// Loop infinitely, processing all service updates provided by the queue.
func (s *ServiceController) watchServices(serviceQueue *cache.DeltaFIFO) {
for {
serviceQueue.Pop(func(obj interface{}) error {
deltas, ok := obj.(cache.Deltas)
if !ok {
runtime.HandleError(fmt.Errorf("Received object from service watcher that wasn't Deltas: %+v", obj))
return nil
}
delta := deltas.Newest()
if delta == nil {
runtime.HandleError(fmt.Errorf("Received nil delta from watcher queue."))
return nil
}
err, retryDelay := s.processDelta(delta)
if retryDelay != 0 {
// Add the failed service back to the queue so we'll retry it.
runtime.HandleError(fmt.Errorf("Failed to process service delta. Retrying in %s: %v", retryDelay, err))
go func(deltas cache.Deltas, delay time.Duration) {
time.Sleep(delay)
if err := serviceQueue.AddIfNotPresent(deltas); err != nil {
runtime.HandleError(fmt.Errorf("Error requeuing service delta - will not retry: %v", err))
}
}(deltas, retryDelay)
} else if err != nil {
runtime.HandleError(fmt.Errorf("Failed to process service delta. Not retrying: %v", err))
}
return nil
})
}
}
// Loop infinitely, processing all service updates provided by the queue.
func (s *ServiceController) watchServices(serviceQueue *cache.DeltaFIFO) {
for {
newItem := serviceQueue.Pop()
deltas, ok := newItem.(cache.Deltas)
if !ok {
glog.Errorf("Received object from service watcher that wasn't Deltas: %+v", newItem)
}
delta := deltas.Newest()
if delta == nil {
glog.Errorf("Received nil delta from watcher queue.")
continue
}
err, shouldRetry := s.processDelta(delta)
if shouldRetry {
// Add the failed service back to the queue so we'll retry it.
glog.Errorf("Failed to process service delta. Retrying: %v", err)
time.Sleep(processingRetryInterval)
serviceQueue.AddIfNotPresent(deltas)
} else if err != nil {
util.HandleError(fmt.Errorf("Failed to process service delta. Not retrying: %v", err))
}
}
}