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.

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	-	-	int	package-functionname
maxDuration	Maximum Duration	Maximum duration of function invocation	ms	-	-	int	package-functionname
minDuration	Minimum Duration	Minimum duration of function invocation	ms	-	-	int	package-functionname