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Fix issue when restoring backup after migration of volume #12549

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Fix issue when restoring backup after migration of volume #12549

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2 changes: 1 addition & 1 deletion plugins/backup/nas/src/main/java/org/apache/cloudstack/backup/NASBackupProvider.java
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Original file line number Diff line number Diff line change
Expand Up @@ -215,7 +215,7 @@ private BackupVO createBackupObject(VirtualMachine vm, String backupPath) {
public boolean restoreVMFromBackup(VirtualMachine vm, Backup backup) {
List<Backup.VolumeInfo> backedVolumes = backup.getBackedUpVolumes();
List<VolumeVO> volumes = backedVolumes.stream()
.map(volume -> volumeDao.findByUuid(volume.getUuid()))
.map(volume -> volumeDao.findByUuid(volume.getPath()))
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@sureshanaparti sureshanaparti Jan 29, 2026

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the new uuid or path after migration needs to be updated in the backed-up volumes metadata if any backups existing for them? any case path might also change?

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@Pearl1594 Pearl1594 Jan 29, 2026 •
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The new UUID / path for the backed up volume doesn't need to be updated as the uuid - points to the volume UUID - which is always the same on subsequent backups, and the path points to the backup path - which shouldn't vary even if volume is migrated. I don't see the path of the backup changing.

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@sureshanaparti sureshanaparti Jan 30, 2026

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Suggested change
.map(volume -> volumeDao.findByUuid(volume.getPath()))
.map(backedVolumeInfo -> volumeDao.findByUuid(backedVolumeInfo.getPath()))

it's better change to backedVolumeInfo to avoid confusion.

@Pearl1594 Correct, path of the backup doesn't change. I mean, the volume path after migration might change as the volume is checked by its backed up path (which is before migration). cc @abh1sar

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@abh1sar abh1sar Jan 30, 2026

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volumeDao.findByUuid() should take volume.getUuid() as an argument not path.

Volume paths are actually set in restoreCommand.setVolumePaths(getVolumePaths(volumes));
which is getting the path from volume.getPath().
So, ideally it should work as is. Can you check?

The bug is obvious in Restore single volume code restoreCommand.setVolumePaths(Collections.singletonList(String.format("%s/%s", dataStore.getLocalPath(), volumeUUID)));
-- here we should use the volume path not uuid

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@Pearl1594 Pearl1594 Jan 30, 2026

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my bad - I did the test / changes and 4.22 but made the wrong change on 4.20 - I meant to change this: to getPath from getUUID() - https://github.com/apache/cloudstack/blob/4.22/plugins/backup/nas/src/main/java/org/apache/cloudstack/backup/NASBackupProvider.java#L295
I'll fix it.

.sorted((v1, v2) -> Long.compare(v1.getDeviceId(), v2.getDeviceId()))
.collect(Collectors.toList());

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