What the data for this category looks like
Data sources for auto service financing daily reports include bulk financing applications from auto dealers, loan ledgers from financial leasing companies, and vehicle financing filing data from industry credit reporting agencies. The update cadence is every business day. Each document contains financing records from 1 to 7 business days. Document formats are primarily PDF and XLSX. PDFs are multi-page reports with fixed headers, while XLSX files use multi-row table structures with merged cells. Core fields include dealer unified social credit code, vehicle identification number (VIN), financing amount, financing term, and annualized loan interest rate. Some documents also include supplementary information such as vehicle brand and model, down payment ratio. Financing amount is measured in ten thousand yuan, and financing term is measured in months.
What constraints these characteristics impose on document parsing and chunking
Multi-format data sources require parsing tools to support both PDF text extraction and Excel table structured parsing, especially for XLSX files with merged cells. Daily update requirements demand high throughput for the parsing process, to avoid delaying subsequent data import workflows. Fixed but grouped table structures require retaining row group associations for the same dealer or same batch of financing when chunking, to prevent splitting critical business information. Fields include long strings such as VIN and numerical values with units, so chunking must bind field names to corresponding values, to avoid separation of units and values which reduces retrieval accuracy.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
PARSE_EXCEL_MERGE_CELL | Enabled | XLSX files for auto service financing daily reports often have merged headers for multiple vehicle financings from the same dealer. Enabling this configuration retains the association between merged cells and corresponding row data |
maxChunkSize | 800–1200 characters | Covers the complete field content of a single financing record, avoiding splitting critical business information such as VIN and financing amount |
UPLOAD_FILE_MAX_SIZE | 500 MB | Accommodates large daily report files containing multiple monthly summaries, preventing upload interception |
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | Meets the parsing time requirements for large files, avoiding timeout errors |
ENABLE_DOC_SOURCE | Enabled | Retains association information between chunks and the original document, meeting subsequent retrieval traceability requirements |
TABLE_PARSE_MODE | Retain row groups | Preserves the row group structure for the same dealer or same batch of financing, improving business relevance of chunk retrieval |
The parameter values provided on this page are common recommendations for starting configuration work. Actual values are affected by material format, data volume and business rules. Specific issues require specific analysis, and it is recommended to test against your own samples before finalizing settings.
Three Common Errors
- Phenomenon: In open source version v4.8.17, after deploying the Marker parsing service via docker, processing PDF financing daily reports returns
{"detail":"Error message: Connection timed out"}. Cause: TheMARKER_API_URLenvironment variable was not configured correctly, so FastGPT cannot connect to the backend parsing service. - Phenomenon: After parsing XLSX format financing daily reports, merged cell headers and corresponding row data are split into different chunks. Cause: The
PARSE_EXCEL_MERGE_CELLconfiguration was not enabled, leading to incomplete table structure parsing. - Phenomenon: When retrieving chunks of financing daily reports in the knowledge base, the original document source corresponding to the chunk cannot be displayed. Cause: The
ENABLE_DOC_SOURCEconfiguration was not enabled, so document traceability association information was not retained.
How to Confirm the Configuration Is Correct
- Upload a preset test file for auto service financing daily reports, check the parsed table content to confirm that the association of merged cells is not damaged, and verify that the
PARSE_EXCEL_MERGE_CELLconfiguration is effective. - Upload a single test file, observe the parsing completion time, adjust
PARSE_FILE_TIMEOUT_SECONDSto a reasonable range that covers actual parsing duration. - Enable document traceability related configurations, retrieve chunk content in the knowledge base, confirm that the result displays the corresponding original document source, and verify that the
ENABLE_DOC_SOURCEconfiguration is effective. - Upload a test file that meets the maximum upload limit, confirm that the parsing process is not interrupted, and verify the rationality of the upload configuration settings.
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.