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make cluster event queue consumption non-blocking

This commit is contained in:
Murat Kabilov 2017-08-15 16:03:19 +02:00
parent d2828e5ece
commit dad8e2f49f
1 changed files with 17 additions and 16 deletions
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33
pkg/controller/postgresql.go
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@ -142,13 +142,9 @@ func (c *Controller) addCluster(lg *logrus.Entry, clusterName spec.NamespacedNam
return cl
}
func (c *Controller) processEvent(obj interface{}) error {
func (c *Controller) processEvent(event spec.ClusterEvent) {
var clusterName spec.NamespacedName
event, ok := obj.(spec.ClusterEvent)
if !ok {
return fmt.Errorf("could not cast to ClusterEvent")
}
lg := c.logger.WithField("worker", event.WorkerID)
if event.EventType == spec.EventAdd || event.EventType == spec.EventSync {
@ -166,7 +162,7 @@ func (c *Controller) processEvent(obj interface{}) error {
case spec.EventAdd:
if clusterFound {
lg.Debugf("cluster already exists")
return nil
return
}
lg.Infof("creation of the cluster started")
@ -177,7 +173,7 @@ func (c *Controller) processEvent(obj interface{}) error {
cl.Error = fmt.Errorf("could not create cluster: %v", err)
lg.Error(cl.Error)
return nil
return
}
lg.Infoln("cluster has been created")
@ -186,13 +182,13 @@ func (c *Controller) processEvent(obj interface{}) error {
if !clusterFound {
lg.Warnln("cluster does not exist")
return nil
return
}
if err := cl.Update(event.NewSpec); err != nil {
cl.Error = fmt.Errorf("could not update cluster: %v", err)
lg.Error(cl.Error)
return nil
return
}
cl.Error = nil
lg.Infoln("cluster has been updated")
@ -202,12 +198,12 @@ func (c *Controller) processEvent(obj interface{}) error {
lg.Infoln("Deletion of the cluster started")
if !clusterFound {
lg.Errorf("unknown cluster: %q", clusterName)
return nil
return
}
if err := cl.Delete(); err != nil {
lg.Errorf("could not delete cluster: %v", err)
return nil
return
}
func() {
@ -238,14 +234,12 @@ func (c *Controller) processEvent(obj interface{}) error {
if err := cl.Sync(); err != nil {
cl.Error = fmt.Errorf("could not sync cluster: %v", err)
lg.Error(cl.Error)
return nil
return
}
cl.Error = nil
lg.Infof("cluster has been synced")
}
return nil
}
func (c *Controller) processClusterEventsQueue(idx int, stopCh <-chan struct{}, wg *sync.WaitGroup) {
@ -257,13 +251,20 @@ func (c *Controller) processClusterEventsQueue(idx int, stopCh <-chan struct{},
}()
for {
if _, err := c.clusterEventQueues[idx].Pop(cache.PopProcessFunc(c.processEvent)); err != nil {
obj, err := c.clusterEventQueues[idx].Pop(cache.PopProcessFunc(func(interface{}) error { return nil }))
if err != nil {
if err == cache.FIFOClosedError {
return
}
c.logger.Errorf("error when processing cluster events queue: %v", err)
continue
}
event, ok := obj.(spec.ClusterEvent)
if !ok {
c.logger.Errorf("could not cast to ClusterEvent")
}
c.processEvent(event)
}
}