DMS for RocketMQ Metrics

Introduction

This section describes the metrics that DMS for RocketMQ reports to Cloud Eye. You can view metrics and alarms by using the DMS for RocketMQ console.

Namespace

SYS.DMS

Instance Metrics

**Table 1** Instance metrics
Metric ID	Metric Name	Description	Value Range	Monitored Object	Monitoring Period (Raw Data)
instance_produce_msg	Created Messages	Number of messages received by the instance per minute Unit: count	> 0	RocketMQ instance	1 minute
instance_consume_msg	Retrieved Messages	Number of messages retrieved from the instance per minute Unit: count	> 0	RocketMQ instance	1 minute
current_topics	Topics	Number of topics in the instance Unit: count	≥ 0	RocketMQ instance	1 minute
current_queues	Queues	Number of queues in the instance Unit: count	≥ 0	RocketMQ instance	1 minute
instance_accumulation	Accumulated Messages	Total number of messages accumulated in all consumer groups of the instance Unit: count	≥ 0	RocketMQ instance	1 minute

Broker Metrics

**Table 2** Broker metrics
Metric ID	Metric Name	Description	Value Range	Monitored Object	Monitoring Period (Raw Data)
broker_produce_msg	Created Messages	Number of messages received by the broker per minute Unit: count	> 0	RocketMQ instance broker	1 minute
broker_consume_msg	Retrieved Messages	Number of messages retrieved from the broker per minute Unit: count	> 0	RocketMQ instance broker	1 minute
broker_produce_rate	Message Creation Rate	Number of messages received by the broker per second Unit: count/s	> 0	RocketMQ instance broker	1 minute
broker_consume_rate	Message Retrieval Rate	Number of messages retrieved from the broker per second Unit: count/s	> 0	RocketMQ instance broker	1 minute
broker_total_bytes_in_rate	Inbound Traffic	Inbound traffic to the broker per second Unit: byte/s	> 0	RocketMQ instance broker	1 minute
broker_total_bytes_out_rate	Outbound Traffic	Outbound traffic from the broker per second Unit: byte/s	> 0	RocketMQ instance broker	1 minute
broker_cpu_core_load	Average Load per CPU Core	Average load of each CPU core in the broker VM	> 0	RocketMQ instance broker	1 minute
broker_disk_usage	Disk Capacity Usage	Disk usage of the broker VM Unit: %	0–100	RocketMQ instance broker	1 minute
broker_memory_usage	Memory Usage	Memory usage of the broker VM Unit: %	0–100	RocketMQ instance broker	1 minute
broker_alive	Broker Status	Indicates whether the broker is alive.	1: alive 0: not alive	RocketMQ instance broker	1 minute
broker_connections	Connections	Number of connections used by the VM Unit: count	≥ 0	RocketMQ instance broker	1 minute
broker_cpu_usage	CPU Usage	CPU usage on the VM Unit: %	≥ 0	RocketMQ instance broker	1 minute
broker_disk_read_await	Average Disk Read Time	Average time for each disk I/O read Unit: ms	≥ 0	RocketMQ instance broker	1 minute
broker_disk_write_await	Average Disk Write Time	Average time for each disk I/O write Unit: ms	≥ 0	RocketMQ instance broker	1 minute
broker_produce_p99	Message Creation Processing (99th Percentile)	The 99th percentile of time taken to process all creation requests, in ascending order Unit: ms	≥ 0	RocketMQ instance broker	1 minute
broker_produce_p999	Message Creation Processing (99.9th Percentile)	The 99.9th percentile of time taken to process all creation requests, in ascending order Unit: ms	≥ 0	RocketMQ instance broker	1 minute
broker_retention_period	Message Retention Period	How long ago the earliest message was saved on the broker Unit: hour	≥ 0	RocketMQ instance broker	1 minute
broker_produce_success_rate	Creation Success Rate	Percentage of creations that were successfully requested on the broker Unit: %	≥ 0	RocketMQ instance broker	1 minute
broker_produce_scheduled_msg	Scheduled Messages Created per Minute	Number of scheduled messages created on the broker per minute Unit: count	≥ 0	RocketMQ instance broker	1 minute
broker_disk_read_rate	Disk Read Speed	Read traffic on the disk Unit: byte/s	≥ 0	RocketMQ instance broker	1 minute
broker_disk_write_rate	Disk Write Speed	Write traffic on the disk Unit: byte/s	≥ 0	RocketMQ instance broker	1 minute

Topic Metrics

**Table 3** Topic metrics
Metric ID	Metric Name	Description	Value Range	Monitored Object	Monitoring Period (Raw Data)
topic_produce_msg	Created Messages	Number of messages received by the topic per minute Unit: count	> 0	RocketMQ instance queue	1 minute
topic_consume_msg	Retrieved Messages	Number of messages retrieved from the topic per minute Unit: count	> 0	RocketMQ instance queue	1 minute
topic_produce_rate	Message Creation Rate	Number of messages received by the topic per second Unit: count/s	> 0	RocketMQ instance queue	1 minute
topic_consume_rate	Message Retrieval Rate	Number of messages retrieved from the topic per second Unit: count/s	> 0	RocketMQ instance queue	1 minute
topic_bytes_in_rate	Message Creation	Message creation traffic of the topic Unit: byte/s	≥ 0	RocketMQ instance queue	1 minute
topic_bytes_out_rate	Message Retrieval	Message retrieval traffic of the topic Unit: byte/s	≥ 0	RocketMQ instance queue	1 minute

Consumer Group Metrics

**Table 4** Consumer group metrics
Metric ID	Metric Name	Description	Value Range	Monitored Object	Monitoring Period (Raw Data)
group_consume_msg	Retrieved Messages	Number of messages retrieved by the consumer group per minute Unit: count NOTE: This metric is available only when Topic is set to All topics on the By Consumer Group tab page.	> 0	Consumer group of a RocketMQ instance	1 minute
group_accumulation	Available Messages	Number of messages accumulated in the consumer group Unit: count NOTE: This metric is available only when Topic is set to All topics on the By Consumer Group tab page.	> 0	Consumer group of a RocketMQ instance	1 minute
group_topic_consume_msg	Retrieved Messages	Number of messages in the specified topic that are retrieved by the consumer group per minute Unit: count NOTE: This metric is available only when Topic is set to a specified topic on the By Consumer Group tab page.	> 0	Consumer group of a RocketMQ instance	1 minute
group_topic_consume_rate	Message Retrieval Rate	Number of messages in the specified topic that are retrieved by the consumer group per second Unit: count/s NOTE: This metric is available only when Topic is set to a specified topic on the By Consumer Group tab page.	> 0	Consumer group of a RocketMQ instance	1 minute
group_topic_accumulation	Available Messages	Number of messages in a specific topic Unit: count NOTE: This metric is available only when Topic is set to a specified topic on the By Consumer Group tab page.	> 0	Consumer group of a RocketMQ instance	1 minute

Dead Letter Queue Metrics

**Table 5** Dead letter queue metrics
Metric ID	Metric Name	Description	Value Range	Monitored Object	Monitoring Period (Raw Data)
dlq_accumulation	Messages in the Dead Letter Queue	Number of messages in the dead letter queue Unit: count	> 0	Dead letter queue of a RocketMQ instance	1 minute

Dimensions

Key	Value
reliablemq_instance_id	RocketMQ instance
reliablemq_broker	RocketMQ instance broker
reliablemq_topics	RocketMQ instance queue
reliablemq_groups	Consumer group of a RocketMQ instance
reliablemq_groups_topics	Consumer group of a RocketMQ instance queue
reliablemq_dlq_topics	Dead letter queue of a RocketMQ instance