[GitHub] cloudstack pull request #914: BUG-ID CLOUDSTACK-8939 VM Snapshot size with m...

[sudhansu7 <gi...@git.apache.org>]

Github user sudhansu7 commented on a diff in the pull request:

    https://github.com/apache/cloudstack/pull/914#discussion_r90809764
  
    --- Diff: plugins/hypervisors/xenserver/src/com/cloud/hypervisor/xenserver/resource/CitrixResourceBase.java ---
    @@ -3206,25 +3206,33 @@ public long getVMSnapshotChainSize(final Connection conn, final VolumeObjectTO v
                 }
             }
             if (volumeTo.getVolumeType() == Volume.Type.ROOT) {
    -            final Map<VM, VM.Record> allVMs = VM.getAllRecords(conn);
    -            // add size of memory snapshot vdi
    -            if (allVMs != null && allVMs.size() > 0) {
    -                for (final VM vmr : allVMs.keySet()) {
    -                    try {
    -                        final String vName = vmr.getNameLabel(conn);
    -                        if (vName != null && vName.contains(vmName) && vmr.getIsASnapshot(conn)) {
    -                            final VDI memoryVDI = vmr.getSuspendVDI(conn);
    -                            if (!isRefNull(memoryVDI)) {
    -                                size = size + memoryVDI.getPhysicalUtilisation(conn);
    -                                final VDI pMemoryVDI = memoryVDI.getParent(conn);
    -                                if (!isRefNull(pMemoryVDI)) {
    -                                    size = size + pMemoryVDI.getPhysicalUtilisation(conn);
    +            VM vm = getVM(conn, vmName);
    --- End diff --
    
    @yvsubhash  getVm() raises CloudRuntimeException if Vm is not found. 
    
    Scenario:
    
        Deploy a vm and ensure its in running state.
        Take a VM snapshot ( either disk or disk + memory ) for VM.
        After snapshot operation is sucessful , destroy the VM.
    
    Observation :
    
        VM destroy Fails with reason VM with name: i-2-7-VM does not exist.
        SNapshot moves to Expunging state , and VM moves to stopped state.
    
    Solution : Place your changes within a try.. catch block



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