Commit Graph

303 Commits

Author SHA1 Message Date
Alexander Neumann 04e054465a
Merge pull request #3475 from MichaelEischer/local-sftp-conn-limit
Limit concurrent operations for local / sftp backend
2022-04-09 21:33:00 +02:00
Michael Eischer 9e12159230 Fix O(n) backend list calls in FindFilteredSnapshots
When resolving snapshotIDs in FindFilteredSnapshots either
FindLatestSnapshot or FindSnapshot is called. Both operations issue a
list operation to the backend. When for example passing a long list of
snapshot ids to `forget` this could lead to a large number of list
operations.
2022-04-09 12:26:31 +02:00
Michael Eischer 3d29083e60 copy/find/ls/recover/stats: Memorize snapshot listing before index
These commands filter the snapshots according to some criteria which
essentially requires loading the index before filtering the snapshots.
Thus create a copy of the snapshots list beforehand and use it later on.
2022-04-09 12:26:30 +02:00
Michael Eischer ece06f125e sftp: Limit concurrent backend operations 2022-04-09 12:21:38 +02:00
Michael Eischer cd783358d3 local: Limit concurrent backend operations
Use a limit of 2 similar to the filereader concurrency in the archiver.
2022-04-09 12:21:38 +02:00
Michael Eischer 0b258cc054 backends: clean reader closing 2022-04-09 12:21:38 +02:00
Charlie Jiang d9c9415cfd Fix rclone (scoop shim) and sftp issue due to detached console on Windows 2022-04-03 17:53:17 +08:00
Michael Eischer c60540b196 add go:build headers everywhere 2022-03-28 22:23:47 +02:00
Michael Eischer 5ec312ca06 sftp: Implement atomic uploads
Create a temporary file with a sufficiently random name to essentially
avoid any chance of conflicts. Once the upload has finished remove the
temporary suffix. Interrupted upload thus will be ignored by restic.
2022-02-12 20:30:49 +01:00
rawtaz 7f6fc78f95
Merge pull request #3544 from restic/fix-b2-delete-retry
b2: Successful delete if file does not exist
2022-01-13 23:28:30 +01:00
Charlie Jiang a5b0e0bef4 fix: rclone receiving SIGINT prematurely on Windows causing restic hang forever
Co-authored-by: greatroar <61184462+greatroar@users.noreply.github.com>
2021-12-28 13:14:46 +08:00
Michael Eischer 50053a85d3 rest: Adjust http2 missing eof test to golang >= 1.17.3, >= 1.16.10
The missing eof with http2 when a response included a content-length
header but no data, has been fixed in golang 1.17.3/1.16.10. Therefore
just drop the canary test and schedule it for removal once go 1.18 is
required as minimum version by restic.
2021-11-13 21:57:30 +01:00
MichaelEischer f1cfb97237
Merge pull request #3514 from phcreery/rclone_timeout
rclone: extend timeout from 60s to 240s
2021-11-07 18:10:34 +01:00
Michael Eischer b0e64deb27 rclone: Fix timeout calculation 2021-11-07 17:49:33 +01:00
phcreery 43d173b042 rclone: add timeout option and documentation 2021-11-07 17:49:21 +01:00
Michael Eischer 15d7313387 local: Fix fd leak when encountering files directly inside data/ 2021-11-06 19:44:57 +01:00
Michael Eischer 257740b0cc b2: Successful delete if file does not exist
When deleting a file, B2 sometimes returns a "500 Service Unavailable"
error but nevertheless correctly deletes the file. Due to retries in
the B2 library blazer, we sometimes also see a "400 File not present"
error. The retries of restic for the delete request then fail with
"404 File with such name does not exist.".

As we have to rely on request retries in a distributed system to handle
temporary errors, also consider a delete request to be successful if the
file is reported as not existing. This should be safe as B2 claims to
provide a strongly consistent bucket listing and thus a missing file
shouldn't mysteriously show up again later on.
2021-10-09 23:51:12 +02:00
Garry McNulty 708d7a2574 s3: Add warning if key ID or secret is empty
Also add debug message if no credential types are available.

Closes #2388
2021-10-06 23:13:40 +01:00
MichaelEischer 78dac2fd48
Merge pull request #3523 from greatroar/swift-v2
Upgrade ncw/swift to v2
2021-09-24 21:41:36 +02:00
Michael Eischer 5ea8bba1a1 swift: restore context err check for list() 2021-09-24 21:19:46 +02:00
greatroar e7ec0453b1 Upgrade ncw/swift to v2 2021-09-24 19:08:37 +02:00
Sam Lucidi 897d8e662c Add --insecure-tls flag to disable SSL cert verification
Signed-off-by: Sam Lucidi <slucidi@redhat.com>
2021-09-21 10:52:40 -04:00
Alexander Weiss 81876d5c1b Simplify cache logic 2021-09-03 21:01:00 +02:00
MichaelEischer ec2e3b260e
Merge pull request #3499 from greatroar/wrappedconn-pointer
rclone: Return one fewer value from run
2021-08-31 21:48:36 +02:00
greatroar 950b818274 rclone: Return one fewer value from run 2021-08-26 18:12:08 +02:00
Michael Eischer 68370feeee backends: Remove TestSaveFilenames test
Filenames are expected to match the sha256 sum of the file content. This
rule is now enforced by the rest server thus making this test useless.
2021-08-15 18:24:16 +02:00
Michael Eischer 574c83e47f rest: Fix test to use paths which are the sha256 sum of the data 2021-08-15 18:19:43 +02:00
Michael Eischer e6a5801155 rest: Fix test backend url
The rest config normally uses prepareURL to sanitize URLs and ensures
that the URL ends with a slash. However, the test used an URL without a
trailing slash, which after the rest server changes causes test
failures.
2021-08-15 18:16:17 +02:00
Michael Eischer f4c5dec05d backend: test that a wrong hash fails an upload 2021-08-04 22:17:46 +02:00
Michael Eischer 7c1903e1ee panic if hash returns an error
Add a sanity check that the interface contract is honoured.
2021-08-04 22:17:46 +02:00
Michael Eischer 51b7e3119b mem: calculate md5 content hash for uploads
The mem backend is primarily used for testing. This ensures that the
upload hash calculation gets appropriate test coverage.
2021-08-04 22:17:46 +02:00
Michael Eischer a009b39e4c gs/swift: calculate md5 content hash for upload 2021-08-04 22:17:46 +02:00
Michael Eischer 1d3e99f475 azure: check upload using md5 content hash
For files below 256MB this uses the md5 hash calculated while assembling
the pack file. For larger files the hash for each 100MB part is
calculated on the fly. That hash is also reused as temporary filename.
As restic only uploads encrypted data which includes among others a
random initialization vector, the file hash shouldn't be susceptible to
md5 collision attacks (even though the algorithm is broken).
2021-08-04 22:17:46 +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
Michael Eischer ee2f14eaf0 s3: enable content hash calculation for uploads 2021-08-04 22:12:12 +02:00
greatroar 81e2499d19 Sync directory to get durable writes in local backend 2021-08-04 21:51:53 +02:00
greatroar 195a5cf996 Save files under temporary name in local backend
Fixes #3435.
2021-08-04 21:51:53 +02:00
Alexander Weiss 38a8a48a25 Simplify dry run backend 2021-08-04 21:19:29 +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
greatroar fa3eed1998 Use rclone.wrappedConn by pointer
This shaves a kilobyte off the Linux binary by not generating a
non-pointer interface implementation.
2021-08-01 09:11:50 +02:00
Alexander Neumann d8ea10db8c rest: Rework handling HTTP2 zero-length replies bug
Add comment that the check is based on the stdlib HTTP2 client. Refactor
the checks into a function. Return an error if the value in the
Content-Length header cannot be parsed.
2021-07-31 17:12:24 +02:00
Michael Eischer 097ed659b2 rest: test that zero-length replies over HTTP2 work correctly
The first test function ensures that the workaround works as expected.
And the second test function is intended to fail as soon as the issue
has been fixed in golang to allow us to eventually remove the
workaround.
2021-07-10 17:22:42 +02:00
Michael Eischer 185a55026b rest: workaround for HTTP2 zero-length replies bug
The golang http client does not return an error when a HTTP2 reply
includes a non-zero content length but does not return any data at all.
This scenario can occur e.g. when using rclone when a file stored in a
backend seems to be accessible but then fails to download.
2021-07-10 16:59:01 +02:00
MichaelEischer c1eb7ac1a1
Merge pull request #3420 from greatroar/local-errs
Modernize error handling in local backend
2021-06-20 14:20:40 +02:00
greatroar e5f0f67ba0 Modernize error handling in local backend
* Stop prepending the operation name: it's already part of os.PathError,
  leading to repetitive errors like "Chmod: chmod /foo/bar: operation not
  permitted".

* Use errors.Is to check for specific errors.
2021-06-18 11:13:27 +02:00
MichaelEischer a476752962
Merge pull request #3421 from greatroar/s3-fileinfo
Return s3.fileInfos by pointer
2021-06-12 18:55:18 +02:00
greatroar 0d4f16b6ba Return s3.fileInfos by pointer
Since the fileInfos are returned in a []interface, they're already
allocated on the heap. Making them pointers explicitly means the
compiler doesn't need to generate fileInfo and *fileInfo versions of the
methods on this type. The binary becomes about 7KiB smaller on
Linux/amd64.
2021-06-07 19:48:43 +02:00
Michael Eischer 75c990504d azure/gs: Fix default value in connections help text 2021-05-17 20:56:51 +02:00
MichaelEischer 64b00d28b1
Merge pull request #3345 from greatroar/sftp-enospc
Check for ENOSPC and remove broken files in SFTP
2021-05-13 20:09:38 +02:00
greatroar dc88ca79b6 Handle lack of space and remove broken files in SFTP backend 2021-03-27 15:02:14 +01:00