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* fix(cluster): stop cluster-apply crash-loops from the recovery-sidecar trap A `cluster apply` carrying a schema change against a graph that has non-main branches, or an unsupported "needs backfill" migration, armed a recovery sidecar *before* calling the engine, then left it behind when the engine rejected the apply pre-movement. The server refuses to boot while any sidecar is pending, and re-running apply re-armed a fresh sidecar — an unescapable crash loop. None of the engine rejections are bugs; the trap is in the apply/serve choreography. Three coordinated changes: 1. Preview before arming the sidecar. `cluster apply` now runs `preview_schema_apply_with_options` before `write_recovery_sidecar`, so parser/planner rejections (non-main branches, unsupported plan) fail loudly without leaving recovery work behind. The post-preview engine error path now deletes the sidecar when the live schema still matches the recorded digest (nothing moved), and keeps it only on real mid-movement failure — both branches covered by new engine-failpoint tests (cluster failpoints now enable omnigraph/failpoints). 2. Per-graph quarantine at serve time instead of whole-cluster refusal. A graph-attributed pending sidecar, an unopenable graph root, a query parse failure, or an unresolvable embedding provider now quarantines just that graph (logged loudly at every boot layer) while healthy graphs serve; `/graphs` lists only ready graphs and quarantined routes 404. Cluster-global problems (missing/unreadable state, malformed or unattributable sidecars, shared-catalog or cluster-policy errors, zero healthy graphs) stay fail-fast. `--require-all-graphs` / OMNIGRAPH_REQUIRE_ALL_GRAPHS=1 restores all-or-nothing boot. 3. Backfill embedding-provider profile metadata on apply. Mirrors the existing policy-binding backfill: a pre-5A ledger missing `embedding_profile` is now detected as a metadata-only change and backfilled by a no-op apply, instead of bricking serve with `embedding_provider_profile_missing` forever. Tests: trap (no sidecar after a rejected apply), both digest-cleanup branches, per-graph quarantine (cluster + server), embedding backfill. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * docs: resilient cluster boot + recovery-sidecar trap fix Amend RFC-005 D4 readiness posture (cluster-global fail-fast vs graph-local quarantine; deviation #5 for --require-all-graphs), add the v0.7.0 release note, and update the user cluster/server/deployment docs and the OMNIGRAPH_REQUIRE_ALL_GRAPHS env var. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix(cluster): surface sidecar-cleanup failures; document severity promotion Address Greptile review on PR #284: - The pre-movement sidecar cleanup fast-path discarded `delete_object`'s result, so a transient delete failure left the graph quarantined with no signal. Add `try_delete_object` (Result-returning) and emit a `recovery_sidecar_cleanup_failed` warning diagnostic on failure; the fire-and-forget `delete_object` now delegates to it. - Document why the serve-time loop promotes every `list_recovery_sidecars` diagnostic to a cluster-fatal error (the listing only emits genuine read/parse/version failures, as warnings, whose blast radius serving cannot prove) and note the promote-by-code path if that ever changes. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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