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mirror of https://github.com/octoleo/restic.git synced 2024-11-18 02:55:18 +00:00
Commit Graph

80 Commits

Author SHA1 Message Date
Alexander Weiss
81876d5c1b Simplify cache logic 2021-09-03 21:01:00 +02:00
Michael Eischer
9aa2eff384 Add plumbing to calculate backend specific file hash for upload
This enables the backends to request the calculation of a
backend-specific hash. For the currently supported backends this will
always be MD5. The hash calculation happens as early as possible, for
pack files this is during assembly of the pack file. That way the hash
would even capture corruptions of the temporary pack file on disk.
2021-08-04 22:17:46 +02:00
Ryan Hitchman
77bf148460 backup: add --dry-run/-n flag to show what would happen.
This can be used to check how large a backup is or validate exclusions.
It does not actually write any data to the underlying backend. This is
implemented as a simple overlay backend that accepts writes without
forwarding them, passes through reads, and generally does the minimal
necessary to pretend that progress is actually happening.

Fixes #1542

Example usage:

$ restic -vv --dry-run . | grep add
new       /changelog/unreleased/issue-1542, saved in 0.000s (350 B added)
modified  /cmd/restic/cmd_backup.go, saved in 0.000s (16.543 KiB added)
modified  /cmd/restic/global.go, saved in 0.000s (0 B added)
new       /internal/backend/dry/dry_backend_test.go, saved in 0.000s (3.866 KiB added)
new       /internal/backend/dry/dry_backend.go, saved in 0.000s (3.744 KiB added)
modified  /internal/backend/test/tests.go, saved in 0.000s (0 B added)
modified  /internal/repository/repository.go, saved in 0.000s (20.707 KiB added)
modified  /internal/ui/backup.go, saved in 0.000s (9.110 KiB added)
modified  /internal/ui/jsonstatus/status.go, saved in 0.001s (11.055 KiB added)
modified  /restic, saved in 0.131s (25.542 MiB added)
Would add to the repo: 25.892 MiB
2021-08-04 21:19:29 +02:00
Alexander Neumann
aef3658a5f Address review comments 2021-01-30 20:02:37 +01:00
Alexander Neumann
16313bfcc9 errcheck: Add error check for MergeFinalIndexes() 2021-01-30 20:02:37 +01:00
Alexander Neumann
75f53955ee errcheck: Add error checks
Most added checks are straight forward.
2021-01-30 20:02:37 +01:00
Michael Eischer
a12c5f1d37 repository: move otherwise unused LoadIndex to tests 2020-12-22 22:36:18 +01:00
Michael Eischer
24474a36f4 repository: deduplicate index loading implementation 2020-12-22 22:36:18 +01:00
Alexander Neumann
36c5d39c2c Fix issues reported by semgrep 2020-12-11 09:41:59 +01:00
Alexander Neumann
7facc8ccc1
Merge pull request #2505 from aawsome/fix-repo-configfile
Fix repo configfile
2020-12-07 07:52:37 +01:00
Alexander Weiss
aa7a5f19c2 Use BlobHandle in index methods 2020-11-22 20:41:12 +01:00
Alexander Weiss
c3ddde9e7d Return hdrSize in ListPack 2020-11-21 22:13:54 +01:00
Alexander Weiss
43732bb885 Add CreateIndexFromPacks() 2020-11-15 07:04:51 +01:00
Alexander Weiss
fd33030556 Use in-memory index to rebuild index in prune 2020-11-06 20:23:30 +01:00
Alexander Neumann
a4507610a0 Fix typo 2020-11-05 10:31:49 +01:00
Alexander Weiss
b44ecde8b0 Fix setting of ID in DecodeIndex 2020-10-17 09:12:58 +02:00
MichaelEischer
4ba237bb93
Merge pull request #3019 from greatroar/refactor-decodeindex
Refactor index decoding
2020-10-15 23:22:33 +02:00
greatroar
b27375f5ce defer close(ch) outside repository.RunWorkers 2020-10-14 15:50:16 +02:00
greatroar
27db3ec262 Refactor index decoding
Decoding old-format indices no longer requires loading and decrypting
twice.
2020-10-13 20:47:50 +02:00
Alexander Neumann
56883817d8
Merge pull request #2990 from MichaelEischer/fix-goreport-warnings
Fix some goreport warnings
2020-10-12 20:44:56 +02:00
Michael Eischer
e638b46a13 Embed context into ReaderAt
The io.Reader interface does not support contexts, such that it is
necessary to embed the context into the backendReaderAt struct. This has
the problem that a reader might suddenly stop working when it's
contained context is canceled. However, this is now problem here as the
reader instances never escape the calling function.
2020-10-09 22:39:07 +02:00
Michael Eischer
a449450021 init: pass proper context to master key generation
This is no change in behavior as a canceled context did later on cause
the config file creation to fail. Therefore this change just lets the
repository initialization fail a bit earlier.
2020-10-09 22:37:56 +02:00
Michael Eischer
c458e114d4 pass context to Find / FindSnapshot
This allows proper interruption of restic while it searches for
snapshots or key files.
2020-10-09 22:37:56 +02:00
Michael Eischer
eba5dd831f Fix typos reported by misspell 2020-10-06 14:55:13 +02:00
Michael Eischer
f003410402 init: Add --copy-chunker-params option
This allows creating multiple repositories with identical chunker
parameters which is required for working deduplication when copying
snapshots between different repositories.
2020-09-19 16:53:05 +02:00
greatroar
23fcbb275a Remove restic.Cache interface
It was used in one code path, which then asserted its concrete type as
*cache.Cache.

Privatised some of the interface methods.
2020-09-18 10:48:13 +02:00
Michael Eischer
d0329cf3eb Adjust comments to match name of exported methods 2020-09-05 10:07:16 +02:00
Michael Eischer
4784540f04 repository: Simplify worker group code 2020-09-05 10:07:16 +02:00
aawsome
0fed6a8dfc
Use "pack file" instead of "data file" (#2885)
- changed variable names, especially changed DataFile into PackFile
- changed in some comments
- always use "pack file" in docu
2020-08-16 11:16:38 +02:00
Michael Eischer
c847aace35 Rename Index interface to MasterIndex
The interface is now only implemented by repository.MasterIndex.
2020-07-25 21:19:46 +02:00
Alexander Weiss
9d1fb94c6c make Lookup() return all blobs
+ simplify syntax
2020-07-25 21:18:34 +02:00
greatroar
309598c237 Simplify sortCachedPacksFirst test in internal/repository
The test now uses the fact that the sort is stable. It's not guaranteed
to be, but the test is cleaner and more exhaustive. sortCachedPacksFirst
no longer needs a return value.
2020-07-25 12:12:59 +02:00
greatroar
03d23e6faa Speed up blob sorting in internal/repository
name                    old time/op    new time/op    delta
SortCachedPacksFirst-8     208µs ± 3%     186µs ± 3%  -10.74%  (p=0.000 n=10+8)

name                    old alloc/op   new alloc/op   delta
SortCachedPacksFirst-8     213kB ± 0%     139kB ± 0%  -34.62%  (p=0.000 n=10+10)

name                    old allocs/op  new allocs/op  delta
SortCachedPacksFirst-8     1.03k ± 0%     1.03k ± 0%   -0.19%  (p=0.000 n=10+10)
2020-07-25 12:12:59 +02:00
greatroar
b10acd2af7 Test and benchmark blob sorting in internal/repository 2020-07-25 12:12:58 +02:00
Alexander Weiss
e388d962a5 Merge final indexes together for faster index access 2020-07-22 21:54:02 +02:00
Alexander Weiss
d3c59d18e5 Fix inconsistency of saving/loading config file
Fix saving/loading config file: Always set ID to a zero ID.
2020-06-13 16:30:23 +02:00
MichaelEischer
dd7b4f54f5
Merge pull request #2709 from greatroar/minio-sha256
Use Minio's optimized SHA-256
2020-06-12 23:32:58 +02:00
Alexander Weiss
70347e95d5 disable index uploads for prune command
+ modifications of changelog
2020-06-12 09:24:38 +02:00
Alexander Weiss
91906911b0 Fix non-intuitive repository behavior
- The SaveBlob method now checks for duplicates.
- Moves handling of pending blobs to MasterIndex.
  -> also cleans up pending index entries when they are saved in the index
  -> when using SaveBlob no need to care about index any longer
- Always check for full index and save it when storing packs.
  -> removes the need of an index uploader
  -> also removes the verbose "uploaded intermediate index" messages
- The Flush method now also saves the index
- Fix race condition when checking and saving full/non-finalized indexes
2020-06-11 13:05:23 +02:00
greatroar
42a3db05b0 Use Minio's optimized SHA-256
internal/repository benchmarks on an Intel i7-3770k:

name               old speed      new speed       delta
PackerManager-8     209MB/s ± 1%    291MB/s ± 1%  +38.94%  (p=0.008 n=5+5)
SaveAndEncrypt-8    112MB/s ± 1%    135MB/s ± 1%  +20.25%  (p=0.008 n=5+5)
2020-04-28 07:57:18 +02:00
greatroar
e7d7b85d59 Merge Repository.{LoadBlob,loadBlob}
Pushing the allocation logic down into the former loadBlob body means
that fewer allocations have to be performed:

name              old time/op    new time/op    delta
LoadTree-8           478µs ± 1%     481µs ± 2%    ~     (p=0.315 n=9+10)
LoadBlob-8          11.6ms ± 1%    11.6ms ± 2%    ~     (p=0.393 n=10+10)
LoadAndDecrypt-8    13.3ms ± 3%    13.3ms ± 3%    ~     (p=0.905 n=10+9)
LoadIndex-8         33.6ms ± 2%    33.2ms ± 1%  -1.15%  (p=0.028 n=10+9)

name              old alloc/op   new alloc/op   delta
LoadTree-8          41.2kB ± 0%    41.1kB ± 0%  -0.23%  (p=0.000 n=10+10)
LoadBlob-8          2.28kB ± 0%    2.18kB ± 0%  -4.21%  (p=0.000 n=10+10)
LoadAndDecrypt-8    2.10MB ± 0%    2.10MB ± 0%    ~     (all equal)
LoadIndex-8         5.22MB ± 0%    5.22MB ± 0%    ~     (p=0.631 n=10+10)

name              old allocs/op  new allocs/op  delta
LoadTree-8             652 ± 0%       651 ± 0%  -0.15%  (p=0.000 n=10+10)
LoadBlob-8            24.0 ± 0%      23.0 ± 0%  -4.17%  (p=0.000 n=10+10)
LoadAndDecrypt-8      30.0 ± 0%      30.0 ± 0%    ~     (all equal)
LoadIndex-8          30.2k ± 0%     30.2k ± 0%    ~     (p=0.610 n=10+10)

name              old speed      new speed      delta
LoadBlob-8        86.4MB/s ± 1%  85.9MB/s ± 2%    ~     (p=0.393 n=10+10)
LoadAndDecrypt-8  75.4MB/s ± 3%  75.4MB/s ± 3%    ~     (p=0.858 n=10+9)
2020-04-23 10:04:20 +02:00
greatroar
be5a0ff59f Centralize buffer allocation and size checking in Repository.LoadBlob
Benchmark results for internal/repository:

name              old time/op    new time/op    delta
LoadTree-8           479µs ± 2%     478µs ± 1%   ~     (p=0.780 n=10+9)
LoadBlob-8          11.6ms ± 2%    11.6ms ± 1%   ~     (p=0.631 n=10+10)
LoadAndDecrypt-8    13.2ms ± 2%    13.3ms ± 3%   ~     (p=0.631 n=10+10)

name              old alloc/op   new alloc/op   delta
LoadTree-8          41.2kB ± 0%    41.2kB ± 0%   ~     (all equal)
LoadBlob-8          2.28kB ± 0%    2.28kB ± 0%   ~     (all equal)
LoadAndDecrypt-8    2.10MB ± 0%    2.10MB ± 0%   ~     (all equal)

name              old allocs/op  new allocs/op  delta
LoadTree-8             652 ± 0%       652 ± 0%   ~     (all equal)
LoadBlob-8            24.0 ± 0%      24.0 ± 0%   ~     (all equal)
LoadAndDecrypt-8      30.0 ± 0%      30.0 ± 0%   ~     (all equal)

name              old speed      new speed      delta
LoadBlob-8        86.2MB/s ± 2%  86.4MB/s ± 1%   ~     (p=0.594 n=10+10)
LoadAndDecrypt-8  75.7MB/s ± 2%  75.4MB/s ± 3%   ~     (p=0.617 n=10+10)
2020-04-23 10:04:20 +02:00
Michael Eischer
b46cc6d57e repository: Don't sort one element pack lists
When loading a blob, restic first looks up pack files containing the
blob. To avoid unnecessary work an already cached pack file is preferred.
However, if there is only a single pack file to choose from (which is
the normal case) sorting the one-element list won't change anything.
Therefore avoid the unnecessary cache check in that case.
2020-03-07 10:26:06 +01:00
greatroar
8526cc6647 Remove sync.Pool from internal/repository
The pool was used improperly, causing more allocations to be
performed than without it.

name              old time/op    new time/op    delta
SaveAndEncrypt-8    36.8ms ± 2%    36.9ms ± 2%    ~     (p=0.218 n=10+10)

name              old speed      new speed      delta
SaveAndEncrypt-8   114MB/s ± 2%   114MB/s ± 2%    ~     (p=0.218 n=10+10)

name              old alloc/op   new alloc/op   delta
SaveAndEncrypt-8    21.1MB ± 0%    21.0MB ± 0%  -0.44%  (p=0.000 n=10+10)

name              old allocs/op  new allocs/op  delta
SaveAndEncrypt-8      79.0 ± 0%      77.0 ± 0%  -2.53%  (p=0.000 n=10+10)
2020-02-29 17:54:46 +01:00
Alexander Bruyako
da48b925ff remove unnecessary error return
I was running "golangci-lint" and found this two warnings

internal/checker/checker.go:135:18: (*Checker).LoadIndex$3 - result 0 (error) is always nil (unparam)
        final := func() error {
                        ^
internal/repository/repository.go:457:18: (*Repository).LoadIndex$3 - result 0 (error) is always nil (unparam)
        final := func() error {
                        ^

It turns out that these functions are used only in "RunWorkers(...)",
which is used only two times in whole project right after this "final"
functions.
And because these "final" functions always return "nil", I've
descided, that it would be better to remove requriments for "final" func
to return error to avoid magick "return nil" at their end.
2020-01-27 18:28:21 +03:00
Alexander Neumann
88716794e3 Check errors returned by LoadIndex()
Bug was reported in the forum here: https://forum.restic.net/t/check-rebuild-index-prune/1848/13
2019-06-30 21:34:53 +02:00
Alexander Neumann
66efa425bf Reuse buffer in worker functions 2019-04-13 13:38:39 +02:00
Alexander Neumann
d51e9d1b98 Add []byte to repo.LoadAndDecrypt and utils.LoadAll
This commit changes the signatures for repository.LoadAndDecrypt and
utils.LoadAll to allow passing in a []byte as the buffer to use. This
buffer is enlarged as needed, and returned back to the caller for
further use.

In later commits, this allows reducing allocations by reusing a buffer
for multiple calls, e.g. in a worker function.
2019-04-13 13:38:39 +02:00
Alexander Neumann
e046428c94 Replace FilesInParallel with an errgroup.Group 2019-04-13 13:38:39 +02:00
Chris Howie
1688713400 Add key hinting (#2097) 2018-11-25 09:13:18 -05:00