Reference only; verify against the target FastGPT release and deployment documentation.
What this category of data looks like
Data related to highway maintenance and road property rights management in the transportation sector mainly comes from highway maintenance management systems, bridge and tunnel monitoring systems, road patrol inspection systems, and traffic flow monitoring data. Daily documents include maintenance plans, patrol logs, disease disposal forms, road construction permits, road damage compensation forms, and similar items. The data update frequency is daily. Document structures include fields such as facility number, patrol time, disposal result, permit number, and similar items. The units for different document types vary based on business scenarios, such as mileage, area, business number, and similar items.
What constraints these characteristics impose on document parsing and chunking
Daily data is updated daily, and there are multiple document types. When importing in batches, multi-format and large-volume files must be processed, which imposes high requirements on parsing performance. Patrol logs and disease disposal forms contain multiple consecutive business records. Road construction permits and road damage compensation forms have fixed-format fields. Improper chunking rules can lead to key information being split across chunks. At the same time, the accuracy of business data is directly linked to road safety and financial compliance. The parsing process must ensure the integrity of single-chunk content, avoiding loss of core fields such as facility number and disposal time limit. In addition, parsing large-volume documents takes a long time, so parsing efficiency and content integrity must be balanced.
How to set configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | Adapt to the content length of a single patrol record and disease disposal item, avoiding splitting key single business information |
chunkSplitter | Paragraph + custom delimiter | Adapt to the fixed format of road construction permits and road damage compensation forms, preventing cross-chunk splitting of fields such as permit number and disposal time limit |
PARSE_FILE_TIMEOUT_SECONDS | 600–900 seconds | Adapt to the parsing needs of large files over 10 MB, avoiding timeout interruptions during batch imports |
UPLOAD_FILE_MAX_SIZE | 20 MB | Match the maximum size of daily imported batch documents such as maintenance plans and patrol logs |
customPdfParse | Enabled | Retain tables and structured number information in PDF documents, preventing loss of key content such as disease location and facility number |
chunkSettingMode | Manual configuration | Adjust chunking rules separately for different document types, adapting to multi-format data such as patrol logs and Excel work order forms |
Three common mistakes
- When importing a 10+ MB Word format maintenance plan document, the interface displays a parsing timeout error. The cause is that the
PARSE_FILE_TIMEOUT_SECONDSparameter is not adjusted, and the default timeout duration is insufficient for large-volume documents. - After importing an Excel format patrol log, multiple consecutive patrol records are merged into one chunk. The cause is that
chunkSplitteris not configured to split by custom delimiter. The default paragraph-based splitting cannot recognize Excel row separation rules. - When importing a PDF format disease disposal form, the disease location information in the table is not correctly extracted, and only plain text content is retained in the chunk. The cause is that
customPdfParseis not enabled, causing table data to be flattened and structured fields to be lost.
How to confirm the configuration is correct
- Upload a single 10+ MB Word format maintenance plan document, check the parsing completion time, and perform batch import operations only after confirming the time meets expectations.
- Import an Excel format patrol log, randomly select 3 consecutive records, and verify whether each record is split into an independent chunk.
- Import a PDF format road construction permit document, check whether each chunk contains structured fields such as permit number and construction scope.
- After adjusting
chunkSettingModeto manual configuration, test the chunking effect separately for different document types such as patrol logs and Excel work order forms, and confirm that key business information is not split across chunks.
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.