Help Center/ FunctionGraph/ User Guide/ Monitoring/ Metrics/ Creating an Alarm Rule

Updated on 2024-11-12 GMT+08:00

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Creating an Alarm Rule

After creating a function and trigger, you can monitor the invocation and running statuses of the function in real time.

Viewing Function Metrics

FunctionGraph differentiates the metrics of a function by version, allowing you to query the metrics of a specific function version.

Procedure

Create an alarm rule for a function to report metrics to Cloud Eye so that you can view monitoring graphs and alarm messages on the Cloud Eye console.

Log in to the FunctionGraph console. In the navigation pane, choose Functions > Function List.
Click the name of the desired function.
On the displayed function details page, select a function version or alias, and choose Monitoring > Metrics.
Click Create Alarm Rule.
Set alarm parameters and click Next as shown in Figure 1.

Figure 1 Creating an alarm rule
Enter a rule name and click OK.

After a function is deleted, the alarm rules created for it will not be updated in real time on the Cloud Eye console and may continue to be displayed there for a maximum of seven days.

Function Metrics

Table 1 lists the function metrics that can be monitored by Cloud Eye.

**Table 1** Function metrics
Metric	Display Name	Description	Unit	Upper Limit	Recommended Threshold	Value Type	Dimension
count	Invocations	Number of function invocations	Count	-	-	int	package-functionname
failcount	Errors	Number of invocation errors	Count	-	-	int	package-functionname
rejectcount	Throttles	Number of function throttles	Count	-	-	int	package-functionname
duration	Average Duration	Average duration of function invocation	ms	-	-	float	package-functionname
maxDuration	Maximum Duration	Maximum duration of function invocation	ms	-	-	float	package-functionname
minDuration	Minimum Duration	Minimum duration of function invocation	ms	-	-	float	package-functionname
concurrency	Concurrency	The number of requests that can be processed concurrently	Count	-	-	int	package-functionname
payPerUseInstance	Elastic Instances	Number of instances actually used by a function after reserved instances are excluded	Count	-	-	int	package-functionname
failRate	Error Rate	Percentage of errors to the total invocations of a function	%	-	-	float	package-functionname
functionErrorCount	Function Error Count	Number of function errors that occur during invocation	Count	-	-	float	package-functionname
memoryUsed	Memory	Memory used by the function	MB	-	-	float	package-functionname
duration_p500	Duration (P50)	P50 execution duration of the function	ms	-	-	float	package-functionname
duration_p800	Duration (P80)	P80 execution duration of the function	ms	-	-	float	package-functionname
duration_p950	Duration (P95)	P95 execution duration of the function	ms	-	-	float	package-functionname
duration_p990	Duration (P990)	P990 execution duration of the function	ms	-	-	float	package-functionname
duration_p999	Duration (P999)	P999 execution duration of the function	ms	-	-	float	package-functionname
instances	Instances	Number of instances for function invocation	Count	-	-	int	package-functionname
systemErrorCount	System Errors	Number of system errors that occur during function invocation	Count	-	-	int	package-functionname
reservedinstancenum	Reserved Instances	Number of reserved instances	Count	-	-	int	package-functionname
functionCost	Resource Usage	Resources used by the function (Memory x Duration)	MB	-	-	float	package-functionname

**Table 2** Flow metrics
Metric	Display Name	Description	Unit	Upper Limit	Recommended Threshold	Value Type	Dimension
ExecutionsStarted	Executions Started	Number of instances that start to execute	Count	-	-	int	ProjectId
ExecutionsAborted	Executions Aborted	Number of instances that are aborted	Count	-	-	int	ProjectId
ExecutionsTimedOut	Executions TimedOut	Number of instances that run out of time	Count	-	-	int	ProjectId
ExecutionsSucceeded	Executions Succeeded	Number of instances that execute successfully	Count	-	-	int	ProjectId
ExecutionsFailed	Executions Failed	Number of instances that execute unsuccessfully	Count	-	-	int	ProjectId