# MongoDB\Driver\Monitoring\CommandSubscriber::commandFailed

(mongodb >=1.3.0)

MongoDB\Driver\Monitoring\CommandSubscriber::commandFailed — Notification method for a failed command

### Descripción

abstract public MongoDB\Driver\Monitoring\CommandSubscriber::commandFailed(MongoDB\Driver\Monitoring\CommandFailedEvent `$event`): void

If the subscriber has been registered, the driver will call this method when a command has failed.

### Parámetros

`event` (MongoDB\Driver\Monitoring\CommandFailedEvent)

  An event object encapsulating information about the failed command.

### Valores devueltos

No devuelve ningún valor.

### Errores/Excepciones

- Lanza una MongoDB\Driver\Exception\InvalidArgumentException en errores de análisis de argumentos.

### Ver también

- MongoDB\Driver\Monitoring\CommandFailedEvent
- MongoDB\Driver\Monitoring\addSubscriber() - Registers a monitoring event subscriber globally
- MongoDB\Driver\Manager::addSubscriber() - Registers a monitoring event subscriber with this Manager
- Application Performance Monitoring (APM)