shwstppr commented on code in PR #7360:
URL: https://github.com/apache/cloudstack/pull/7360#discussion_r1161501890


##########
engine/orchestration/src/main/java/org/apache/cloudstack/engine/orchestration/NetworkOrchestrator.java:
##########
@@ -1811,20 +1812,32 @@ public void finalizeUpdateInSequence(Network network, 
boolean success) {
 
     @Override
     public void setHypervisorHostname(VirtualMachineProfile vm, 
DeployDestination dest, boolean migrationSuccessful) throws 
ResourceUnavailableException {
-        final List<NicVO> nics = _nicDao.listByVmId(vm.getId());
-        for (final NicVO nic : nics) {
-            final NetworkVO network = 
_networksDao.findById(nic.getNetworkId());
-            final Integer networkRate = 
_networkModel.getNetworkRate(network.getId(), vm.getId());
-            final NicProfile profile = new NicProfile(nic, network, 
nic.getBroadcastUri(), nic.getIsolationUri(), networkRate, 
_networkModel.isSecurityGroupSupportedInNetwork(network),
-                    _networkModel.getNetworkTag(vm.getHypervisorType(), 
network));
-            for (final NetworkElement element : networkElements) {
-                if 
(_networkModel.areServicesSupportedInNetwork(network.getId(), Service.UserData) 
&& element instanceof UserDataServiceProvider) {
-                    if (element instanceof ConfigDriveNetworkElement && 
!migrationSuccessful || element instanceof VirtualRouterElement && 
migrationSuccessful) {
-                        final UserDataServiceProvider sp = 
(UserDataServiceProvider) element;
-                        if (!sp.saveHypervisorHostname(profile, network, vm, 
dest)) {
-                            throw new CloudRuntimeException("Failed to Add 
hypervisor hostname");
-                        }
+        String hypervisorHostName = 
VirtualMachineManager.getHypervisorHostname(dest.getHost().getName());
+        if (StringUtils.isNotEmpty(hypervisorHostName)) {
+            final List<NicVO> nics = _nicDao.listByVmId(vm.getId());
+            for (final NicVO nic : nics) {
+                final NetworkVO network = 
_networksDao.findById(nic.getNetworkId());
+                final Integer networkRate = 
_networkModel.getNetworkRate(network.getId(), vm.getId());
+                final NicProfile profile = new NicProfile(nic, network, 
nic.getBroadcastUri(), nic.getIsolationUri(), networkRate, 
_networkModel.isSecurityGroupSupportedInNetwork(network),
+                        _networkModel.getNetworkTag(vm.getHypervisorType(), 
network));
+                setHypervisorHostnameInNetwork(vm, dest, network, profile, 
migrationSuccessful);
+            }
+        }
+    }
+
+    private void setHypervisorHostnameInNetwork(VirtualMachineProfile vm, 
DeployDestination dest, Network network, NicProfile profile, boolean 
migrationSuccessful) {
+        for (final NetworkElement element : networkElements) {
+            if (_networkModel.areServicesSupportedInNetwork(network.getId(), 
Service.UserData) && element instanceof UserDataServiceProvider

Review Comment:
   minor: @harikrishna-patnala do we really need to check for `element 
instanceof UserDataServiceProvider` when we are checking for 
ConfigDriveNetworkElement and VirtualRouterElement, both of which implement 
UserDataServiceProvider?



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