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Restore expectation timeout to 5 minutes. Fix enqueueDeployment. Pass by reference.

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Make names of ReplicaSets created by Deployment deterministic for idempotence.
Eliminate use of expectations in Deployment controller.
This commit is contained in:
Brian Grant
2016-02-28 02:13:32 +00:00
parent c768d477c3
commit d0dd4f8a93
10 changed files with 108 additions and 192 deletions
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19
pkg/controller/controller_utils.go
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@@ -36,7 +36,21 @@ import (
"k8s.io/kubernetes/pkg/util"
)
const CreatedByAnnotation = "kubernetes.io/created-by"
const (
CreatedByAnnotation = "kubernetes.io/created-by"
// If a watch drops a delete event for a pod, it'll take this long
// before a dormant controller waiting for those packets is woken up anyway. It is
// specifically targeted at the case where some problem prevents an update
// of expectations, without it the controller could stay asleep forever. This should
// be set based on the expected latency of watch events.
//
// Currently a controller can service (create *and* observe the watch events for said
// creation) about 10 pods a second, so it takes about 1 min to service
// 500 pods. Just creation is limited to 20qps, and watching happens with ~10-30s
// latency/pod at the scale of 3000 pods over 100 nodes.
ExpectationsTimeout = 5 * time.Minute
)
var (
KeyFunc = framework.DeletionHandlingMetaNamespaceKeyFunc
@@ -150,10 +164,9 @@ func (r *ControllerExpectations) SatisfiedExpectations(controllerKey string) boo
// TODO: Extend ExpirationCache to support explicit expiration.
// TODO: Make this possible to disable in tests.
// TODO: Parameterize timeout.
// TODO: Support injection of clock.
func (exp *ControlleeExpectations) isExpired() bool {
return util.RealClock{}.Since(exp.timestamp) > 10*time.Second
return util.RealClock{}.Since(exp.timestamp) > ExpectationsTimeout
}
// SetExpectations registers new expectations for the given controller. Forgets existing expectations.