Before this change, streaming files an exact multiple of the chunk
size would cause rclone to attempt to stream a 0 sized chunk which was
rejected by the b2 servers.
This bug was noticed by the new integration tests for chunked streaming.
Before this change the b2 servers would complain as this was only a
single part transfer.
This was noticed by the new integration tests for server side chunked copy.
On a 404 error, b2 returns an empty body which, before this change,
caused the error handler to try to parse an empty string and give the
following DEBUG message:
Couldn't decode error response: EOF
This is confusing as it is expected in normal operations and isn't an
error.
This change reads the body of an error response first then tries to
decode it only if it isn't empty, which avoids the confusing DEBUG
message.
This also upgrades failure to read the body or failure to decode the
JSON to ERROR messages as now we are certain that we should have
something to read and decode.
Streaming uploads are used by rclone rcat and rclone mount
--vfs-cache-mode off.
After the multipart chunker refactor the multipart chunked streaming
upload was accidentally mixing the first and the second parts up which
was causing corrupted uploads.
This was caused by a simple off by one error in the refactoring where
we went from 1 based part number counting to 0 based part number
counting.
Fixing this revealed that the metadata wasn't being re-read for the
copied object either.
This fixes both of those issues and adds an integration tests so it
won't happen again.
Fixes#7367
After the multipart chunker refactor the multipart chunked server side
copy was accidentally sending one part too many. The last part was 0
length which was rejected by b2.
This was caused by a simple off by one error in the refactoring where
we went from 1 based part number counting to 0 based part number
counting.
Fixing this revealed that the metadata wasn't being re-read for the
copied object either.
This fixes both of those issues and adds an integration tests so it
won't happen again.
See: https://forum.rclone.org/t/large-server-side-copy-in-b2-fails-due-to-bad-byte-range/42294
In v1.63 memory usage in the b2 backend was limited to `--transfers` *
`--b2-chunk-size`
However in v1.64 this was raised to `--transfers` * `--b2-chunk-size`
* `--b2-upload-concurrency`.
The default value for this was accidently set quite high at 16 which
means by default rclone could use up to 6.4GB of memory!
The new default sets a more reasonable (but still high) max memory of 1.6GB.
Before this change, the lock was held while the upload URL was being
fetched from the server.
This meant that any other threads were blocked from getting upload
URLs unecessarily.
It also increased the potential for deadlock.
Before this change the b2 backend listed all the buckets to turn a
single bucket name into an ID.
However in July 26, 2018 a parameter was added to the list buckets API
to make listing all the buckets unecessary.
This code sets the bucketName parameter so that only the results for
the desired bucket are returned.
Before this change the concurrency used for an upload was rather
inconsistent.
- if size below `--backend-upload-cutoff` (default 200M) do single part upload.
- if size below `--multi-thread-cutoff` (default 256M) or using streaming
uploads (eg `rclone rcat) do multipart upload using
`--backend-upload-concurrency` to set the concurrency used by the uploader.
- otherwise do multipart upload using `--multi-thread-streams` to set the
concurrency.
This change makes the default for the concurrency used be the
`--backend-upload-concurrency`. If `--multi-thread-streams` is set and larger
than the `--backend-upload-concurrency` then that will be used instead.
This means that if the user sets `--backend-upload-concurrency` then it will be
obeyed for all multipart/multi-thread transfers and the user can override them
all with `--multi-thread-streams`.
See: #7056
Before this change, b2 would return an error when opening a link
generated by `rclone link`. The following error occurs when the object
path contains an ampersand that is not percent encoded:
{
"code": "bad_request",
"message": "Bad character in percent-encoded string: 38 (0x26)",
"status": 400
}
This implements the OpenChunkWriter interface for b2 which
enables multi-thread uploads.
This makes the memory controls of the s3 backend inoperative; they are
replaced with the global ones.
--b2-memory-pool-flush-time
--b2-memory-pool-use-mmap
By using the buffered reader this fixes excessive memory use when
uploading large files as it will share memory pages between all
readers.
This introduces a new fs.Option flag, Sensitive and uses this along
with IsPassword to redact the info in the config file for support
purposes.
It adds this flag into backends where appropriate. It was necessary to
add oauthutil.SharedOptions to some backends as they were missing
them.
Fixes#5209
Before this change, all types of checkers showed "checking" after the
file name despite the fact that not all of them were checking.
After this change, they can show
- checking
- deleting
- hashing
- importing
- listing
- merging
- moving
- renaming
See: https://forum.rclone.org/t/what-is-rclone-checking-during-a-purge/35931/
Before this change when uploading files bigger than 1TiB, the chunk
calculator would work out that the chunk size needed to be bigger than
the default 100 MiB to fit within the 10,000 parts limit.
However the uploader was still using the memory pool for the old chunk
size and this caused errors like
panic: runtime error: slice bounds out of range [:122683392] with capacity 100663296
The fix for this is to make a temporary pool with the larger chunk
size and use it during the upload of the large file.
See: https://forum.rclone.org/t/rclone-cannot-complete-upload-to-b2-restarts-upload-frequently/35617/
Before this fix, the chunksize calculator was using the previous size
of the object, not the new size of the object to calculate the chunk
sizes.
This meant that uploading a replacement object which needed a new
chunk size would fail, using too many parts.
This fix fixes the calculator to take the size explicitly.
Uses b2_list_file_versions to retrieve all file versions, and returns
the one that was active at the specified time
This is especially useful in combination with other backup tools, such
as restic, which may use rclone as a backend.
Currently the B2 docs don't specify which format the download_url
setting should have, and if you input it wrong, there is nothing
in the verbose logs or anywhere else that can let you know that.
This is possible now that we no longer support go1.12 and brings
rclone into line with standard practices in the Go world.
This also removes errors.New and errors.Errorf from lib/errors and
prefers the stdlib errors package over lib/errors.
Includes adding support for additional size input suffix Mi and MiB, treated equivalent to M.
Extends binary suffix output with letter i, e.g. Ki and Mi.
Centralizes creation of bit/byte unit strings.
Including the bucket name as part of the `fileNamePrefix` passed to
`b2_get_download_authorization` results in a link valid for objects that
have the bucket name as part of the object path; e.g.,
rclone link :b2:some-bucket/some-file
would result in a public link valid for the object
`some-bucket/some-file` in the `some-bucket` bucket (in rclone-remote
parlance, `:b2:some-bucket/some-bucket/some-file`). This will almost
certainly result in a broken link.
The B2 docs don't explicitly specify this behavior, but the example
given for `fileNamePrefix` provides some clarification.
See https://www.backblaze.com/b2/docs/b2_get_download_authorization.html.
When reading files from B2 via cloudflare using --b2-download-url
cloudflare strips the Content-Length headers (presumably so it can
inject stuff into the body).
This caused rclone to think the file was corrupted as the length
didn't match.
The patch uses the old length read from the listing if there is no
Content-Length.
See: https://forum.rclone.org/t/b2-cloudflare-error-directory-not-found/23026
This change checks the context whenever rclone might retry, and
doesn't retry if the current context has an error.
This fixes the pathological behaviour of `--max-duration` refusing to
exit because all the context deadline exceeded errors were being
retried.
This unfortunately meant changing the shouldRetry logic in every
backend and doing a lot of context propagation.
See: https://forum.rclone.org/t/add-flag-to-exit-immediately-when-max-duration-reached/22723
Before this change, if an application key limited to a prefix was in
use, with trailing `/` marking the folders then rclone would HEAD the
path without a trailing `/` to work out if it was a file or a folder.
This returned a permission denied error, which rclone returned to the
user.
Failed to create file system for "b2:bucket/path/":
failed to HEAD for download: Unknown 401 (401 unknown)
This change assumes any errors on HEAD will make rclone assume the
object does not exist and the path is referring to a directory.
See: https://forum.rclone.org/t/b2-error-on-application-key-limited-to-a-prefix/22159/
Before this change, if --b2-chunk-size was raised above 200M then this
error would be produced:
b2: upload cutoff: 200M is less than chunk size 1G
This change automatically reaises --b2-upload-cutoff to be the value
of --b2-chunk-size if it is below it, which stops this error being
generated.
Fixes#4475
The current authentication scheme works without creating
a public download endpoint for a private bucket as in the B2 official blog.
On the contrary, if the existing authorization header gets duplicated
in the Cloudflare Workers script, one might receive 401 Unauthorized errors.
Before this change when NewObject was called the b2 backend would list
the directory that the object was in in order to find it.
Unfortunately list calls are Class C transactions and cost more.
This patch switches to using HEAD requests instead. These are Class B
transactions. It is then necessary to parse the headers from response
back into the data that we get from the listing. However B2 returns
exactly the same data, just in a different form.
Rclone will use the old directory listing method when looking for
files with versions as these can't be found via a HEAD request.
This change will particularly benefit --files-from, rclone serve
restic but most operations will see some benefit.
This is done by making fs.Config private and attaching it to the
context instead.
The Config should be obtained with fs.GetConfig and fs.AddConfig
should be used to get a new mutable config that can be changed.
This adds a context.Context parameter to NewFs and related calls.
This is necessary as part of reading config from the context -
backends need to be able to read the global config.
