What this category of data looks like
This category of data primarily originates from the 12345 citizen hotline platform, contractor business systems, official policy knowledge bases, and return visit evaluation data, with a daily update frequency. Daily processed documents include request registration forms, dispatch records, handling responses, return visit records, delay applications, return instructions, and policy knowledge base entries. Most document structures combine structured forms and unstructured text. Some policy documents are in PDF or table formats, with fields including request number, contractor unit, handling requirements, response content, and similar items. No additional statistical quantitative data is included.
What constraints do these characteristics impose on the "document parsing and chunking" link
Daily batch-updated documents require an efficient and stable parsing process to avoid delaying overall work order processing progress due to single-file parsing timeouts. Scenarios mixing structured forms and unstructured policy text need to balance both field extraction and semantic chunking requirements, without splitting content with business relevance. Scanned PDF policy documents and work order attachments with embedded tables require image text recognition capabilities; otherwise, complete policy basis content cannot be extracted. Additionally, work order handling requires accurate matching of policy clauses, so chunk length must align with the semantic integrity of policy text, avoiding overly short chunks that cause semantic breaks or overly long chunks that reduce matching accuracy.
Configuration Settings
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | Adapts to the semantic integrity of policy text and work order responses, avoiding splitting complete policy clauses or business-relevant content |
chunkSplitter | Split by paragraph + title | Matches the hierarchical structure of policy documents, facilitating subsequent accurate matching of corresponding clauses and work order requests |
customPdfParse | Enable image text recognition | Processes scanned policy documents or work order attachments with charts, extracting embedded policy basis text |
UPLOAD_FILE_MAX_SIZE | 100 MB | Meets the upload requirements for batch work order documents and policy compilation files, avoiding interception due to oversized files |
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | Addresses parsing time for large policy compilations or multi-page work order attachments, avoiding mid-parsing failures |
chunkSettingMode | Manual configuration | Adjusts chunking parameters for different document types such as structured forms and policy text, adapting to business scenarios |
Three Common Misconfigurations
- Scenario: After uploading a scanned policy PDF file, the parsing result does not extract policy text from the image. Cause: The image text recognition configuration for
customPdfParseis not enabled, so embedded image content cannot be recognized. - Scenario: Chunked policy clauses are split into multiple independent segments, and matching results cannot cover complete policy basis. Cause: The
chunkSizesetting is too small, splitting complete policy clauses into multiple unrelated text chunks. - Scenario: After uploading an Excel-format request statistics table, the parsing task times out and fails. Cause: The
PARSE_FILE_TIMEOUT_SECONDSparameter is not adjusted; the default timeout duration is insufficient to complete parsing of large table files.
How to Verify Successful Configuration
- Upload a scanned policy PDF file, and check whether the parsing result contains complete policy text content from the image.
- Upload a complete policy clause text, and confirm that the chunking result retains the full logic of the clause without arbitrary splitting.
- Upload a batch work order document under 100 MB, and verify that the parsing task completes within 5 minutes with no timeout errors.
- Check the
chunkSizeparameter in the configuration interface, and confirm that its value meets the semantic integrity requirements of the business scenario.
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.