// SendStatusUpdate sends status updates to the slave.
func (driver *MesosExecutorDriver) SendStatusUpdate(taskStatus *mesosproto.TaskStatus) (mesosproto.Status, error) {
log.V(3).Infoln("Sending task status update: ", taskStatus.String())
if stat := driver.Status(); stat != mesosproto.Status_DRIVER_RUNNING {
return stat, fmt.Errorf("Unable to SendStatusUpdate, expecting driver.status %s, but got %s", mesosproto.Status_DRIVER_RUNNING, stat)
}
if taskStatus.GetState() == mesosproto.TaskState_TASK_STAGING {
err := fmt.Errorf("Executor is not allowed to send TASK_STAGING status update. Aborting!")
log.Errorln(err)
if err0 := driver.stop(mesosproto.Status_DRIVER_ABORTED); err0 != nil {
log.Errorln("Error while stopping the driver", err0)
}
return driver.Status(), err
}
// Set up status update.
update := driver.makeStatusUpdate(taskStatus)
log.Infof("Executor sending status update %v\n", update.String())
// Capture the status update.
driver.lock.Lock()
driver.updates[uuid.UUID(update.GetUuid()).String()] = update
driver.lock.Unlock()
// Put the status update in the message.
message := &mesosproto.StatusUpdateMessage{
Update: update,
Pid: proto.String(driver.self.String()),
}
// Send the message.
if err := driver.send(driver.slaveUPID, message); err != nil {
log.Errorf("Failed to send %v: %v\n", message, err)
return driver.status, err
}
return driver.Status(), nil
}