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backing off az.getIPForMachine in az.NodeAddresses

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also rate limiting the call to az.getVirtualMachine inside az.getIPForMachine
This commit is contained in:
Jack Francis 2017-07-14 17:13:40 -07:00
parent 2525ef9983
commit f76ef29512
3 changed files with 28 additions and 2 deletions
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16
pkg/cloudprovider/providers/azure/azure_backoff.go
View File

@ -59,6 +59,22 @@ func (az *Cloud) VirtualMachineClientGetWithRetry(resourceGroup, vmName string,
return machine, err
}
// GetIPForMachineWithRetry invokes az.getIPForMachine with exponential backoff retry
func (az *Cloud) GetIPForMachineWithRetry(name types.NodeName) (string, error) {
var ip string
err := wait.ExponentialBackoff(az.resourceRequestBackoff, func() (bool, error) {
var retryErr error
ip, retryErr = az.getIPForMachine(name)
if retryErr != nil {
glog.Errorf("backoff: failure, will retry,err=%v", retryErr)
return false, nil
}
glog.V(2).Infof("backoff: success")
return true, nil
})
return ip, err
}
// CreateOrUpdateSGWithRetry invokes az.SecurityGroupsClient.CreateOrUpdate with exponential backoff retry
func (az *Cloud) CreateOrUpdateSGWithRetry(sg network.SecurityGroup) error {
return wait.ExponentialBackoff(az.resourceRequestBackoff, func() (bool, error) {

13
pkg/cloudprovider/providers/azure/azure_instances.go
View File

@ -41,8 +41,17 @@ func (az *Cloud) NodeAddresses(name types.NodeName) ([]v1.NodeAddress, error) {
}
ip, err := az.getIPForMachine(name)
if err != nil {
glog.Errorf("error: az.NodeAddresses, az.getIPForMachine(%s), err=%v", name, err)
return nil, err
if az.CloudProviderBackoff {
glog.V(2).Infof("NodeAddresses(%s) backing off", name)
ip, err = az.GetIPForMachineWithRetry(name)
if err != nil {
glog.V(2).Infof("NodeAddresses(%s) abort backoff", name)
return nil, err
}
} else {
glog.Errorf("error: az.NodeAddresses, az.getIPForMachine(%s), err=%v", name, err)
return nil, err
}
}
return []v1.NodeAddress{

1
pkg/cloudprovider/providers/azure/azure_util.go
View File

@ -249,6 +249,7 @@ outer:
}
func (az *Cloud) getIPForMachine(nodeName types.NodeName) (string, error) {
az.operationPollRateLimiter.Accept()
machine, exists, err := az.getVirtualMachine(nodeName)
if !exists {
return "", cloudprovider.InstanceNotFound