Enabled lance feature "aws" for S3-compatible storage via opendal.
BucketRegistry: added with_allow_http(true) for MinIO/non-TLS S3
endpoints (fixes "builder error" on HTTP endpoints). lakehouse.toml
gains [[storage.buckets]] name="s3:lakehouse" with S3 backend config.
lance_backend.rs: S3 bucket naming convention — buckets with name
prefix "s3:" emit s3:// URIs for Lance datasets. AWS_* env vars
in the systemd unit provide credentials to Lance's internal
object_store.
Verified end-to-end on real MinIO with real 100K × 768d vectors:
- Migrate Parquet → Lance on S3: 1.7s (vs 0.57s local)
- Build IVF_PQ: 16.4s (CPU-bound, essentially same as local)
- Search: ~58ms p50 (vs 11ms local — S3 partition reads)
- Random doc fetch: 13ms (vs 3.5ms local)
- Recall@10: 0.835 (randomized IVF_PQ, consistent with local 0.805)
- Total S3 footprint: 637 MiB (vectors + index + lance metadata)
The "public storage" claim from the PRD is now proven: the hybrid
Parquet+HNSW ⊕ Lance architecture works on S3-compatible object
storage, not just local filesystem.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
POST /vectors/lance/recall/{index} runs an existing harness through
Lance IVF_PQ search and measures recall@k against brute-force ground
truth. Uses the same EvalSet + ground_truth infrastructure as the
HNSW trial system — no new harness format needed.
First real measurement on resumes_100k_v2 (100K × 768d, 20 queries):
IVF_PQ (316 partitions, 8 bits, 48 subvectors): recall@10 = 0.805
For comparison — HNSW ec=80 es=30: recall@10 = 1.000
ADR-019 predicted "likely 0.85-0.95" — actual is 0.805. Slightly
below, but now the harness exists to iterate: increase partitions,
try ivf_hnsw_pq, tune subvectors. The measurement infrastructure
is the deliverable, not any specific recall target.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
LanceVectorStore gains build_scalar_index(column) and
has_scalar_index(column). Exposed as POST /vectors/lance/scalar-index/
{index}/{column}. activate_profile auto-builds the doc_id btree
alongside the IVF_PQ vector index when activating a Lance-backed
profile — operators get both indexes without extra API calls.
stats() now reports has_doc_id_index alongside has_vector_index.
Measured on resumes_100k_v2 (100K × 768d): random doc_id fetch
improved from ~5.4ms to ~3.5ms (35% faster). Btree build: 19ms,
+2.7 MB on disk. The remaining ~3ms is vector column materialization,
not index lookup — to close further would need a projection-only
fetch that skips the 768-float vector for text-only RAG retrieval.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
activate_profile: when profile.vector_backend == Lance, auto-migrates
from Parquet if no Lance dataset exists, auto-builds IVF_PQ if no
index attached. Reuses existing Lance dataset on subsequent activations.
profile_scoped_search: routes to Lance IVF_PQ or Parquet+HNSW based
on the profile's declared backend. Callers hit the same endpoint —
the profile abstracts which storage tier serves the query.
Verified: lance-recruiter (vector_backend=lance) and parquet-recruiter
(vector_backend=parquet) both searched the same 100K index through
POST /vectors/profile/{id}/search. Lance returned lance_ivf_pq at
25ms; Parquet returned hnsw at <1ms. Same API surface, different
backends, transparent routing.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Five threads of work landing as one milestone — all individually
verified end-to-end against real data, full release build clean,
46 unit tests pass.
## Phase 16.2 / 16.5 — autotune agent + ingest triggers
`vectord::agent` is a long-running tokio task that watches the trial
journal and autonomously proposes + runs new HNSW configs. Distinct
from `autotune::run_autotune` (synchronous one-shot grid). Triggered
on POST /vectors/agent/enqueue/{idx} or by the periodic wake; ingest
paths now push DatasetAppended events when an index's source dataset
gets re-ingested. Rate-limited (max_trials_per_hour) and cooldown-
gated so it can't saturate Ollama under live load.
The proposer is ε-greedy around the current champion: with prob 0.25
sample random from full bounds, otherwise perturb champion ± small
delta on both axes. Dedup against history. Deterministic — RNG seeded
from history.len() so the same journal state proposes the same next
config (helps offline replay debugging).
`[agent]` config section in lakehouse.toml; opt-in via enabled=true.
## Federation Layer 2 — runtime bucket lifecycle + per-index scoping
`BucketRegistry.buckets` moved to `std::sync::RwLock<HashMap>` so
buckets can be added/removed after startup. POST /storage/buckets
provisions at runtime; DELETE /storage/buckets/{name} unregisters
(refuses primary/rescue with 403). Local-backend buckets get their
root directory auto-created.
`IndexMeta.bucket` (default "primary" via serde) records each index's
home bucket. `TrialJournal` and `PromotionRegistry` now hold
Arc<BucketRegistry> + IndexRegistry; they resolve target store per-
index via IndexMeta.bucket. PromotionRegistry::list_all scans every
bucket and dedups by index_name. Pre-federation indexes keep working
unchanged — they just default to primary.
`ModelProfile.bucket: Option<String>` declares per-profile artifact
home. POST /vectors/profile/{id}/activate auto-provisions the
profile's bucket under storage.profile_root if not yet registered.
EvalSets stay primary-only for now — noted gap, low-risk to extend
later with the same resolver pattern.
## Phase 17 — VRAM-aware two-profile gate
Sidecar gains POST /admin/unload (Ollama keep_alive=0 trick — forces
immediate VRAM release), POST /admin/preload (keep_alive=5m with
empty prompt, takes the slot warm), and GET /admin/vram (combines
nvidia-smi snapshot with Ollama /api/ps). Exposed via aibridge as
unload_model / preload_model / vram_snapshot.
`VectorState.active_profile` is the GPU-slot singleton —
Arc<RwLock<Option<ActiveProfileSlot>>>. activate_profile checks for
a previous profile with a different ollama_name and unloads it
before preloading the new one; same-model reactivations skip the
unload (Ollama no-ops). New routes: POST /vectors/profile/{id}/
deactivate (unload + clear slot), GET /vectors/profile/active.
Verified live: staffing-recruiter (qwen2.5) → docs-assistant
(mistral) swap freed qwen2.5 from VRAM and loaded mistral. nomic-
embed-text persists across swaps because both profiles use it —
free optimization that fell out of the design. Scoped search
correctly 403s cross-profile in both directions.
## MySQL streaming connector
`crates/ingestd/src/my_stream.rs` mirrors pg_stream.rs for MySQL.
Pure-rust `mysql_async` driver (default-features=false to avoid C
deps). Same OFFSET pagination, same Parquet-streaming write shape.
Type mapping per ADR-010: int/bigint → Int32/Int64, decimal/float
→ Float64, tinyint(1)/bool → Boolean, everything else → Utf8 with
fallback parsers for date/time/json/uuid via Display.
POST /ingest/mysql parallel to /ingest/db. Same PII auto-detection,
same lineage capture (source_system="mysql"), same agent-trigger
hook. `redact_dsn` generalized — was hardcoded to "postgresql://"
length, now works for any scheme://user:pass@host/path URL (latent
PII leak fix for MySQL DSNs).
Verified live against MariaDB on localhost: 10 rows × 9 columns of
test data round-tripped through datatypes int/varchar/decimal/
tinyint/datetime/text. PII detection auto-flagged name + email.
Aggregation queries through DataFusion match the source values
exactly.
## Phase 18 — Hybrid Parquet+HNSW ⊕ Lance backend (ADR-019)
`vectord-lance` is a new firewall crate. Lance pulls Arrow 57 and
DataFusion 52 — incompatible with the rest of the workspace's
Arrow 55 / DataFusion 47. The firewall isolates that dep tree:
public API uses only std types (Vec<f32>, Vec<String>, Hit, Row,
*Stats), so no Arrow types cross the crate boundary and nothing
propagates to vectord. The ADR-019 path that didn't ship until now.
`vectord::lance_backend::LanceRegistry` lazy-creates a
LanceVectorStore per index, resolving bucket → URI via the
conventional local-bucket layout. `IndexMeta.vector_backend` and
`ModelProfile.vector_backend` carry the choice (default Parquet so
existing indexes unchanged).
Six routes under /vectors/lance/*:
- migrate/{idx}: convert binary-blob Parquet → Lance FixedSizeList
- index/{idx}: build IVF_PQ
- search/{idx}: vector search (embed via sidecar)
- doc/{idx}/{doc_id}: random row fetch
- append/{idx}: native fragment append
- stats/{idx}: row count + index presence
Verified live on the real resumes_100k_v2 corpus (100K × 768d):
- Migrate: 0.57s
- Build IVF_PQ index: 16.2s (matches ADR-019 bench; 14× faster than
HNSW's 230s for the same data)
- Search end-to-end (Ollama embed + Lance scan): 23-53ms
- Random doc_id fetch: 5-7ms (filter scan; faster than Parquet's
~35ms full-file scan, slower than the bench's 311us positional
take — would close that gap with a scalar btree on doc_id)
- Append 100 rows: 3.3ms / +320KB on disk vs Parquet's required
full ~330MB rewrite — the structural win
- Index survives append; both backends coexist cleanly
## Known follow-ups not in this milestone
- ModelProfile.vector_backend doesn't yet auto-route /vectors/profile/
{id}/search to Lance; callers go through /vectors/lance/* directly
- Scalar btree on doc_id (closes the 5-7ms → ~300us gap)
- vectord-lance built default-features=false → no S3 yet
- IVF_PQ recall not measured (ADR-019 caveat) — needs a Lance-aware
variant of the eval harness
- Watcher-path ingest doesn't push agent triggers (HTTP paths do)
- EvalSets still primary-only (federation gap)
- No PATCH endpoint to move an existing index between buckets
- The pre-existing storaged::append_log doctest fails to compile
(malformed `{prefix}/` parses as code fence) — pre-existing bug,
left for a focused fix
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Closes the self-iteration loop from the PRD reframe: an agent can
tune HNSW configs autonomously and the winner flows through to the
next profile activation without human intervention.
Three primitives:
1. PromotionRegistry (vectord::promotion)
- Per-index current + history at _hnsw_promotions/{index}.json
- promote(index, entry) atomically swaps current, pushes prior
onto history (capped at 50)
- rollback() pops history back onto current; clears current if
history exhausted
- config_or(index, default) — the read side used at build time,
returns promoted config if set else caller's default
- Full cache + persistence; writes are durable on return
2. Autotune (vectord::autotune)
- run_autotune(request, ...) — synchronous agent loop
- Default grid: 5 configs covering the practical range
(ec=20/40/80/80/160, es=30/30/30/60/30) with seed=42 for
reproducibility
- Every trial goes through the existing trial-journal pipeline
so autotune runs land alongside manual trials in the
"trials are data" log
- Winner: max recall first, then min p50 latency; must clear
min_recall gate (default 0.9) or no promotion happens
- Config bounds (ec ∈ [10,400], es ∈ [10,200]) reject absurd
values from the request's optional custom grid
- On winner: promote with note "autotune winner: recall=X p50=Y"
3. Wiring
- VectorState gains promotion_registry
- activate_profile now calls promotion_registry.config_or(...)
so newly-promoted configs are picked up on next activation —
the "hot-swap" is: autotune promotes -> profile activates ->
HNSW rebuilt with new config
- New endpoints:
POST /vectors/hnsw/promote/{index}/{trial_id}
?promoted_by=...¬e=...
POST /vectors/hnsw/rollback/{index}
GET /vectors/hnsw/promoted/{index}
POST /vectors/hnsw/autotune { index_name, harness,
min_recall?, grid? }
End-to-end verified on threat_intel_v1 (54 vectors):
- autogen harness 'threat_intel_smoke' (10 queries)
- POST /autotune -> 5 trials in 620ms, winner ec=20 es=30
recall=1.00 p50=64us auto-promoted
- Manual promote of ec=80 es=30 -> history depth 1
- Rollback -> back to ec=20 es=30 autotune winner
- Second rollback -> current cleared
- Re-promote + restart -> persistence verified
- Profile activation after promotion logged:
"building HNSW ef_construction=80 ef_search=30 seed=Some(42)"
proving the hot-swap loop is closed.
Deferred:
- Bayesian optimization (random-grid is fine at this config-space size)
- Append-triggered autotune (Phase 17.5 — refresh OnAppend policy
can schedule autotune after appending sufficient new rows)
- Concurrent autotune per index guard (JobTracker integration)
PRD invariants satisfied: invariant 8 (hot-swappable indexes) is now
real code — promote is atomic, rollback is always available, the
active generation is a persistent pointer not a runtime convention.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Implements PRD invariant 9 ("every reader gets its own profile") and
completes the multi-model substrate vision. Local models (or agents)
bind to a named set of datasets; activation pre-loads their vector
indexes into memory; search enforces scope.
Schema (shared::types):
- ModelProfile { id, ollama_name, description, bound_datasets,
hnsw_config, embed_model, created_at, created_by }
- ProfileHnswConfig mirrors vectord::trial::HnswConfig to avoid a
cross-crate dep cycle. Default (ec=80, es=30) matches the Phase 15
trial winner.
- bound_datasets can reference raw dataset names OR AiView names
(both register as DataFusion tables with the same name, so mixing
raw tables and PII-redacted views composes naturally)
Catalog (catalogd::registry):
- put_profile validates id is a slug (alphanumeric + -_ only) and
every binding resolves to an existing dataset or view
- Persistence at _catalog/profiles/{id}.json, loaded on rebuild
- get_profile / list_profiles / delete_profile
HTTP endpoints:
- POST /catalog/profiles (create/update)
- GET /catalog/profiles (list)
- GET/DELETE /catalog/profiles/{id}
- POST /vectors/profile/{id}/activate (HNSW hot-load)
- POST /vectors/profile/{id}/search (scope-enforced)
Activation (vectord::service::activate_profile):
- For each bound dataset, find vector indexes with matching source
- Pre-load embeddings into EmbeddingCache
- Build HNSW with profile's config
- Report warmed indexes + per-binding failures + duration
- Failures on individual bindings don't abort — "substrate keeps
working" per ADR-017
Scoped search (vectord::service::profile_scoped_search):
- Look up profile, verify index.source ∈ profile.bound_datasets
- Returns 403 with allowed bindings list if out-of-scope
- Uses HNSW if index is warm, brute-force cosine otherwise (graceful
degradation — no "must activate first" friction)
Bug fix surfaced during testing: vectord::refresh::try_update_index_meta
was a no-op for first-time indexes, so threat_intel_v1 and
kb_team_runs_v1 (both built via refresh after Phase C shipped) didn't
show up in the index registry. Now it auto-infers the source from the
index name convention (`{source}_vN`) and registers new metadata with
reasonable defaults.
End-to-end verified:
- Created security-analyst profile bound to [threat_intel]
- POST /vectors/profile/security-analyst/activate → warmed
threat_intel_v1 (54 vectors) in 156ms, HNSW built
- Within-scope search: method=hnsw, returned relevant IP indicators
- Out-of-scope: tried to search resumes_100k_v2 (source=candidates)
→ 403 "profile 'security-analyst' is not bound to 'candidates' —
allowed bindings: [\"threat_intel\"]"
- staffing-recruiter profile created bound to candidates + placements;
search without activation fell through to brute_force (graceful)
Deferred (Phase 17 followups):
- VRAM-aware activation (unload-then-load via Ollama keep_alive=0)
— Ollama already handles this; we don't need to reinvent
- Model-identity in audit trail — Phase 13 has role-based audit;
adding model_id is ~20 LOC when we want it
- Profile bucket pre-load (profile:user bucket mount) — Phase 17.5
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The chunker's &text[start..end] slice could land inside a multi-byte
UTF-8 character (e.g. narrow no-break space \u{202f}, em-dashes, smart
quotes — universal in pg-imported editorial data). Rust panics on
non-boundary string slicing. In the refresh path that panic is caught
by tokio's task machinery but somehow causes linear memory growth at
~540MB/sec until OOM at 120GB+.
Root cause: chunk boundaries computed by byte arithmetic without
checking is_char_boundary(). The existing "look for last sentence / \n
/ space" logic finds ASCII-safe positions, but the *primary* `end`
calculation `(start + chunk_size).min(text.len())` lands wherever.
Fix:
- ceil_char_boundary(s, idx) — forward-scan to the nearest valid
UTF-8 char boundary. Used at end, actual_end, and next_start.
- Iteration cap — break if iterations exceed text.len(). Any
non-progressing loop dies safely instead of burning memory.
- Forced forward advance — if overlap + boundary math produce a
next_start <= start, force +1 char to guarantee termination.
Reproduced on kb_team_runs (585 pg-imported prompts with editorial
unicode): previous run grew memory linearly to 124GB over 240s then
OOM-killed. Same request after fix: peaks at <100MB, completes in
~4m42s to produce 12,693 embeddings. /vectors/search returns
relevant results.
Regression tests added:
- handles_multibyte_utf8_at_chunk_boundary — exact \u{202f} repro
- no_infinite_loop_on_no_spaces — 5KB text, no whitespace
- no_infinite_loop_on_degenerate_params — chunk_size == overlap
Surfaced by Phase C, but pre-existed as a latent bug since Phase 7.
Any Ollama-targeted RAG corpus with non-ASCII content would have hit
this once it grew past ~13KB per document.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Implements the llms3.com-inspired pattern: embeddings refresh
asynchronously, decoupled from transactional row writes. New rows arrive,
ingest marks the vector index stale, a later refresh embeds only the
delta (doc_ids not already in the index).
Schema additions (DatasetManifest):
- last_embedded_at: Option<DateTime> - when the index was last refreshed
- embedding_stale_since: Option<DateTime> - set when data written, cleared on refresh
- embedding_refresh_policy: Option<RefreshPolicy> - Manual | OnAppend | Scheduled
Ingest paths (pipeline::ingest_file + pg_stream) call
registry.mark_embeddings_stale after writing. No-op if the dataset has
never been embedded — stale semantics only kick in once last_embedded_at
is set.
Refresh pipeline (vectord::refresh::refresh_index):
- Reads the dataset Parquet, extracts (doc_id, text) pairs
- Accepts Utf8 / Int32 / Int64 id columns (covers both CSV and pg schemas)
- Loads existing embeddings via EmbeddingCache (empty on first-time build)
- Filters to rows whose doc_id is NOT in the existing set
- Chunks (chunker::chunk_column), embeds via Ollama (batches of 32),
writes combined index, clears stale flag
Endpoints:
- POST /vectors/refresh/{dataset_name} - body {index_name, id_column,
text_column, chunk_size?, overlap?}
- GET /vectors/stale - lists datasets whose embedding_stale_since is set
End-to-end verified on threat_intel (knowledge_base.threat_intel):
- Initial refresh: 20 rows -> 20 chunks -> embedded in 2.1s,
last_embedded_at set
- Idempotent second refresh: 0 new docs -> 1.8ms (pure delta check)
- Re-ingest to 54 rows: mark_embeddings_stale fires -> stale_since set
- /vectors/stale surfaces threat_intel with timestamps + policy
- Delta refresh: 34 new docs embedded in 970ms (6x faster than full
re-embed); stale_cleared = true
Not in MVP scope:
- UPDATE semantics (same doc_id, different content) - would need
per-row content hashing
- OnAppend policy auto-trigger - just declares intent; actual scheduler
deferred
- Scheduler runtime - the Scheduled(cron) variant declares the intent so
operators can see which datasets expect what, but the cron itself is
separate
Per ADR-019: when a profile switches to vector_backend=Lance, this
refresh path benefits — Lance's native append replaces our "read all +
rewrite" Parquet rebuild pattern. Current MVP works well enough at
~500-5K rows to validate the architecture; Lance unblocks the 5M+ case.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- IndexRegistry: tracks all vector indexes with model metadata
(model_name, model_version, dimensions, build stats)
- Index metadata persisted as JSON in vectors/meta/
- Rebuilt on startup for crash recovery
- GET /vectors/indexes — list all indexes (filter by source/model)
- GET /vectors/indexes/{name} — get index metadata
- Background jobs auto-register metadata on completion
- Multi-version support: same data, different models, coexist
- Per ADR-014: enables incremental re-embed on model upgrade
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- JobTracker: create/update/complete/fail jobs with progress tracking
- POST /vectors/index now returns immediately with job_id (HTTP 202)
- Embedding runs in tokio::spawn background task
- GET /vectors/jobs/{id} returns live progress (chunks embedded, rate, ETA)
- GET /vectors/jobs lists all jobs
- Progress logged every 100 batches with chunks/sec and ETA
- 100K embedding job running successfully at 44 chunks/sec
- System stays responsive during embedding (queries in 23ms)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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