Delayed job priorities

We use priorities for delayed jobs. The priorities are from 0 (highest) to 10 (lowest), default is 5.

Example priorities:

0: API calls (fast jobs user is waiting to finnish)
1: Image processing (slow jobs user is waiting to finnish)
2: Confirmation emails
3: -
4: Search indexing
5: Default
6: Escrow release / money related
7: Custom CSS compilation
8: Automatic listing confirmation
9: -
10: Reminder emails

The rule of thumb

Every job that keeps user waiting should have priority less than 5.
Every job that has run_at defined should have priority more than 5.