Reference only; verify against the target FastGPT release and deployment documentation.
What the Data for This Category Looks Like
Document sources for this category include on-site supervision inspection records, material acceptance inspection documents, engineering change negotiation forms, cost consulting achievement documents, and service inquiry work orders. Update rhythm adjusts dynamically with project progress. Single document length varies widely, from short inspection notes of hundreds of characters to complete supervision plans of tens of thousands of characters. Most documents contain structured fields such as project number, section information, timestamp, responsible entity, specific matter description, and processing result. Some paper documents are converted to PDF format with stamped scan images.
Constraints Imposed on Document Parsing and Chunking
The characteristics of documents in this category impose clear constraints on parsing and chunking operations. Single document length varies widely. Short inspection records do not require complex chunking. Long supervision plans and consulting reports require precise splitting to preserve semantic integrity. Some documents contain mixed stamped scan images and text. Distinction between text and image content is necessary to avoid breaking the association between stamps and their corresponding text during chunking. Documents include built-in structured fields. Chunking operations must retain field context to prevent separation between fields and their associated content. Inquiry and reply content in service inquiry work orders are tightly bound. Chunking must not disrupt their corresponding relationship.
Configuration Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | This category of documents includes short records of hundreds of characters and long reports of tens of thousands of characters. This range balances semantic integrity and retrieval efficiency |
chunkSplitter | Split by paragraph + heading | Most documents in this category include chapter headings and segmented content. Splitting by paragraph preserves the integrity of semantic units and avoids logical breaks caused by cross-paragraph splitting |
customPdfParse | Enabled | Some documents in this category are stamped scanned PDFs. Enabling custom parsing retains association information between structured fields and stamp areas |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Single files of large supervision plans or batch consulting reports have large sizes. This setting covers upload requirements for most scenarios |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Long document parsing requires longer processing time. This duration prevents parsing failure caused by timeout |
chunkSettingMode | Manual configuration | Documents in this category have large structural differences. Manual configuration allows adjustment of chunking parameters for different document types, improving adaptability |
Three Common Misconfiguration Issues
- Symptom: Structured fields are missing from parsing results, or no corresponding text appears in stamp areas after uploading stamped scanned PDFs. Cause: The
customPdfParseconfiguration is not enabled. The default parser cannot recognize structured fields and stamp-associated content in scanned PDFs. - Symptom: Tasks time out and return status code 408 when parsing large engineering consulting reports. Cause: The
PARSE_FILE_TIMEOUT_SECONDSsetting is lower than the actual parsing time required for long documents in this category, leading to early task termination. - Symptom: Inquiry questions and reply content in service inquiry work orders are split into two separate chunks. Retrieval cannot match both at the same time. Cause: The
chunkSplitteris set to split by fixed character count, without retaining paragraph-level semantic associations, leading to separation of bound question-and-answer content.
How to Verify Correct Configuration
- A typical supervision plan document is uploaded. Structured fields in the parsing results are confirmed for full retention, and corresponding text in stamp areas is verified.
- A consulting report with a volume of approximately 600 MB is submitted. The upload and parsing processes are confirmed to not trigger timeout errors.
- A service inquiry work order document is uploaded. Inquiry questions and reply content in the chunking results are confirmed to not be split into separate chunks.
- The knowledge base chunk list is viewed. Chunk lengths are confirmed to fall within the range specified by the
chunkSizeconfiguration.
The configuration values listed above are common starting points. They should be evaluated against samples relevant to the specific use case.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-28.