What the Data for This Category Looks Like
Electronic component market and yield data is sourced from public electronic component spot trading databases and original equipment manufacturer supply quotation application programming interfaces (APIs). Data updates once daily, with daily summary files generated after the day’s trading cycle ends.
Each data entry uses a structured format, including fields such as component model, supply batch, daily trading average price, benchmark cycle average price, and price difference margin. Units are respectively piece, yuan per piece, yuan per thousand pieces, etc. Each record corresponds to daily trading statistics for a single component model and single supply batch.
Constraints Imposed on Database and Operations Workflows
The fixed daily update schedule requires database synchronization tasks to match this frequency, to avoid frequent synchronization consuming server resources. The multi-source data API sourcing characteristics require configuring multi-source data verification and merging mechanisms to ensure data consistency. The requirement for unique field identifiers requires establishing corresponding indexes at the database level to improve retrieval efficiency. The structured data characteristics require verifying field integrity before data import, to avoid null values or format errors affecting subsequent market trend reports.
How to Set Configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
DATA_SYNC_CRON | 0 2 * * * | Matches the update schedule of electronic component market data generated after daily market close, avoids occupying server resources during daytime trading hours |
DB_INDEX_FIELDS | ["component_model", "supply_batch"] | Corresponds to the core retrieval dimensions of data records, improves the efficiency of market query and statistics |
PARSE_FILE_MAX_SIZE | 500 MB | Adapts to the maximum reasonable size of daily report files, avoids timeout interruptions during the import process |
DUPLICATE_REMOVE_ENABLE | true | Prevents duplicate data for the same component model and supply batch from being stored in the database, ensures the accuracy of daily report data |
DB_CONNECTION_TIMEOUT | 30 seconds | Adapts to the average response time of multi-source data APIs, avoids connection suspension consuming system resources |
RECALL_TOP_K | Top 20 entries | Meets the market report requirements for mainstream component models, avoids excessive redundant data affecting display effects |
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, and it is recommended to test on your own samples before finalizing settings.
Three Common Misconfigurations
- Symptom: Executing a join query after importing data returns an empty result, or the console reports
SQL syntax error. Cause: Field values were not escaped during import, causing punctuation contained in fields to damage the structure of SQL statements. - Symptom: Scheduled synchronization task execution fails, and the log returns a
504 Gateway Timeoutstatus code. Cause: The configuredDB_CONNECTION_TIMEOUTvalue is too short, failing to adapt to the response delay of multi-source data APIs. - Symptom: A large number of duplicate component market records appear in the database. Cause: The
DUPLICATE_REMOVE_ENABLEconfiguration was not enabled, and deduplication verification was not performed for records with the same component model and supply batch.
How to Confirm Correct Configuration
- Trigger a manual data synchronization task, check the correspondence between the stored record fields and the source data, and confirm that the matching rules have taken effect.
- Write a test SQL statement to query the daily data of a specified component model, verify that the query returns results normally and no syntax errors occur.
- View the scheduled task execution logs, confirm that the task is automatically triggered according to the configured time cycle and has no abnormal errors.
- Initiate multiple concurrent market query requests, confirm that the database connection has no abnormal interruptions.
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.