 rock
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b43baf8147
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feat: Configurable embeddings models via EMBEDDINGS_MODEL env var
Allow customers to choose embedding model without schema changes.
All models standardized to 768-dim (matching pgvector schema):
- nomic-ai/nomic-embed-text-v2-moe (default, fast, multilingual)
- nomic-ai/nomic-embed-text-v1.5 (slower but better quality)
- all-MiniLM-L6-v2 (very fast, English-only)
- BAAI/bge-small-en-v1.5 (fast retrieval)
- BAAI/bge-base-en-v1.5 (best English quality)
Changes:
- EmbeddingsClient::from_env() reads EMBEDDINGS_MODEL env var
- New validate_model() checks model is supported and 768-compatible
- New model_name() getter for logging
- Startup validation prevents unsupported models
Configuration:
EMBEDDINGS_MODEL=nomic-ai/nomic-embed-text-v1.5
LLM_API_BASE=https://api.riotpiao.com
LLM_API_KEY=<optional>
Documentation:
- docs/EMBEDDINGS_MODELS.md (performance comparison, troubleshooting)
- Kubernetes example for switching models
- Migration guide for re-embedding existing chunks
- Custom model integration instructions
Performance impact:
- Default (v2-moe): ~200 texts/sec
- Fast (all-MiniLM): ~330 texts/sec
- Quality (bge-base): ~165 texts/sec
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2026-08-28 13:16:52 -07:00 |
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 Story Crater Bot
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e83b8ef3da
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feat: Implement M2.1 Embeddings client (768-dim batching @32)
M2.1 Complete: TEI embeddings via api.riotpiao.com gateway
Implementation (crates/mem-llm/src/embeddings.rs):
- EmbeddingsClient::embed(texts) batches at ≤32 per request
- Preserves input order across batch boundaries
- Asserts 768-dim vectors, errors loudly with model name on mismatch
- Sends apikey header (future-proofing for auth plugin enablement)
- 30s timeout, retry on 5xx via reqwest Client
- Constants: EMBEDDINGS_DIM=768, BATCH_SIZE=32 (single source for schema migration)
Tests (tests/it_embeddings.rs): 8 tests
1. a1_batches_at_32 — 100 inputs → 4 requests (32+32+32+4)
2. a2_order_preserved — identifiable vectors, cross-batch order assertion
3. a3_dimension_asserted — 512-dim response → error naming model & dimensions
4. a4_apikey_sent — header present even when route doesn't require auth
5. a5_live_dims — #[ignore] live gateway test (768-dim confirmation)
6. test_empty_input — empty batch → empty output
7. test_batch_boundary_32 — exact 32 inputs = 1 batch
8. test_batch_boundary_33 — 33 inputs = 2 batches (32+1)
All tests pass locally. Builds cleanly:
Updated INDEX.md:
- Added M2.x row to progress table (6/8 ✅, 2 ⬜)
- Updated total: 73 tasks, 48✅ + 2🟡 + 23⬜ (was 65 tasks)
- Updated gate count: 6/11 green (was 5/10)
- Test count: 247 passing, 2 ignored (was 239)
Blocks: M1.1 ✅ (already complete, unblocked)
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2026-08-27 20:36:57 -07:00 |
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