What the data for this category looks like
Minor metal data comes primarily from professional non-ferrous metal industry information platforms, local commodity trading centers, and publicly disclosed mining enterprise information. Update frequencies fall into three categories:
- Spot prices update daily
- Inventory data updates every 7 days
- Industry supply and demand briefings update every 30 days
Documents use a single-table structured format. Each row contains full daily data for one product, with fields including 品名, 产地, 当日现货价, and 库存总量. Units are none, none, yuan/kilogram, and ton respectively.
What constraints do these characteristics impose on deployment and upgrade
These data traits create multiple constraints for deployment and upgrade workflows. Daily spot price updates require precise scheduled pull intervals. Data lag will harm marketing content timeliness otherwise. Unit differences across product categories require unified conversion rules. Without these rules, marketing content will display chaotic price information. Single-table structured documents need field mapping logic. This adapts to differing field names across data sources. Multi-source data verification logic added in version 4.11 requires retaining old version field mapping configurations during upgrades. Script changes could break historical data parsing otherwise. Do not skip intermediate version script changes during cross-version upgrades.
How to Set Configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
DATA_PULL_INTERVAL | 86400 seconds | Matches the daily update rhythm of minor metal spot data, ensuring the timeliness of marketing content |
UNIT_CONVERSION_RULE | Preset mapping table by category | Quotation units vary across minor metal categories, and unified conversion to standard units for marketing content display is required |
UPGRADE_SCRIPT_SKIP_CHECK | false | Cross-version upgrades require verifying configuration compatibility with intermediate versions, to avoid skipping necessary script changes |
PARSE_FIELD_MAPPING | Manual mapping by data source field | Field names differ across data sources, and matching to fields required for marketing content is needed |
SERVER_STORAGE_THRESHOLD | 1000 GB | The storage volume of minor metal historical data is large, and sufficient storage space must be reserved |
TIMEOUT_THRESHOLD | 300 seconds | Minor metal data pulling involves multi-source verification, and sufficient request time must be reserved |
The parameter values provided on this page are common starting points for configuration setup. 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.
Three Common Mistakes
- Phenomenon: A
400 Bad Requesterror appears after upgrading from v4.9.11 to v4.10. The cause is skipping field mapping script changes from intermediate versions. New and old configurations become incompatible. - Phenomenon: Minor metal price units display chaotically in marketing content. The cause is missing
UNIT_CONVERSION_RULEconfiguration. Raw data source units are used directly for display. - Phenomenon: Scheduled pull tasks time out. Logs show an
ETIMEDOUTerror. The cause is too small aTIMEOUT_THRESHOLDvalue. Multi-source data verification cannot complete within the configured window.
How to Confirm Correct Configuration
- Manually trigger a data pull task. Check that pulled fields match the configured
PARSE_FIELD_MAPPING. - Review scheduled task execution logs. Confirm tasks complete on time per the
DATA_PULL_INTERVALsetting. - Check marketing content displays. Confirm minor metal price units match preset standard units.
- After upgrade completion, view the system configuration page. Confirm
UPGRADE_SCRIPT_SKIP_CHECKstatus shows necessary intermediate version scripts were not skipped.
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.