What the data for this category looks like
Residential real estate development investment research data mainly comes from land transfer announcements, construction engineering planning permit documents, commercial housing filing data, project feasibility study reports, monthly construction progress reports of competing properties, and other channels. Land and planning data is updated in real time on working days. Filing data is updated monthly. Construction progress and competitor dynamics are updated weekly or monthly. Documents include structured fields: project location longitude and latitude, floor area ratio, total construction area, land acquisition time. Their units are degrees, no unit, square meters, and YYYY-MM-DD format respectively. Documents also include unstructured content: full feasibility study PDFs, floor plan CAD files, and bidding announcement documents.
What constraints these characteristics impose on deployment and upgrade
Residential real estate development investment research data includes both structured and unstructured types. Individual file sizes are generally large. Deployment must accommodate resource requirements for large file uploads and multi-format parsing. Different data sources have significantly different update frequencies. Upgrades must support flexible configuration of incremental synchronization timing rules to avoid synchronization tasks occupying resources during business peak hours. Long document parsing takes a long time. Timeout parameters must be adjusted to prevent parsing interruptions. Structured field extraction requires additional dedicated parsing rules. The deployment phase must reserve operating resources for corresponding plugins. In addition, the periodic nature of data updates requires that existing synchronization links cannot be interrupted during upgrades. Otherwise, knowledge base data will lag behind.
How to set the configurations
| Configuration Item | Suggested Value | Basis for This Value |
|---|---|---|
| `UPLOADFILEMAX_SIZE | `2000 MB | Single files such as residential real estate development project feasibility study reports and CAD drawings are generally large, so this accommodates large file upload requirements |
| `PARSEFILETIMEOUT_SECONDS | `600 seconds | Parsing long documents such as full project feasibility study reports takes a long time, this avoids interrupting the parsing process due to timeout |
maxContext | `8000–12000 characters | Residential real estate development investment research requires associating multiple cross-cycle land, filing, and competitor data, so expand the context window to support continuous questioning |
retrieval count | Top 8–10 entries | Residential real estate development data has many dimensions, so retrieve sufficient relevant plot and competitor data to support analysis logic |
similarity threshold | `0.72–0.78 | Distinguish filing data of similar properties in the same block, avoid retrieving irrelevant content that interferes with investment research judgments |
SYNC_CRON_EXPRESSION | `0 0 2 * | Schedule daily 2 AM synchronization of monthly updated data such as land and filing, avoid business peak hours |
The parameter values provided on this page are common recommendations for starting point configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require on-site analysis. It is recommended to test on your own samples before finalizing settings.
Three common mistakes
- Phenomenon: Returned results are unrelated to previous content during consecutive questioning, and the context window is empty. Cause: The
maxContextparameter was not adjusted. The default value is too small to carry cross-document associated data for residential real estate development multi-round investment research. - Phenomenon: Port occupation or image pull failure error occurs when deploying version 4.9.7 with
docker-compose up. Cause: Default ports such as 8080 and 3000 were not reserved in advance, or the local network environment cannot access the official image repository. - Phenomenon: Unable to configure custom reference templates and prompt words, and only basic parameters are displayed in the AI advanced configuration. Cause: The used version is lower than 4.9.0. This function is only available in version 4.9.0 and above, must be enabled in the workspace, and this function cannot be enabled in the global configuration page.
How to confirm the configuration is correct
- Upload a feasibility study PDF for a residential real estate development project. Check if structured fields such as floor area ratio and construction area are correctly extracted after parsing, with no garbled characters or content truncation.
- Initiate two consecutive questions. For example, first query the annual land transfer situation of a certain block, then ask for the average price range of competing properties in that block. Check if the answer associates the block data mentioned in the previous question.
- View the running logs of the scheduled synchronization task. Confirm that the daily 2 AM incremental synchronization task does not have timeout or failure status.
- Enter the AI configuration page of the workspace. Check if the custom reference template and prompt word editing entry are displayed.
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.