What this category of data looks like
Minor metals financial report data mainly comes from annual and quarterly reports of listed companies disclosed by domestic and overseas exchanges, and monthly supply and demand reports released by industry associations. Most documents are in PDF or DOCX format. Single annual reports vary widely in length, and include fields such as production volume, inventory levels, spot prices, cost structures, and downstream application proportions. Production volume units are mostly tons (metal content), while price units are mostly yuan/ton or ten thousand yuan/ton. Update cycles are primarily quarterly and annual. Supporting industry data has a higher synchronization update frequency.
What constraints do these characteristics impose on document parsing and chunking
The long length, mixed professional fields, and differing update cycles of minor metals financial reports impose multiple constraints on document parsing and chunking. Long single annual reports are prone to content truncation during parsing. Adjust the long text segmentation logic to avoid information loss. Professional fields such as metal content and spot prices mix with general financial fields. Retain field relevance during chunking to avoid splitting that breaks business logic. Differing update frequencies and field dimensions across files require parsing logic that distinguishes regular reports from temporary announcements. It also requires adapting to field consistency checks for batch processing of multiple files.
How to set configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
UPLOAD_FILE_MAX_SIZE | 1000 MB | Single PDF of a minor metals financial report can reach hundreds of pages, corresponding to a large file size. Adapt to large file upload requirements |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Long document parsing requires more time to complete OCR and text extraction. Avoid task interruption due to mid-process timeout |
chunk_size | 800–1200 characters | Minor metals financial reports contain professional terminology and long sentences. Too short segmentation damages business logic. Too long affects retrieval accuracy |
chunk_overlap | 100–150 characters | Retain contextual association across segments. Avoid splitting professional fields such as metal content and prices |
enable_parent_child_chunk | Enable as needed | Minor metals financial reports have clear chapter hierarchies. Enabling parent-child chunking retains chapter structure and adapts to long document retrieval |
enable_batch_parse | Enabled | Parallel parsing improves overall efficiency when processing multiple financial reports in batches. Adapts to batch upload scenarios |
Three common errors
- Phenomenon: When batch uploading multiple thousand-page PDF financial reports, the parsing status of some files shows timeout. Cause: The
PARSE_FILE_TIMEOUT_SECONDSparameter was not adjusted. The default timeout duration is insufficient to complete long document parsing. - Phenomenon: Professional fields such as metal content and prices appear split across different segments in chunking results. Cause: The
chunk_sizevalue is too small. It does not adapt to the long professional sentences and field relevance of minor metals financial reports. - Phenomenon: Financial report documents stored on an internal network cannot be parsed to extract valid content. Cause: Internal network access permissions or a proxy were not configured. The parsing service cannot access internal network resources, resulting in content capture failure.
How to confirm proper configuration
- Upload a single thousand-page minor metals financial report PDF. Check the segmented content after parsing is complete, and confirm that professional fields are not excessively split.
- Batch upload multiple financial report files. Check the execution status of parsing tasks, and confirm that the parallel parsing function works correctly.
- View the parsed metadata fields. Confirm that required financial report release information, security codes and other content are not filtered or lost.
- Test internal network resource access. Confirm that the parsing service can normally obtain financial report document content stored on the internal network.
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 specific analysis, and it is recommended to test on your own samples before finalizing 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.