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---
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title: "Bugs"
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description: "Rclone Bugs and Limitations"
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---
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2019-08-04 12:43:10 +02:00
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# Bugs and Limitations
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2019-08-04 12:43:10 +02:00
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## Limitations
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2019-08-04 12:43:10 +02:00
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### Directory timestamps aren't preserved
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Rclone doesn't currently preserve the timestamps of directories. This
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is because rclone only really considers objects when syncing.
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2019-08-04 12:43:10 +02:00
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### Rclone struggles with millions of files in a directory
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Currently rclone loads each directory entirely into memory before
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using it. Since each Rclone object takes 0.5k-1k of memory this can
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take a very long time and use an extremely large amount of memory.
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2015-08-17 18:14:05 +02:00
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2019-08-04 12:43:10 +02:00
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Millions of files in a directory tend caused by software writing cloud
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storage (eg S3 buckets).
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### Bucket based remotes and folders
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Bucket based remotes (eg S3/GCS/Swift/B2) do not have a concept of
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directories. Rclone therefore cannot create directories in them which
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means that empty directories on a bucket based remote will tend to
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disappear.
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Some software creates empty keys ending in `/` as directory markers.
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Rclone doesn't do this as it potentially creates more objects and
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costs more. It may do in future (probably with a flag).
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## Bugs
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2019-09-13 19:39:23 +02:00
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Bugs are stored in rclone's GitHub project:
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* [Reported bugs](https://github.com/rclone/rclone/issues?q=is%3Aopen+is%3Aissue+label%3Abug)
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* [Known issues](https://github.com/rclone/rclone/issues?q=is%3Aopen+is%3Aissue+milestone%3A%22Known+Problem%22)
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