### What problem does this PR solve?
Resolve#14137 .
### Problem
Graph resolution succeeds (nodes/edges merged, pagerank updated), but
the subsequent burst of Infinity write operations in `set_graph`
exhausts the connection pool with `TOO_MANY_CONNECTIONS` errors. Root
causes:
1. **Hardcoded pool size** — `infinity_conn_pool.py` hardcoded
`ConnectionPool(max_size=4)` on initial creation and `max_size=32` on
refresh. Operators cannot tune this without patching code.
2. **No retry on transient failures** — a single `TOO_MANY_CONNECTIONS`
on edge deletes or chunk inserts kills the entire resolution+community
pipeline with no retry.
### Changes
#### `common/doc_store/infinity_conn_pool.py`
- Read `ConnectionPool` `max_size` from the `INFINITY_POOL_MAX_SIZE`
environment variable (default: `4`), applied consistently to both
initial creation and refresh paths.
- Log the actual pool size on startup for easier debugging.
#### `rag/graphrag/utils.py` — `set_graph()`
- **Edge deletes**: add exponential-backoff retry (3 attempts, 1s/2s/4s
delays) so transient `TOO_MANY_CONNECTIONS` errors are retried instead
of failing the entire job. Concurrency continues to be gated by the
existing `chat_limiter`.
- **Batch inserts**: add exponential-backoff retry (3 attempts, 1s/2s/4s
delays) for the same reason.
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
---------
Signed-off-by: noob <yixiao121314@outlook.com>
### What problem does this PR solve?
Addresses review feedback on #14074 (Checkpoint mechanism for
long-running workflow jobs, issue #12494).
**Changes based on @yuzhichang's review:**
1. **Renamed `checkpoint_service.py` → `task_checkpoint.py`** as
suggested.
2. **Replaced Redis with direct docEngine queries** as suggested — the
subgraph already gets persisted to the doc store by
`generate_subgraph()`, so we just query for it instead of maintaining a
separate checkpoint in Redis. This is simpler, has no extra dependency,
and uses a single source of truth.
**Changes based on CodeRabbit review:**
3. **Fixed `source_id` query format mismatch** — subgraphs are stored
with `source_id: [doc_id]` (list), but the original query used
`source_id: doc_id` (string). Now follows the same pattern as
`does_graph_contains()` in `rag/graphrag/utils.py`: filter by
`knowledge_graph_kwd` only, then match `source_id` in Python. This
avoids ambiguity across Elasticsearch / Infinity / OceanBase backends.
### Changes
| File | Change |
|---|---|
| `api/db/services/task_checkpoint.py` (new) |
`load_subgraph_from_store()` and `has_raptor_chunks()` — docEngine-based
checkpoint queries |
| `rag/graphrag/general/index.py` | `build_one()` calls
`load_subgraph_from_store()` before running LLM extraction |
| `rag/svr/task_executor.py` | RAPTOR per-doc loop calls
`has_raptor_chunks()` before processing |
| `test/unit_test/rag/graphrag/test_checkpoint_resume.py` (new) | 10
unit tests covering subgraph loading, source_id filtering, edge cases |
### How it works
- **GraphRAG:** Before running expensive LLM entity/relation extraction
for a doc, checks the doc store for an existing subgraph (saved by a
previous interrupted run). If found, loads it directly and skips LLM
calls.
- **RAPTOR:** Before processing a doc, checks if RAPTOR chunks
(`raptor_kwd="raptor"`) already exist for it. If yes, skips.
### Testing
- 10 new unit tests — all passing
- Full existing suite: 617 passed
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
- [x] Refactoring
### What problem does this PR solve?
GraphRAG _async_chat.
### Type of change
- [x] Refactoring
- [x] Performance Improvement
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Refactor**
* Unified chat calls to an async invocation across extractors, improving
timeout handling and ensuring task IDs propagate reliably.
* **Tests**
* Added and expanded unit tests and mocks to cover extractor behavior,
timeout scenarios, and safe test-package imports, reducing regression
risk.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
fix: support dense_vector from ES fields response (ES 9.x compatibility)
- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] Configuration Chore (non-breaking change which updates
configuration)
## Summary by CodeRabbit
* **Bug Fixes**
* More accurate handling and unwrapping of dense-vector fields so
returned values have correct shapes.
* Field selection reliably limits returned data and falls back to
alternate result locations when needed.
* Use of consistent result IDs and tolerant handling when score values
are missing.
* **Chores / Configuration**
* Increased build memory and adjusted build-time flags for the frontend
build.
* Simplified runtime model/GPU checks and removed an automated runtime
GPU-install attempt.
* **Build Fixes**
* `web/vite.config.ts`: make `build.minify` and `build.sourcemap`
respect `VITE_MINIFY` and `VITE_BUILD_SOURCEMAP` env vars from
Dockerfile instead of hardcoding `terser` and `true`.
* **Environment**
* Allow stack version override and default the runtime image tag to
"latest".
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Bug Fixes**
* Correct unwrapping of dense-vector fields and reliable field selection
with fallback locations.
* Consistent use of hit-level IDs and tolerant handling when score
values are missing.
* **Chores / Configuration**
* Increased frontend build memory and added build-time minify/sourcemap
flags; build minification and sourcemap now configurable.
* Removed runtime GPU detection for model initialization; force CPU
initialization.
* **Environment**
* Allow stack version override and default runtime image tag to
"latest".
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
The `odr` variable was configured with `desc("weight_flt")` but a new
empty `OrderByExpr()` was passed to `dataStore.search()` instead,
causing the descending sort to have no effect.
### What problem does this PR solve?
In `_community_retrieval_`, the configured `OrderByExpr` with
`desc("weight_flt")` was discarded — a new empty `OrderByExpr()` was
passed to `dataStore.search()` instead, so community reports were never
sorted by weight.
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix graphrag extractor chat response parsing and skip truncated cache
values
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Add id for table tenant_llm and apply in LLMBundle.
### Type of change
- [x] Refactoring
---------
Co-authored-by: Yingfeng <yingfeng.zhang@gmail.com>
Co-authored-by: Liu An <asiro@qq.com>
### What problem does this PR solve?
Fix error when extracting the graph.
A string is expected, but a tuple was provided.
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
