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fix(restore): preserve versions across cleanup and failed reads

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Reject replacement markers and legacy objects before restored-copy cleanup
can mutate their type or data. Prevent restore lookups and failure cleanup
from purging dangling versions, preserve Transition on metadata rereads,
and return without writing when the initial restore read fails.

Add real-disk regressions for stale null tasks, minority metadata, initial
and cleanup read failures, and stored marker/legacy types. Keep ordinary
dangling cleanup and marker purge as positive controls.

Signed-off-by: Feng Ruohang <rh@vonng.com>
This commit is contained in:
Feng Ruohang
2026-11-03 22:32:33 +08:00
parent e7103d77cb
commit 8579466557
4 changed files with 318 additions and 12 deletions
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cmd/xl-storage.go
+3
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@@ -1371,6 +1371,9 @@ func (s *xlStorage) DeleteVersion(ctx context.Context, volume, path string, fi F
}
if legacyJSON {
if fi.ExpireRestored {
return nil // Legacy objects cannot contain a completed transition.
}
// Delete the meta file, if there are no more versions the
// top level parent is automatically removed.
return s.deleteFile(volumeDir, pathJoin(volumeDir, path), true, false)