[Bug 2089565] Re: MON and MDS crash upgrading CEPH on ubuntu 24.04 LTS

[Guillaume COEUGNET]

Hi !

As far as I know, upgrade your whole cluster to 19.2.0-0ubuntu0.24.04.2
from 19.2.0~git20240301.4c76c50-0ubuntu6 will not solve the problem.
I've tried that already and all nodes's ceph-mon and ceph-mds crashed at
start with SIGABRT. Event ceph-osd, which was succeed to start after
upgrade, is not able to repair chunks if needed.

At the moment, I've put my packages in hold as stephane said, hoping
that Ubuntu will give a convenient way to upgrade from this release
candidate version...

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Title:
  MON and MDS crash upgrading  CEPH  on ubuntu 24.04 LTS

Status in ceph package in Ubuntu:
  Confirmed

Bug description:
  This issue is a continuation of
  https://bugs.launchpad.net/ubuntu/+source/ceph/+bug/2065515

  
  On Ubuntu 24.04 lts we did upgrade Ceph to  19.2.0-0ubuntu0.24.04.1

  Previous release is : 19.2.0~git20240301.4c76c50-0ubuntu6

  whenever  upgrading (tested on 2 different clusters)  the ceph-mon
  ends up crashing repeatedly with the below stack error

  ```
   ceph version 19.2.0 (16063ff2022298c9300e49a547a16ffda59baf13) squid (stable)
   1: /lib/x86_64-linux-gnu/libc.so.6(+0x45320) [0x788409245320]
   2: pthread_kill()
   3: gsignal()
   4: abort()
   5: /lib/x86_64-linux-gnu/libstdc++.so.6(+0xa5ff5) [0x7884096a5ff5]
   6: /lib/x86_64-linux-gnu/libstdc++.so.6(+0xbb0da) [0x7884096bb0da]
   7: (std::unexpected()+0) [0x7884096a5a55]
   8: /lib/x86_64-linux-gnu/libstdc++.so.6(+0xbb391) [0x7884096bb391]
   9: (ceph::buffer::v15_2_0::list::iterator_impl<true>::copy(unsigned int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&)+0x193) [0x78840a293593]
   10: (MDSMap::decode(ceph::buffer::v15_2_0::list::iterator_impl<true>&)+0xca1) [0x78840a4c3ab1]
   11: (Filesystem::decode(ceph::buffer::v15_2_0::list::iterator_impl<true>&)+0x1c3) [0x78840a4e4303]
   12: (FSMap::decode(ceph::buffer::v15_2_0::list::iterator_impl<true>&)+0x280) [0x78840a4e6ef0]
   13: (MDSMonitor::update_from_paxos(bool*)+0x291) [0x631ac5dea801]
   14: (Monitor::refresh_from_paxos(bool*)+0x124) [0x631ac5b7a164]
   15: (Monitor::preinit()+0x98e) [0x631ac5bb2fbe]
   16: main()
   17: /lib/x86_64-linux-gnu/libc.so.6(+0x2a1ca) [0x78840922a1ca]
   18: __libc_start_main()
   19: _start()
   NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.

  ```

  
  mitigation:
  a rollback to the previous release 19.2.0~git20240301.4c76c50-0ubuntu6 is still possible to restore service

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