription::getRoundTripTime() - Returns the server's round trip time in milliseconds
- » Server Discovery and Monitoring Specification
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