Unable to get Queue Names of Rabbit MQ in Prometheus

[Chavya Khanna]

Hey folks,

I am sure this must have been answered before but i couldn't find an answer to it, just curious how do i get Queue names and number of messages in individual queue in Prometheus?

I've tried to explore "rabbitmq_queue_messages" in prometheus but that didn't help either.

Was hoping if someone could assist on it.

[Michal Kuratczyk]

Hi,

The default configuration of the default /metrics endpoint is to return aggregated metrics only. This is because potentially there could be thousands and thousands of queues (and other entities) which leads to high resource consumption to return metrics that are likely unnecessary.

Have a look at https://www.rabbitmq.com/prometheus.html#metric-aggregation

You basically have two options:

1. Use /metrics/per-object, which returns per-queue metrics

2. Set "prometheus.return_per_object_metrics = true" (effectively, this makes /metrics behave just like /metrics/per-object behaves by default)

Best,

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Michał

RabbitMQ team

[Chavya Khanna]

Thanks Michal,

Would you happen to know which metric can be used to display queue names? as i still don't seem to get "queue_list" metric

Regards,

Chavya Khanna

[Michal Kuratczyk]

Hi,

There is no queue-list metric but there are metrics about each queue (that's how Prometheus metrics are structured in general: metric_name{label1=val1,label2=val2}=X

(this is a Prometheus format, not RabbitMQ-specific metrics format). For example, I have 2 queues here, qq1 and qq2 and the following metrics:

$ curl -s localhost:15692/metrics/per-object | grep ^rabbitmq_queue_messages_ready
rabbitmq_queue_messages_ready{vhost="/",queue="qq-1"} 10
rabbitmq_queue_messages_ready{vhost="/",queue="qq-2"} 10
rabbitmq_queue_messages_ready_bytes{vhost="/",queue="qq-1"} 120
rabbitmq_queue_messages_ready_bytes{vhost="/",queue="qq-2"} 120

Best,

To view this discussion on the web, visit https://groups.google.com/d/msgid/rabbitmq-users/40489fc7-61be-49d6-a3fe-92da3792a3f0n%40googlegroups.com.

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Michał

RabbitMQ team

[Chavya Khanna]

Thanks alot Michal! You are the best! It worked like a Charm! :)