Commit graph

6294 commits

Author SHA1 Message Date
Michael Eischer
d0668b695d Remove unnecessary context.WithCancel calls
The gopts.ctx is cancelled when the main() method of restic exits.
2022-10-03 00:19:46 +02:00
Michael Eischer
7ce4cb7908
Merge pull request #3947 from MichaelEischer/fix-cache-verify-test
cache: Fix file descriptor leak in TestBackendRemoveBroken
2022-10-03 00:19:26 +02:00
Michael Eischer
430ab32941 cache: Fix file descriptor leak in TestBackendRemoveBroken 2022-10-03 00:06:44 +02:00
Michael Eischer
e99ad39b34
Merge pull request #2750 from metalsp0rk/min-packsize
Add `backup --file-read-concurrency` flag
2022-10-02 23:11:47 +02:00
Michael Eischer
2e606ca70b backup: rework read concurrency 2022-10-02 22:55:14 +02:00
Kyle Brennan
4a501d7118 backup: add option for file read concurrency 2022-10-02 22:51:45 +02:00
Michael Eischer
9ec7eee803
Merge pull request #3521 from MichaelEischer/redownload-broken-files
Redownload files with wrong hash
2022-10-02 22:50:03 +02:00
Michael Eischer
b25d0773b6
Merge pull request #3944 from MichaelEischer/fix-linter-errors
CI: ignore warning about missing package comment
2022-09-27 21:41:55 +02:00
Michael Eischer
5265550ff3 CI: ignore warning about missing package comment 2022-09-27 21:31:37 +02:00
Michael Eischer
e89fc2a29d
Merge pull request #3943 from MichaelEischer/find-match-only-valid-ids
ignore filenames which are not IDs when expanding a prefix
2022-09-27 20:56:48 +02:00
Michael Eischer
67e4620cd6
Merge pull request #3938 from restic/errdot
rclone/sftp: Improve handling of ErrDot errors
2022-09-27 20:33:42 +02:00
Michael Eischer
5d3c5b9e50 restic: ignore filenames which are not IDs when expanding a prefix
Some backends generate additional files for each existing file, e.g.

1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef
1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef.sha256

For some commands this leads to an "multiple IDs with prefix" error when
trying to reference a snapshot.
2022-09-27 20:30:40 +02:00
Leo R. Lundgren
ebe9f2c969 rclone/sftp: Improve handling of ErrDot errors
Restic now yields a more informative error message when exec.ErrDot occurs.
2022-09-25 16:19:03 +02:00
Michael Eischer
d114e483c4 Add changelog for corrupt data downloads 2022-09-25 11:55:09 +02:00
Michael Eischer
34c1a83340 cache: Drop cache entry if it cannot be processed
Failing to process data requested from the cache usually indicates a
problem with the returned data. Assume that the cache entry is somehow
damaged and retry downloading it once.
2022-09-25 11:55:09 +02:00
Michael Eischer
aa3b1925b4 cache: Simplify loadFromCacheOrDelegate 2022-09-25 11:35:35 +02:00
Michael Eischer
5c6b6edefe retry index, lock and snapshot loading on hash mismatch 2022-09-25 11:35:35 +02:00
Michael Eischer
822422ef03 retry key loading on hash mismatch 2022-09-25 11:35:35 +02:00
Michael Eischer
d6575f53ca
Merge pull request #3942 from MichaelEischer/split-cross-compile-test
Split cross compile test
2022-09-24 22:27:08 +02:00
Michael Eischer
78d2312ee9
Merge pull request #3854 from MichaelEischer/sparsefiles
restore: Add support for sparse files
2022-09-24 22:04:02 +02:00
Michael Eischer
46b30b9826 split cross compilation into three parts
The cross compilation tasks are currently the slowest part of the CI
runs. Splitting it into three parts should reduce its time to roughly
that of the windows CI run.
2022-09-24 22:00:25 +02:00
Michael Eischer
bd191ec60b update golang-ci to version 1.49 2022-09-24 22:00:08 +02:00
Michael Eischer
519059cca4 update ci actions 2022-09-24 21:59:36 +02:00
Michael Eischer
19afad8a09 restore: support sparse restores also on windows 2022-09-24 21:39:39 +02:00
Michael Eischer
0f89f443c7 update sparse restore changelog 2022-09-24 21:39:39 +02:00
Michael Eischer
c147422ba5 repository: special case SaveBlob for all zero chunks
Sparse files contain large regions containing only zero bytes. Checking
that a blob only contains zeros is possible with over 100GB/s for modern
x86 CPUs. Calculating sha256 hashes is only possible with 500MB/s (or
2GB/s using hardware acceleration). Thus we can speed up the hash
calculation for all zero blobs (which always have length
chunker.MinSize) by checking for zero bytes and then using the
precomputed hash.

The all zeros check is only performed for blobs with the minimal chunk
size, and thus should add no overhead most of the time. For chunks which
are not all zero but have the minimal chunks size, the overhead will be
below 2% based on the above performance numbers.

This allows reading sparse sections of files as fast as the kernel can
return data to us. On my system using BTRFS this resulted in about
4GB/s.
2022-09-24 21:39:39 +02:00
Michael Eischer
34fe1362da restorer: move zeroPrefixLen to restic package 2022-09-24 21:39:39 +02:00
Michael Eischer
a5ebd5de4b restorer: Fix race condition in partialFile.WriteAt
The restorer can issue multiple calls to WriteAt in parallel. This can
result in unexpected orderings of the Truncate and WriteAt calls and
sometimes too short restored files.
2022-09-24 21:39:39 +02:00
Michael Eischer
5b6a77058a Enable sparseness only conditionally
We can either preallocate storage for a file or sparsify it. This
detects a pack file as sparse if it contains an all zero block or
consists of only one block. As the file sparsification is just an
approximation, hide it behind a `--sparse` parameter.
2022-09-24 21:20:00 +02:00
greatroar
3047bf611c Changelog entry for sparse file restoring 2022-09-24 21:18:48 +02:00
greatroar
5d4568d393 Write sparse files in restorer
This writes files by using (*os.File).Truncate, which resolves to the
truncate system call on Unix.

Compared to the naive loop,

	for _, b := range p {
		if b != 0 {
			return false
		}
	}

the optimized allZero is about 10× faster:

name       old time/op    new time/op     delta
AllZero-8    1.09ms ± 1%     0.09ms ± 1%    -92.10%  (p=0.000 n=10+10)

name       old speed      new speed       delta
AllZero-8  3.84GB/s ± 1%  48.59GB/s ± 1%  +1166.51%  (p=0.000 n=10+10)
2022-09-24 21:18:48 +02:00
Michael Eischer
eb83402d39
Merge pull request #3935 from miles170/master
Only display the message if there were locks to be removed
2022-09-24 20:53:13 +02:00
Michael Eischer
ef58ddd7b1
Merge pull request #3923 from MichaelEischer/fix-flaky-cache-test
cache: fix flaky TestFileSaveConcurrent on windows
2022-09-24 20:52:55 +02:00
Michael Eischer
7fc178aaf4 internal/cache: extend description of cache sharing test failure 2022-09-24 13:07:01 +02:00
Miles Liu
1acbda18f8
Only display the message if there were locks to be removed
`restic unlock` now only shows `successfully removed locks` if there were locks to be removed.
In addition, it also reports the number of the removed lock files.
2022-09-24 19:02:24 +08:00
Michael Eischer
da1a359c8b
Merge pull request #3927 from MichaelEischer/faster-index-each
Speed up MasterIndex.Each
2022-09-24 12:35:23 +02:00
Michael Eischer
041a51512a
Merge pull request #3780 from jkmw/fix/2578
Remove existing path before restoring a symlink
2022-09-24 12:34:42 +02:00
Michael Eischer
1ebd57247a repository: optimize MasterIndex.Each
Sending data through a channel at very high frequency is extremely
inefficient. Thus use simple callbacks instead of channels.

> name                old time/op  new time/op  delta
> MasterIndexEach-16   6.68s ±24%   0.96s ± 2%  -85.64%  (p=0.008 n=5+5)
2022-09-24 12:21:59 +02:00
Michael Eischer
825b95e313 repository: add benchmark for MasterIndex.Each 2022-09-24 12:21:59 +02:00
greatroar
1220fe9650 internal/cache: Concurrent use of cache not working on Windows 2022-09-17 19:49:44 +02:00
Jerome Küttner
ef618bdd3f use os.Remove if path already exists on symlink restore 2022-09-14 08:14:31 +02:00
Michael Eischer
b48766d7b8
Merge pull request #3928 from restic/rawtaz-doc-b2-s3
doc: Clarify S3 recommendation for B2 slightly
2022-09-13 20:59:50 +02:00
rawtaz
20f1913ef7
doc: Clarify S3 recommendation for B2 slightly
This gives slightly more background to the recommendation for using restic's S3 backend with Backblaze B2.
2022-09-12 17:48:59 +02:00
rawtaz
d79e61ce5d
Merge pull request #3925 from hgraeber/add-powershell-completion
Add powershell completion
2022-09-11 01:04:57 +02:00
Herbert Graeber
988b386e8b Add powershell completion
- Add code for powersehll complition available in cobra
- Add documentation for powershell completion
- Add changelog for pr3925
2022-09-11 00:44:12 +02:00
rawtaz
14d09a6081
Merge pull request #3912 from MichaelEischer/cleanup-snapshot-filter-options
Clean up snapshot filter options
2022-09-11 00:18:42 +02:00
Michael Eischer
381da0443a tweak snapshot filter descriptions 2022-09-10 23:50:20 +02:00
Michael Eischer
8b9778d537
Merge pull request #3900 from MichaelEischer/b2-init-timeout
Add timeout for the initial connection to B2
2022-09-10 23:28:59 +02:00
Michael Eischer
17c27400f8
Merge pull request #3921 from MichaelEischer/filter-cleanup-error-handling
filter: deduplicate error handling for pattern validation
2022-09-10 23:24:50 +02:00
Michael Eischer
f76643bd2e
Merge pull request #3894 from MichaelEischer/filter-mount-exit-code
Mount should return exit code 0 after pressing Ctrl-C
2022-09-10 23:22:01 +02:00