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hold namespaces briefly before processing deletion

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Jordan Liggitt 2016-11-24 01:40:28 -05:00
parent 545f749a0d
commit 79ec8ae654
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1 changed files with 13 additions and 1 deletions
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14
pkg/controller/namespace/namespace_controller.go
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@ -35,6 +35,16 @@ import (
"github.com/golang/glog"
)
const (
// namespaceDeletionGracePeriod is the time period to wait before processing a received namespace event.
// This allows time for the following to occur:
// * lifecycle admission plugins on HA apiservers to also observe a namespace
// deletion and prevent new objects from being created in the terminating namespace
// * non-leader etcd servers to observe last-minute object creations in a namespace
// so this controller's cleanup can actually clean up all objects
namespaceDeletionGracePeriod = 5 * time.Second
)
// NamespaceController is responsible for performing actions dependent upon a namespace phase
type NamespaceController struct {
// client that purges namespace content, must have list/delete privileges on all content
@ -132,7 +142,9 @@ func (nm *NamespaceController) enqueueNamespace(obj interface{}) {
glog.Errorf("Couldn't get key for object %+v: %v", obj, err)
return
}
nm.queue.Add(key)
// delay processing namespace events to allow HA api servers to observe namespace deletion,
// and HA etcd servers to observe last minute object creations inside the namespace
nm.queue.AddAfter(key, namespaceDeletionGracePeriod)
}
// worker processes the queue of namespace objects.