What this category of data looks like
Photovoltaic financing daily report data is primarily sourced from public filing information released by energy bureaus of all provinces and cities across the country, public announcements of listed companies, and financing project disclosures from local financial regulatory authorities. Full data from the previous day is updated daily at midnight. Each daily report document includes six core fields: project filing number, project installed capacity (unit: MWp), financing amount (unit: ten thousand yuan), fund provider, signing date, and project location. Some entries include supplementary information such as financing term and interest rate range. Data formats are mainly structured tables or batch JSON files.
Constraints imposed by these characteristics during deployment and upgrade
The daily updated data source requires configuring fixed-cycle incremental pull tasks during deployment to avoid excessive server resource usage from full pulls. The multi-source and heterogeneous data structure requires pre-configuring field mapping rules during deployment to unify fields disclosed by different platforms into standard formats. Special units such as MWp and ten thousand yuan require configuring unit verification rules during data parsing to prevent non-photovoltaic category data from being mixed in. Adjustments to financing policies may introduce new fields. Upgrades need to reserve dynamically configurable extended fields to avoid adaptation failures caused by hardcoding. Additionally, the daily data volume of photovoltaic financing projects is relatively stable. Pagination parameters for batch import must be planned in advance to avoid exceeding the system's carrying capacity with a single synchronous data volume.
How to set the configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
DATA_SYNC_INTERVAL | 86400 seconds | Matches the daily update rhythm of photovoltaic financing daily reports, balances data timeliness and pull efficiency |
PARSE_FIELD_MAPPING | Map filing number, installed capacity, and financing amount to standard fields | Adapts to the exclusive field structure of photovoltaic financing daily reports, unifies output formats of multi-source data |
MAX_PARSE_FILE_SIZE | 1000 MB | Covers the file size limit for single-batch batch imports of photovoltaic financing daily reports, adapts to industry data volume |
RECALL_TOP_K | Top 10 entries | Matches the single-page display requirements of photovoltaic financing daily reports, avoids returning excessive redundant retrieval results |
UPLOAD_FILE_MAX_SIZE | 500 MB | Adapts to the batch file size limit for locally imported photovoltaic financing daily reports |
ONE_API_AUTH_TIMEOUT | 30 seconds | Adapts to the authentication request duration of third-party data interfaces, avoids authentication failures caused by network fluctuations |
The parameter values provided on this page are all conventional recommendations used as starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require case-by-case analysis. It is recommended to test on your own samples before finalizing settings.
Three common mistakes
- Symptom: "Incorrect username or password" is returned when calling the One API authentication after deployment. Cause: The
ONE_API_AUTH_KEYparameter is not configured correctly, or the parameter value does not match the key format of the third-party interface. - Symptom:
Error response from daemonerror occurs when deploying with Docker Compose. Cause: The corresponding version of the image was not pulled in advance, or the host port is occupied, causing the container to fail to start. - Symptom: Knowledge base search response times out after upgrading to version 4.8.20. Cause: The value of the
RECALL_TOP_Kparameter was not adjusted, or the pagination pull rule for incremental synchronization was not configured, resulting in an excessively large single retrieval data volume.
How to confirm the configuration is complete
- Manually trigger a data synchronization task, check whether the synchronization log includes the core fields of the photovoltaic financing daily report, with no missing fields or format errors.
- Call the One API authentication interface, confirm that a normal response status code is returned, with no prompts related to authentication failure.
- Enter the knowledge base retrieval page, enter keywords related to photovoltaic projects, check that the update time of the returned results matches the daily release rhythm of the daily report.
- Run the docker compose ps command, confirm that all service containers are in the running state, with no abnormally exited logs.
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.