What this type of data looks like
Carbon steel financing daily report data primarily comes from internal financing ledgers of steel traders, exported files from bank corporate credit systems, and daily settlement reports from supply chain finance platforms. Updates occur daily; some regional summary versions are updated weekly. Most documents are in PDF or DOCX format, with a fixed structure including fields such as current date, carbon steel sub-varieties (rebar, hot-rolled coil, etc.), single financing amount, credit subject, repayment period, corresponding spot guide price, and more. The unit for amounts is uniformly ten thousand yuan, and repayment periods are marked in natural days or natural months.
What constraints do these characteristics impose on the "document parsing and chunking" link?
The fixed structure and high-frequency update nature of carbon steel financing daily reports require document parsing to adapt to standardized layouts across multiple formats (PDF, DOCX), while avoiding merging cross-variety financing entries into chunks. The characteristics of numerous sub-varieties and fields with associated units require chunking to retain the binding relationship between fields and units, preventing separation of amounts from corresponding currency and term text. Documents exported from internal systems often have merged cells and watermark obstructions; the parsing process must automatically skip non-content areas to prevent extraction of invalid fields. The daily update rhythm requires parsing timeout thresholds to match the business cycle, avoiding delays that impact subsequent workflows.
How to set the configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
chunk_size | 800–1200 characters | Matches the average length of a single financing entry plus context for carbon steel financing daily reports, avoiding splitting complete business units |
chunk_overlap | 100–150 characters | Retains contextual association between adjacent chunks, preventing information breaks across financing entries or fields |
parse_pdf_mode | layout | Adapts to structured tables and fixed layouts in daily reports, fully preserving the correspondence between fields and content |
enable_table_parse | Enabled | Extracts structured table data from daily reports, avoiding splitting table content into meaningless plain text paragraphs |
PARSE_FILE_TIMEOUT_SECONDS | 60 seconds | Matches the daily update business rhythm, avoiding failure of high-frequency tasks due to timeout |
UPLOAD_FILE_MAX_SIZE | 50 MB | Adapts to the typical file size of single carbon steel financing daily reports, preventing upload failures for oversized files |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require targeted analysis, and it is recommended to test on your own samples before finalizing settings.
Three common mistakes
- Phenomenon: Fields in parsing results are missing or empty when importing carbon steel financing daily report documents exported from internal networks. Cause: Internal network access permissions or proxy rules are not configured, causing the parsing node to fail to obtain complete document sources.
- Phenomenon: Parent-child chunking is not implemented by variety hierarchy, resulting in recall results that cannot be filtered by carbon steel sub-varieties. Cause: Corresponding parent-child chunking configuration is not enabled, or the parent block dimension is not set to variety name and the child block dimension is not set to single financing entry.
- Phenomenon: The parsed text stream received by the frontend is unformatted plain text, and the structured table and field correspondence of the daily report cannot be restored. Cause: The
enable_table_parseconfiguration is not enabled, or the PDF parsing mode is set toocr, resulting in loss of original layout and structural information.
How to confirm the configuration is correct
- Upload a standard carbon steel financing daily report DOCX file, and check whether the parsed result tables fully retain row and column structures and field correspondence.
- Check whether each entry in the chunking result is a single financing business entry, with no mixed content across varieties or fields.
- Simulate daily high-frequency upload tasks, verify the completion rate and timeout status of parsing tasks, and adjust
PARSE_FILE_TIMEOUT_SECONDSto a value that matches the business rhythm. - Check the metadata extraction items in the parsing log, and confirm that key fields such as date and variety are correctly associated with corresponding content blocks.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.