mirror of
https://github.com/restic/restic.git
synced 2024-12-27 10:17:58 +00:00
27 lines
1.4 KiB
Text
27 lines
1.4 KiB
Text
Enhancement: Improve cache handling for `restic check`
|
|
|
|
For safety reasons, restic does not use a local metadata cache for the `restic
|
|
check` command, so that data is loaded from the repository and restic can check
|
|
it's in good condition. When the cache is disabled, restic will fetch each tiny
|
|
blob needed for checking the integrity using a separate backend request. For
|
|
non-local backends, that will take a long time, and depending on the backend
|
|
(e.g. B2) may also be much more expensive.
|
|
|
|
This PR adds a few commits which will change the behavior as follows:
|
|
|
|
* When `restic check` is called without any additional parameters, it will
|
|
build a new cache in a temporary directory, which is removed at the end of
|
|
the check. This way, we'll get readahead for metadata files (so restic will
|
|
fetch the whole file when the first blob from the file is requested), but
|
|
all data is freshly fetched from the storage backend. This is the default
|
|
behavior and will work for almost all users.
|
|
|
|
* When `restic check` is called with `--with-cache`, the default on-disc cache
|
|
is used. This behavior hasn't changed since the cache was introduced.
|
|
|
|
* When `--no-cache` is specified, restic falls back to the old behavior, and
|
|
read all tiny blobs in separate requests.
|
|
|
|
https://github.com/restic/restic/issues/1665
|
|
https://github.com/restic/restic/issues/1694
|
|
https://github.com/restic/restic/pull/1696
|