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tape restore: verify if all chunks exist

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This commit is contained in:
Dietmar Maurer
2021-04-16 12:20:44 +02:00
parent 5e4d81e957
commit 1369bcdbba
2 changed files with 24 additions and 3 deletions
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8
src/api2/tape/restore.rs
View File

@ -516,7 +516,7 @@ fn restore_archive<'a>(
if is_new {
task_log!(worker, "restore snapshot {}", backup_dir);
match restore_snapshot_archive(worker, reader, &path) {
match restore_snapshot_archive(worker, reader, &path, &datastore) {
Err(err) => {
std::fs::remove_dir_all(&path)?;
bail!("restore snapshot {} failed - {}", backup_dir, err);
@ -667,10 +667,11 @@ fn restore_snapshot_archive<'a>(
worker: &WorkerTask,
reader: Box<dyn 'a + TapeRead>,
snapshot_path: &Path,
datastore: &DataStore,
) -> Result<bool, Error> {
let mut decoder = pxar::decoder::sync::Decoder::from_std(reader)?;
match try_restore_snapshot_archive(worker, &mut decoder, snapshot_path) {
match try_restore_snapshot_archive(worker, &mut decoder, snapshot_path, datastore) {
Ok(()) => Ok(true),
Err(err) => {
let reader = decoder.input();
@ -695,6 +696,7 @@ fn try_restore_snapshot_archive<R: pxar::decoder::SeqRead>(
worker: &WorkerTask,
decoder: &mut pxar::decoder::sync::Decoder<R>,
snapshot_path: &Path,
datastore: &DataStore,
) -> Result<(), Error> {
let _root = match decoder.next() {
@ -785,11 +787,13 @@ fn try_restore_snapshot_archive<R: pxar::decoder::SeqRead>(
let index = DynamicIndexReader::open(&archive_path)?;
let (csum, size) = index.compute_csum();
manifest.verify_file(&item.filename, &csum, size)?;
datastore.fast_index_verification(&index)?;
}
ArchiveType::FixedIndex => {
let index = FixedIndexReader::open(&archive_path)?;
let (csum, size) = index.compute_csum();
manifest.verify_file(&item.filename, &csum, size)?;
datastore.fast_index_verification(&index)?;
}
ArchiveType::Blob => {
let mut tmpfile = std::fs::File::open(&archive_path)?;

19
src/backup/datastore.rs
View File

@ -153,6 +153,24 @@ impl DataStore {
Ok(out)
}
/// Fast index verification - only check if chunks exists
pub fn fast_index_verification(&self, index: &dyn IndexFile) -> Result<(), Error> {
for pos in 0..index.index_count() {
let info = index.chunk_info(pos).unwrap();
self.stat_chunk(&info.digest).
map_err(|err| {
format_err!(
"fast_index_verification error, stat_chunk {} failed - {}",
proxmox::tools::digest_to_hex(&info.digest),
err,
)
})?;
}
Ok(())
}
pub fn name(&self) -> &str {
self.chunk_store.name()
}
@ -786,4 +804,3 @@ impl DataStore {
self.verify_new
}
}