Merge pull request #3018 from yanfeng1992/automated-cherry-pick-of-#3…

…010-upstream-release-1.2

Automated cherry pick of #3010: search filter out not ready cluster

pkg/search/controller.go

@@ -178,7 +178,7 @@ func (c *Controller) doCacheCluster(cluster string) error {
 		return nil
 	}
 
-	// STEP1: stop informer manager for the cluster which does not exist anymore.
+	// STEP1: stop informer manager for the cluster which does not exist anymore or is not ready.
 	cls, err := c.clusterLister.Get(cluster)
 	if err != nil {
 		if apierrors.IsNotFound(err) {
@@ -195,6 +195,12 @@ func (c *Controller) doCacheCluster(cluster string) error {
 		return nil
 	}
 
+	if !util.IsClusterReady(&cls.Status) {
+		klog.Warningf("cluster %s is notReady try to stop this cluster informer", cluster)
+		c.InformerManager.Stop(cluster)
+		return nil
+	}
+
 	// STEP2: added/updated cluster, builds an informer manager for a specific cluster.
 	if !c.InformerManager.IsManagerExist(cluster) {
 		klog.Info("try to build informer manager for cluster ", cluster)