What This Category of Data Looks Like
Data related to urban gas business processing mainly comes from official business guidelines of local gas operating enterprises, offline processing ledger templates, and the latest municipal gas service specifications. Updates occur irregularly, tied to local government service adjustments or gas service upgrades, with no fixed cycle. Documents are categorized by processing matters, with separate sections for installation, ownership transfer, payment, maintenance, and other items. Some sections include material lists and process node tables in table format. Fields include processing subject requirements, required material details, processing time limits, and processing locations. Units involved include workdays, copies, cubic meters, and others.
Constraints Imposed on Document Parsing and Chunking
The document structure categorized by processing matters requires that chunks cannot be split across matters. Otherwise, the logic of subsequent process guidance will break. Material lists with tables require retaining the row and column correspondence during parsing. Otherwise, material fields will be misaligned, preventing users from accessing accurate processing material information. Irregularly updated documents have large format differences, so chunking configurations must be flexible to adapt to text content of varying lengths. Nested process nodes require retaining the hierarchical relationship of nodes during chunking to avoid confusion in process logic after splitting. Some documents include time limit requirements with clear units, so unit types must be accurately identified. Confusing workdays with calendar days will affect the accuracy of subsequent process guidance.
Configuration Settings
These configuration items apply to FastGPT v4.17.0.
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
chunkSize | 800–1200 characters | The text length of a single urban gas processing matter is mostly 500–1000 characters. This range can retain the complete logic of a single matter and avoid process breaks after splitting |
chunkSplitter | Title-based splitting + paragraph-based splitting | Documents are divided into chapters by processing matters. Title-based splitting ensures each chunk corresponds to an independent processing matter and avoids cross-matter chunking |
customPdfParse | Enabled | Urban gas business documents mostly include tabular material lists. Enabling custom PDF parsing retains the row and column structure of tables and avoids misalignment of material fields |
UPLOAD_FILE_MAX_SIZE | 100 MB | A single gas business guideline document is mostly dozens of pages. 100 MB covers the needs of most batch upload document scenarios and avoids upload failures |
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | Parsing multiple documents in batch takes a long time. 300 seconds covers the parsing needs of most scenarios and avoids timeout errors |
chunkSettingMode | Manual configuration | The structure of urban gas business documents varies greatly. Manual configuration allows flexible adjustment of chunking rules to adapt to different document types |
Three Common Misconfigurations
- Scenario: When uploading an Excel material list for gas business processing, the interface prompts "file parsing failed", and some material fields are displayed as empty. Cause: Merged cells or hidden columns exist in the Excel file, and the default parsing logic cannot correctly identify the field correspondence.
- Scenario: When uploading multiple gas business documents in batch, the parsing task times out and returns a corresponding error. Cause: The
PARSE_FILE_TIMEOUT_SECONDSparameter is not adjusted, and the default duration is insufficient to cover the parsing time of batch documents. - Scenario: When initiating a gas business process consultation, the system triggers the document parsing process instead of directly returning a question and answer result. Cause: The question and answer trigger rules are not correctly configured, and natural language questions mistakenly trigger the document parsing logic.
How to Confirm Proper Configuration
- Upload a standard gas business processing document, check the parsed chunk content, and confirm that each chunk corresponds to an independent processing matter.
- Upload a gas business document containing a table, check that the parsed table retains the complete row and column structure with no field misalignment.
- Upload a single large-sized document, wait for parsing to complete, and confirm that no timeout error is triggered.
- Initiate a natural language business consultation, confirm that the system directly returns a question and answer result without triggering the document parsing process.
The values given 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.