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Merging bcachefs

Merging bcachefs

Posted Jun 18, 2023 1:45 UTC (Sun) by developer122 (guest, #152928)
Parent article: Merging bcachefs

What is bcachefs' handling of metadata corruption like? There's plenty of mention of data checksumming and erasure coding for repair, but what about online detection and repair of corruption/issues with the filesystem's datastructures and book-keeping?

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Merging bcachefs

Posted Jun 18, 2023 16:09 UTC (Sun) by koverstreet (✭ supporter ✭, #4296) [Link] (3 responses)

We don't yet have online fsck like xfs is getting soon, but we'll detect issues at runtime and by default go emergency read only, like other filesystems.

Merging bcachefs

Posted Jun 18, 2023 20:37 UTC (Sun) by developer122 (guest, #152928) [Link] (1 responses)

Is the metatata protected by checksums or other integrity checks?

Merging bcachefs

Posted Jun 18, 2023 20:39 UTC (Sun) by developer122 (guest, #152928) [Link]

Side note: I think ZFS solves this problem by checksumming their metadata structures and always maintaining at least one duplicate of every table/list/node/etc structure?

Merging bcachefs

Posted Jun 28, 2023 0:31 UTC (Wed) by timofonic (guest, #165836) [Link]

Any plans for it? What's the priority for that feature? How difficult is to implement it and make it ready to use?


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