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33 lines
1.5 KiB
Text
33 lines
1.5 KiB
Text
Change: Redesign backend error handling to improve reliability
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Restic now downloads pack files in large chunks instead of using a streaming
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download. This prevents failures due to interrupted streams. The `restore`
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command now also retries downloading individual blobs that could not be
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retrieved.
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HTTP requests that are stuck for more than two minutes while uploading or
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downloading are now forcibly interrupted. This ensures that stuck requests are
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retried after a short timeout.
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Attempts to access a missing or truncated file will no longer be retried. This
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avoids unnecessary retries in those cases. All other backend requests are
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retried for up to 15 minutes. This ensures that temporarily interrupted network
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connections can be tolerated.
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If a download yields a corrupt file or blob, then the download will be retried
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once.
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Most parts of the new backend error handling can temporarily be disabled by
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setting the environment variable `RESTIC_FEATURES=backend-error-redesign=false`.
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Note that this feature flag will be removed in the next minor restic version.
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https://github.com/restic/restic/issues/4627
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https://github.com/restic/restic/issues/4193
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https://github.com/restic/restic/pull/4605
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https://github.com/restic/restic/pull/4792
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https://github.com/restic/restic/issues/4515
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https://github.com/restic/restic/issues/1523
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https://github.com/restic/restic/pull/4520
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https://github.com/restic/restic/pull/4800
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https://github.com/restic/restic/pull/4784
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https://github.com/restic/restic/pull/4844
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