What this type of data looks like
Railway and highway financing daily report data is sourced from public documents of the National Railway Construction Coordination Office, transportation departments of all provinces and municipalities, and project financing announcements. It is updated once daily. Each single record includes fields such as project name, route section, total investment amount, funded amount, fund provider, and financing completion date. Total investment amount is measured in 100 million yuan, while funded amount is measured in 10,000 yuan. Each individual document contains 300 to 800 characters. Daily batch data files include 50 to 200 valid records.
What constraints these characteristics impose on deployment and upgrade
The daily update requirement demands precise scheduled pull trigger configurations during deployment, plus data source availability check logic. This prevents missing daily data due to interface fluctuations. The single document character length range requires configuring text parsing segment thresholds. This avoids long text truncation and incomplete core field extraction. The multi-field structure with clear units requires field mapping rule configurations. This matches the system's built-in financing data fields to the original data source fields, preventing unit conversion errors. The daily batch data scale requires setting batch import concurrency limits. This avoids service lag from overly large single import volumes. The upgrade phase must retain compatible configurations for historical data sources. This prevents scheduled pull tasks from failing after version updates.
How to set configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | The parsing duration of a single railway and highway financing daily report document typically ranges from 300 to 500 seconds. Allocate sufficient time to avoid parsing interruptions |
UPLOAD_BATCH_MAX_SIZE | 200 records | Daily batch data files contain 50 to 200 valid records. Match this to the batch import limit |
MAX_CONTEXT | 1200 characters | The core field content length of a single record ranges from 800 to 1000 characters. Reserve context window to avoid content truncation |
DATA_SOURCE_SYNC_INTERVAL | 86400 seconds | The data source updates once daily. Match this to the daily report update frequency |
FIELD_MAPPING_PRECISION | Strict match | Fields in railway and highway financing daily reports have clear units. Strictly match field names and unit rules |
RECALL_TOP_K | Top 6 records | Single records have high information density. Too many recalled entries will cause context redundancy and reduce retrieval accuracy |
The parameter values provided on this page are all common recommended starting points for configuration. Actual values are affected by material format, data volume and business rules. Specific issues require targeted analysis. It is recommended to test on your own samples before finalizing settings.
Three common errors
- Symptom: After configuring nginx reverse proxy, the knowledge base original document download link returns a 404 error or fails to redirect. Cause: Did not add the correct proxy request headers in the nginx configuration, causing FastGPT to fail to generate download links with the correct domain name.
- Symptom: After docker deployment, the database and service passwords cannot be modified, or the service fails to start after modification. Cause: Did not update the corresponding environment variables such as
MYSQL_PASSWORDandADMIN_PASSWORDin the.envconfiguration file, and did not rebuild the container to load the new configuration. - Symptom: After deploying version 4.8.17 or 4.8.21, the custom financing daily report parsing logic cannot execute normally and always outputs no results. Cause: Did not enable the system's built-in custom function switch, or the function code does not match the field and unit rules of railway and highway financing daily reports.
How to verify successful configuration
- Run a manual batch import test file, check if the parsed fields fully match the original data's names and units, confirm that the field mapping configuration takes effect.
- Trigger a scheduled synchronization task, check the system logs for error messages such as data source pull failure or parsing timeout, confirm that the synchronization frequency configuration is correct.
- Access the proxied knowledge base original document link, confirm that the redirect works normally and the original file can be downloaded, confirm that the nginx proxy configuration takes effect.
- Enter the system settings page, check if the custom function switch is enabled, trigger the test function and check if the returned results conform to the financing daily report's field format.
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.