[OmniOS-discuss] zfs receive - failed to create mountpoint

[Doug Hughes]

I used to get this more often when I had hierarchical filesystems like this.

The problem was, (from memory here, so may be slightly off), that at 
some point a replication had behaved (through failure or some other 
means) not quite optimally and there was a spare directory created 
inside the upper level filesystem where a lower level filesystem should 
be and that causes some issues.

check on the replication target in pool0 for admin_homes directory with 
or without subdirectories and clean them up. After that, the replication 
should start behaving normally again.

Side note, I use mbuffer to do my replication transfers to avoid the 
overhead (both login and encryption) of ssh. Works well. You can also 
use one of the nice tools out there like znapzend from one of our OmniOS 
release maintainers.  (others are available too - they make the job of 
managing the number of snapshots retained on primary and secondary and 
maintenance/cleanup during errors much more automatic)



On 9/4/2018 6:46 PM, Lee Damon wrote:
> I'm doing a fairly standard zfs send | ssh host zfs receive. At least, 
> I think it's fairly standard:
>
> zfs send -R stor1/admin_homes at tobesent | ssh otherhost zfs receive -dv 
> pool0
>
> I believe permissions on the receiving host are correct:
>
> ---- Permissions on pool0 --------------------------------------------
> Local+Descendent permissions:
>         group other 
> create,mount,mountpoint,nbmand,quota,receive,refquota,refreservation,reservation,setuid,sharenfs,sharesmb
>
> Everything transfers fine but at the end I get a bunch of:
>
> cannot mount '/pool0/admin_homes': failed to create mountpoint
> cannot mount '/pool0/admin_homes/subdir1: failed to create mountpoint
> cannot mount '/pool0/admin_homes/subdir2': failed to create mountpoint
> ...
>
> errors.
>
> However, I can "sudo zfs mount -a" and everything mounts fine.
>
> I can work around this by using using -dvu instead of -dv (so I don't 
> get the error) then manually mounting but I'm slightly annoyed I can't 
> get this to work "right". I suspect I'm missing a permission but I'm 
> swizzled if I can find it.
>
> Any hints gratefully received.
>
> nomad
>
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