MichaelEischer
82c908871d
Merge pull request #2812 from greatroar/chaining
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Chaining hash table for repository.Index
2020-07-20 23:29:36 +02:00
Alexander Neumann
8074879c5f
Remove 'go generate'
2020-07-19 17:28:42 +02:00
greatroar
7bda28f31f
Chaining hash table for repository.Index
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These are faster to construct but slower to access. The allocation rate
is halved, the peak memory usage almost halved compared to standard map.
Benchmark results on linux/amd64, -benchtime=3s -count=20:
name old time/op new time/op delta
PackerManager-8 178ms ± 0% 178ms ± 0% ~ (p=0.231 n=20+20)
DecodeIndex-8 4.54s ± 0% 4.30s ± 0% -5.20% (p=0.000 n=18+17)
DecodeIndexParallel-8 4.54s ± 0% 4.30s ± 0% -5.22% (p=0.000 n=19+18)
IndexHasUnknown-8 44.4ns ± 5% 50.5ns ±11% +13.82% (p=0.000 n=19+17)
IndexHasKnown-8 48.3ns ± 0% 51.5ns ±12% +6.68% (p=0.001 n=16+20)
IndexAlloc-8 758ms ± 1% 616ms ± 1% -18.69% (p=0.000 n=19+19)
IndexAllocParallel-8 234ms ± 3% 204ms ± 2% -12.60% (p=0.000 n=20+18)
MasterIndexLookupSingleIndex-8 122ns ± 0% 145ns ± 9% +18.44% (p=0.000 n=14+20)
MasterIndexLookupMultipleIndex-8 369ns ± 2% 429ns ± 8% +16.27% (p=0.000 n=20+20)
MasterIndexLookupSingleIndexUnknown-8 68.4ns ± 5% 74.9ns ±13% +9.47% (p=0.000 n=20+20)
MasterIndexLookupMultipleIndexUnknown-8 315ns ± 3% 369ns ±11% +17.14% (p=0.000 n=20+20)
MasterIndexLookupParallel/known,indices=5-8 743ns ± 1% 816ns ± 2% +9.87% (p=0.000 n=17+17)
MasterIndexLookupParallel/unknown,indices=5-8 238ns ± 1% 260ns ± 2% +9.14% (p=0.000 n=19+20)
MasterIndexLookupParallel/known,indices=10-8 1.01µs ± 3% 1.11µs ± 2% +9.79% (p=0.000 n=19+20)
MasterIndexLookupParallel/unknown,indices=10-8 222ns ± 0% 269ns ± 2% +20.83% (p=0.000 n=16+20)
MasterIndexLookupParallel/known,indices=20-8 1.06µs ± 2% 1.19µs ± 2% +12.95% (p=0.000 n=19+18)
MasterIndexLookupParallel/unknown,indices=20-8 413ns ± 1% 530ns ± 1% +28.19% (p=0.000 n=18+20)
SaveAndEncrypt-8 30.2ms ± 1% 30.4ms ± 0% +0.71% (p=0.000 n=19+19)
LoadTree-8 540µs ± 1% 576µs ± 1% +6.73% (p=0.000 n=20+20)
LoadBlob-8 5.64ms ± 0% 5.64ms ± 0% ~ (p=0.883 n=18+17)
LoadAndDecrypt-8 5.93ms ± 0% 5.95ms ± 1% ~ (p=0.247 n=20+19)
LoadIndex-8 25.1ms ± 0% 24.5ms ± 1% -2.54% (p=0.000 n=18+17)
name old speed new speed delta
PackerManager-8 296MB/s ± 0% 296MB/s ± 0% ~ (p=0.229 n=20+20)
SaveAndEncrypt-8 139MB/s ± 1% 138MB/s ± 0% -0.71% (p=0.000 n=19+19)
LoadBlob-8 177MB/s ± 0% 177MB/s ± 0% ~ (p=0.890 n=18+17)
LoadAndDecrypt-8 169MB/s ± 0% 168MB/s ± 1% ~ (p=0.227 n=20+19)
name old alloc/op new alloc/op delta
PackerManager-8 91.8kB ± 0% 91.8kB ± 0% ~ (p=0.772 n=12+19)
IndexAlloc-8 786MB ± 0% 400MB ± 0% -49.04% (p=0.000 n=20+18)
IndexAllocParallel-8 786MB ± 0% 401MB ± 0% -49.04% (p=0.000 n=19+15)
SaveAndEncrypt-8 21.0MB ± 0% 21.0MB ± 0% +0.00% (p=0.000 n=19+19)
name old allocs/op new allocs/op delta
PackerManager-8 1.41k ± 0% 1.41k ± 0% ~ (all equal)
IndexAlloc-8 977k ± 0% 907k ± 0% -7.18% (p=0.000 n=20+20)
IndexAllocParallel-8 977k ± 0% 907k ± 0% -7.17% (p=0.000 n=19+15)
SaveAndEncrypt-8 73.0 ± 0% 73.0 ± 0% ~ (all equal)
2020-07-19 13:58:22 +02:00
greatroar
255ba83c4b
Parallel index benchmarks + benchmark optimizations
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createRandomIndex was using the global RNG, which locks on every call
It was also using twice as many random numbers as necessary and doing
a float division in every iteration of the inner loop.
BenchmarkDecodeIndex was using too short an input, especially for a
parallel version. (It may now be using one that is a bit large.)
Results on linux/amd64, -benchtime=3s -count=20:
name old time/op new time/op delta
PackerManager-8 178ms ± 0% 178ms ± 0% ~ (p=0.165 n=20+20)
DecodeIndex-8 13.6µs ± 2% 4539886.8µs ± 0% +33293901.38% (p=0.000 n=20+18)
IndexHasUnknown-8 44.4ns ± 7% 44.4ns ± 5% ~ (p=0.873 n=20+19)
IndexHasKnown-8 49.2ns ± 3% 48.3ns ± 0% -1.86% (p=0.000 n=20+16)
IndexAlloc-8 802ms ± 1% 758ms ± 1% -5.51% (p=0.000 n=20+19)
MasterIndexLookupSingleIndex-8 124ns ± 1% 122ns ± 0% -1.41% (p=0.000 n=20+14)
MasterIndexLookupMultipleIndex-8 373ns ± 2% 369ns ± 2% -1.13% (p=0.001 n=20+20)
MasterIndexLookupSingleIndexUnknown-8 67.8ns ± 3% 68.4ns ± 5% ~ (p=0.753 n=20+20)
MasterIndexLookupMultipleIndexUnknown-8 316ns ± 3% 315ns ± 3% ~ (p=0.846 n=20+20)
SaveAndEncrypt-8 30.5ms ± 1% 30.2ms ± 1% -1.09% (p=0.000 n=19+19)
LoadTree-8 527µs ± 1% 540µs ± 1% +2.37% (p=0.000 n=19+20)
LoadBlob-8 5.65ms ± 0% 5.64ms ± 0% -0.21% (p=0.000 n=19+18)
LoadAndDecrypt-8 7.07ms ± 2% 5.93ms ± 0% -16.15% (p=0.000 n=19+20)
LoadIndex-8 32.1ms ± 2% 25.1ms ± 0% -21.64% (p=0.000 n=20+18)
name old speed new speed delta
PackerManager-8 296MB/s ± 0% 296MB/s ± 0% ~ (p=0.159 n=20+20)
SaveAndEncrypt-8 138MB/s ± 1% 139MB/s ± 1% +1.10% (p=0.000 n=19+19)
LoadBlob-8 177MB/s ± 0% 177MB/s ± 0% +0.21% (p=0.000 n=19+18)
LoadAndDecrypt-8 141MB/s ± 2% 169MB/s ± 0% +19.24% (p=0.000 n=19+20)
name old alloc/op new alloc/op delta
PackerManager-8 91.8kB ± 0% 91.8kB ± 0% ~ (p=0.826 n=19+12)
IndexAlloc-8 786MB ± 0% 786MB ± 0% +0.01% (p=0.000 n=20+20)
SaveAndEncrypt-8 21.0MB ± 0% 21.0MB ± 0% -0.00% (p=0.012 n=20+19)
name old allocs/op new allocs/op delta
PackerManager-8 1.41k ± 0% 1.41k ± 0% ~ (all equal)
IndexAlloc-8 977k ± 0% 977k ± 0% +0.01% (p=0.022 n=20+20)
SaveAndEncrypt-8 73.0 ± 0% 73.0 ± 0% ~ (all equal)
2020-07-19 13:58:05 +02:00
Lars Lehtonen
9ac90cf5cd
internal/fuse: fix dropped test error
2020-07-12 21:42:31 -07:00
greatroar
58719e1f47
Replace mount's per-file cache by a global LRU cache
2020-07-12 18:27:16 +02:00
greatroar
d42c169458
Fix quadratic file reading in restic mount
2020-07-12 18:27:16 +02:00
greatroar
02bec13ef2
Fix repository_test.BenchmarkSaveAndEncrypt
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The benchmark was actually testing the speed of index lookups.
name old time/op new time/op delta
SaveAndEncrypt-8 101ns ± 2% 31505824ns ± 1% +31311591.31% (p=0.000 n=10+10)
name old speed new speed delta
SaveAndEncrypt-8 41.7TB/s ± 2% 0.0TB/s ± 1% -100.00% (p=0.000 n=10+10)
name old alloc/op new alloc/op delta
SaveAndEncrypt-8 1.00B ± 0% 20989508.40B ± 0% +2098950740.00% (p=0.000 n=10+10)
name old allocs/op new allocs/op delta
SaveAndEncrypt-8 0.00 123.00 ± 0% +Inf% (p=0.000 n=10+9)
(The actual speed is ca. 131MiB/s.)
2020-07-05 17:41:42 +02:00
MichaelEischer
212607dc8a
Merge pull request #2760 from greatroar/backend-benchmark
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Fix backend benchmarks + a micro-optimization
2020-06-17 23:17:05 +02:00
greatroar
190d8e2f51
Flatten backend.LimitedReadCloser structure
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This inlines the io.LimitedReader into the LimitedReadCloser body to
achieve fewer allocations. Results on linux/amd64:
name old time/op new time/op delta
Backend/BenchmarkLoadPartialFile-8 412µs ± 4% 413µs ± 4% ~ (p=0.634 n=17+17)
Backend/BenchmarkLoadPartialFileOffset-8 455µs ±13% 441µs ±10% ~ (p=0.072 n=20+18)
name old speed new speed delta
Backend/BenchmarkLoadPartialFile-8 10.2GB/s ± 3% 10.2GB/s ± 4% ~ (p=0.817 n=16+17)
Backend/BenchmarkLoadPartialFileOffset-8 9.25GB/s ±12% 9.54GB/s ± 9% ~ (p=0.072 n=20+18)
name old alloc/op new alloc/op delta
Backend/BenchmarkLoadPartialFile-8 888B ± 0% 872B ± 0% -1.80% (p=0.000 n=15+15)
Backend/BenchmarkLoadPartialFileOffset-8 888B ± 0% 872B ± 0% -1.80% (p=0.000 n=15+15)
name old allocs/op new allocs/op delta
Backend/BenchmarkLoadPartialFile-8 18.0 ± 0% 17.0 ± 0% -5.56% (p=0.000 n=15+15)
Backend/BenchmarkLoadPartialFileOffset-8 18.0 ± 0% 17.0 ± 0% -5.56% (p=0.000 n=15+15)
2020-06-17 13:11:45 +02:00
greatroar
f4cd2a7120
Make backend benchmarks fairer by removing checks
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Checking whether the right data is returned takes up half the time in
some benchmarks. Results for local backend benchmarks on linux/amd64:
name old time/op new time/op delta
Backend/BenchmarkLoadFile-8 4.89ms ± 0% 2.72ms ± 1% -44.26% (p=0.008 n=5+5)
Backend/BenchmarkLoadPartialFile-8 936µs ± 6% 439µs ±15% -53.07% (p=0.008 n=5+5)
Backend/BenchmarkLoadPartialFileOffset-8 940µs ± 1% 456µs ±10% -51.50% (p=0.008 n=5+5)
Backend/BenchmarkSave-8 23.9ms ±14% 24.8ms ±41% ~ (p=0.690 n=5+5)
name old speed new speed delta
Backend/BenchmarkLoadFile-8 3.43GB/s ± 0% 6.16GB/s ± 1% +79.40% (p=0.008 n=5+5)
Backend/BenchmarkLoadPartialFile-8 4.48GB/s ± 6% 9.63GB/s ±14% +114.78% (p=0.008 n=5+5)
Backend/BenchmarkLoadPartialFileOffset-8 4.46GB/s ± 1% 9.22GB/s ±10% +106.74% (p=0.008 n=5+5)
Backend/BenchmarkSave-8 706MB/s ±13% 698MB/s ±31% ~ (p=0.690 n=5+5)
2020-06-17 13:11:45 +02:00
Alexander Weiss
1361341c58
don't save duplicate packIDs when using internal/repository/Index.Store
2020-06-14 07:56:24 +02:00
Alexander Weiss
ce4a2f4ca6
save packIDs and duplicates separately
...
A side remark to the definition of Index.blob:
Another possibility would have been to use:
blob map[restic.BlobHandle]*indexEntry
This would have led to the following sizes:
key: 32 + 1 = 33 bytes
value: 8 bytes
indexEntry: 8 + 4 + 4 = 16 bytes
each packID: 32 bytes
To save N index entries, we would therefore have needed:
N * OF * (33 + 8) bytes + N * 16 + N * 32 bytes / BP = N * 82 bytes
More precicely, using a pointer instead of a direct entry is the better memory choice if:
OF * 8 bytes + entrysize < OF * entrysize <=> entrysize > 8 bytes * OF/(OF-1)
Under the assumption of OF=1.5, this means using pointers would have been the better choice
if sizeof(indexEntry) > 24 bytes.
2020-06-14 07:56:21 +02:00
Alexander Weiss
cf979e2b81
make offset and length uint32
2020-06-14 07:50:19 +02:00
Michael Eischer
d92e2c5769
simplify index code
2020-06-14 07:50:19 +02:00
Alexander Weiss
7419844885
add changelog, benchmark, memory calculation
2020-06-14 07:50:15 +02:00
MichaelEischer
dd7b4f54f5
Merge pull request #2709 from greatroar/minio-sha256
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Use Minio's optimized SHA-256
2020-06-12 23:32:58 +02:00
MichaelEischer
6896c6449b
Merge pull request #2779 from greatroar/archiver-comment
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Fix up comment on archiver.BlobSaver.Save
2020-06-12 23:04:21 +02:00
MichaelEischer
735a8074d5
Merge pull request #2773 from aawsome/index-uploads+knownblobs
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Fix non-intuitive repo behavior
2020-06-12 22:41:04 +02:00
Alexander Weiss
70347e95d5
disable index uploads for prune command
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+ modifications of changelog
2020-06-12 09:24:38 +02:00
greatroar
0fa3091c78
Fix up comment on archiver.BlobSaver.Save
2020-06-11 13:40:30 +02:00
Alexander Weiss
91906911b0
Fix non-intuitive repository behavior
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- 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
MichaelEischer
6856d1e422
Merge pull request #2749 from aawsome/fix-fullindex
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Change condition for full index
2020-06-10 20:40:19 +02:00
Alexander Weiss
8c1261ff02
changed condition for full index
2020-06-07 22:00:49 +02:00
MichaelEischer
84475aa3a8
Merge pull request #2730 from greatroar/mount-build-tags
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Simplify build tags for restic mount
2020-05-23 20:33:43 +02:00
Martin Michlmayr
5cc1760fdf
Fix typos
2020-05-16 14:05:26 +08:00
greatroar
649cbec6c5
Simplify build tags for restic mount
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This command can only be built on Darwin, FreeBSD and Linux
(and if we upgrade bazil.org/fuse, only FreeBSD and Linux:
https://github.com/bazil/fuse/issues/224 ).
Listing the few supported operating systems explicitly here makes
porting restic to new platforms easier.
2020-05-12 11:30:41 +02:00
greatroar
9f7cd69f13
Move Index.FindBlob to tests
2020-04-29 10:57:01 +02:00
greatroar
f97a680887
Fix repository benchmarks
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BenchmarkLoad{AndDecrypt,Blob} were spending between 38% and 50% of
their time measuring SHA-256 performance in their checks.
2020-04-28 07:57:29 +02:00
greatroar
42a3db05b0
Use Minio's optimized SHA-256
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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}
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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
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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
MichaelEischer
4f00564574
Merge pull request #2621 from greatroar/fixes
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Some small fixes
2020-04-18 18:07:08 +02:00
MichaelEischer
f77477129f
Merge pull request #2584 from greatroar/mount-cache-uid-gid
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Cache uid and gid for top directories in internal/fuse
2020-04-18 17:45:14 +02:00
greatroar
2e31120f89
Remove unused argument to restic.fakeFile
2020-04-18 17:40:13 +02:00
greatroar
8fb2c0d3c1
Typo in crypto test name
2020-04-18 17:39:06 +02:00
greatroar
072cf7b02d
Fix debug messages in internal/fuse
2020-04-18 17:39:06 +02:00
greatroar
df66daa5c9
Fix context usage in backend tests
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Found by go vet. This is also the only complaint is has.
2020-04-18 17:39:06 +02:00
MichaelEischer
16710454f4
Merge pull request #2628 from MichaelEischer/one-element-pack-lists
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cache: Don't sort one element pack lists
2020-04-18 17:09:06 +02:00
MichaelEischer
7910ff4c0e
Merge pull request #2648 from nairb774/iowritestring
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termstatus: Use io.WriteString to output messages.
2020-04-18 13:48:42 +02:00
MichaelEischer
c4da9d1e90
Merge pull request #2638 from greatroar/no-close-in-packer
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Don't Close in Packer.Finalize
2020-04-18 13:07:21 +02:00
MichaelEischer
a1352906e2
Merge pull request #2622 from greatroar/optimize-packer-manager
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Fix PackerManager benchmark and optimize hashing.Writer
2020-04-18 12:46:34 +02:00
MichaelEischer
b7c0d4d8bf
Merge pull request #2644 from greatroar/signal-notify-buffered
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Make all signal.Notify channels buffered
2020-04-18 11:31:02 +02:00
Michael Eischer
bdf7ba20cb
archiver: Fix race condition triggered by TestArchiverAbortEarlyOnError
...
The Save methods of the BlobSaver, FileSaver and TreeSaver return early
on when the archiver is stopped due to an error. For that they select on
both the tomb.Dying() and context.Done() channels, which can lead to a
race condition when the tomb is killed due to an error: The tomb first
closes its Dying channel before canceling all child contexts.
Archiver.SaveDir only aborts its execution once the context was
canceled. When the tomb killing is paused between closing its Dying
channel and canceling the child contexts, this lets the
FileSaver/TreeSaver.Save methods return immediately, however, ScanDir
still reads further files causing the test case to fail.
As a killed tomb always cancels all child contexts and as the Savers
always use a context bound to the tomb, it is sufficient to just use
context.Done() as escape hatch in the Save functions. This fixes the
mismatch between SaveDir and Save.
Adjust the tests to use contexts bound to the tomb for all interactions
with the Savers.
2020-04-13 18:23:17 +02:00
Brian Atkinson
b8da7b1f4d
termstatus: Use io.WriteString to output messages.
...
The previous implementation was repeating the implementation that is
found inside of io.WriteString. Simplify by making use of the stdlib's
implementation.
2020-03-26 14:55:00 -07:00
rawtaz
9efbe98879
Merge pull request #2623 from alrs/internal-restic-err-before-close
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internal/restic: close os.File after checking for error
2020-03-18 22:23:20 +01:00
rawtaz
7d9300efca
Merge pull request #2637 from greatroar/unused
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Remove Go 1.5 compatibility code
2020-03-18 22:22:15 +01:00
greatroar
47d4d5bf1b
Make all signal.Notify channels buffered
2020-03-12 20:59:39 +01:00
greatroar
74a64c47e4
Move testing logic to test file in internal/pack
2020-03-09 14:32:28 +01:00
greatroar
a23e9c86ba
Remove closing logic from Packer.Finalize
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The method only ever receives *hashing.Writers, which don't implement
io.Closer. These come from packerManager.findPacker and have their
actual writers closed in Repository.savePacker. Moving the closing logic
to hashing.Writer results in "file already closed" errors.
2020-03-09 14:31:45 +01:00