Files
kubernetes/pkg/controller
Kubernetes Submit Queue c34b359bd7 Merge pull request #45923 from verult/cxing/NodeStatusUpdaterFix
Automatic merge from submit-queue (batch tested with PRs 46383, 45645, 45923, 44884, 46294)

Node status updater now deletes the node entry in attach updates...

… when node is missing in NodeInformer cache.

- Added RemoveNodeFromAttachUpdates as part of node status updater operations.



**What this PR does / why we need it**: Fixes issue of unnecessary node status updates when node is deleted.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #42438

**Special notes for your reviewer**: Unit tested added, but a more comprehensive test involving the attach detach controller requires certain testing functionality that is currently absent, and will require larger effort. Will be added at a later time.

There is an edge case caused by the following steps:
1) A node is deleted and restarted. The node exists, but is not yet recognized by Kubernetes.
2) A pod requiring a volume attach with nodeName specifically set to this node.

This would make the pod stuck in ContainerCreating state. This is low-pri since it's a specific edge case that can be avoided.

**Release note**:

```release-note
NONE
```
2017-05-26 12:58:02 -07:00
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