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volumes: SetNodeStatusUpdateNeeded on error

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If an error happened during the UpdateNodeStatuses loop, there were some
code paths where we would not call SetNodeStatusUpdateNeeded, leaking
the state.  Add it to all paths by adding a function.

Part of #40583
This commit is contained in:
Justin Santa Barbara 2017-02-28 10:56:09 -05:00
parent 7043372d05
commit d420531f95
2 changed files with 69 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
pkg/controller/volume/attachdetach/statusupdater/BUILD
View File

@ -22,6 +22,7 @@ go_library(
"//pkg/controller/volume/attachdetach/cache:go_default_library",
"//vendor/github.com/golang/glog:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/api/errors:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/types:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/strategicpatch:go_default_library",
],
)

25
pkg/controller/volume/attachdetach/statusupdater/node_status_updater.go
View File

@ -25,6 +25,7 @@ import (
"github.com/golang/glog"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/strategicpatch"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/v1"
@ -83,6 +84,24 @@ func (nsu *nodeStatusUpdater) UpdateNodeStatuses() error {
continue
}
if err := nsu.updateNodeStatus(nodeName, nodeObj, attachedVolumes); err != nil {
// If update node status fails, reset flag statusUpdateNeeded back to true
// to indicate this node status needs to be updated again
nsu.actualStateOfWorld.SetNodeStatusUpdateNeeded(nodeName)
glog.V(2).Infof(
"Could not update node status for %q; re-marking for update. %v",
nodeName,
err)
// We currently always return immediately on error
return err
}
}
return nil
}
func (nsu *nodeStatusUpdater) updateNodeStatus(nodeName types.NodeName, nodeObj *v1.Node, attachedVolumes []v1.AttachedVolume) error {
clonedNode, err := api.Scheme.DeepCopy(nodeObj)
if err != nil {
return fmt.Errorf("error cloning node %q: %v",
@ -128,20 +147,16 @@ func (nsu *nodeStatusUpdater) UpdateNodeStatuses() error {
_, err = nsu.kubeClient.Core().Nodes().PatchStatus(string(nodeName), patchBytes)
if err != nil {
// If update node status fails, reset flag statusUpdateNeeded back to true
// to indicate this node status needs to be updated again
nsu.actualStateOfWorld.SetNodeStatusUpdateNeeded(nodeName)
return fmt.Errorf(
"failed to kubeClient.Core().Nodes().Patch for node %q. %v",
nodeName,
err)
}
glog.V(2).Infof(
glog.V(4).Infof(
"Updating status for node %q succeeded. patchBytes: %q VolumesAttached: %v",
nodeName,
string(patchBytes),
node.Status.VolumesAttached)
}
return nil
}