cerb.queue.messages.open
Description
This gauge snapshots the number of available and in-flight messages in each queue, broken down by queue and status. Use it to spot stalled queues and backpressure – a queue whose open count climbs and never drains is a sign that its consumer can't keep up or has failed.
Dimensions
| Dimension | Description |
|---|---|
| queue_id | The queue the messages belong to |
| status_id | The message status: available or in-flight |
Related
See also cerb.queue.messages.processed for completed and failed message counts, which is broken down by job.
This gauge has no job_id dimension. Jobs are short-lived, so charting a gauge by job has little value – and omitting it makes the gauge cheap enough to sample more often.