mirror of
https://github.com/infiniflow/ragflow.git
synced 2026-07-21 23:21:04 +08:00
2f7c2eb53c
## Summary Align the Go ingestion pipeline with Python's `image` → `img_id` persistence semantics, and unify the chunk-id computation across all paths. ### Changes **1. Image upload at chunker stage ** - Add `ImageUploader` type and `DefaultImageUploader` in `internal/ingestion/component/image_uploader.go` — the write-side counterpart to `FetchBinary`, storing raw image bytes at `(bucket=kbID, key=chunkID)`, no re-encoding. - Add `uploadOneImage` — pure upload primitive (bytes in, `img_id` out), does not touch chunk maps. - Add `uploadChunkImages` / `uploadChunkImage` — caller-side helper: decodes `image` from a chunk, uploads bytes, writes `ck["img_id"]`, `delete(ck,"image")` , bounded by a process-wide semaphore (default 10, env `MAX_CONCURRENT_MINIO`). - Wire via `imageUploadDecorator` in `register.go`: every chunker runs the upload pass at invocation time, writing `ck["id"]` before upload and dropping image bytes right after — peak memory = single chunk image lifetime. **2. Unify chunk-id computation** - Consolidate three separate id-computation paths (`component.ChunkID`, `task.ChunkID`, inline `FormatUint` in API) into one: `common.ChunkID(docID, text string)`, using `%016x` + `xxhash.Sum64String(text+docID)` (matching Python `hexdigest()`). - The chunker decorator writes `ck["id"]` via `common.ChunkID`; the persist stage (`ProcessChunksForPipeline`) falls back to the same function (`if !exists id`). - The API AddChunk path now also calls `common.ChunkID` instead of the divergent `FormatUint(xxhash.Sum64(...))` — fixing a pre-existing inconsistency. - Delete `internal/ingestion/component/chunk_id.go` and `internal/ingestion/task/chunk_builder.go` (both were pure forwarding shells). **3. Preserve `img_id` (never deleted)** - `img_id` is a persistent index field (Infinity, OB) and the only consumer-side reference for image retrieval; it is NEVER removed from the chunk map. Only `image` (raw data URL) is dropped after upload. **4. PPT parser support** Previously PPT parsing failed. Add support to parse. ### Key design decisions | Decision | Choice | |----------|--------| | Upload timing | Chunker stage (not persist), so image bytes are dropped immediately — bounds peak memory to one chunk image | | Upload concurrency | Process-wide semaphore, default 10 (matches Python `minio_limiter`), env `MAX_CONCURRENT_MINIO` | | Image encoding | Store as-is, no JPEG re-encoding (unlike Python) | | `img_id` format | `"<kb_id>-<chunk_id>"` — matches Python task_executor path | | id function | Single `common.ChunkID(docID, text)`, concatenation `text+docID` inside hash (matching Python) | | `removeInternalChunkFields` | Retains `delete(ck,"image")` as defensive fallback for non-chunker paths | ### Files touched | File | Change | |------|--------| | `internal/common/format.go` | Add `ChunkID(docID, text)` | | `internal/common/format_test.go` | Add ChunkID golden-value test | | `internal/ingestion/component/image_uploader.go` | Add `ImageUploader` type + `DefaultImageUploader` | | `internal/ingestion/component/chunker/image_upload.go` | Add `uploadOneImage`, `uploadChunkImages`, `uploadChunkImage`, `decodeChunkImage`, semaphore | | `internal/ingestion/component/chunker/image_upload_test.go` | Tests: upload/drop, skip, no-image, concurrency, missing-id error | | `internal/ingestion/component/chunker/register.go` | Add `imageUploadDecorator` (writes `ck["id"]`, runs upload) | | `internal/ingestion/task/chunk_process.go` | Use `common.ChunkID` for persist fallback | | `internal/service/chunk/chunk.go` | Use `common.ChunkID` instead of `FormatUint` | | `internal/ingestion/component/chunk_id.go` | **Deleted** (moved to `common`) | | `internal/ingestion/task/chunk_builder.go` | **Deleted** (shell, no callers left) | | `internal/ingestion/task/chunk_builder_test.go` | **Deleted** (test migrated to `common/format_test.go`) | ### Verification ``` bash build.sh --test ./internal/service/chunk/... ./internal/common/... ./internal/ingestion/component/... ./internal/ingestion/task/... → ok service/chunk / common / component / chunker / schema / task ```