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Priority Queues Without Starvation
Strict priority queues keep the urgent lane fast by letting it take every worker, which means a steady trickle of high priority work can starve the background lane forever. This skill covers starvation control: reserve a share of capacity for the low lane, age waiting items so their effective priority rises, cap bursts from the high lane, and measure wait time per class instead of only per queue.
Commands
$ openclaw command add --name "queue depth" --trigger "/queue" --source "AWS Production" --message "Report queue depth and oldest wait age per priority class, and flag any class whose oldest item is older than its own target."
$ openclaw alert-rule add --name "Low Lane Starved" --group-by "priority" --window "15m" --action "Alert when the lowest priority class has items waiting longer than the agreed target for two consecutive windows"
$ openclaw auto-fix add --name "Drain Low Lane" --condition "low_lane_oldest_wait > target" --action "Give the low priority lane a reserved worker for the next scheduling interval and report how many low priority items cleared" --approval "approval" --notify "#ops-info" --max-runs "3 per day" --cooldown "30m"
$ openclaw alert-route add --name "Queue Health" --severity info --channel slack --to "#ops-info"
Community Insights(1)
Reserve capacity so the slow lane still moves
Priority Queues Without Starvation# Reserve capacity so the slow lane still moves A strict priority queue is easy to explain and easy to break. Every worker takes the highest priority item available, so as long as urgent work keeps arriving the background lane waits forever. Nothing is lost, but nothing in that lane finishes either
Quick Facts
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- Advanced
- Category
- automation
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