[Bug 1835354] Re: disco: ceph-mgr unable to load crash module under py3

[Brian Murray]

Hello James, or anyone else affected,

Accepted ceph into disco-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/ceph/13.2.6-0ubuntu0.19.04.2 in a
few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-disco to verification-done-disco. If it does not fix
the bug for you, please add a comment stating that, and change the tag
to verification-failed-disco. In either case, without details of your
testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: ceph (Ubuntu Disco)
       Status: Triaged => Fix Committed

** Tags added: verification-needed verification-needed-disco

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https://bugs.launchpad.net/bugs/1835354

Title:
  disco: ceph-mgr unable to load crash module under py3

Status in ceph package in Ubuntu:
  Fix Released
Status in ceph source package in Disco:
  Fix Committed
Status in ceph source package in Eoan:
  Fix Released

Bug description:
  [Impact]
  ceph-mgr daemon is unable to load the crash module due.

  [Test Case]
  Deploy ceph
  Check ceph-mgr log file
  Syntax error will be seen

  [Regression Potential]
  Minimal; python 3 syntax changes are well understood and this fix is already in the newer ceph release in eoan.

  [Original Bug Report]
  On startup the ceph-mgr daemon fails to load the crash module due to invalid Python 3 syntax:

  2019-07-04 04:11:54.533 7f1af75ab300  1 mgr[py] Loading python module 'crash'
  2019-07-04 04:11:54.605 7f1af75ab300 -1 mgr[py] Module not found: 'crash'
  2019-07-04 04:11:54.605 7f1af75ab300 -1 mgr[py] Traceback (most recent call last):

    File "/usr/lib/x86_64-linux-gnu/ceph/mgr/crash/__init__.py", line 1, in <module>
      from .module import Module
    File "/usr/lib/x86_64-linux-gnu/ceph/mgr/crash/module.py", line 48
      def inner((_, meta)):
                ^
  SyntaxError: invalid syntax

  Looking at the history for this module there are a number of
  syntax/compat fixes for Python3:

  https://github.com/ceph/ceph/commit/9aa1d49583ae8fb658967c054247cac6ec2125ab#diff-9433ab33e8bbf1048734205a3a1141ed
  https://github.com/ceph/ceph/commit/bcf0f4df2db8b51c58e5ca4d411d05e2a4d081ab#diff-9433ab33e8bbf1048734205a3a1141ed
  https://github.com/ceph/ceph/commit/6dc95544512362c202535139c323717ec867e20b#diff-9433ab33e8bbf1048734205a3a1141ed

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