Data Structure for This Category
Bridge inspection teams collect high-definition visual images, structural stress sensor data, and time-series vibration monitoring files as data sources. Update frequency aligns with on-site inspection cycles and is adjusted accordingly. Each data entry includes disease location coordinates, disease classification tags, original detection file path, detection timestamp, and unique bridge identifier. Field units cover physical quantities such as pixel coordinates, megapascals, and milliseconds. Most documents use a mix of structured JSON, unstructured images, and time-series files.
Requirements for Database and Operations Workflows
Deploy databases that support both structured queries and large file storage to handle mixed structured and unstructured data. Use a dual storage link configuration. Adjust database connection pool parameters to accommodate concurrent access peaks caused by fluctuating update frequencies tied to inspection schedules. Create targeted indexes for queries involving multi-dimensional associated fields to shorten response times. Include both structured databases and associated file storage resources in data backups. This prevents data mismatches during recovery.
Configuration Settings
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
PG_URL | postgresql://user:pass@host:5432/bridge_disease?sslmode=disable | Stores structured fields including disease tags, bridge IDs, and detection times. Supports associated queries for relational data |
MONGODB_URI | mongodb://user:pass@host:27017/bridge_files | Stores unstructured inspection images and vibration monitoring time-series files. Supports large file metadata management |
DB_MAX_LINK | 20–30 | Adapts to concurrent connection peaks during batch inspections. Prevents service interruptions caused by exhausted connections |
REDIS_URL | redis://:pass@host:6379/0 | Caches frequently queried disease classification mappings and basic bridge information. Reduces database access pressure |
| Database access whitelist | Inspection device IP ranges, background operation IPs | Only allows authorized devices and operation terminals to access the database. Mitigates unauthorized connection risks |
Three Common Misconfigurations
- Symptom: Database connection error with prompt
Access denied for user 'xxx'@'xxx', status code 1045. Cause: The external request IP of the inspection device was not added to the database whitelist. Access was blocked. - Symptom: Syntax error returned during database operations, prompt
You have an error in your SQL syntax, result count 0. Cause: The database was not configured to support multi-line query execution. Only single statement submissions are allowed. This prevents multi-statement scripts generated by AI from running normally. - Symptom: After restoring project backups, knowledge base and agent configurations do not appear. The backend prompts missing data. Cause: Only project configuration files were restored. Associated database backups and file storage data were not synchronized. This leads to mismatched business data and configurations.
How to Verify Proper Configuration
- Run a database connection test script to verify connectivity for
PG_URLandMONGODB_URI. Confirm no connection timeouts or permission errors. - Submit a single structured data entry and its associated image file. Verify normal data writing and correct association between entries.
- Simulate batch inspection data submission. Monitor database connection pool usage. Confirm
DB_MAX_LINKconfiguration adapts to concurrent peaks. - Trigger a database backup and recovery process. Verify that both structured data and unstructured files can be restored normally.
The values provided are common starting points. They should be evaluated against the reader's own samples.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-28.