Re: Octopus dashboard: rbd-mirror page shows error for primary site

Eugen Block <eblock@xxxxxx> · Thu, 10 Sep 2020 14:05:00 +0000

Thank you, Jason.
The report can be found at https://tracker.ceph.com/issues/47390

By the way, I think your link to the rbd issues should be the other  
way around, http://tracker.ceph.com/issues/rbd gives me a 404. ;-)
This is better: https://tracker.ceph.com/projects/rbd/issues

Regards,
Eugen

Zitat von Jason Dillaman <jdillama@xxxxxxxxxx>:

On Thu, Sep 10, 2020 at 7:36 AM Eugen Block <eblock@xxxxxx> wrote:

Hi *,

I was just testing rbd-mirror on ceph version 15.2.4-864-g0f510cb110
(0f510cb1101879a5941dfa1fa824bf97db6c3d08) octopus (stable) and
noticed mgr errors on the primary site (also in version 15.2.2):

---snip---
2020-09-10T11:20:01.724+0200 7f1c1b46a700  0 [dashboard ERROR
controllers.rbd_mirror] Failed to list mirror image status rbd-pool1
Traceback (most recent call last):
   File "/usr/share/ceph/mgr/dashboard/controllers/rbd_mirroring.py",
line 259, in _get_pool_datum
     for image in mirror_image_status
   File "/usr/share/ceph/mgr/dashboard/controllers/rbd_mirroring.py",
line 259, in <listcomp>
     for image in mirror_image_status
KeyError: 'description'
2020-09-10T11:20:01.724+0200 7f1c1b46a700  0 [dashboard ERROR
viewcache] Error while calling fn=<function _get_pool_datum at
0x7f1c5ac58f28> ex='description'
Traceback (most recent call last):
   File "/usr/share/ceph/mgr/dashboard/tools.py", line 156, in run
     val = self.fn(*self.args, **self.kwargs)
   File "/usr/share/ceph/mgr/dashboard/controllers/rbd_mirroring.py",
line 259, in _get_pool_datum
     for image in mirror_image_status
   File "/usr/share/ceph/mgr/dashboard/controllers/rbd_mirroring.py",
line 259, in <listcomp>
     for image in mirror_image_status
KeyError: 'description'
2020-09-10T11:20:01.724+0200 7f1c1ec71700  0 [dashboard ERROR
viewcache] Error while calling fn=<function _get_content_data at
0x7f1c5ac610d0> ex='description'
Traceback (most recent call last):
   File "/usr/share/ceph/mgr/dashboard/tools.py", line 156, in run
     val = self.fn(*self.args, **self.kwargs)
   File "/usr/share/ceph/mgr/dashboard/controllers/rbd_mirroring.py",
line 283, in _get_content_data
     _, pool = _get_pool_datum(pool_name)
   File "/usr/share/ceph/mgr/dashboard/tools.py", line 254, in wrapper
     return rvc.run(fn, args, kwargs)
   File "/usr/share/ceph/mgr/dashboard/tools.py", line 236, in run
     raise self.exception
   File "/usr/share/ceph/mgr/dashboard/tools.py", line 156, in run
     val = self.fn(*self.args, **self.kwargs)
   File "/usr/share/ceph/mgr/dashboard/controllers/rbd_mirroring.py",
line 259, in _get_pool_datum
     for image in mirror_image_status
   File "/usr/share/ceph/mgr/dashboard/controllers/rbd_mirroring.py",
line 259, in <listcomp>
     for image in mirror_image_status
KeyError: 'description'
2020-09-10T11:20:01.724+0200 7f1c23ebb700  0 [dashboard ERROR request]
[X.X.X.X:42050] [GET] [500] [0.020s] [admin] [513.0B]
/api/block/mirroring/summary
2020-09-10T11:20:01.728+0200 7f1c23ebb700  0 [dashboard ERROR request]
[b'{"status": "500 Internal Server Error", "detail": "The server
encountered an unexpected condition which prevented it from fulfilling
the request.", "request_id": "64ea5407-171b-4f6c-862e-fc881e68fec0"}
---snip---

The mirroring itself seems to work fine, I haven't noticed issues with
the image on the secondary site. I also uploaded a screenshot of the
dashboard [1], the installation is on openSUSE Leap 15.2.

I couldn't find a tracker issue or a report in bugzilla.opensuse.org,
but before creating a ticket I wanted to ask if this is a known issue.
The rbd-mirror panel works fine on the secondary site, I assume
because there is actually an rbd-mirror daemon running. Or maybe I
just misunderstand the purpose, but if there is no mirror daemon on
site A there shouldn't be an error message, should it?

Can you create a new tracker ticket at [1]? It looks like librbd is
not returning a default "unknown" status for the local site if you
aren't running "rbd-mirror" daemons.  The dashboard is a little behind
in supporting all the latest RBD mirroring changes, in this case the
ability to see the global mirroring status from any site (local or
remote).

Regards,
Eugen

[1] https://paste.opensuse.org/36442780
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[1] http://tracker.ceph.com/issues/rbd

--
Jason

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