I'm using trying to use qgroups to keep track of storage occupied by
snapshots. I noticed that:
a) no two rescans can run in parallel, and there's no way to schedule
another rescan while one is running;
b) seems like it's a whole-disk operation regardless of path specified
in CLI.
I only just started to fill my new 24Tb btrfs volume using qgroups, but
rescans already take a long time, and due to (a) above I each time have
to wait for previous rescan to finish in my scripts. Can anything be
done about it, like trashing and recomputing only statistics for
specific qgroup?
Linux host 4.4.0-62-generic #83-Ubuntu SMP Wed Jan 18 14:10:15 UTC 2017
x86_64 x86_64 x86_64 GNU/Linux
btrfs-progs v4.4
--
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With Best Regards,
Marat Khalili
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