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wamdam / backy2

backy2: Deduplicating block based backup software for ceph/rbd, image files and devices
http://backy2.com/
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Crash when trying to restore to rbd after upgrading ceph cluster #56

Closed PeterLinder closed 4 years ago

PeterLinder commented 4 years ago

I get the following traceback. Creating the backup works, but if I test a restore, it doesn't work any more.

Tested with 2.9.17 and 2.10.5. How can I help more? Our ceph cluster has been upgraded to 14.2.8.

backy2 restore bb45182e-6332-11ea-aa86-0cc47a886a00 rdb://nvme/vm-127-disk-temp INFO: $ /usr/bin/backy2 restore bb45182e-6332-11ea-aa86-0cc47a886a00 rdb://nvme/vm-127-disk-temp ERROR: Unexpected exception ERROR: No module named 'backy2.io.rdb' Traceback (most recent call last): File "/usr/lib/python3/dist-packages/backy2/scripts/backy.py", line 740, in main func(**func_args) File "/usr/lib/python3/dist-packages/backy2/scripts/backy.py", line 101, in restore backy.restore(version_uid, target, sparse, force) File "/usr/lib/python3/dist-packages/backy2/backy.py", line 279, in restore io = self.get_io_by_source(target) File "/usr/lib/python3/dist-packages/backy2/backy.py", line 155, in get_io_by_source IOLib = importlib.import_module('backy2.io.{}'.format(scheme)) File "/usr/lib/python3.5/importlib/init.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "", line 986, in _gcd_import File "", line 969, in _find_and_load File "", line 956, in _find_and_load_unlocked ImportError: No module named 'backy2.io.rdb' INFO: Backy failed.

wamdam commented 4 years ago

Looks like the rbd module is missing. Very strange. Could you reinstall?

PeterLinder commented 4 years ago

I did reinstall, twice actually, from the .deb file.

Since creating the backup works (reading rbd) and there has been changes to our ceph cluster I'm thinking that I'm not allowed to write (for some reason) and the error message is somehow wrong. Or what else could be the difference between reading from ceph and writing to it?

wamdam commented 4 years ago

Heh, typo. You need to restore to rbd, not rdb.

PeterLinder commented 4 years ago

Ahhhh! I will go bury myself now.