Cannot revert LVM snapshot.

ddenial · 10-27-2018, 12:37 PM

Hello

I'm not able to revert snapshot I've taken 10 min ago. I get the error

Code:

# lvs
  LV   VG Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  cnt  vg owi-aos--- 200.00g                                                    
  snap vg swi-I-s---   1.20g      cnt    100.00 

# lvconvert --merge vg/snap
  Unable to merge invalidated snapshot LV vg/snap

What could be wrong?

Any help appriciated. Thanks

rknichols · 10-27-2018, 01:24 PM

Quote:

Originally Posted by ddenial

Code:

# lvs
  LV   VG Attr       LSize   Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  cnt  vg owi-aos--- 200.00g                                                    
  snap vg swi-I-s---   1.20g      cnt    100.00

The snapshot became full and could no longer track changes to the base volume. Such a snapshot is no longer valid and cannot be used or reverted.

ddenial · 10-27-2018, 01:33 PM

Quote:

Originally Posted by rknichols

The snapshot became full and could no longer track changes to the base volume. Such a snapshot is no longer valid and cannot be used or reverted.

Thanks. But I really don't understand why it became 100%. In lvm.conf, I've given 'snapshot_autoextend_threshold = 70' and 'snapshot_autoextend_percent = 20'. It should have auto extended by itself. But it didn't. Now I've stuck with the junk that I've created after creating a snapshot.

Anyway thanks.

rknichols · 10-27-2018, 01:45 PM

Bug https://bugs.launchpad.net/ubuntu/+s...2/+bug/1424114 perhaps?