Mirror/seaweedfs - seaweedfs - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
pingqiu	26a1b33c2e	feat: add A5-A8 acceptance traceability and rebuild-source evidence Cleanup: removed redundant TargetLSNAtStart from CatchUpBudget. FrozenTargetLSN on RecoverySession is the single source of truth. Acceptance traceability (acceptance_test.go): - A5: 3 evidence tests (unrecoverable gap, budget escalation, frozen target) - A6: 2 evidence tests (exact boundary, contiguity required) - A7: 3 evidence tests (snapshot history, catch-up replay, truncation) - A8: 2 evidence tests (convergence required, truncation required) Rebuild-source decision evidence: - snapshot_tail when trusted base exists - full_base when no snapshot or untrusted - 3 explicit tests 13 new tests total. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	3 days ago
pingqiu	8f5070679c	fix: make frozen target intrinsic and rebuild completion exclusive Frozen target is now unconditional: - FrozenTargetLSN field on RecoverySession, set by BeginCatchUp - RecordCatchUpProgress enforces FrozenTargetLSN regardless of Budget - Catch-up is always a bounded (R, H0] contract Rebuild completion exclusivity: - CompleteSessionByID explicitly rejects SessionRebuild by kind - Rebuild sessions can ONLY complete via CompleteRebuild Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	3 days ago
pingqiu	8e4028758f	fix: make rebuild path exclusive, enforce phase discipline, require tick for stall budget Rebuild exclusivity: - BeginCatchUp rejects SessionRebuild ("must use rebuild APIs") - RecordCatchUpProgress rejects SessionRebuild - Rebuild sessions can only be completed via CompleteRebuild - All legacy rebuild-through-catch-up paths in tests converted Phase discipline: - SelectRebuildSource requires session.Phase == PhaseHandshake - Cannot skip BeginConnect + RecordHandshake Stall budget: - RecordCatchUpProgress requires tick parameter when ProgressDeadlineTicks > 0 (no silent stall budget bypass) 3 new tests: rebuild exclusivity (catch-up APIs rejected), rebuild source requires handshake phase, stall budget requires tick. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	3 days ago
pingqiu	5b66a85f92	fix: wire rebuild FSM into sender, enforce frozen target, fix entry counting Rebuild execution path: - newRecoverySession auto-initializes RebuildState for SessionRebuild - Sender rebuild APIs: SelectRebuildSource, BeginRebuildTransfer, RecordRebuildTransferProgress, BeginRebuildTailReplay, RecordRebuildTailProgress, CompleteRebuild - All rebuild APIs are sender-authority-gated by sessionID - E2E rebuild test now drives through rebuild FSM, not catch-up APIs Bounded CatchUp enforcement: - BeginCatchUp freezes TargetLSNAtStart from session.TargetLSN - RecordCatchUpProgress rejects progress beyond frozen target - Entry counting uses LSN delta (recoveredTo - previous), not call count - Merged RecordCatchUpProgressAt into RecordCatchUpProgress (tick param) 5 new tests: target-frozen enforcement, sender-level rebuild via rebuild APIs, reject non-rebuild, reject stale ID on rebuild. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	3 days ago
pingqiu	3f0048cbd9	feat: add bounded CatchUp budget and Rebuild mode state machine (Phase 4.5 P0) Bounded CatchUp: - CatchUpBudget: MaxDurationTicks, MaxEntries, ProgressDeadlineTicks - BudgetCheck: runtime consumption tracker (StartTick, EntriesReplayed, LastProgressTick) - Sender.CheckBudget: evaluates budget, escalates to NeedsRebuild on violation - RecordCatchUpProgressAt: tracks progress tick for stall detection - BeginCatchUp accepts optional startTick for budget tracking Rebuild state machine: - RebuildSource: snapshot_tail (preferred) vs full_base (fallback) - RebuildPhase: init → source_select → transfer → tail_replay → completed\|aborted - SelectSource: chooses based on snapshot availability - Phase ordering enforced, transfer regression rejected - ReadyToComplete validates target reached 13 new tests: budget enforcement (duration, entries, stall, no-budget), sender budget integration, rebuild lifecycle (snapshot+tail, full base, abort, phase order, regression), E2E bounded catch-up → rebuild. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	3 days ago
pingqiu	90c39b549d	feat: add prototype scenario closure (Phase 04 P4) Maps V2 acceptance criteria A1-A7, A10 to enginev2 prototype evidence. Adds 4 V2-boundary scenarios against the prototype. Scenario tests: - A1: committed data survives promotion (WAL truncation boundary) - A2: uncommitted data truncated, not revived - A3: stale epoch fenced at sender + session + assignment layers - A4: short-gap catch-up with WAL-backed proof + data verification - A5: unrecoverable gap escalates to NeedsRebuild with proof - A6: recoverability boundary exact (tail +/- 1 LSN) - A7: historical data correct after tail advancement (snapshot) - A10: changed-address → invalidation → new assignment → recovery V2-boundary scenarios: - NeedsRebuild persists across topology update - catch-up does not overwrite safe data - 5 disconnect/reconnect cycles preserve sender identity - full V2 harness: 3 replicas, 3 outcomes (zero-gap, catch-up, rebuild) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	3 days ago
pingqiu	942a0b7da7	fix: strengthen IsRecoverable contiguity check and StateAt snapshot correctness IsRecoverable now verifies three conditions: - startExclusive >= tailLSN (not recycled) - endInclusive <= headLSN (within WAL) - all LSNs in range exist contiguously (no holes) StateAt now uses base snapshot captured during AdvanceTail: - returns nil for LSNs before snapshot boundary (unreconstructable) - correctly includes block state from recycled entries via snapshot 5 new tests: end-beyond-head, missing entries, state after tail advance, nil before snapshot, block last written before tail. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	3 days ago
pingqiu	c89709e47e	feat: add WAL history model and recoverability proof (Phase 04 P3) Adds minimal historical-data prototype to enginev2: - WALHistory: retained-prefix model with Append, Commit, AdvanceTail, Truncate, EntriesInRange, IsRecoverable, StateAt - MakeHandshakeResult connects WAL state to outcome classification - RecordTruncation execution API for divergent tail cleanup - CompleteSessionByID gates on truncation when required - Zero-gap requires exact equality (FlushedLSN == CommittedLSN) - Replica-ahead classified as CatchUp with mandatory truncation 15 new tests: WAL basics, provable recoverability, unprovable gap, exact boundary, truncation enforcement, WAL-backed end-to-end recovery with data verification. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	4 days ago
pingqiu	edec7098e8	feat: add V2 protocol simulator and enginev2 sender/session prototype Adds sw-block/ directory with: - distsim: protocol correctness simulator (96 tests) - cluster model with epoch fencing, barrier semantics, commit modes - endpoint identity, control-plane flow, candidate eligibility - timeout events, timer races, same-tick ordering - session ownership tracking with ID-based stale fencing - enginev2: standalone V2 sender/session implementation (63 tests) - per-replica Sender with identity-preserving reconciliation - RecoverySession with FSM phase transitions and session ID - execution APIs: BeginConnect, RecordHandshake, BeginCatchUp, RecordCatchUpProgress, CompleteSessionByID — all sender-authority-gated - recovery outcome branching: zero-gap, catch-up, needs-rebuild - assignment-intent orchestration with epoch fencing - design docs: acceptance criteria, open questions, first-slice spec, protocol development process Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	4 days ago