What the Data for This Category Looks Like
Hotel and catering industry research report data comes primarily from public surveys by regional catering industry associations, internal operation ledgers of chain brands, and store foot traffic statistics from third-party consumer monitoring agencies. Update frequency falls into three categories: regional market overview reports are updated monthly, individual store operation reports are updated weekly, and research reports related to sudden policy changes are updated daily. Document structure includes regional consumption trends, individual store revenue breakdowns, supply chain cost structures, and holiday foot traffic fluctuation analysis. Fields include store ID, customer unit price, monthly foot traffic, and ingredient cost proportion. Individual document lengths vary significantly. It is recommended to confirm based on your own sample statistics or actual testing.
Constraints on HTTP Interfaces and External Systems
Research report data with different update frequencies requires the interface to support both scheduled synchronization and real-time pull invocation modes. This adapts to monthly, weekly, and daily update tasks. Longer document lengths require the interface to support parameter configuration for segmented upload and parsing. This avoids single request timeouts. Multi-dimensional detailed fields require the interface to support filtering and recall based on parameters such as store ID, region code, and statistical cycle. Differences in multi-source data formats require the interface to support parsing logic compatible with multiple input formats such as CSV and JSON. This adapts to research report access from different channels.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
UPLOAD_FILE_MAX_SIZE | 1000 MB | The original size of individual hotel and catering research report documents usually does not exceed 200 MB. Sufficient space must be reserved when uploading multiple documents in batches |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Parsing long documents requires longer processing time to avoid task failure caused by mid-process interruptions |
apiCollection.filter_params | ["store ID", "region code", "statistical cycle"] | The core retrieval dimensions of hotel and catering industry research reports are store, region, and time. Filtering and recalling results based on these parameters is required |
MAX_RECALL_NUM | Top 10 entries | In hotel and catering industry specific scenarios, valid research report results for a single retrieval typically number 10 or fewer |
SESSION_KEEP_ALIVE | 300 seconds | Hotel and catering industry research report retrieval usually requires analysis across multiple interface calls. Maintaining a session avoids repeated initialization |
MULTIMODAL_FILE_MAX_SIZE | 500 MB | Some research reports include multimodal content such as store photos and menu images. Limiting single-file size avoids parsing failures |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require case-by-case analysis, and it is recommended to confirm after actual testing on your own samples.
Three Common Misconfigurations
- Invoking the
apiCollectioninterface returnsInvalid URL, code: 500. The cause is that the uploaded research report file contains external data source links not added to the interface whitelist. - The interface returns
InternalError.Algo.InvalidParameter: Multimodal file size is. The cause is that the uploaded hotel store photos or menu images exceed the configured multimodal file size limit. - After the MongoDB replica set primary node drifts, the interface disconnects and cannot reconnect. The cause is that the
MONGO_CHANGE_STREAM_RECONNECTconfiguration item is not enabled.
How to Verify Successful Configuration
- Upload a single hotel and catering industry research report file, and confirm that the parsed fields returned by the interface match the preset retrieval dimensions.
- Invoke the interface with an external link not configured in the whitelist, and confirm that an interception error is returned to verify that the whitelist configuration is correct.
- Manually trigger a MongoDB replica set primary node switch, and check whether the interface automatically restores the connection to verify that the reconnection configuration takes effect.
- Initiate two consecutive API calls, and confirm that the session identifiers of the two calls match to verify that the session keep-alive configuration takes effect.
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.