Files
seaweedfs/sw-block
pingqiuandClaude Opus 4.6 b82df09856 feat: Phase 18 M1 — transport-backed RF2 failover runtime
M1 milestone: failover evidence crosses transport/session seam.

Adapter seam (failover_adapter.go):
- FailoverEvidenceAdapter: query-side (promotion evidence + replica summary)
- FailoverTakeoverAdapter: execution-side (prepare + gate)
- FailoverTarget: binds NodeID + both adapters
- NewInProcessFailoverTarget: factory for in-process case

Transport seam (failover_evidence_transport.go):
- FailoverEvidenceTransport: request/response interface with nodeID routing
- FailoverEvidenceHandler: server-side registration
- InMemoryFailoverEvidenceTransport: first transport impl (in-memory)
- NewHybridInProcessFailoverTarget: transport-backed evidence + local takeover

Runtime manager (runtime_manager.go):
- InProcessRuntimeManager: participant registry + ExecuteFailover entry point
- Persisted failover snapshots/results per-volume and global-last

All failover paths (session/driver/manager) now go through adapter seam.
Old FailoverParticipant preserved as compatibility wrapper only.

Phase 18 docs: phase-18.md (M1-M5 structure), log, decisions.
Design docs updated: kernel-closure-review, claim-and-evidence ledger.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-05 13:57:08 -07:00
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sw-block

Private WAL V2 and standalone block-service workspace.

Purpose:

  • keep WAL V2 design/prototype work isolated from WAL V1 production code in weed/storage/blockvol
  • allow private design notes and experiments to evolve without polluting V1 delivery paths
  • keep the future standalone sw-block product structure clean enough to split into a separate repo later if needed

Suggested layout:

  • design/: shared V2 design docs
  • prototype/: code prototypes and experiments
  • .private/: private notes, phase development, roadmap, and non-public working material

Repository direction:

  • current state: sw-block/ is an isolated workspace inside seaweedfs
  • likely future state: sw-block becomes a standalone sibling repo/product
  • design and prototype structure should therefore stay product-oriented and not depend on SeaweedFS-specific paths