alt Hacker News> I dropped btrfs after the second time it hosed my rootfs
btrfs fans use the "you're using it wrong" excuse a lot.
I recall a failure mode that activated when you fill the FS to 100% and their response was "you should never fill a filesystem to capacity"
Replies
thetallguyyy • yesterday at 10:01 PM
It's really a shame, though. btrfs is permanently unfinished, and zfs has the wrong license. End result is people stick with ext4 or xfs most of the time anyway.
jeffrallen • yesterday at 8:03 PM
Otoh, good luck bringing a CoW filesystem back from 100%. Delete a file? Sure, let me just make a copy of all the metadata that was pointing at it using... the zero blocks I have left.
Tradeoffs are a bitch, bitch.
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That failure mode is still there although it's been mitigated a bit. I hit it a few months ago but was able to recover after a few hours of doing various stuff.