Comments (4)
Hard to debug this without more context. It sounds like a hang in the btrfs subsystem, maybe during send or receive. I'd check that you have the latest btrfs-progs, and a recent kernel. It could also be due to corruption in the btrfs file system.
from buttersink.
I'm experiencing such kind of things on snapshot deletion.
One old email thread fully describes my symptoms.
from buttersink.
Buttersink relies on btrfs quota feature to estimate diff sizes. If btrfs quota is disabled then it will be enabled by buttersink (but it also seems to be enabled by default on newly created FS).
Snapshot deletion can cause performance issues if quote feature is enabled.
https://www.reddit.com/r/btrfs/comments/4qz1qd/problems_with_btrfs_quota/
It looks to be a btrfs bug.
We should workaround it by adding an option to buttersink to disable any size estimation.
from buttersink.
Quoting developers conversation
https://www.spinics.net/lists/linux-btrfs/msg74737.html
Snapshot creation and backref walk (used in qgroup, relocation and
extent deletion), are two conflicting workload in fact.
from buttersink.
Related Issues (20)
- Remove destination folder if it exists HOT 4
- Migrate to python3
- Refactoring: automated unit testing HOT 2
- Btrfs <-> Btrfs transfer optimization and multiple sources HOT 7
- Store.listVolumes() unreliable when subvolid=5 mounted somewhere else
- buttersink can't rely on Received UUID uniqueness HOT 9
- Buttersink causes lock up on Kernel 4.17 HOT 3
- S3 endpoint iterates through untargeted folders HOT 1
- Partial snapshot updates? HOT 7
- empty stream is not considered valid HOT 9
- relative path while 'keeping' - no such file or directory HOT 4
- Detect snapper cleanup timer
- Issue with quota HOT 4
- buttersink fails transferring large snapshot HOT 3
- error File exists HOT 2
- Buttersink measures unrelated snapshots when syncing. HOT 1
- .bs files automatic removal HOT 2
- S3 /trash moves fail > 5GB
- What is the SSH syntax to use a different port? HOT 1
- S3 compatible storage HOT 2
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from buttersink.