rados export/import fail

[Nagy Ákos <nagy.akos@xxxxxxxxxxxxxx>]

Hi,

I want to upgrade my ceph from jewel to luminous, and switch to bluestore.

For that I export the pools from old cluster:

rados export -p pool1 pool1.ceph

and after upgrade and osd recreation:

rados --create -p pool1 import pool1.ceph

I can import the backup without error, but when I want  to map an image, I got error:

rbd --image container1 --pool pool1 map

rbd: sysfs write failed
In some cases useful info is found in syslog - try "dmesg | tail".
rbd: map failed: (2) No such file or directory

dmesg | tail

[160606.729840] rbd: image container1 : WARNING: kernel layering is EXPERIMENTAL!
[160606.730675] libceph: tid 86731 pool does not exist

When I try to get info about the image:

rbd info pool1/container1

2017-10-16 13:18:17.404858 7f35a37fe700 -1 librbd::image::RefreshParentRequest: failed to open parent image: (2) No such file or directory
2017-10-16 13:18:17.404903 7f35a37fe700 -1 librbd::image::RefreshRequest: failed to refresh parent image: (2) No such file or directory
2017-10-16 13:18:17.404930 7f35a37fe700 -1 librbd::image::OpenRequest: failed to refresh image: (2) No such file or directory
rbd: error opening image container1: (2) No such file or directory

I check to exported image checksum after export and before import, and it's match, and I can restore three pools with one with 60 MB one with 1.2 GB and one with 25 GB of data.

The problematic has 60 GB data.

The pool store LXD container images.

Any help is highly appreciated.

-- 
Ákos

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