Introduction #
SmartPip provides a visual DAG task configuration interface, supporting drag-and-drop task orchestration, Cron scheduling, task dependency management, and more.
Core Concepts #
| Concept | Description |
|---|---|
| DAG | Directed Acyclic Graph, defines task dependencies |
| JOB | Task node, executes specific driver tasks |
| Cron | Schedule expression, defines task execution time |
| Trigger | Trigger rules, controls when tasks execute |
Configuration #
- In Data Platform → Task Schedule, create a new DAG task, save
- Click “Edit” on the left of the task list to enter the development interface
- Click the driver menu
- Double-click the first column of a configuration row to open detailed settings
Cron Expression Guide #
Cron expressions consist of 6-7 fields separated by spaces:
- Seconds (0~59)
- Minutes (0~59)
- Hours (0~23)
- Day of month (1~31)
- Month (1~12 or JAN~DEC)
- Day of week (1~7 or SUN~SAT, 1=SUN)
- Year (optional, 1970~2099)
Special characters:
*— Match any value?— No specific value (day/week only)-— Range (e.g.,9-17= 9am to 5pm)/— Step (e.g.,0/15= every 15 minutes from 0),— Enumerate (e.g.,5,20= at 5 and 20 minutes)L— Last (last day of month or last SAT)W— Nearest workday#— Nth weekday of month (e.g.,4#2= 2nd Wednesday)
Examples:
0 0 12 ? * WED— Every Wednesday at noon0 15 10 ? * MON-FRI— Mon-Fri at 10:15 AM0 0 2 1 * ?— 1st of each month at 2 AM0 15 10 L * ?— Last day of month at 10:15 AM*/5 * * * * ?— Every 5 seconds0 */1 * * * ?— Every 1 minute
For non-triggering tasks, set to None.
For one-time triggers, set to @once.