protocol-aware-recovery · research · also PAR

Protocol-aware recovery

Protocol-aware recovery uses a distributed system's replication rules to recover damaged storage without violating its guarantees.

CTRL separates local fault detection from distributed recovery. It distinguishes missing, damaged and intact log entries; node-specific metadata instead uses local redundancy. Recovery assumes detectable corruption and may sacrifice availability to preserve committed data. [1]

This is a research approach, not a claim that replication alone repairs corruption. The companion analysis compares it with historical CORDS fault-injection evidence. [2]

Relations

related
Crash-corruption ambiguity, Raft, Read repair, Anti-entropy repair

Citations

  1. Alagappan et al. Protocol-Aware Recovery for Consensus-Based Storage. FAST 2018, sections 3-5. (accessed 2026-11-12)
  2. Hesela: corruption recovery needs protocol evidence (accessed 2026-11-12)

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Hesela team. Protocol-aware recovery. Hesela. 2026-11-12. https://hesela.dev/terms/protocol-aware-recovery/