What the data for this category looks like
Gas industry research reports mainly come from domestic energy industry associations, public utility research teams of securities firms, and official documents from local housing and urban-rural development departments. Update cadence includes monthly industry updates and quarterly in-depth reports. Most documents are in PDF format, with significant variation in single-document length. It is recommended to calculate or test based on your own samples before finalizing. Structures typically include core data tables, policy interpretations, and supply and demand forecasting modules. Fields cover total gas supply (unit: ten thousand cubic meters), total length of gas pipelines (unit: kilometers), number of households covered by residential gas use (unit: ten thousand households), and some include pipeline network topology diagrams.
What constraints do these characteristics impose on deployment and upgrade
The long-text structure, specific unit fields, and unstructured topology diagrams of gas research reports impose multiple constraints on deployment and upgrade processes. Long PDFs and topology diagrams require parsing modules that support multi-page merging and OCR. Adjust timeout parameters during deployment to adapt to parsing time. Specific unit fields require enabling custom mapping in knowledge base configuration to avoid unit confusion in retrieval results. The monthly/quarterly update cadence requires configuring incremental crawling scheduled tasks during upgrades to reduce resource usage from full synchronization. Longer single-document lengths require adjusting context retrieval segmentation thresholds to avoid truncating core business data.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Gas research reports include multi-page PDFs and topology diagrams, with longer parsing time than general documents, so extended timeout is required |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Single gas research reports may contain multiple high-definition topology diagrams, leading to larger overall upload size |
Segment Length | 800–1200 characters | Gas research reports are mostly professional long texts; too short segmentation will destroy data logic, while too long will affect retrieval accuracy |
Number of Retrieved Entries | Top 8–12 entries | Gas research report data dimensions are concentrated; too many retrieved entries will introduce irrelevant information, while too few will lead to insufficient coverage |
Similarity Threshold | Calibrated via actual testing | Low-relevance content needs to be filtered based on actual retrieval scenarios, and the matching threshold range should be adjusted according to business needs |
CRON_SCHEDULE | 0 0 2 * * * | Gas research reports are updated monthly/quarterly; performing incremental synchronization daily at 2 AM balances timeliness and resource usage |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material format, data volume, and business rules. Specific issues require case-by-case analysis. It is recommended to test on your own samples before finalizing the configuration.
Three Common Mistakes
- Issue: After deploying via nginx proxy, the original knowledge base document download link returns a 404 error. Cause: Static resource forwarding rules for nginx are not configured, and the local file path generated by FastGPT is not correctly mapped to the external access address.
- Issue: After starting docker-compose for the open-source version v4.8.21, a large model call error prompts invalid API key. Cause: The
CHAT_API_KEYenvironment variable was not correctly added to thedocker-compose.ymlfile, and the container was not rebuilt for the new configuration to take effect. - Issue: After local deployment, the team invitation function entry is not displayed in the interface. Cause: The open-source version in use does not include the team collaboration module, or the corresponding configuration switch is not enabled.
How to Verify Successful Configuration
- Upload a local gas research report PDF, wait for parsing to complete, and check if the parsed text includes preset fields such as pipeline network length and total gas supply to confirm that parsing and field mapping parameters are effective.
- Manually trigger an incremental crawling task, check the knowledge base update log to confirm that the scheduled task execution cycle matches the preset configuration.
- Submit a research report retrieval query for the gas industry, check the number of retrieved entries and matching degree of the returned results to confirm that retrieval and similarity threshold configurations meet business needs.
- Access the knowledge base original document link via the nginx proxy, confirm that the corresponding file can be downloaded normally to verify the correctness of the proxy configuration.
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.