Reference only; verify against the target FastGPT release and deployment documentation.
What this category of data looks like
Data for this category comes from safety production supervision systems, enterprise self-inspection hazard systems, law enforcement inspection records, and accident statistics systems. The update frequency is daily. Daily documents include hazard inspection checklists, hazard management ledgers, rectification notices, review records, and major hazard supervision order forms. Inspection checklists and ledgers are mostly structured tables, containing fields such as hazard ID, location, judgment basis, rectification responsible person, and completion deadline. Rectification notices and review records are unstructured documents, containing content such as rectification requirements and review results.
What constraints do these characteristics impose on the document parsing and chunking link
Multi-source heterogeneous data formats require the parsing step to adapt to both structured tables and unstructured documents, avoiding splitting table fields or disrupting document logic. The daily updated data volume requires support for batch upload and batch parsing, and sufficient processing time must be reserved. Core information such as major hazard judgment basis and rectification responsible entity is included in the documents. During chunking, complete context of a single hazard must be retained, and related information must not be split into different chunks. There are large structural differences across different document types, so chunking rules must be flexibly adjusted to adapt to different scenarios such as inspection checklists and ledgers.
Configuration settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | Hazard inspection documents contain fixed fields and judgment basis, requiring complete information for a single hazard to be retained and avoid splitting critical content |
chunkSplitter | Split by paragraph + table header | Daily documents include structured tables and unstructured documents. Splitting by paragraph and table header preserves field integrity |
customPdfParse | Enable structured parsing mode | Most rectification notices and supervision order forms are in PDF format. Structured parsing extracts tables and text blocks to avoid garbled text |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Supports batch upload of daily law enforcement inspection record files, adapting to daily updated data volume |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Single large ledger PDF has substantial content, reserving sufficient parsing time to avoid timeout failures |
chunkSettingMode | Manual configuration | Chunking rules must be adjusted for different document types to adapt to different formats such as inspection checklists and ledgers |
Three common mistakes
- After uploading an Excel-format hazard management ledger, the generated reply contains redundant punctuation, and SQL queries return empty fields. The cause is that structured table parsing mode is not enabled, and splitting column names and data as plain text fails to identify field correspondence.
- After uploading standard specification PDF documents, Q&A accuracy is low, with key clauses split into different chunks. The cause is that default automatic chunking does not retain the document's chapter structure, so complete judgment basis cannot be associated during retrieval.
- Parsing tasks fail when batch uploading multiple large documents, with the status showing timeout. The cause is that the
PARSE_FILE_TIMEOUT_SECONDSparameter is not adjusted, and parsing time for a single file exceeds the default threshold, causing task interruption.
How to confirm the configuration is correct
- Upload a single hazard inspection checklist Excel file, check the parsed chunk results, and confirm that complete information for each hazard is not split.
- Submit a batch document parsing task, check that there are no timeout errors in the task log, confirming that the
PARSE_FILE_TIMEOUT_SECONDSparameter takes effect. - Enable
customPdfParse, upload a rectification notice PDF, and check that the parsed text retains fields such as rectification responsible person and deadline from the table. - Adjust
chunkSizeto 1000 characters, verify that the length of chunked content meets expectations, and no single hazard is split.
The values provided are common starting points and should be measured against the reader's own samples.
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.