Can export pool but can not import it

[TooMuchData]

In 11.2 and before I was able to export a pool and later import it. I would do so every few months in order to clean the fans in an external enclosure. In 11.3-U1 I can export, but import results in an error 'failed to create mountpoint'. I regained access by reloading a recently saved configuration in which the pool was mounted. I have filed an issue (https://jira.ixsystems.com/browse/NAS-105297) to which there has not yet been a response. Can anyone else reproduce this?

 

[sretalla]

You might want to look into the mountpoint for that pool...

zfs get all <poolname>

Could it be that the path there is not under /mnt?

 

[TooMuchData]

Please see below. Mountpoint is under /mnt.
Moreover, this was not a problem until 11.3-U1 and pool was updated. Perviously ran 11.2-U8. Nothing else changed.

root@freenas2:~ # zfs get all tank
NAME PROPERTY VALUE SOURCE
tank type filesystem -
tank creation Wed Mar 15 23:32 2017 -
tank used 11.5T -
tank available 6.08T -
tank referenced 176K -
tank compressratio 1.00x -
tank mounted yes -
tank quota 17.6T local
tank reservation none local
tank recordsize 128K default
tank mountpoint /mnt/tank default
tank sharenfs off default
tank checksum on default
tank compression lz4 local
tank atime on default
tank devices on default
tank exec on default
tank setuid on default
tank readonly off default
tank jailed off default
tank snapdir hidden default
tank aclmode passthrough local
tank aclinherit passthrough local
tank createtxg 1 -
tank canmount on default
tank xattr off temporary
tank copies 1 default
tank version 5 -
tank utf8only off -
tank normalization none -
tank casesensitivity sensitive -
tank vscan off default
tank nbmand off default
tank sharesmb off default
tank refquota none local
tank refreservation none local
tank guid 16041335042138191661 -
tank primarycache all default
tank secondarycache all default
tank usedbysnapshots 112K -
tank usedbydataset 176K -
tank usedbychildren 11.5T -
tank usedbyrefreservation 0 -
tank logbias latency default
tank dedup off local
tank mlslabel -
tank sync standard default
tank refcompressratio 1.00x -
tank written 112K -
tank logicalused 11.5T -
tank logicalreferenced 31K -
tank volmode default default
tank filesystem_limit none default
tank snapshot_limit none default
tank filesystem_count none default
tank snapshot_count none default
tank redundant_metadata all default
tank org.freebsd.ioc:active no local
tank org.freenas:description local
root@freenas2:~ #