Damans227 commented on code in PR #13922:
URL: https://github.com/apache/cloudstack/pull/13922#discussion_r4260943714
##########
plugins/hypervisors/kvm/src/main/java/com/cloud/hypervisor/kvm/resource/wrapper/LibvirtRestoreBackupCommandWrapper.java:
##########
@@ -127,11 +129,38 @@ private void
restoreVolumesOfExistingVM(KVMStoragePoolManager storagePoolMgr, Li
String backupPath, List<String>
backupFiles, String mountDirectory, int timeout, Integer mountTimeout) {
String diskType = "root";
try {
- for (int idx = 0; idx < restoreVolumePaths.size(); idx++) {
- PrimaryDataStoreTO restoreVolumePool =
restoreVolumePools.get(idx);
- String restoreVolumePath = restoreVolumePaths.get(idx);
- String backupFile = backupFiles.get(idx);
+ // Match each backed up volume to the instance's volume with the
SAME UUID. Both lists
+ // arrive ordered by device id, but device ids are not stable
across restores, so relying
+ // on the position within the list can write a backup into a
different volume than the one
+ // it was taken from.
+ Map<String, Integer> targetIndexByVolumeUuid = new HashMap<>();
+ for (int i = 0; i < restoreVolumePaths.size(); i++) {
+
targetIndexByVolumeUuid.put(getVolumeUuidFromPath(restoreVolumePaths.get(i),
restoreVolumePools.get(i)), i);
Review Comment:
that covers it, thanks
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