MDS daemon crashes during and after upgrading ceph from RHCS 5.0z3 to RHCS 5.0z4

Solution In Progress - Updated -


  • The RHCS upgrade activity from RHCS 5.0z3(ceph version 16.2.0-146.el8cp) to RHCS 5.0z4 (ceph version 16.2.0-152.el8cp) got stopped/incomplete because the MDS daemon got crashed.
  • The daemon failed and assert with Segmentation Fault in thread "md_log_replay".
  • The upgrade was completed only after removing the failed MDS daemon.
  • Even after redeploying the MDS with the new version (ceph version 16.2.0-152.el8cp) the daemon got crashed continuously.


  • Red Hat Ceph Storage 5.0z3

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