fix: gc not exist node error

```bash failed to list static route , ovn-nbctl: nexthop=: argument does not end in ... followed by a value ```
kubeovn · Mar 2, 2021 · 08b95e7 · 08b95e7
1 parent 8bd4460
commit 08b95e7
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/pkg/ovs/ovn-nbctl.go b/pkg/ovs/ovn-nbctl.go
@@ -589,6 +589,9 @@ func (c Client) DeleteStaticRoute(cidr, router string) error {
 }
 
 func (c Client) DeleteStaticRouteByNextHop(nextHop string) error {
+	if nextHop == "" {
+		return nil
+	}
 	output, err := c.ovnNbCommand("--format=csv", "--no-heading", "--data=bare", "--columns=ip_prefix", "find", "Logical_Router_Static_Route", fmt.Sprintf("nexthop=%s", nextHop))
 	if err != nil {
 		klog.Errorf("failed to list static route %s, %v", nextHop, err)