[GitHub] [cloudstack] rhtyd commented on a change in pull request #3218: [WIP DO NOT MERGE] vmware: don't use redundant worker VM to extract volume

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rhtyd commented on a change in pull request #3218: [WIP DO NOT MERGE] vmware: don't use redundant worker VM to extract volume
URL: https://github.com/apache/cloudstack/pull/3218#discussion_r286851911
 
 

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 File path: plugins/hypervisors/vmware/src/main/java/com/cloud/hypervisor/vmware/manager/VmwareStorageManagerImpl.java
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 @@ -961,16 +961,19 @@ private void exportVolumeToSecondaryStroage(VirtualMachineMO vmMo, String volume
                 throw new Exception(msg);
             }
 
-            // 4 MB is the minimum requirement for VM memory in VMware
-            vmMo.cloneFromCurrentSnapshot(workerVmName, 0, 4, volumeDeviceInfo.second(), VmwareHelper.getDiskDeviceDatastore(volumeDeviceInfo.first()));
-            clonedVm = vmMo.getRunningHost().findVmOnHyperHost(workerVmName);
-            if (clonedVm == null) {
-                String msg = "Unable to create dummy VM to export volume. volume path: " + volumePath;
-                s_logger.error(msg);
-                throw new Exception(msg);
+            if (clonedWorkerVMNeeded) {
+                // 4 MB is the minimum requirement for VM memory in VMware
+                vmMo.cloneFromCurrentSnapshot(workerVmName, 0, 4, volumeDeviceInfo.second(), VmwareHelper.getDiskDeviceDatastore(volumeDeviceInfo.first()));
+                clonedVm = vmMo.getRunningHost().findVmOnHyperHost(workerVmName);
+                if (clonedVm == null) {
+                    String msg = "Unable to create dummy VM to export volume. volume path: " + volumePath;
+                    s_logger.error(msg);
+                    throw new Exception(msg);
+                }
+                clonedVm.exportVm(exportPath, exportName, false, false);  //Note: volss: not to create ova.
 
 Review comment:
   It's because, if we need to clone i.e. require a worker VM `clonedVm`, then in finally we need to detach and destroy that worker VM. This is why we cannot refactor them to use a single variable.

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