[lustre-discuss] zfs has native dnode accounting supported... no

[Dilger, Andreas]

On May 16, 2018, at 00:22, Hans Henrik Happe <happe at nbi.dk> wrote:
> 
> When building 2.10.4-RC1 on CentOS 7.5 I noticed this during configure:
> 
> zfs has native dnode accounting supported... no
> 
> I'm using the kmod version of ZFS 0.7.9 from the official repos.
> Shouldn't native dnode accounting work with these versions?
> 
> Is there a way to detect if a Lustre filesystem is using native dnode
> accounting?

This looks like a bug.  The Lustre code was changed to detect ZFS project
quota (which has a different function signature in ZFS 0.8) but isn't
included in the ZFS 0.7.x releases, but lost the ability to detect the old
dnode accounting function signature.

I've pushed patch https://review.whamcloud.com/32418 that should fix this.

Cheers, Andreas
--
Andreas Dilger
Lustre Principal Architect
Intel Corporation