RabbitMQ Metrics

Introduction

This section describes metrics reported by DMS for RabbitMQ to Cloud Eye as well as their namespaces and dimensions. You can use the Cloud Eye console or APIs to query the metrics and alarms of RabbitMQ instances. You can also view the metrics on the Monitoring Details page on the DMS (for RabbitMQ) console.

Namespace

SYS.DMS

Instance Metrics

**Table 1** Instance metrics
Metric ID	Metric Name	Description	Value Range	Unit	Conversion Rule	Monitored Object (Dimension)	Monitoring Period (Raw Data)
connections	Connections	Number of connections in the RabbitMQ instance	≥ 0	Count	N/A	RabbitMQ instance	1 minute
channels	Channels	Number of channels in the RabbitMQ instance	0–2047	Count	N/A	RabbitMQ instance	1 minute
queues	Queues	Number of queues in the RabbitMQ instance	0–7,000	Count	N/A	RabbitMQ instance	1 minute
consumers	Consumers	Number of consumers in the RabbitMQ instance	0–280,000	Count	N/A	RabbitMQ instance	1 minute
messages_ready	RabbitMQ instance Available Messages	Number of messages that can be consumed in the RabbitMQ instance	0–10,000,000	Count	N/A	RabbitMQ instance	1 minute
messages_unacknowledged	Unacknowledged Messages	Total number of messages that have been consumed but not acknowledged in a RabbitMQ instance	0–10,000,000	Count	N/A	RabbitMQ instance	1 minute
publish	Production Rate	Rate at which messages are produced in the RabbitMQ instance	0–25,000	Count/s	N/A	RabbitMQ instance	1 minute
deliver	Retrieval Rate (Manual Ack)	Rate at which messages are consumed (in the manual acknowledgment scenario) in a RabbitMQ instance	0–25,000	Count/s	N/A	RabbitMQ instance	1 minute
deliver_no_ack	Retrieval Rate (Auto Ack)	Rate at which messages are consumed (in the automatic acknowledgment scenario) in a RabbitMQ instance	0–50,000	Count/s	N/A	RabbitMQ instance	1 minute
connections_states_running	Normal Connections	Number of starting, tuning, opening, and running connections in the instance	≥ 0	Count	N/A	RabbitMQ instance	1 minute
connections_states_flow	Flow Connections	Number of flow connections in the instance	≥ 0	Count	N/A	RabbitMQ instance	1 minute
connections_states_block	Blocked/Blocking Connections	Number of blocking and blocked connections in the instance	≥ 0	Count	N/A	RabbitMQ instance	1 minute
connections_states_close	Closed/Closing Connections	Number of closing and closed connections in the instance	≥ 0	Count	N/A	RabbitMQ instance	1 minute
channels_states_running	Normal Channels	Number of starting, tuning, opening, and running channels in the instance	≥ 0	Count	N/A	RabbitMQ instance	1 minute
channels_states_flow	Flow Channels	Number of flow channels in the instance	≥ 0	Count	N/A	RabbitMQ instance	1 minute
channels_states_block	Blocked/Blocking Channels	Number of blocking and blocked channels in the instance	≥ 0	Count	N/A	RabbitMQ instance	1 minute
channels_states_close	Closed/Closing Channels	Number of closing and closed channels in the instance	≥ 0	Count	N/A	RabbitMQ instance	1 minute
queues_states_running	Normal Queues	Number of running queues in the instance	≥ 0	Count	N/A	RabbitMQ instance	1 minute
queues_states_flow	Flow Queues	Number of flow queues in the instance	≥ 0	Count	N/A	RabbitMQ instance	1 minute

Broker Metrics

**Table 2** Broker metrics
Metric ID	Metric Name	Description	Value Range	Unit	Conversion Rule	Monitored Object (Dimension)	Monitoring Period (Raw Data)
fd_used	File Handles	Number of file handles used by RabbitMQ in the node	0–65,535	Count	N/A	RabbitMQ instance node	1 minute
socket_used	Socket Connections	Number of socket connections used by RabbitMQ in the node	0–50,000	Count	N/A	RabbitMQ instance node	1 minute
proc_used	Erlang Processes	Number of Erlang processes used by RabbitMQ in the node	0–1,048,576	Count	N/A	RabbitMQ instance node	1 minute
mem_used	Memory Usage	Memory usage of RabbitMQ in the node	0–32,000,000,000	Byte	1024(IEC)	RabbitMQ instance node	1 minute
disk_free	Available Memory	Available memory of RabbitMQ in the node	0–500,000,000,000	Byte	1024(IEC)	RabbitMQ instance node	1 minute
rabbitmq_alive	Node Alive	Whether the RabbitMQ node is alive	1: alive 0: not alive	N/A	N/A	RabbitMQ instance node	1 minute
rabbitmq_disk_usage	Disk Capacity Usage	Disk usage of the RabbitMQ VM	0~100	%	N/A	RabbitMQ instance node	1 minute
rabbitmq_cpu_usage	CPU Usage	CPU usage of the RabbitMQ VM	0~100	%	N/A	RabbitMQ instance node	1 minute
rabbitmq_cpu_core_load	Average Load per CPU Core	Average load of each CPU core of the RabbitMQ VM	> 0	N/A	N/A	RabbitMQ instance node	1 minute
rabbitmq_memory_usage	Memory usage of the RabbitMQ VM	Memory usage of the RabbitMQ VM Before September 2025, Memory usage = Used memory of the VM/Total memory of the VM September 2025 and later, Memory usage = Memory used by the RabbitMQ process/Total memory of the VM	0~100	%	N/A	RabbitMQ instance node	1 minute
rabbitmq_disk_read_await	Average Disk Read Time	Average time for each disk I/O read in the monitoring period	> 0	ms	N/A	RabbitMQ instance node	1 minute
rabbitmq_disk_write_await	Average Disk Write Time	Average time for each disk I/O write in the monitoring period	> 0	ms	N/A	RabbitMQ instance node	1 minute
rabbitmq_node_bytes_in_rate	Inbound Traffic	Inbound traffic per second	> 0	Byte/s	1024(IEC)	RabbitMQ instance node	1 minute
rabbitmq_node_bytes_out_rate	Outbound Traffic	Outbound traffic per second	> 0	Byte/s	1024(IEC)	RabbitMQ instance node	1 minute
rabbitmq_node_queues	Queues	Number of queues in the node	> 0	Count	N/A	RabbitMQ instance node	1 minute
rabbitmq_memory_high_watermark	Memory High Watermark	Whether the node has reached the memory high watermark, blocking all producers in the cluster	1: yes 0: no	N/A	N/A	RabbitMQ instance node	1 minute
rabbitmq_disk_insufficient	Disk High Watermark	Whether the node has reached the disk high watermark, blocking all producers in the cluster	1: yes 0: no	N/A	N/A	RabbitMQ instance node	1 minute
rabbitmq_disk_read_rate	Disk Read Speed	Number of bytes read from the disk of the node each second	≥ 0	Byte/s	1024(IEC)	RabbitMQ instance node	1 minute
rabbitmq_disk_write_rate	Disk Write Speed	Number of bytes written to the disk of the node each second	≥ 0	Byte/s	1024(IEC)	RabbitMQ instance node	1 minute
connections_usage	Connection Usage	Percentage of current connections to the maximum number of connections	≥ 0	%	N/A	RabbitMQ instance node	1 minute

Queue Metrics

**Table 3** Queue metrics
Metric ID	Metric Name	Description	Value Range	Unit	Conversion Rule	Monitored Object (Dimension)	Monitoring Period (Raw Data)
queue_messages_unacknowledged	Unacknowledged Messages	Number of messages that have been consumed but not acknowledged in the RabbitMQ queue	0–10,000,000	Count	N/A	RabbitMQ instance queue	1 minute
queue_messages_ready	Queue Available Messages	Number of messages that can be retrieved in a RabbitMQ queue	0–10,000,000	Count	N/A	RabbitMQ instance queue	1 minute
queue_consumers	Consumers	Number of consumers that are subscribed to the queue	≥ 0	Count	N/A	RabbitMQ instance queue	1 minute
queue_messages_publish_rate	Production Rate	Number of messages sent to the queue each second	≥ 0	Count/s	N/A	RabbitMQ instance queue	1 minute
queue_messages_ack_rate	Consumption Rate (Manual)	Number of acknowledged messages sent from the queue to clients each second	≥ 0	Count/s	N/A	RabbitMQ instance queue	1 minute
queue_messages_deliver_get_rate	Consumption Rate	Number of messages sent from the queue each second	≥ 0	Count/s	N/A	RabbitMQ instance queue	1 minute
queue_messages_redeliver_rate	Redelivery Rate	Number of messages in the queue redelivered each second	≥ 0	Count/s	N/A	RabbitMQ instance queue	1 minute
queue_messages_persistent	Total Persisted Messages	Total number of persisted messages in the queue. This is always 0 for transient queues.	≥ 0	Count	N/A	RabbitMQ instance queue	1 minute
queue_messages_ram	Total Messages in RAM	Total number of messages in the queue that are kept in RAM	≥ 0	Count	N/A	RabbitMQ instance queue	1 minute
queue_memory	Bytes Consumed by Erlang	Bytes of memory consumed by the Erlang process associated with the queue, including stack, heap, and internal structures	≥ 0	Byte	1024(IEC)	RabbitMQ instance queue	1 minute
queue_message_bytes	Total Message Size	Total number of bytes of all messages in the queue	≥ 0	Byte	1024(IEC)	RabbitMQ instance queue	1 minute