fatal database corruption with btrfs "out of space" with ~50 GB left

[Tomasz Chmielewski <tch@xxxxxxxxxxx>]

Just FYI, how dangerous running btrfs can be - we had a fatal, 
unrecoverable MySQL corruption when btrfs decided to do one of these "I 
have ~50 GB left, so let's do out of space (and corrupt some files at 
the same time, ha ha!)".

Running btrfs RAID-1 with kernel 4.14.



Tomasz Chmielewski
https://lxadm.com
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