Reference only; verify against the target FastGPT release and deployment documentation.
What the Data for This Category Looks Like
Urban gas ledger data mainly comes from station inspection systems, user payment systems, pipeline network operation and maintenance systems, and safety inspection record systems. Inspection ledgers are updated daily per station. User payment ledgers are synchronized in real time. Pipeline network pressure ledgers are updated every 7 days. Single ledger documents include fields such as station ID, inspection time, pipeline pressure value (unit kPa), leak detection result, user ID, and payment amount. Some ledgers come with attached on-site inspection photos.
Constraints on Workflow Orchestration
The update cadences of multi-source data differ. Workflows must aggregate ledger data from different sources using time windows. This prevents aggregated results with time mismatches. Fields include pressure values with units, boolean detection results, and more. Workflows must be configured with unified unit conversion and field validation rules. There is a need to process batch ledger data. Workflows must support concurrent execution nodes. They must also validate the completeness of required fields. This prevents entries missing core information such as station ID and inspection time from entering the summary process. Gas ledgers often contain text-based inspection records. Workflows must support extraction and classification of unstructured text by large models.
Configuration Settings
| Configuration Item | Recommended Setting | Rationale for This Setting |
|---|---|---|
| Concurrent Execution Switch | Enable, set concurrency count to 3-5 | Urban gas single-batch ledger data volume is large. Concurrent processing shortens summary time |
| Variable Definition | Configure variables as station ID, inspection time, pressure value, user ID | Matches core fields of gas ledgers. Facilitates subsequent summary and report generation |
| Node Timeout Setting | 600 seconds | Ledger data aggregation involves calls to multiple source systems. Reserve sufficient response time |
| File Upload Validation | Only allow csv and txt formats. Validate existence of required fields | Prevents ledger data with non-standard formats or missing core fields from entering the workflow |
| Batch Run Node | Enable concurrent execution | Adapts to batch processing needs of multi-source ledgers. Improves workflow operation efficiency |
Three Common Configuration Mistakes
- Batch run node execution takes too long. The symptom is that the summary node times out for a single batch of 100 ledgers. The cause is that concurrent execution is not enabled. Data is processed only in a single thread.
- No model icon appears in the workflow editing interface. A network error prompt pops up when uploading ledger files. The symptoms are missing interface elements and failed upload requests. The cause is abnormal local browser cache or ineffective backend service connection configuration.
- Workflow run logs show an offset 17 syntax error. The symptom is node execution failure returning this error. The cause is that the string processing rules do not adapt to the field separators of gas ledgers. This causes index out of bounds.
How to Verify Correct Configuration
- Trigger workflow runs. Check node run logs. Confirm that the number of concurrent execution threads matches the configured range.
- Upload a standard format gas ledger csv file. Verify that the file upload validation rules can properly intercept non-standard format files.
- Run a workflow that includes multi-source data aggregation. Check that the output summary report fields match the configured
variables. - Simulate abnormal ledger data missing station ID. Verify that the workflow's field validation rules trigger an error prompt.
The values provided here are common starting points and should be measured 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.