Metric descriptions and procedures for Cloud Monitor-Simple Message Queue (formerly MNS)(SMQ)-阿里云帮助中心

Usage

The new metrics are available in the China (Zhangjiakou), China (Chengdu), South Korea (Seoul), and Thailand (Bangkok) regions. Support for more regions will be added gradually.
In the Cloud Monitor console, choose Cloud Resource Monitoring > Cloud Service Monitoring > Middleware > Lightweight Message Queue (formerly MNS) to create new alert rules. The previous entry points, Message Service - Queue and Message Service - Topic, have been decommissioned.

Warning
Alert rules that depend on the old Cloud Monitor metrics will become invalid. To prevent monitoring gaps, you must recreate your alert rules at the new entry point (Middleware > Lightweight Message Queue (formerly MNS)) as soon as possible.

Metrics

Note

The AgeOfOldestMessage (message accumulation delay) and NumberOfMessagesInvisible (number of invisible messages) metrics are temporarily unavailable in the following regions: China (Beijing), China (Hangzhou), China (Shanghai), China (Shenzhen), Singapore, and UAE (Dubai). This also applies to the China East 2 (Shanghai) Finance, China South 1 (Shenzhen) Finance, and China North 2 (Beijing) Gov 1 regions.

Category	Metric	MetricName	Unit
User	Maximum API QPS	MaxApiQpsPerUser	count/s
	API QPS usage	WatermarkOfApiQps	%
	Maximum console API QPS	MaxConsoleApiQpsPerUser	count/s
	Console API QPS usage	WatermarkOfConsoleApiQps	%
Queue	Message accumulation delay	AgeOfOldestMessage	ms
	Number of scheduled messages	NumberOfMessagesDelayed	count
	Number of visible messages	NumberOfMessagesVisible	count
	Number of invisible messages	NumberOfMessagesInvisible	count
	Number of Send API calls	NumberOfSendAPICalls	count
	Number of Receive API calls	NumberOfReceiveAPICalls	count
	Number of empty Receive API calls Note This metric measures the number of Receive API calls that do not return a message. You can configure long polling to reduce the number of requests and lower costs.	NumberOfEmptyReceives	count
	Number of Delete API calls	NumberOfDeleteAPICalls	count
	Number of ChangeMessageVisibility API calls	NumberOfChangeMessageVisibilityAPICalls	count
	Number of BatchSend API calls	NumberOfBatchSendAPICalls	count
	Number of BatchReceive API calls	NumberOfBatchReceiveAPICalls	count
	Number of BatchDelete API calls	NumberOfBatchDeleteAPICalls	count
Topic	Number of publish requests per minute	NumberOfPublishAPICallsPerTopic	count
Subscription	Number of pushes per subscription	NumberOfPushPerSubscription	count
	Subscription processing success rate	ProcessSuccessRatePerSubscription	%
	Age of the oldest message in a subscription	AgeOfOldestVisibleMessagePerSubscription	ms
	Number of accumulated messages in a subscription	NumberOfMessagesVisiblePerSubscription	count

Metric differences

Navigation

Old metrics: In the Cloud Monitor console, the metrics were located under Cloud Resource Monitoring > Cloud Service Monitoring > Message Service - Queue and Message Service - Topic.
New metrics: In the Cloud Monitor console, choose Cloud Resource Monitoring > Cloud Service Monitoring > Middleware > Lightweight Message Queue (formerly MNS).

Metrics

Category	New Cloud Monitor		Old Cloud Monitor
Category	Metric	MetricName	Metric	MetricName
Queue	Number of visible messages	NumberOfMessagesVisible Minimum period: 60s	Number of active messages	ActiveMessages Minimum period: 300s
	Number of scheduled messages	NumberOfMessagesDelayed Minimum period: 60s	Delayed messages	DelayMessages Minimum period: 300s
	Number of invisible messages	NumberOfMessagesInvisible Minimum period: 60s	Number of inactive messages	InactiveMessages Minimum period: 300s
	Number of Send API calls	NumberOfSendAPICalls	Send message requests	SendMessageCount
	Number of BatchSend API calls	NumberOfBatchSendAPICalls	Batch send message requests	BatchSendMessageCount
	Number of Receive API calls	NumberOfReceiveAPICalls	Receive message requests	ReceiveMessageCount
	Number of BatchReceive API calls	NumberOfBatchReceiveAPICalls	Batch receive message requests	BatchReceiveMessageCount
	Number of Delete API calls	NumberOfDeleteAPICalls	Delete message requests	DeleteMessageCount
	Number of BatchDelete API calls	NumberOfBatchDeleteAPICalls	Batch delete message requests	BatchDeleteMessageCount
	Number of ChangeMessageVisibility API calls	NumberOfChangeMessageVisibilityAPICalls	Message visibility modifications	ChangeMessageVisibilityCount
	Number of empty Receive API calls	NumberOfEmptyReceives	N/A
Topic	Number of publish requests per minute	NumberOfPublishAPICallsPerTopic	N/A
	Number of pushes	N/A. Use the "Number of pushes per subscription" metric instead.	Number of pushes	TopicCountNew
	Push success rate (%)	N/A. Use the "Subscription processing success rate" metric instead.	Push success rate (%)	TopicSuccessRateNew
Subscription	Number of pushes per subscription	NumberOfPushPerSubscription You can view and monitor this metric at the subscription level.	N/A
	Subscription processing success rate	ProcessSuccessRatePerSubscription You can view and monitor this metric at the subscription level.	N/A
	Age of the oldest message in a subscription	AgeOfOldestVisibleMessagePerSubscription	N/A
	Number of accumulated messages in a subscription	NumberOfMessagesVisiblePerSubscription	N/A
User	Maximum API QPS	MaxApiQpsPerUser	N/A
	API QPS usage	WatermarkOfApiQps	N/A
	Maximum console API QPS	MaxConsoleApiQpsPerUser	N/A
	Console API QPS usage	WatermarkOfConsoleApiQps	N/A

Billing

The Cloud Monitor feature for Lightweight Message Queue (formerly MNS) is free of charge.

View metrics

Log on to the SMQ console. In the left-side navigation pane, click Cloud Monitor.
In the top navigation bar, select a region. Example: China (Hangzhou).
On the Cloud Monitor page, click the tab of the resources that you want to view and select a time range.

Create an alert rule

Go to the details page of the queue or topic that you want to manage and click the Cloud Monitor tab.
On the Cloud Monitor tab, click Create Alert Rule.
The Create Alert Rule panel in the Cloud Monitor console appears.
In the Create Alert Rule panel, configure the rule and notification settings as prompted. Then, click Confirm. For more information about the parameters, see Create an alert rule.