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Rejoin a decommissioned CAS server root on server start - #2574

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filimonov wants to merge 11 commits into

antalya-26.6-20261008from

fix/antalya-26.6/cas-member-lifecycle-pr-c

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Rejoin a decommissioned CAS server root on server start#2574
filimonov wants to merge 11 commits into
antalya-26.6-20261008from
fix/antalya-26.6/cas-member-lifecycle-pr-c

Commits on Oct 17, 2026
- Add an allocation nonce to the CAS writer-epoch counter
  
  filimonov
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  claude
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  8c0f14f
- Record the CAS owner life and recheck the owner after a mount claim
  
  filimonov
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  claude
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  86b20da
- Keep the CAS control objects on decommission and fence the tombstone
  
  filimonov
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  claude
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  d1f1944
- Put the writer epoch into CAS S3 staging keys
  
  filimonov
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  claude
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  133ee57
- Remove the CAS epoch re-mint policy for decommission
  
  filimonov
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  claude
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  e25a828
- Keep a CAS renewal refused by a mid-renewal stop releasable
  
  filimonov
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  claude
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  93adba9
- Document the CAS member lifecycle and decommission
  
  filimonov
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  3a2641d
- Let a CAS start reclaim another uuid's terminal body of its own owner
  
  filimonov
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  ba336d2
- Show retired CAS members in system.cas_mounts
  
  filimonov
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  claude
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  b4ede03
- Rejoin a decommissioned CAS server root at server start
  
  filimonov
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  claude
  committed
  85df7b1
- Document CAS member rejoin and the retired state
  
  filimonov
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  claude
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  e203482