Error Handling
Managing failures in workflow execution
Workflows need robust error handling to be reliable in production.
Automatic Retries
Failed steps automatically retry with exponential backoff:
| Attempt | Delay |
|---|---|
| 1st retry | 1 second |
| 2nd retry | 2 seconds |
| 3rd retry | 4 seconds |
| 4th retry | 8 seconds |
Configure max retries per step (default: 3).
Fallback Steps
Define what happens when retries are exhausted:
- Skip - Continue to next step
- Fallback - Run alternative step
- Fail - Stop workflow
Error Notifications
Get notified when workflows fail:
- Email notifications
- Slack/Telegram alerts
- Webhook callbacks
Manual Intervention
When automatic handling isn't enough:
- Pause - Workflow waits for human
- Resume - Human fixes and continues
- Retry - Re-run failed step
- Skip - Move past failure
Error Context
Failed steps capture:
- Error message
- Stack trace (if available)
- Input data
- Timestamp
- Retry count
Best Practices
- Set appropriate timeouts - Don't wait forever
- Use fallbacks - Have a plan B
- Log context - Capture data for debugging
- Alert early - Know when things break
- Test failure paths - Verify error handling works