1 use std
::collections
::HashSet
;
2 use std
::sync
::{Arc, Mutex}
;
3 use std
::sync
::atomic
::{Ordering, AtomicUsize}
;
4 use std
::time
::Instant
;
6 use anyhow
::{bail, format_err, Error}
;
11 tools
::ParallelHandler
,
26 fn verify_blob(datastore
: Arc
<DataStore
>, backup_dir
: &BackupDir
, info
: &FileInfo
) -> Result
<(), Error
> {
28 let blob
= datastore
.load_blob(backup_dir
, &info
.filename
)?
;
30 let raw_size
= blob
.raw_size();
31 if raw_size
!= info
.size
{
32 bail
!("wrong size ({} != {})", info
.size
, raw_size
);
35 let csum
= openssl
::sha
::sha256(blob
.raw_data());
36 if csum
!= info
.csum
{
37 bail
!("wrong index checksum");
40 match blob
.crypt_mode()?
{
41 CryptMode
::Encrypt
=> Ok(()),
43 // digest already verified above
44 blob
.decode(None
, None
)?
;
47 CryptMode
::SignOnly
=> bail
!("Invalid CryptMode for blob"),
51 fn rename_corrupted_chunk(
52 datastore
: Arc
<DataStore
>,
54 worker
: Arc
<WorkerTask
>,
56 let (path
, digest_str
) = datastore
.chunk_path(digest
);
59 let mut new_path
= path
.clone();
61 new_path
.set_file_name(format
!("{}.{}.bad", digest_str
, counter
));
62 if new_path
.exists() && counter
< 9 { counter += 1; }
else { break; }
65 match std
::fs
::rename(&path
, &new_path
) {
67 worker
.log(format
!("corrupted chunk renamed to {:?}", &new_path
));
71 std
::io
::ErrorKind
::NotFound
=> { /* ignored */ }
,
72 _
=> worker
.log(format
!("could not rename corrupted chunk {:?} - {}", &path
, err
))
78 fn verify_index_chunks(
79 datastore
: Arc
<DataStore
>,
80 index
: Box
<dyn IndexFile
+ Send
>,
81 verified_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
82 corrupt_chunks
: Arc
<Mutex
<HashSet
<[u8; 32]>>>,
83 crypt_mode
: CryptMode
,
84 worker
: Arc
<WorkerTask
>,
85 ) -> Result
<(), Error
> {
87 let errors
= AtomicUsize
::new(0);
89 let start_time
= Instant
::now();
91 let mut read_bytes
= 0;
92 let mut decoded_bytes
= 0;
94 let worker2
= Arc
::clone(&worker
);
95 let datastore2
= Arc
::clone(&datastore
);
96 let corrupt_chunks2
= Arc
::clone(&corrupt_chunks
);
97 let verified_chunks2
= Arc
::clone(&verified_chunks
);
98 let errors2
= &errors
;
100 let decoder_pool
= ParallelHandler
::new(
101 "verify chunk decoder", 4,
102 move |(chunk
, digest
, size
): (DataBlob
, [u8;32], u64)| {
103 let chunk_crypt_mode
= match chunk
.crypt_mode() {
105 corrupt_chunks2
.lock().unwrap().insert(digest
);
106 worker2
.log(format
!("can't verify chunk, unknown CryptMode - {}", err
));
107 errors2
.fetch_add(1, Ordering
::SeqCst
);
113 if chunk_crypt_mode
!= crypt_mode
{
115 "chunk CryptMode {:?} does not match index CryptMode {:?}",
119 errors2
.fetch_add(1, Ordering
::SeqCst
);
122 if let Err(err
) = chunk
.verify_unencrypted(size
as usize, &digest
) {
123 corrupt_chunks2
.lock().unwrap().insert(digest
);
124 worker2
.log(format
!("{}", err
));
125 errors2
.fetch_add(1, Ordering
::SeqCst
);
126 rename_corrupted_chunk(datastore2
.clone(), &digest
, worker2
.clone());
128 verified_chunks2
.lock().unwrap().insert(digest
);
135 for pos
in 0..index
.index_count() {
137 worker
.fail_on_abort()?
;
138 crate::tools
::fail_on_shutdown()?
;
140 let info
= index
.chunk_info(pos
).unwrap();
141 let size
= info
.size();
143 if verified_chunks
.lock().unwrap().contains(&info
.digest
) {
144 continue; // already verified
147 if corrupt_chunks
.lock().unwrap().contains(&info
.digest
) {
148 let digest_str
= proxmox
::tools
::digest_to_hex(&info
.digest
);
149 worker
.log(format
!("chunk {} was marked as corrupt", digest_str
));
150 errors
.fetch_add(1, Ordering
::SeqCst
);
154 match datastore
.load_chunk(&info
.digest
) {
156 corrupt_chunks
.lock().unwrap().insert(info
.digest
);
157 worker
.log(format
!("can't verify chunk, load failed - {}", err
));
158 errors
.fetch_add(1, Ordering
::SeqCst
);
159 rename_corrupted_chunk(datastore
.clone(), &info
.digest
, worker
.clone());
163 read_bytes
+= chunk
.raw_size();
164 decoder_pool
.send((chunk
, info
.digest
, size
))?
;
165 decoded_bytes
+= size
;
170 decoder_pool
.complete()?
;
172 let elapsed
= start_time
.elapsed().as_secs_f64();
174 let read_bytes_mib
= (read_bytes
as f64)/(1024.0*1024.0);
175 let decoded_bytes_mib
= (decoded_bytes
as f64)/(1024.0*1024.0);
177 let read_speed
= read_bytes_mib
/elapsed
;
178 let decode_speed
= decoded_bytes_mib
/elapsed
;
180 let error_count
= errors
.load(Ordering
::SeqCst
);
182 worker
.log(format
!(" verified {:.2}/{:.2} MiB in {:.2} seconds, speed {:.2}/{:.2} MiB/s ({} errors)",
183 read_bytes_mib
, decoded_bytes_mib
, elapsed
, read_speed
, decode_speed
, error_count
));
185 if errors
.load(Ordering
::SeqCst
) > 0 {
186 bail
!("chunks could not be verified");
192 fn verify_fixed_index(
193 datastore
: Arc
<DataStore
>,
194 backup_dir
: &BackupDir
,
196 verified_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
197 corrupt_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
198 worker
: Arc
<WorkerTask
>,
199 ) -> Result
<(), Error
> {
201 let mut path
= backup_dir
.relative_path();
202 path
.push(&info
.filename
);
204 let index
= datastore
.open_fixed_reader(&path
)?
;
206 let (csum
, size
) = index
.compute_csum();
207 if size
!= info
.size
{
208 bail
!("wrong size ({} != {})", info
.size
, size
);
211 if csum
!= info
.csum
{
212 bail
!("wrong index checksum");
215 verify_index_chunks(datastore
, Box
::new(index
), verified_chunks
, corrupt_chunks
, info
.chunk_crypt_mode(), worker
)
218 fn verify_dynamic_index(
219 datastore
: Arc
<DataStore
>,
220 backup_dir
: &BackupDir
,
222 verified_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
223 corrupt_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
224 worker
: Arc
<WorkerTask
>,
225 ) -> Result
<(), Error
> {
227 let mut path
= backup_dir
.relative_path();
228 path
.push(&info
.filename
);
230 let index
= datastore
.open_dynamic_reader(&path
)?
;
232 let (csum
, size
) = index
.compute_csum();
233 if size
!= info
.size
{
234 bail
!("wrong size ({} != {})", info
.size
, size
);
237 if csum
!= info
.csum
{
238 bail
!("wrong index checksum");
241 verify_index_chunks(datastore
, Box
::new(index
), verified_chunks
, corrupt_chunks
, info
.chunk_crypt_mode(), worker
)
244 /// Verify a single backup snapshot
246 /// This checks all archives inside a backup snapshot.
247 /// Errors are logged to the worker log.
250 /// - Ok(true) if verify is successful
251 /// - Ok(false) if there were verification errors
252 /// - Err(_) if task was aborted
253 pub fn verify_backup_dir(
254 datastore
: Arc
<DataStore
>,
255 backup_dir
: &BackupDir
,
256 verified_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
257 corrupt_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
258 worker
: Arc
<WorkerTask
>
259 ) -> Result
<bool
, Error
> {
261 let mut manifest
= match datastore
.load_manifest(&backup_dir
) {
262 Ok((manifest
, _
)) => manifest
,
264 worker
.log(format
!("verify {}:{} - manifest load error: {}", datastore
.name(), backup_dir
, err
));
269 worker
.log(format
!("verify {}:{}", datastore
.name(), backup_dir
));
271 let mut error_count
= 0;
273 let mut verify_result
= VerifyState
::Ok
;
274 for info
in manifest
.files() {
275 let result
= proxmox
::try_block
!({
276 worker
.log(format
!(" check {}", info
.filename
));
277 match archive_type(&info
.filename
)?
{
278 ArchiveType
::FixedIndex
=>
283 verified_chunks
.clone(),
284 corrupt_chunks
.clone(),
287 ArchiveType
::DynamicIndex
=>
288 verify_dynamic_index(
292 verified_chunks
.clone(),
293 corrupt_chunks
.clone(),
296 ArchiveType
::Blob
=> verify_blob(datastore
.clone(), &backup_dir
, info
),
300 worker
.fail_on_abort()?
;
301 crate::tools
::fail_on_shutdown()?
;
303 if let Err(err
) = result
{
304 worker
.log(format
!("verify {}:{}/{} failed: {}", datastore
.name(), backup_dir
, info
.filename
, err
));
306 verify_result
= VerifyState
::Failed
;
311 let verify_state
= SnapshotVerifyState
{
312 state
: verify_result
,
313 upid
: worker
.upid().clone(),
315 manifest
.unprotected
["verify_state"] = serde_json
::to_value(verify_state
)?
;
316 datastore
.store_manifest(&backup_dir
, serde_json
::to_value(manifest
)?
)
317 .map_err(|err
| format_err
!("unable to store manifest blob - {}", err
))?
;
322 /// Verify all backups inside a backup group
324 /// Errors are logged to the worker log.
327 /// - Ok((count, failed_dirs)) where failed_dirs had verification errors
328 /// - Err(_) if task was aborted
329 pub fn verify_backup_group(
330 datastore
: Arc
<DataStore
>,
332 verified_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
333 corrupt_chunks
: Arc
<Mutex
<HashSet
<[u8;32]>>>,
334 progress
: Option
<(usize, usize)>, // (done, snapshot_count)
335 worker
: Arc
<WorkerTask
>,
336 ) -> Result
<(usize, Vec
<String
>), Error
> {
338 let mut errors
= Vec
::new();
339 let mut list
= match group
.list_backups(&datastore
.base_path()) {
342 worker
.log(format
!("verify group {}:{} - unable to list backups: {}", datastore
.name(), group
, err
));
343 return Ok((0, errors
));
347 worker
.log(format
!("verify group {}:{}", datastore
.name(), group
));
349 let (done
, snapshot_count
) = progress
.unwrap_or((0, list
.len()));
352 BackupInfo
::sort_list(&mut list
, false); // newest first
355 if !verify_backup_dir(datastore
.clone(), &info
.backup_dir
, verified_chunks
.clone(), corrupt_chunks
.clone(), worker
.clone())?
{
356 errors
.push(info
.backup_dir
.to_string());
358 if snapshot_count
!= 0 {
359 let pos
= done
+ count
;
360 let percentage
= ((pos
as f64) * 100.0)/(snapshot_count
as f64);
361 worker
.log(format
!("percentage done: {:.2}% ({} of {} snapshots)", percentage
, pos
, snapshot_count
));
368 /// Verify all backups inside a datastore
370 /// Errors are logged to the worker log.
373 /// - Ok(failed_dirs) where failed_dirs had verification errors
374 /// - Err(_) if task was aborted
375 pub fn verify_all_backups(datastore
: Arc
<DataStore
>, worker
: Arc
<WorkerTask
>) -> Result
<Vec
<String
>, Error
> {
377 let mut errors
= Vec
::new();
379 let mut list
= match BackupGroup
::list_groups(&datastore
.base_path()) {
382 .filter(|group
| !(group
.backup_type() == "host" && group
.backup_id() == "benchmark"))
383 .collect
::<Vec
<BackupGroup
>>(),
385 worker
.log(format
!("verify datastore {} - unable to list backups: {}", datastore
.name(), err
));
390 list
.sort_unstable();
392 let mut snapshot_count
= 0;
393 for group
in list
.iter() {
394 snapshot_count
+= group
.list_backups(&datastore
.base_path())?
.len();
397 // start with 16384 chunks (up to 65GB)
398 let verified_chunks
= Arc
::new(Mutex
::new(HashSet
::with_capacity(1024*16)));
400 // start with 64 chunks since we assume there are few corrupt ones
401 let corrupt_chunks
= Arc
::new(Mutex
::new(HashSet
::with_capacity(64)));
403 worker
.log(format
!("verify datastore {} ({} snapshots)", datastore
.name(), snapshot_count
));
407 let (count
, mut group_errors
) = verify_backup_group(
410 verified_chunks
.clone(),
411 corrupt_chunks
.clone(),
412 Some((done
, snapshot_count
)),
415 errors
.append(&mut group_errors
);