4 ms·

Foxing aspires to be an eBPF-powered replication engine for Linux filesystems

50 points by tanelpoder 6mo ago

copper-float 6mo ago
No, Foxing is one of my favorite indie-rock bands from the St. Louis area.
mrbluecoat 6mo ago
How would you replicate: rsync -avz -e "ssh" user@remote_host:/path/to/source/ /path/to/destination/ Something like this? fxcp snap export /path/to/source/ | ssh user@remote_host -t 'fxcp snap import /path/to/destination/'
yjftsjthsd-h 6mo ago
Promising; kinda feels like a hopefully-better syncthing, albeit I think one-direction? Anyways, some hopefully constructive questions that I don't see in the readme: * Is sync done in cleartext? (Or am I misunderstanding the model and this expects you to handle the network layer yourself with eg. NFS?) * How are conflicts handled? * Actually, in general where does this land on CAP? (There's a section titled "Consistency" but it doesn't really answer what I want to know) > If enable_versioning is active, the daemon creates zero-cost reflink snapshots on fsync: * How does it handle filesystems that doesn't have that feature? (XFS and BTRFS are easy, but this says it supports ext4) (And to be clear, none of these are meant as criticisms of the actual software; they're things that the user should know the answer to, not questions that have to have a specific answer)
- wilted-iris 6mo ago
  It reads to me like encryption is handled one layer below this by NFS. I would naively assume this should be set up with external changes disallowed since it is capturing and replaying fs events. I would love to see a replacement for syncthing though. Something with less config knobs, that 'just works' and handles conflicts more intelligently.
UltraSane 6mo ago
This is similar to Dell EMC RecoverPoint which duplicates every block write to a backup target.
acd 6mo ago
How does it compare to drbd? "Distributed Replicated Block Device (DRBD)[3] is a distributed replicated storage system for the Linux platform. It mirrors block devices between multiple hosts" Which I think may be technology used by clouds

50 points by tanelpoder 6mo ago

No, Foxing is one of my favorite indie-rock bands from the St. Louis area.

How would you replicate: rsync -avz -e "ssh" user@remote_host:/path/to/source/ /path/to/destination/ Something like this? fxcp snap export /path/to/source/ | ssh user@remote_host -t 'fxcp snap import /path/to/destination/'

yjftsjthsd-h 6mo ago

Promising; kinda feels like a hopefully-better syncthing, albeit I think one-direction? Anyways, some hopefully constructive questions that I don't see in the readme: * Is sync done in cleartext? (Or am I misunderstanding the model and this expects you to handle the network layer yourself with eg. NFS?) * How are conflicts handled? * Actually, in general where does this land on CAP? (There's a section titled "Consistency" but it doesn't really answer what I want to know) > If enable_versioning is active, the daemon creates zero-cost reflink snapshots on fsync: * How does it handle filesystems that doesn't have that feature? (XFS and BTRFS are easy, but this says it supports ext4) (And to be clear, none of these are meant as criticisms of the actual software; they're things that the user should know the answer to, not questions that have to have a specific answer)

wilted-iris 6mo ago
It reads to me like encryption is handled one layer below this by NFS. I would naively assume this should be set up with external changes disallowed since it is capturing and replaying fs events. I would love to see a replacement for syncthing though. Something with less config knobs, that 'just works' and handles conflicts more intelligently.

UltraSane 6mo ago

This is similar to Dell EMC RecoverPoint which duplicates every block write to a backup target.

acd 6mo ago

How does it compare to drbd? "Distributed Replicated Block Device (DRBD)[3] is a distributed replicated storage system for the Linux platform. It mirrors block devices between multiple hosts" Which I think may be technology used by clouds