Merge pull request #46437 from ncdc/ns-ctrl-5-workers

Automatic merge from submit-queue (batch tested with PRs 45949, 46009, 46320, 46423, 46437)

Up namespace controller workers to 5

Increase the number of namespace controller workers from 2 to 5 in an
effort to speed up namespace deletions.

xref #20051

cmd/kube-controller-manager/app/options/options.go

@@ -66,7 +66,7 @@ func NewCMServer() *CMServer {
 			ConcurrentJobSyncs:                              5,
 			ConcurrentResourceQuotaSyncs:                    5,
 			ConcurrentDeploymentSyncs:                       5,
-			ConcurrentNamespaceSyncs:                        2,
+			ConcurrentNamespaceSyncs:                        5,
 			ConcurrentSATokenSyncs:                          5,
 			LookupCacheSizeForRC:                            4096,
 			LookupCacheSizeForRS:                            4096,